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Anderson Greenwood POPRV CatalogSeries 200, 400, 500, 700, and 800

Copyright © 2005 Tyco Flow Control. All rights reserved. ANGMC-0243-US-0501Total Flow Control Solutions™

Flow Control

ANDERSONGREENWOOD

In the highly specialized field of pressurerelief devices, no manufacturer can matchthe diversified products and experience of Anderson Greenwood. With more designs than any other worldwidemanufacturer, Anderson Greenwood’sproduct technology solves applicationsfrom the most severe problem to verybasic service conditions. These designsinclude a high temperature metal seatedpilot valve, premium performance springoperated valves, API 526 flangedconventional and balanced bellows valvesand an extensive iron and bronze productrange. In addition to our well-knownproduct quality, ISO 9001 certification hasbeen awarded to our Stafford, Texasmanufacturing plant, ensuring the ability todeliver products that meet customers’precise requirements well into the 21stcentury and beyond.

Why Specify PilotOperated Pressure ReliefValves?

• Reduced Installation Costs

• Reduced Product Loss

• Increased Production Levels

• Reduced Maintenance Costs

• Reduced Environmental Pollution

• Increased Operating Income

Pilot Operated Pressure Relief Valves

Anderson Greenwood is a registered trademark ofTyco International Services AG or its affiliates inthe United States and/or other countries. All otherbrand names, product names, or trademarksbelong to their respective holders.

ContentsFeatures and Benefits 2 – 3

How to Select a Valve Type 4

Application Guide 4

SelectionPilot Types

Series 200 5 – 7Series 400 8 – 10Series 500 11 – 12Series 700 13 – 16Series 800 17 – 19Series 400 Iso-Dome 20 – 21

SizingHow to Size a Valve 22

Sizing Formulas 23

Sizing Factors 24 – 29

Valve Orifice Areas 30

OrderingHow to Order a Valve 31

Materials of ConstructionStandard Main Valve 32 – 33Series 200 Pilot 34 – 35Series 400 Pilot 36 – 37Series 500 Pilot 38 – 39Series 700 Pilot 40 – 41Series 800 Pilot 42 – 43

Inlet Flange Ratings 44

Recommended Soft Goods Limits 44 – 52

Model Numbering 53

Accessories and Options 54 – 58

Dimensions and Weights 59 – 63

Outlet Flange Ratings 64


Copyright © 2005 Tyco Flow Control. All rights reserved. ANGMC-02431

Ordering (to order the valve)

Construct a ModelNumber

(Page 53)

Review Accessories and Options

(Pages 54 - 56)

ReviewDimensions and Weights

(Pages 59 - 63)

How to Use This Catalog

Anderson Greenwood is the establishedand consistent leader in pilot operated,pressure relief valve technology. Morethan three decades of pilot valveexperience enables us to produce, supply,and support pressure relief valves that:

• assure leak-free system operation veryclose to PRV set pressure

• relieve consistently within code tolerances

• reseat bubble-tight after a short andstable blowdown

• operate through many relief cycleswithout maintenance

This catalog is divided into three primaryparts, which provide step-by-stepinstructions that make it easy for you toselect a valve type, determine the properorifice area, and order the valve.

Part 1, Selection, helps you determine the type of valve that best suits your application.

Part 2, Sizing, provides the informationyou need to choose the correct valveorifice area. (Sizing is actually part ofvalve selection, but since sizing is such animportant factor in selection, a separatesection is provided to help you make theproper choice.)

Part 3, Ordering, explains how to selectand order the specific model number, afteryou have chosen the appropriate valvetype and size.

UseApplication Guide

(Page 4)

Selection (to narrow your choice)

UseSizing Formulas

(3)

ReviewOrifice Areas

(Page 30)

ReviewSizing Factors(Pages 24 - 29)

Sizing (to identify orifice size required)



• Soft Seat Design. Provides repeatablebubble-tight performance before andafter each relief cycle.

• Metal-to-Metal Seat Design. Providespilot valve performance in hightemperature service.

• Bubble-tight Seats Near SetPressure. Allows higher systemoperating pressure and, therefore,maximum process output; not assensitive to vibrational and pulsatingservice; reduces product loss.

• Pop Action Available. No main valvethrottling, which helps prevent freeze-ups in cryogenic or refrigerant typeservices.

• Modulation Action Available.Minimized product loss per reliefsituation; reduced environmentalpollution; avoids oversizingconsequences; not as sensitive to inletpressure losses as pop action.

• Field Test Connection. Quick simpleverification of set pressure while valveremains in service.

• Balanced Design. Lift not affected byback pressure; no expensive andfragile bellows required as with directspring valves.

• Externally Adjustable Blowdown.Allows blowdown adjustment with valvein service; no costly removal of valve orsystem shutdown required.

• Patented, Piston Wedge Ring.Prevents resonant chatter; no resultantsevere valve damage, lost product orhazard to personnel.

• Full Lift at Set Pressure. Nooverpressure required for full lift; allowsD.O.T. installation to be set higher thanMaximum Allowable OperatingPressure (MAOP) when pop action isused.

• Replaceable Soft Seats and Seals.All seats and seals are easily andquickly renewable; no expensive, time-consuming lapping required.

Features and Benefits



Higher Maximum Set PressuresAnderson Greenwood’s POPRVs are ableto operate at considerably higher setpressures than is possible with springloaded SRVs. In some cases one POPRVcan replace five spring loaded SRVsthereby considerably reducing capital and installation costs.

Lower Height ProfileBecause the Anderson GreenwoodPOPRV does not use a spring to hold the main valve seat closed, considerableheight savings are achieved in the valvedesign. The same pilot valve is used for all main valve sizes providing significantheight savings particularly on larger andhigher pressure valves. This enables thePOPRVs to be used in situations wherespace is at a premium.

Weight SavingsAs valve size and set pressure increases,a larger spring is needed to keep the seat of a spring loaded SRV closed — increasing the weight of the valve. Signifi-cant weight savings are provided by theAnderson Greenwood POPRV, which usessystem pressure via the pilot valve to maintain seat tightness. These weightsavings allow cost reductions on plantconstruction and, in particular, on offshoreoil and gas platforms.

Maximum Set Pressure Comparison

Valve Orifice Area Direct Spring Anderson Greenwood in [mm] in2 [cm2] Operated, psig [barg] Pilot Operated, psig [barg]

8 x 10 Full Bore38.96 [251.37] N/A 1480+ [102.0+]

[200 x 250 Full Bore]

8T10 26.00 [167.75] 300 [20.7] 1480+ [102.0+]

6R8 16.00 [103.23] 300 [20.7] 1480+ [102.0+]

4P6 6.38 [41.16] 1000 [69.0] 3705+ [255.5+]

3K4 1.83 [11.86] 2220 [153.1] 3705+ [255.5+]

Height Comparison

Valve Rating Direct Spring Anderson Greenwood Heightin [mm] Operated, in [mm] Pilot Operated, in [mm] Saving

8 x 10150# 57 [1448] 30 [762] 47%

[200 x 250]

6 x 8[150 x 200]

300# 43 [1092] 26 [660] 40%

4 x 6300# 37 [940] 23 [584] 38%

[100 x 150]

3 x 4[80 x 100]

600# 34 [864] 20 [508] 41%

2 x 3600# 23 [584] 19 [483] 19%

[50 x 80]

Weight Comparison

Valve Rating Direct Spring Anderson Greenwood Weightin [mm] Operated, lb [kg] Pilot Operated, lb [kg] Saving

8 x 10150# 750 [340.9] 421 [191.4] 44%

[200 x 250]

6 x 8[150 x 200]

300# 480 [218.2] 264 [120.0] 45%

4 x 6300# 230 [104.5] 160 [72.7] 30%

[100 x 150]

3 x 4[80 x 100]

600# 160 [72.7] 92 [41.8] 42%

2 x 3600# 70 [31.8] 53 [24.1] 24%

[50 x 80]




Application Guide

Options

Set Pressure Valve Seriespsig [barg] 200 400 500 700 800

15 – 720 [1.03 – 49.64]1 X

15 – 1480 [1.03 – 101.97] X

25 – 6170 [1.72 – 413.70]3 X

50 – 1200 [3.45 – 82.74] X

1481 – 6170 [102.12 – 425.42] X

Valve Action

Pop X X

Modulating X X X

Service

Gas/Vapor X X X X X

Liquid2 X X X

Steam X X

Process Temperature, °F [°C]

Ambient to +1000 [Ambient to +538] X

-65 to +600 [-54 to +315] X X

-423 to +600 [-252 to +315] X

-65 to +515 [-54 to +268] X

Notes

1. 11⁄2-inch x 3-inch [40 x 80 mm] Type 546has 25 psig [1.72 barg] minimum set.

2. Use Type 249, 259, 269 for cryogenic liquid(set pressure range for this valve type is 25to 1440 psig [1.72 to 99.3 barg]).

3. Higher pressures available on special order.

4. Not all valves are available for service at the extreme limits for both temperature and pressure simultaneously.

How to Select a Valve Type

To determine which pilot operated safetyrelief valve type is most appropriate foryour application, please use the followingguidelines:

1. In the Application Guide (below), notewhich valve types seem mostappropriate for your application.

2. Read the associated descriptive andoperating information in the catalogdedicated to that type of valve (Series200, 400, 500, 700 or 800).

3. Using the formulas in Part 2, Sizing(page 25), determine the required orifice area for your service conditionsand select the orifice area that suitsyour application.

4. If you have been able to determine apilot operated valve type and orificearea that suits your application, refer to Part 3, Ordering (page 33), to selectand order a specific model number. Ifyou were not able to find a valve typeto meet your application needs, pleasecontact your Anderson Greenwoodrepresentative, or our factory direct, for assistance.



Series 200 Pop Action Safety Valve

Anderson Greenwood’s Series 200 popaction, safety valve, with non-flowing pilot,provides system overpressure protectionyou can count on. Since its 1966introduction, it has been continuouslyrefined and remains the standard againstwhich all other pilot operated valves arecompared. This valve is well suited forgas, vapor, and many mixed phaseservices, including dirty and/or wetapplications. The Series 200 is availablewith effective orifice areas of 0.110through 63.50 inch2 [0.710 through 409.7cm2], valve inlet sizes 1-inch through 10-inch [25 mm through 254 mm], setpressures from 25 to over 6000 psig [1.72 to over 413.7 barg], and continuousservice temperatures from -423°F to+600°F [-253°C to +315°C].


• Balanced Design. Proper valveoperation and lift are unaffected byback pressure. Costly and fragile metalbellows are not required.

• External, independent blowdownadjustment. Provides easy, accurateand repeatable settings. Reducescostly removal of valve or systemdowntime.

• ASME Section VIII Code Stamp.Certified National Board capacities forgas service assures user ofindependent third party flow rateverification.

• Reduced Maintenance Cost. Softseats greatly extend service life,making costly and time consumingmetal seat lapping unnecessary.

• Suited for Dirty or Wet Service.Non-flowing pilot minimizes entrance ofdirt and formation of hydrates in thepilot. Due to low velocities within thepilot and supply tubing, most particleswill drop out upstream of pilot inletscreen. Optional cartridge type pilotfilter is available for extremely dirtyservices.

• Increased System Output. Becauseof total valve tightness to at least 95percent of set pressure, the systemcan be operated nearer set pressurewithout valve leakage, resulting ingreater system throughput.

• Unique Field Test Capability. Thisoption allows accurate set pressureverification with valve in service. Nosystem isolation block valve or rupturedisc required.

• Reduced Product Loss and Pollution.Soft seats for premium tightness beforeand after relief cycles.

• Rugged Bracket Pilot Mounting.Extremely rigid mounting protectsagainst vibration and carelesshandling. Shake table proven.

• Full Lift at Set Pressure. AllowsD.O.T. installation to be set higher than Maximum Allowable OperatingPressure (MAOP), resulting inincreased system throughput.



Series 200 Operations

Normal Closed Position

Relieving Position

Main Valve

Piston Seal

Dome100% of set

Dome

PilotDischarge

Pilot

Set PressureAdjustment

Relief Seat

BlowdownSeat

100% of set

System

BlowdownAdjustment

Main Valve SeatPiston


100% of set

Dome

100% of set

System

0%




OperationIn the normal closed position, full systempressure is sensed at the pressure pick-up in the main valve inlet. This pressure is transmitted through the pilot and intothe dome (volume above the main valvepiston). Because the piston seal area isgreater than the main seat sealing area,the net force on the piston is downward,keeping the valve tightly closed. Thehigher the system pressure, the greaterthe downward force on the piston —exactly the opposite of direct spring operated valves.

When the pilot senses set pressure, itsrelief seat snaps open and the blowdownseat snaps closed simultaneously, ventingthe dome pressure through the pilot reliefseat to atmosphere. This allows the mainvalve to open fully at set pressure. Theblowdown seat is held tightly closed duringthe relief cycle until the desired systemblowdown is achieved, at which time theblowdown seat snaps open and the reliefseat snaps closed simultaneously. Thisfully repressures the dome to systempressure and closes the main valve.

The valve reseat pressure is dependentupon the lift of the spindle off the reliefseat. Higher spindle lift results in morespring compression and a higher spindleclosing force stored in the pilot spring. Thehigher the lift, the shorter the blowdown(higher valve reseat pressure). Thespindle lift and thus blowdown areexternally adjustable by raising or loweringthe blowdown assembly of the pilot, thuschanging the spindle travel.

Specifications

• Non-flowing pilot.

• Replaceable main valve seat locatedon piston to take wear.

• Pilot mounted on severe duty bracket.

• Vertical pilot mounting.

• Externally adjustable blowdown.

• Options, such as auxiliary filter, spikesnubber, and unloader mounted onmain valve with severe duty brackets.

• Field replaceable main valve nozzle.

• Lettered orifice valves meet APIstandard 526 dimension requirements.

Series 200 Specifications

Pressure

Pressure

Do

wn

Fo

rce

on

Mai

n V

alve

Pis

ton

0 Set

Mai

n V

alve

Pis

ton

Lif

t

0 Set

Clo

sing

Ope

ning

100% Lift

3% MinimumBlowdown



The Series 400 modulating valve, withnon-flowing pilot, incorporates anadvanced design in pilot operated valves.Under process conditions, both pilot andmain valve can be tight to as high as 98percent of set pressure. The main valvelifts proportionally according to demand,restricting product loss to only whatneeds to be relieved to prevent processpressure from exceeding the codeallowance.

The Series 400 valve is well suited for gasand/or liquid services, including dirtyand/or wet services. The modulatingaction is strongly preferred for liquid reliefbecause it eliminates the destructiveeffects of ‘liquid hammer.’ The Series 400valve is available with effective orificeareas of 0.110 through 63.50 inch2

[0.710 through 409.7 cm2] valve inlet sizes1-inch through 10-inch [25 mm through254 mm], set pressure between 15 and1480 psig [1.03 and 102.0 barg], andcontinuous service temperatures from -65°F to +600°F [-54°C to +315°C].


• Unique Field Test Capability. Allowsaccurate set pressure verification withvalve in service. No system isolationvalve or rupture disc required. All fieldtest connections are provided with anindicator for accurate and easy setpressure testing.

• Reduced Product Loss andPollution. Soft seats for premium tightness before and after relief cycles.Modulating action relieves minimumproduct to prevent overpressure.

• ASME Section VIII Code Stamp.Certified National Board capacities for both gas and liquid service assuresuser of independent third party flowrate verification.

• Non-flowing Pilot. Minimizes entranceof dirt and formation of hydrates inpilot. Due to low velocities within thepilot and supply tubing, most particleswill drop out upstream of pilot inletscreen. Optional cartridge type pilotfilter is available for extremely dirtyservices.

• Rugged Bracket Pilot Mounting.Extremely rigid mounting protectingagainst vibration and carelesshandling. Shake table proven.

• Reduced Noise. Modulating actionminimizes flow and resultant noise during normal system upset, reducingnoise abatement costs.

• Increased System Output. Becauseof valve tightness to 98 percent of setpressure, the system can be operatednearer set pressure without valveleakage, resulting in greater systemthroughput.

• Reduced Maintenance Costs. Softseats greatly extend service life,making costly and time-consumingmetal seat lapping unnecessary.

• Ease of Adjustment. Singleadjustment for set pressure allowsaccurate and dependable setting.

• Balanced Design. Proper valve operation and lift are unaffected by back pressure. Costly and fragile metalbellows are not required.

* Patent Protected

Series 400* Modulating Safety Relief Valve




Sense Diaphragm


Tubed to MainValve Outlet

Feedback Piston

Piston

OutletSeat

InletSeat

Dome

Main Valve

OperationWith no system pressure, the pilot inletseat is open and the outlet seat is closed.As pressure is admitted to the main valveinlet, it enters the pilot through a filterscreen. Pressure is then transmittedthrough passages in the feedback piston,past the inlet seat, into the main valvedome, which causes the main valve pistonto remain closed.

As system pressure increases andapproaches valve set pressure, it actsupward on the sense diaphragm, with thefeedback piston also moving upward toclose the inlet seat. This seals in the mainvalve dome pressure, since the outlet seatis also closed. A small, further increase insystem pressure opens the outlet seat,partially venting the main valve domepressure. This reduced dome pressureacts on the unbalanced feedback piston toreduce feedback piston lift, tending to ‘lockin’ the dome pressure. Thus, at any stableinlet pressure, there will be no pilot flow(i.e., zero leakage).

As inlet pressure rises above setpressure, dome pressure reduction willprovide modulating action of the mainvalve piston proportional to the processupset. The spool/feedback pistoncombination will move, responding tosystem pressure, to alternately allowpressure in the main valve dome toincrease or decrease. This moves themain valve piston to the exact lift that willkeep system pressure constant at therequired flow. Full main valve lift, andtherefore full capacity, is achieved withrelatively little overpressure. As systempressure decreases below set pressure,the feedback piston moves downward andopens the inlet seat to admit systempressure to the dome. This closes themain valve. The pilot exhaust is alwayspiped to the main valve outlet.

Below Set Pressure With Main Valve Closed

Pressure

Mai

n V

alve

Pis

ton

Lift

Set

Clo

sing

100% Lift

Ope

ning

Pressure

Dow

n F

orce

on

Mai

n V

alve

Pis

ton

0 Set

95% Set Pressure,Minimum




Tubed toMain ValveOutlet

Above Set Pressure With Main Valve Fully Open

Specifications


• Single point set pressure adjustment.

• Replaceable main valve seat, locatedon piston to take wear.

• Feedback mechanism in pilot,independent of primary pressuresensing mechanism, to ensure smoothmodulation of main valve.

• Indicator button for field test capability.


• Lettered orifices meet API standard526 dimension requirements.


At or Slightly Above Set Pressure Main Valve Partially Open and Modulating



The Anderson Greenwood Series 500 is aunique soft seated safety relief valvedesigned to handle higher temperatures. Itwas created with a specific designobjective: to decrease the leakageassociated with metal-seated safety reliefvalves under extreme operatingtemperature conditions.

The result is a modulating, soft-seated, pilot operated valve offering premiumtightness with the ability to handletemperatures from -65°F to 515°F [-54°Cto 268°C] and a set pressure range of 15 to 720 psig [1.03 to 49.6 barg].

The soft seat in the Series 500 main valveis more resistant to particulate damagethan a metal seat, has a longer servicelife, and can be quickly replaced while thevalve body remains installed in the line.

Its unique design enables the main valveto be tight at pressures up to set point.After relieving and reseating, it staysbubble-tight, cycle after cycle. Applicationsfor the Series 500 include hot water,steam (ASME section VIII UnfiredPressure Vessels), hot hydrocarbonvapors or liquids, and corrosive services.


• Reduced Product Loss andPollution. Soft seats for premiumtightness before and after relief cycles.

• All Plastic Soft Goods. There are noelastomer seats or seals providingadditional chemical compatibility withthe lading fluid.

• Increased System Output. Becauseof total valve tightness to at least 95percent of set pressure, the systemcan be operated nearer to set pressurewithout valve leakage. The result isgreater system production capability.

• Reduced Maintenance Costs.Resilient seats greatly extend servicelife. Costly and time consuming metalseat lapping is unnecessary.

• Balanced Design. Proper valveoperation and lift are unaffected byback pressure. Costly and fragile metalbellows are not required.

• ASME Section VIII Stamp. CertifiedNational Board capacities for steam,gases, and liquids assures user ofindependent third party flow rateverification.

• Unique Field Test Capability. Allowsaccurate set pressure verification withvalve in service. No system isolationvalve or rupture disc is required. Singleindicator button is available foraccurate and easy verification of setpressure.

• Reduced Noise. Modulating actionminimizes flow and resultant noise during normal system upset reducingnoise abatement costs.

• Ease of Adjustment. Adjustment forset pressure allows accurate anddependable setting.

Series 500 Modulating Safety Relief Valve

OperationIn normal operation, the system pressureacts on the area contained by the mainvalve seat at the bottom of the free-floating differential area piston and on thetop of the piston. Since the top of the

piston is larger than the bottom (seatarea), there is a large downward net forceholding the piston closed. Under staticconditions, the seating force increases asthe system pressure increases andapproaches set point.

When the set pressure is reached, the pilot opens and partially depressurizes thedome. This reduces the force on the top ofthe piston to the point where the upwardforce on the seat area can overcome thereduced downward loading. This causesthe piston to lift, resulting in modulatedflow through the main valve.

When the relief demand has beensatisfied, the pilot closes, full systempressure is diverted to the dome, and thepiston moves downward, closing the mainvalve.

A patented, pressure responsive pistondrag system in the larger Series 500valves eliminates resonant chatter and the severe valve and/or piping damage it can cause. The wedge ring creates apressure-actuated sliding friction force between the piston and liner, preventingresonant chatter.

Specifications

• Durable but replaceable Teflon® seat inmain valve, located on piston to takethe wear. A totally captive seat designeliminates seat extrusion at elevatedtemperatures.

• Teflon®/PEEK seals throughout mainvalve and pilot for optimum chemicalresistance, such as needed for variouschemicals in boiler feed water.

• Dual diaphragm pilot for minimum firstleak-to-relief pressure.

• Single point set pressure adjustment.



• Lettered orifice valves meet APIstandard 526 dimension requirements.

Note

1. Teflon® is a registered trademark of the E. I. duPont de Nemours Company.



Pressure

Mai

n V

alve

Pis

ton

Lif

t

Set

Clo

sing

100% Lift

Ope

ning


DomePressure

Dome

Field TestConnection(optional)

Pilot DischargePiped to MainValve Outlet

Pilot

Liner

Piston Seal

Wedge Ring

Piston

Piston Seal

Seat

SensePickup

Pressure

Dow

n F

orce

on

Mai

n V

alve

Pis

ton

0 Set




The Series 700 pilot operated safety valve is unique as an all metal seated pilot and main valve. This extends the use of pilot technology to temperatures up to 1000°F [538°C]. The valve is suitablefor steam and/or gas service. The Series700 is available with effective areas of0.503 through 26.00 in2 [3.245 through167.7 cm2].

Features and Benefits• All Metal-to-Metal Seating Surfaces.

Trim specifically designed for hightemperature service, plus enhancedchemical compatibility.

• Patented Flexible Disc. Reduces impact wear while increasing seattightness.

• Dampened Trim. Dampeningchambers control the opening andclosing response, increasing valvecycle life.

• Non-Flowing Pilot. Reduces seatwear and minimizes entrance of dirtand particulates in the pilot.

• Adjustable Blowdown. Blowdowncan be adjusted between 3% and 15%by turning the blowdown adjustmentsleeve. Upper and lower blowdownrings and pins are not required, savingtime, parts and costs.

• ASME Section VIII Code Stamp.Certified National Board capacities forsteam and gas service assures user ofindependent third party flow rateverification.

• Unique Field Test Capability, thisoption allows accurate set pressureverification with valve in service. Nosystem isolation block valve or rupturedisc required.

700 Manifolded Dual Pilots*(Optional)• For maximum operating conditions, it

is recommended to use dual pilots withbuilt-in switching mechanism.

• The safety lock allows the operator toisolate only one pilot while the activepilot protects the system.

• In-service testing and replacement ofpilot under operating condition with fullsystem protection.

* Patented

Series 700 Pop Action Safety Valve

Dual Pilots

Manifold

Changeover valves

Safety lock

Field test connection




Class 300 Design Scope

Pressure and Temperature Rating1000 [538]

800[427]

600[316]

400[204]

200[93]

00 200

[13.8]400

[27.6]600

[41.4]800

[55.2]

MaterialCode

S2WCB

S1WCB

°F [°C

]

psig [barg]

S3WC6



800[427]

600[316]

400[204]

200[93]

00 100

[6.9]200

[13.8]300

[20.7]400

[27.6]

MaterialCode

S2WCB

S1WCB

°F [°C

]

psig [barg]

Specifications


• Vertical pilot mounting.

• Externally adjustable blowdown.

• Field replaceable nozzle.

• ANSI pressure class 150, 300 and 600.

• All metal seats/seals.


800[427]

600[316]

400[204]

200[93]

00 200

[13.8]400

[27.6]600

[41.4]800

[55.2]

MaterialCode

S2WCB

S1WCB

°F [°C

]

psig [barg]

S3WC6

1000[69.0]

1200[82.8]




Series 700 Operation

OperationSteam ServiceIn the closed position, when operatingbelow set point, the valve internal pressureis equal to the system pressure and thepiston is pressure balanced.

System pressure is directed to three keyareas of the valve:

1. The Dome, via the dome chargingorifice;

2. The Pilot, via the integral pressuresensing connection and the external pilotinlet sensing line; and

3. The Unloader, via the sensing lineconnections from the pilot dome and theintegral sensing connection from thedome through the cap.

The seating force is produced by systempressure acting on the internal exposeddisc surface area. As system pressureincreases, the seating force increasesproviding maximum seat tightness up to setpoint when the valve opens.

When system pressure reaches set pointand overcomes the pilot spring force, thepilot pops open and sets into motion fourkey reactions:

1. The normally open reseat piston movesinto full lift and closes against theblowdown seat preventing further systempressure from flowing through the pilot.This is the non-flowing pilot feature.

2. Unloader dome pressure is ventedthrough the pilot vent to atmosphere. Withthe internal pilot pressure relieved, thepilot spring is now sensing systemoverpressure in the pilot inlet sensing linevia the spindle-disc-spacer rod-reseatpiston.

3. The venting of unloader dome pressurecreates a pressure imbalance whichopens the unloader piston. Main domepressure is now being vented into thevalve outlet, and the pressure dropbackseats the drain plunger, preventingsystem pressure from charging the dome.

System PressureUnloader

Piston

UnloaderDome

SpindlePilot Disc

Relief Seat(Open)

Spacer

Blowdown Seat (Closed)

Reseat Piston

System Pressure

Nozzle

Disc Piston Dome

Unloader

Pilot

PilotVent

Dome Charging Orifice

Pressure Sensing (Integral)Main Valve

Drain Plunger

Relief Seat(Closed)

Blowdown Seat(Open)

Relieving Position




4. The depressurisation of the piston domepressure produces a pressure imbalancewhich moves the piston/disc assemblyoff the nozzle seat. As the media beginsto exit through the valve outlet, thedownstream disc surface area issubjected to system overpressure andthe piston/disc assembly goes into full liftinstantaneously.

When system overpressure has been fullyrelieved, the pilot spring closes the pilotdisc onto the relief seat. The valve nowgoes into the blowdown phase and setsinto motion the above mentioned four keyreactions in reverse:

1. The pilot disc-spacer rod pushes thereseat piston off the blowdown seat andthe internals of the pilot spring-spindle-disc assembly are once again sensingsystem pressure.

2. With the pilot closed and the pilot ventisolated, system pressure is nowdirected to the unloader dome.

3. Recharging the unloader dome causesthe unloader piston to close and stopsthe depressurisation of the piston domepressure.

4. System pressure is now charging thepiston dome via the dome chargingorifice. The pressure imbalance is nowclosing the piston/disc assembly.

With the main disc closed and outletpressure on the disc eliminated, thesystem pressure acting on the internalexposed area of the disc once again re-establishes maximum seat tightness.

Air, Gas or Vapor ServiceFor air, gas and vapor service, theassembly of the main valve and pilot ismodified for valves 4” x 6” and smaller asfollows:

1. The unloader is deleted and the pilotdome connected directly to cap.

2. The unloader discharge port in thevalve outlet is plugged.

3. The dome charging orifice in the pistonis deleted.

4. A snubber is installed at the pilot inlet todampen system pulsations.

The operation of the main valve and pilotin air, gas and vapor service is the sameas the steam valve.

The pilot is able to vent and depressurizethe main dome with sufficient speed toprovide proper opening and closingperformance without the use of anunloader.

For mixed phase flow, consult the factoryto determine if unloader is required.


System Pressure

Nozzle

Disc

Piston

Dome

Pilot

Pressure Sensing (Integral) Main Valve

Drain Plunger

Relief Seat(Closed)

Blowdown Seat(Open)

PilotVent

Snubber

Normal Closed PositionFor 8” x 10” valves the unloader is utilized to optimize the performance.

Air/Gas/Vapor2” x 3” through 6” x 8”



The Series 800 modulating valve utilizesthe most advanced design in pilot operatedvalves. The non-flowing, modulating pilotcan be set at pressures up to 6170 psig[425.52 barg]. Under these processconditions, the pilot and main valve can betight up to 98 percent of set pressure.

Since the pilot is modulating, the mainvalve lifts proportionally according todemand, restricting product loss to onlythat which needs to be relieved to preventthe process pressure from exceeding thecode allowance. The pilot provides stablelift even on hard liquid systems due to itsunique trim. The 800 Series can also beused in gases or mixed phase ladingfluids, including dirty and/or wet services.

The Series 800 valve is available with the following: effective orifice areas of0.110 through 9.489 in2 [0.710 through61.21 cm2], valve inlet sizes 1-inchthrough 4-inch [25 mm through 100 mm],set pressures between 1481 and 6170 psig [102.13 and 425.52 barg], and continuous temperatures from -65°F to +600°F [-54°C to +315°C].


• High Set Pressure Capability.Provides modulating, non-flowing pilotvalve performance to 6170 psig[425.42 barg].

• Unique Field Test Capability. Allowsaccurate set pressure verification withvalve in service with minimal amount of test gas. All field test connectionsare provided with an indicator foraccurate and easy set pressure testing.

• Reduced Product Loss andPollution. Soft seats for premiumtightness before and after relief cycles.Modulating action relieves minimumproduct to prevent overpressure.

• ASME Section VIII Code Stamp.Certified National Board capacities forboth gas and liquid service assuresuser of third party flow rate verification.

• Non-flowing pilot. Minimizes entranceof dirt and formation of hydrates inpilot. Due to low velocities within thepilot and supply tubing, most particleswill drop out upstream of pilot inletscreen. Optional cartridge type pilotfilter is available for extremely dirtyservices.

• Rugged Bracket Pilot Mounting.Extremely rigid mounting protectsagainst vibration and carelesshandling.

• Reduced Noise. Modulating actionminimizes flow and resultant noise during normal system upset, reducingnoise abatement costs.

• Increased System Output. Becauseof valve tightness to 98 percent of setpressure, the system can be operatednearer set pressure without valveleakage, resulting in greater systemthroughput.

• Ease of Adjustment. Singleadjustment for set pressure allowsaccurate and dependable setting.

• Reduced Maintenance Costs. Softseats greatly extend service life,making costly and time-consumingmetal seat lapping unnecessary.

• Balanced Design. Proper valve operation and lift are unaffected by back pressure. Costly and fragile metalbellows are not required.

Series 800 Modulating Safety Relief Valve



OperationWith no system pressure, the pilot inletseat is open and the outlet seat is closed.As pressure is admitted to the main valveinlet, it enters the pilot through a filterscreen. Pressure is then transmittedthrough passages in the feedback piston,past the inlet seat, into the main valvedome, which causes the main valve pistonto remain closed.

As system pressure increases andapproaches valve set pressure, it actsupward on the sense O-ring seal, with the feedback piston moving upward toclose the inlet seat. This seals in the mainvalve dome pressure, since the outlet seatis also closed. A small, further increase insystem pressure opens the outlet seat,partially venting the main valve domepressure. This reduced dome pressureacts on the unbalanced feedback piston toreduce feedback piston lift, tending to ‘lockin’ the dome pressure. Thus, at any stableinlet pressure, there will be no pilot flow(i.e., zero leakage).

As inlet pressure rises above setpressure, dome pressure reduction willprovide modulating action of the mainvalve piston proportional to the processupset. The spool/feedback pistoncombination will move, responding tosystem pressure, to alternately allowpressure in the main valve dome toincrease or decrease. This moves themain valve piston to the exact lift that willkeep system pressure constant at therequired flow. Full main valve lift, andtherefore full capacity, is achieved withrelatively little overpressure. As systempressure decreases below set pressure,the feedback piston moves downward andopens the inlet seat to admit systempressure to the dome. This closes themain valve. The pilot exhaust is alwayspiped to the main valve outlet.


Main Valve

Dome


Sense Seal

Pilot InletSeat

Pilot OutletSeat


FeedbackPiston


At or Slightly Above Set Pressure Main Valve Partially Open and Modulating





Above Set Pressure With Main Valve Fully Open

Pressure

Do

wn

Fo

rce

on

Mai

n V

alve

Pis

ton

0 Set


Pressure

Mai

n V

alve

Pis

ton

Lif

t

Clo

sing

100% Lift

Ope

ning

Set

Specifications


• Single-point set pressure adjustment.

• Replaceable main valve seat, located on piston to take wear.

• Feedback mechanism in pilot, independent of primary pressure sensing mechanism, to ensure smooth modulation of main valve.



• Lettered orifice valves meet API standard 526 dimension requirements.



The Iso-Dome accessory for the 400 pilotprovides protection of the critical pilotinternals from the process media. The pilot isactuated by the process fluid and is ASMESection VIII Code stamped for gas and liquidservice. The Iso-Dome pilots are availablewith effective orifices areas of 0.110 through63.50 inch2 [0.710 through 409.7 cm2 ],valve inlet sizes 1-inch through 10-inch [25 through 254 mm], set pressure between15 and 2220 psig [1.03 and 153 barg], andcontinuous service temperature from -65°F to +500°F [-54°C to +260°C].


• Critical Pilot Internals and MainValve Dome Protected from ProcessMedia. Expands the application of pilotoperated valve technology.

• Valve is Fail-safe. Meets ASME coderequirements.

• Allows System Operating Pressureto be Near Set Pressure. SRVtightness is maintained, resulting ingreater system throughput.

• All Adjustments are Factory Sealed.Just add the clean gas supply for simpleand inexpensive field installation.

• Modulating Action. Minimizes fugitiveemissions, product release, product loss,and noise.

• Valve Operation Insensitive to BackPressure. Costly and fragile metalbellows not required.

• Unique Field Test Capability. Setpressure may be verified while valveremains in service protecting the system.No system isolation valve or rupture discrequired.

* Patent Protected

Iso-Dome* Series 400 Valve



Clean Gas Supply

Process Media

Dome

Main Valve Pilot

Piston

PilotVent


Sense Diaphragm

Pilot Spring

Feedback Piston

InletSeat

OutletSeatRegulator

(Supplied by Anderson Greenwood,Mounted on PRV)

Clean Gas Supply (N2, Air, etc.)(Supplied by User)

Iso-Dome* Series 400 Valve

OperationProcess media enters the main valve andis ported to the pilot sense diaphragm.The motive fluid for the pilot and mainvalve is typically nitrogen or air (clean gassupply) and is ported into the seatingareas of the pilot and the main valvedome. This clean gas supply is regulatedto provide pressure into the pilot and mainvalve at slightly below the set pressure ofthe POPRV.

In the closed position, the downward forceon the piston in the main valve providedby the clean gas supply exceeds theupward force on the piston developed bythe process media. At just below set pressure, it is the static pressure of theprocess media that compresses the pilotspring via the sense diaphragm. As theprocess media pressure increases, the

upward movement of the sensediaphragm and feedback piston closes thepilot inlet seat. A small, further increase inprocess media pressure opens the outletseat. The clean gas supply (motive fluid)now exhausts from the main valve domevia the pilot vent. This reduced domepressure acts on the unbalanced feedbackpiston lift, and “locks in” dome pressure.Thus at any stable inlet process mediapressure there will be no pilot flow. Thisconserves the clean gas supply volume toprovide multiple valve cycles if necessary.

As inlet pressure rises above setpressure, further dome pressure reductionwill modulate the main valve pistonproportional to the process media upset.The feedback piston will move, respondingto the process media pressure to exhaustor supply the main valve dome with the

clean motive fluid. This puts the mainvalve piston in the correct position torelieve only that process media needed tosatisfy the overpressure.

As the process media pressure decreasesbelow set pressure, the feedback pistonmoves downward and opens the inlet seatto admit the clean gas supply into themain valve dome. This closes the mainvalve.

The process media porting to the pilotremains a static pressure at all timesduring this opening and closing operation.The internal seating areas of the pilot andthe main valve dome are never exposed tothis process media at any time.




Valves are selected on the basis of theirability to meet an expected relievingcondition, flowing a sufficient amount offluid to prevent excessive pressureincrease. This means that the size of thevalve orifice must be calculated taking the required flow, performance characteristics,lading fluid properties, and other factorsinto consideration.

The sizing procedure presented utilizesthe recommended practice of API 520Part I. The valve orifice areas and nozzledischarge coefficients shown are effectivevalues in that they are not specific to aparticular valve type. The use of theseeffective orifice areas and effectivenozzle discharge coefficients willalways allow for the selection of avalve orifice area that will meet orexceed the required capacity.

The calculation of the actual certifiedvalve capacity can be performed with theAnderson Greenwood sizing program.This program is available for download athttp://sizing.tycovalves.com/

To select the minimum required orificearea that will flow the required capacity ofthe system you wish to protect, pleaserefer to the following information whichappears in this section:

1. Sizing Formulas

2. Correction Factors

3. Valve Orifice Areas

Once you have determined the requiredorifice area for your service conditions, refer to Part 3, Ordering (page 31), to select a specific valve model number.

How to Size a Valve



English Units Metric Units

A =W

A =W

––––––––––– –––––––––––51.5KdP1KSKb 52.5KdP1KSKb

Sizing Formulas

Formula Symbols

Symbol Description English Units Metric Units

A Calculated Orifice Area in2 cm2

V Required Capacity, Gas SCFM Nm3/h

VL Required Capacity, Liquid U.S. gpm m3/h

W Required Capacity, Gas or Steam lb/h kg/h

G Specific Gravity — —

M Molecular Weight (M = 29 x specific gravity) — —

T Relief Temperature, (°R = °F + 460°; °K = °C + 273) °R °K

Z Compressibility Factor (if unknown, assume Z = 1.0) — —

Cpk Ratio of Specific heats (k= ––– ) — —

Cv

C Gas Constant (if unknown, assume C = 315) (page 25) — —

Kd Effective Nozzle Coefficient for 90% of Actual Capacity (page 30) — —

Ks Superheat Correction Factor (pages 28, 29) — —

P Set Pressure psig barg

Valve Inlet Flowing PressureP1 (P1 = P + Allowable Overpressure – Inlet Pressure Loss + Atmospheric Pressure)

psia bara

P2 Valve Outlet Flowing Pressure psia bara

Kb Back Pressure Factor (pages 26, 27) — —

PA

Valve Inlet Flowing Pressurepsig barg

(PA = P + Allowable Overpressure – Inlet Pressure Loss)

PB Valve Outlet Flowing Pressure psig barg

KcCombination correction factor for installations with rupture disc upstream of poprv.

–– __(Kc = 1.0 w/no rupture disk, Kc = 0.9 when no combination factor is known)

Steam Flow Liquid Flow

English Units Metric Units–– ––

A =VL √G

A = VL √G

––––––––––––– ––––––––––––––––––––––– –––––––38Kd√ PA – PB 5.094Kd√ PA – PB

Gas/Vapor Flow

English Units Metric Units

––– –––

A =W √TZ

A = 1.316 W √TZ

––––––––––––– –––––––––––––––– ––CKdP1KbKc √M CKdP1KbKc √M

or

––––– –––––

A =V √MTZ

A =V √MTZ

–––––––––––––– –––––––––––––––6.32 CKdP1KbKc 17.02 CKdP1KbKc



Values of M, k, and C For Representative Gases and Vapors

Gas or Vapor M k CMolecular Specific Gas

Weight Heat Ratio Constant

Acetylene (C2H2) 26 1.26 343

Air 29 1.40 356

Ammonia (NH3) 17 1.31 348

Argon (Ar) 40 1.67 378

Benzene (C6H6) 78 1.12 329

Butadiene (C4H6) 54 1.12 329

Carbon Dioxide (CO2) 44 1.28 345

Carbon Monoxide (CO) 28 1.40 356

Ethane (C2H6) 30 1.19 336

Ethylene (C2H4) 28 1.24 341

Freon 22 86.5 1.18 335

Helium (He) 4 1.66 377

Hexane (C6H14) 86 1.06 322

Hydrogen (H2) 2 1.41 357

Hydrogen Sulphide (H2S) 34 1.32 349

Methane (CH4) 16 1.31 348

Methyl Mercaptan (CH4S) 48.1 1.20 337

n-Butane (C4H10) 58 1.09 326

Natural Gas (SF = 0.60) 17.4 1.27 344

Nitrogen (N2) 28 1.40 356

Oxygen (O2) 32 1.40 356

Pentane (C5H12) 72 1.97 323

Propane (C3H8) 44 1.13 330

Propylene (C3H6) 42 1.15 332

Propylene Oxide (C3H6O) 58.1 1.21 338

Steam 18 1.31 348

Sulphur Dioxide (SO2) 64 1.29 346

VCM (C3H3CI) 62.5 1.18 335

Sizing



Sizing

k C

1.00 315

1.02 318

1.04 320

1.06 322

1.08 324

1.10 327

1.12 329

1.14 331

1.16 333

1.18 335

1.20 337

1.22 339

1.24 341

1.26 343

1.28 345

1.30 347

1.32 349

1.34 351

1.36 352

1.38 354

1.40 356

1.42 358

1.44 359

1.46 361

1.48 363

1.50 364

k C

1.52 366

1.54 368

1.56 369

1.58 371

1.60 372

1.62 374

1.64 376

1.66 377

1.68 379

1.70 380

1.72 382

1.74 383

1.76 384

1.78 386

1.80 387

1.82 388

1.84 390

1.86 391

1.88 392

1.90 394

1.92 395

1.94 397

1.96 398

1.98 399

2.00 400

2.02 401

Gas Constant, C



Back Pressure Correction Factor for Series 200, 400, 500 and 800

Sizing

k = 1.0

k = 1.2

k = 1.6

k = 1.8

k = 2.0

k = 1.4

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Bac

k P

ress

ure

Fac

tor,

Kb

P2 /P1 = Absolute Pressure Ratio at Valve Outlet Connection

1. The curves above will vary from one size ofvalve and orifice combination to the other.The curves shown on this page representthe most conservative back pressure correction factor for all series of valves

(except Series 700) shown in this catalog.The sizing software will utilize the actualback pressure correction factor for the valveselected.

2. When capacity reduction is represented bythe above curves, it is due to obtaining critical pressure or higher at the valve’s nozzle exit for full lift valves or curtain areafor restricted lift valves.

Notes



1. The curves above are the actual correctionvalues for all series 700 configurations.

2. When capacity reduction is represented bythe above curves it is due to obtaining critical pressure or higher at the valve’s nozzle exit.

Sizing

1.0

0.98

0.96

0.94

0.92

0.90

0.88

0.86

0.4 0.45 0.50 0.55 0.60 0.65 0.70

Bac

k P

ress

ure

Fac

tor,

Kb

P2 /P1 = Absolute Pressure Ratio at Valve Outlet Connection

k = 1.0

k = 1.2

k = 1.4

k = 1.6

k = 1.8

k = 2.0

Back Pressure Correction Factor for Series 700

Notes



Steam Super Heat Correction Factor, KsSet Saturated Total Steam Temperature °F [°C]

Pressure Steam 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560psig [barg] Temp. °F [°C] [138] [149] [160] [171] [182] [193] [205] [216] [227] [238] [249] [260] [271] [282] [293]

15 [1.03] 250 [121] 1.00 1.00 1.00 .99 .99 .98 .98 .97 .96 .95 .94 .93 .92 .91 .90

20 [1.38] 259 [126] 1.00 1.00 1.00 .99 .99 .98 .98 .97 .96 .95 .94 .93 .92 .91 .90

40 [2.76] 287 [142] 1.00 1.00 1.00 .99 .99 .98 .97 .96 .95 .94 .93 .92 .91 .90

60 [4.14] 308 [153] 1.00 1.00 .99 .99 .98 .97 .96 .95 .94 .93 .92 .91 .90

80 [5.52] 324 [162] 1.00 1.00 .99 .99 .98 .97 .96 .94 .93 .92 .91 .90

100 [6.90] 338 [170] 1.00 1.00 .99 .98 .97 .96 .95 .94 .93 .92 .91

120 [8.27] 350 [177] 1.00 1.00 .99 .98 .97 .96 .95 .94 .93 .92 .91

140 [9.65] 361 [183] 1.00 1.00 .99 .98 .96 .95 .94 .93 .92 .91

160 [11.0] 371 [188] 1.00 1.00 .99 .98 .97 .95 .94 .93 .92 .91

180 [12.4] 380 [193] 1.00 .99 .98 .97 .96 .95 .93 .92 .91

200 [13.8] 388 [198] 1.00 .99 .99 .97 .96 .95 .93 .92 .91

220 [15.2] 395 [202] 1.00 1.00 .99 .98 .96 .95 .94 .93 .92

240 [16.6] 403 [206] 1.00 .99 .98 .97 .95 .94 .93 .92

260 [17.9] 409 [210] 1.00 .99 .98 .97 .96 .94 .93 .92

280 [19.3] 416 [213] 1.00 1.00 .98 .97 .96 .95 .93 .92

300 [20.7] 422 [217] 1.00 .99 .98 .96 .95 .93 .92

350 [24.1] 436 [225] 1.00 1.00 .99 .96 .96 .94 .93

400 [27.6] 448 [231] 1.00 .99 .96 .96 .95 .93

450 [31.0] 460 [238] 1.00 .96 .96 .96 .94

500 [34.5] 470 [243] 1.00 .96 .96 .96 .94

550 [37.9] 480 [249] .97 .97 .97 .95

600 [41.4] 489 [254] .97 .97 .97 .97

650 [44.8] 497 [258] 1.00 .99 .97

700 [48.3] 506 [263] 1.00 .99 .97

750 [51.7] 513 [267] 1.00 1.00 .98

800 [55.2] 520 [271] 1.00 .99

850 [58.6] 527 [275] 1.00 .99

900 [62.1] 533 [278] 1.00 1.00

950 [65.5] 540 [282] 1.00

1000 [69.0] 546 [286] 1.00

1050 [72.4] 552 [289] 1.00

1100 [75.9] 558 [292]

1150 [79.3] 563 [295]

1200 [82.7] 569 [298]

Sizing



Sizing

Steam Super Heat Correction Factor, KsSet Saturated Total Steam Temperature °F [°C]

Pressure Steam 580 600 620 640 660 680 700 720 740 760 780 800 900 1000 1100 psig [barg] Temp.°F [°C] [305] [316] [326] [338] [349] [360] [371] [382] [393] [405] [416] [427] [482] [537] [593]

15 [1.03] 250 [121] .89 .88 .87 .86 .86 .85 .84 .83 .83 .82 .81 .81 .78 .75 .72

20 [1.38] 259 [126] .89 .88 .87 .86 .86 .85 .84 .83 .83 .82 .81 .81 .78 .75 .72

40 [2.40] 287 [142] .89 .88 .87 .87 .86 .85 .84 .84 .83 .82 .82 .81 .78 .75 .72

60 [4.14] 308 [153] .89 .88 .87 .87 .86 .85 .84 .84 .83 .82 .82 .81 .78 .75 .72

80 [5.52] 324 [162] .89 .89 .88 .87 .86 .85 .84 .84 .83 .82 .82 .81 .78 .75 .72

100 [6.90] 338 [170] .90 .89 .88 .87 .86 .85 .85 .84 .83 .82 .82 .81 .78 .75 .72

120 [8.27] 350 [177] .90 .89 .88 .87 .86 .85 .85 .84 .83 .82 .82 .81 .78 .75 .72

140 [9.65] 361 [183] .90 .89 .88 .87 .86 .85 .85 .84 .83 .82 .82 .81 .78 .75 .72

160 [11.0] 371 [188] .90 .89 .88 .87 .86 .86 .85 .84 .83 .82 .82 .81 .78 .75 .72

180 [12.4] 380 [193] .90 .89 .88 .87 .86 .86 .85 .84 .83 .82 .82 .81 .78 .75 .72

200 [13.8] 388 [198] .90 .89 .88 .87 .86 .86 .85 .84 .83 .83 .82 .81 .78 .75 .72

220 [15.2] 395 [201] .91 .90 .89 .88 .87 .86 .85 .84 .8 .83 .82 .81 .78 .75 .72

240 [16.6] 403 [206] .91 .90 .89 .88 .87 .86 .85 .84 .84 .83 .82 .81 .78 .75 .72

260 [17.9] 409 [209] .91 .90 .89 .88 .87 .86 .85 .85 .84 .83 .82 .81 .78 .75 .72

280 [19.3] 416 [213] .91 .90 .91 .88 .87 .86 .85 .85 .84 .83 .82 .82 .78 .75 .72

300 [20.7] 422 [217] .91 .90 .89 .88 .87 .86 .86 .85 .84 .83 .82 .82 .78 .75 .72

350 [24.1] 436 [224] .92 .91 .90 .89 .88 .87 .86 .85 .84 .83 .83 .82 .78 .76 .72

400 [27.6] 448 [231] .92 .91 .90 .89 .88 .87 .86 .85 .84 .84 .83 .82 .79 .76 .72

450 [31.0] 460 [238] .93 .92 .91 .89 .88 .87 .86 .86 .85 .84 .83 .82 .79 .76 .72

500 [34.5] 470 [243] .93 .92 .91 .90 .89 .88 .87 .86 .85 .84 .83 .82 .79 .76 .73

550 [37.9] 480 [249] .94 .92 .91 .90 .89 .88 .87 .86 .85 .84 .83 .82 .79 .76 .73

600 [41.4] 489 [254] .94 .93 .92 .90 .89 .88 .87 .86 .85 .84 .84 .83 .79 .76 .73

650 [44.8] 497 [258] .95 .94 .92 .91 .90 .89 .87 .86 .86 .85 .84 .83 .79 .76 .73

700 [48.3] 506 [263] .96 .94 .93 .91 .90 .89 .88 .87 .86 .85 .84 .83 .79 .76 .73

750 [51.7] 513 [267] .96 .95 .93 .92 .90 .89 .88 .87 .86 .85 .84 .83 .79 .76 .73

800 [55.2] 520 [271] .97 .95 .94 .92 .91 .90 .88 .87 .86 .85 .84 .84 .80 .76 .73

850 [58.6] 527 [275] .98 .96 .94 .93 .92 .90 .89 .88 .87 .86 .85 .84 .80 .76 .73

900 [62.1] 533 [278] .99 .97 .95 .93 .92 .90 .89 .88 .87 .86 .85 .84 .80 .77 .73

950 [65.5] 540 [282] .99 .97 .95 .94 .92 .91 .89 .88 .87 .86 .85 .84 .80 .77 .73

1000 [69.0] 546 [286] .99 .98 .96 .94 .93 .91 .90 .89 .87 .86 .85 .84 .80 .77 .73

1050 [72.4] 552 [289] 1.00 .99 .97 .95 .93 .92 .90 .89 .88 .87 .86 .85 .80 .77 .73

1100 [75.9] 558 [292] 1.00 .99 .98 .95 .94 .92 .91 .89 .88 .87 .86 .85 .81 .77 .73

1150 [79.3] 563 [295] 1.00 .99 .98 .96 .94 .92 .91 .90 .88 .87 .86 .85 .81 .77 .73

1200 [82.7] 569 [298] 1.00 .99 .98 .97 .95 .93 .91 .90 .89 .87 .86 .85 .81 .77 .73



Sizing

Effective API Orifice Area, in2 [cm2]

Valve Size Types 253, 453, 853 Types 243, 443, 843 Types 2632, 4632, 8632 Type 727in [mm] Type 259 Type 249 Type 2692

Type 5461 Type 5661, 2

1 x 2 0.110 (‘D’) [0.710][25 x 50]

0.307 (‘F’) [1.981] — —11/2 x 2 0.196 (‘E’) [1.265][40 x 50]

11/2 x 2[40 x 50]

0.503 (‘G’) [3.245]3 0.785 (‘H’) [5.065]3 1.320 [8.516] —

11/2 x 30.503 (‘G’) [3.245] 0.785 (‘H’) [5.065] — —

[40 x 80]

0.503 (‘G’) [3.245]2 x 3 0.503 (‘G’) [3.245]

1.287 (‘J’) [8.303] 2.554 [16.47] 0.785 (‘H’) [5.065][50 x 80] 0.785 (‘H’) [5.065]

1.287 (‘J’) [8.303]

2 x Dual 3–– –– 2.554 [16.47] ––

[50 x Dual 80]

1.287 (‘J’) [8.30] 3 x 4 1.287 (‘J’) [8.303]

2.853 (‘L’) [18.41] 5.938 [38.31] 1.838 (‘K’) [11.86][80 x 100] 1.838 (‘K’) [11.86]

2.853 (‘L’) [18.41]

3 x Dual 4–– –– 5.938 [38.31] ––

[80 x Dual 100]

2.853 (‘L’) [18.41]4 x 6

2.853 (‘L’) [18.41]3.600 (‘M’) [23.23]

[100 x 150] 3.600 (‘M’) [23.23] 6.380 (‘P’) [41.16] 9.489 [61.21]

4.340 (‘N’) [28.00]4.340 (‘N’) [28.00]

6.380 (‘P’) [41.16]

4 x Dual 6–– –– 9.489 [61.21] ––

[100 x Dual 150]

11.05 (‘Q’) [71.29]6 x 8

11.05 (‘Q’) [71.29] 16.00 (‘R’) [103.2] 20.57 [137.7] 16.00 (‘R’) [103.23][150 x 200]

18.58 (‘RR’) [119.8]4

6 x Dual 8[150 x Dual 200]

— — 20.57 [137.7] —

8 x Dual 8[200 x Dual 200]

— — 28.36 [182.9] —

8 x 10[200 x 250]

— 26.00 (‘T’) [167.7] 38.96 [251.3] 26.00 (‘T’) [167.74]

8 x Dual 10[200 x Dual 250]

— — 38.96 [251.3] —

10 x 145

[250 x 355] — — 63.50 [409.7] —

Notes

1. Not available in 1” x 2” or 11/2” x 2” sizes.2. There are no recognized API ‘full-bore’ orifice areas.

These effective areas are specific to Anderson Greenwood.3. Threaded body only.4. Series 700 is available in a non-standard RR orifice

18.580 in2 [119.871 cm2].5. Certified for gas or steam service only.

Effective Nozzle Coefficient of Dischargefor 90% of Actual Capacity

Service Kd

Gas 0.975

Liquid 0.650

Steam 0.975



Once you have determined the basic type(e.g., Series 200, 400, etc.) of valverequired in Part 1 and determined yourrequired orifice area in Part 2, please referto the following information to specify andorder the pressure relief valve best suitedfor your application.

Note: To ensure proper delivery and expedite processing, please include the model number and any additionalinformation requested below in allspecifications, purchase requisitions, andorders, as applicable.

Constructing a Model NumberTo construct the model number, identifythe seven components on the Valve ModelNumbering chart on page 53. Use theresulting assembled number whenordering your valve.

Specifying Other Information for Your OrderThe following information might berequired, depending on the type of valveand other requirements:

Special RequirementsPlease specify the details of any specialprocedures you require during valvemanufacturing.

These might include unlisted accessories,special quality assurance, materialtraceability, non-standard plating andsurface finishes, non-destructive testrequirements, etc. Include required levelsof inspection and the parties ororganizations who will perform theinspections, if any. Note: Specialrequirements can impact price anddelivery.

Valve TaggingIf paper tags are requested at the time thevalve is ordered, they will be furnished atno additional cost. Other types of taggingare offered at additional cost. If you wouldlike metallic tags, please identify thespecific tag material, and tag numberswhen you place your order.

DocumentationData submittals are not furnished forordered products unless specified. Certainstandard drawings, test reports, andcertifications are available at no cost,upon request.

Packing for ShipmentAll products are packed for normaldomestic shipment from point of assemblyor stocking. Special packagingrequirements, such as export boxing,should be specified in your purchaseorder.

Ordering InformationTo properly process your order and avoiddelay, please specify the following:

• Quantity

• Inlet Size and Flange Rating andFacing (see page 44)

• Outlet Size and Flange Rating andFacing (see page 64)

• Anderson Greenwood Type ModelNumber (see page 53)

• Orifice Size (see page 30)

• Material Requirements (see pages 32 - 43)

– Main Valve Body– Main Valve Trim– Pilot

• Soft Goods (see page 44 - 51)

• Set Pressure

• Allowable Overpressure

• Service (Gas, Vapor, Liquid, Steam)

• Temperature (Operating and Relief)

• Operating Pressure

• Back Pressure (ConstantSuperimposed, Variable Superimposedand Built-up)

• Required Relief Capacity

• Molecular Weight (Gas) or SpecificGravity (Liquid)

• Ratio of Specific Heats (Gas)

• Optional Accessories (see pages 54 - 58)– Field Test Connection– Field Test Indicator– Manifold Dual Pilot– Backflow Preventer– Pilot Supply Filter– Pressure Spike Snubber– Remote Pressure Sense Connection– Remote Valve Lift Indicator– Manual Unloader– Pilot Lift Lever– Remote Unloader– NACE Option

How to Order a Valve



Series 200/400/500/800 - Standard Main Valve

Materials of Construction

Item Description /S1 /S1/NACE /S /S/NACE-20°F to +1000°F1 -20°F to +1000°F1 -450°F to +1500°F1 -450°F to +1500°F1

[-29°C to +537°C1] [-29°C to +537°C1] [-268°C to +816°C1] [-268°C to +816°C1]

1 Body SA216-WCB/WCC CS SA216-WCB/WCC CS SA351-CF8M SS SA351-CF8M SS

2 Cap SA516-70 SA516-70 SA240-316 SA240-316

3 Cap Bolting A449/A325 CS A449/A325 CS A193-B8M SS A193-B8M SS

A479-316 or A479-316 or A479-316 or A479-316 or4 Nozzle

A351-CF8M SS A351-CF8M SS A351-CF8M SS A351-CF8M SS

5 PistonA564-630 (17-4 PH), A564-630 (17-4 PH), A564-630 (17-4 PH), A564-630 (17-4 PH),A479-316 or A351-CF8M SS A479-316 or A351-CF8M SS A479-316 or A351-CF8M SS A479-316 orA351-CF8M SS

A479-316 or A479-316 or A479-316 or A479-316 or6 Liner

A351-CF8M A351-CF8M A351-CF8M SS A351-CF8M SS

7 Dipper Tube 17-4 PH SS 17-4 PH SS 17-4 PH SS 17-4 PH SS

8 Dome Spring 316 SS Not Used 316 SS Not Used

9 Tube Fittings CS2 316 SS 316 SS 316 SS

10 Seat see page 44 see page 44 see page 44 see page 44

11 Piston Seal see page 44 see page 44 see page 44 see page 44

Nozzle A747-CB7CU-1 SS or A747-CB7CU-1 SS or A747-CB7CU-1 SS or A747-CB7CU-1 SS or12

Retainer 17-4 PH SS 17-4 PH SS 17-4 PH SS 17-4 PH SS

13 Seat Retainer A479-316 SS A479-316 SS A479-316 SS A479-316 SS

14 Seat Retainer Screw 316 SS 17-4 PH SS 316 SS 17-4 PH SS

15 Nozzle Seal4 Filled Teflon® Filled Teflon® Filled Teflon® Filled Teflon®

16 Liner Seal see page 44 see page 44 see page 44 see page 44

17 Lift Adj. Bolt3 A193-B8M SS A193-B8M SS A193-B8M SS A193-B8M SS

18 Lock Pin3 302 SS 302 SS 302 SS 302 SS

19 Tubing 304 SS 316 SS 316 SS 316 SS

3

7

9

2

8

6

13

4

9

10

12

11

5

14

1

1915

16 1719

18

Notes

1. Maximum temperature relates to fire caseconditions. Continuous service temperatureis limited by the choice of seat and seal materials.

2. SS 316 ferrules.

3. Not required in 6” and larger Series 40/50valve sizes or in 4” and larger Series 60valve sizes.

4. Fluorosint 500 for temperatures below -65°F[-54°C] or above 400°F [204°C]. Standardfor Types 249/259/269.



9

21

14 1522

10

5

1

813

7

6

18

16

17

2

20

4 11 12 19

3


Item Description /S /S1 /S2 /S3Ambient to 1000°F Ambient to 600°F 601°F to 800°F 801°F to 1000°F[Ambient to 538°C] [Ambient to 316°C] [318°C to 427°C] [427°C to 538°C]

1 Body SA351-CF8M SS SA216-WCB CS SA216-WCB CS SA217-WC6 AS

2 Cap SA240-316 SA516-70 SA516-70 SA387-11

3 Nozzle A351-CF8M SS A351-CF8M SS A351-CF8M SS A351-CF8M SS

4 Piston Assembly A217CA-151 A217CA-151 A217CA-151 A217CA-151

5 Liner A479-410 A479-410 A479-410 A479-410

6 Stud A193-B7 A193-B7 A193-B7 A193-B7

7 Nut A194-2H A194-2H A194-2H A194-2H

8 Piston Damper A479-410 A479-410 A479-410 A479-410

9 Retainer Screw A574 A574 A574 A574

10 Dome Spring Inconel® Inconel® Inconel® Inconel®

11Damper Ring with

Ductile Iron Ductile Iron Ductile Iron Ductile IronCentralizer Spring

Piston Seal Ring with12

Centralizer Spring Ductile Iron Ductile Iron Ductile Iron Ductile Iron

13 Liner Seal GRAFOIL® GRAFOIL® GRAFOIL® GRAFOIL®

14 Seal Extrusion Ring 1018 STL 1018 STL 1018 STL 1018

15 Nozzle Seal Thermabraid SS Thermabraid SS Thermabraid SS Thermabraid SS

16 Drain Spring 316 SS 316 SS 316 SS 316 SS

17 Drain Plunger 17-4 SS 17-4 SS 17-4 SS 17-4 SS

18 Pipe Plug, Hex HD 316 SS 316 SS 316 SS 316 SS

19 Filter Assembly 316 SS 316 SS 316 SS 316 SS

20 Pitot Tube Seal GRAFOIL® GRAFOIL® GRAFOIL® GRAFOIL®

21 Belleville Washer 17-7 SS 17-7 SS 17-7 SS 17-7 SS

22 Disc 718 Nickel Alloy 17-4 SS or 718 Nickel Alloy 718 Nickel Alloy 718 Nickel Alloy

Notes

1. Inconel® is a registered trademark ofSpecial Metals Corporation.

2. GRAFOIL® is a registered trademark ofUCAR Carbon.

Series 700 - Standard Main Valve



Series 200 Pilot

11

7

8

1

19

532

20

29

24

26Supply

27

22

25

15

14

13

12

9

10

9

6

4

Dome

17

18

28

23

21

16



Series 200 Pilot


Item Description /S1, /S, /S1/NACE, /S/NACE

1 Body A479-316 SS

2 Nozzle Seal PCTFE

3 Nozzle A479 316 SS

4 Seat See Soft Goods (page 44)2

5 Seat Retainer (upper) A479 316 SS

6 Spindle A479 316 SS/CR PL

7 Guide A479 316 SS

8 Bonnet Seal See Soft Goods (page 44)2

9 Spring Washer A479 316 SS

10 Spring 316 SS1

11 Bonnet A479 316 SS

12 Jam Nut 316 SS

13 Set Pressure Adjustment Screw A276 316 SS

14 Cap A479 316 SS

15 Blowdown Adjustment Screw A479 316 SS

16 Blowdown Adjustment Seal See Soft Goods (page 44)2

17 Seat Retainer (lower) A276 316 SS

18 Piston Seal See Soft Goods (page 44)2

19 Spacer A276 316 SS

20 Reseat Seat A479 316 SS

21 Bushing Seal See Soft Goods (page 44)2

22 Reseat Adjustment Bushing A479 316 SS

23 Spacer Washer 316 SS

24 Blowdown Seal Teflon® TFE

25 Jam Nut 316 SS

26 Inlet Screen 316 SS

27 Reseat Piston A276 316 SS

28 Pipe Plug A479 316 SS

29 Vent Zytel®/316 SS

Notes

1. For NACE trim, item 10 is Inconel®.

2. Viton® standard for NACE service.

3. Viton® is a registered trademark of DuPont Dow Elastomers.

4. Zytel® is a registered trademark of the E.I. duPont de Nemours Company.



Series 400 Pilot (Gas Service)

16

17

1815

19

6

13

12

4and42

14

41

23

7

27

11

28

5

1 29 2 30 31

13

39

38

10

20and21

40

26

3522

24

25

3

8

Dome

34

33

32

9

4543

44

9

3 26

39

12

100 - 1480 psig[6.90 - 102 barg]

15 - 99 psig[1.03 - 6.82 barg]



1 Body A479-316 SS A479-316 SS

2 Body Plug A479-316 SS A479-316 SS

3 Feedback Piston A479-316 SS A479-316 SS

See Soft Goods 4 Sense Diaphragm

(page 44)Viton®

5 Inlet Nozzle A479-316 SS A479-316 SS

6 Spring 17-7 SS1 17-7 SS1,4

7 Inlet SeatSee Soft Goods (page 44)

Viton®

8 Spool Spring 302 SS Elgiloy

9 Piston Nut 316 SS 316 SS

10 Sense Washer A479-316 SS 316 SS

11 Bias Spring 316 SS Elgiloy

See Soft Goods12 Upper Piston Seal

(page 44)Viton®

13 Spring Washer A479-316 SS A479-316 SS

14 Diaphragm Case A479-316 SS A479-316 SS

15 Spring Bonnet A351-CF8M SS A351-CF8M SS

16 Adjustment Screw A276-316 SS A276-316 SS

17 Jam Nut A479-316 SS A479-316 SS

18 Cap A479-316 SS5 A479-316 SS5

19 Bonnet Vent Zytel® Zytel®

20 Case Bolt A193-B8M SS2 A193-B8M SS2

21 Body Bolt A193-B8M SS2 A193-B8M SS2

Case/Diaphragm See Soft Goods 22

Seal (page 44)Viton®

23 Bushing A26-316 SS A276-316 SS

24 Piston Sleeve A479-316 SS A479-316 SS

See Soft Goods 25 Sleeve/Case Seal

(page 44)Viton®

Notes

1. 316 SS for set pressure range 15 – 65 psig [1.03 – 4.48 barg].

2. 302 SS for set pressure range 501–1480 psig [34.5 – 102.1 barg].

3. Viton® is a registered trademark of the E.I. duPont de NemoursCompany.

4. Inconel® optional.

5. A582-303 SS for cap with lift lever option.

See Soft Goods 26 Lower Piston Seal

(page 44)Viton®

See Soft Goods27 Inlet Nozzle Seal

(page 44)Viton®

A564-630 A564-630 28 Outlet Nozzle

(17-4PH) SS (17-4PH) SS

Upper Outlet See Soft Goods 29

Nozzle Seal (page 44)Viton®

See Soft Goods 30 Body Plug Seal

(page 44) Viton®

See Soft Goods 31 Spool Seal

(page 44)Viton®

Lower Outlet See Soft Goods 32

Nozzle Seal (page 44)Viton®

See Soft Goods33 Outlet Seat

(page 44)Viton®

34 Spool A479-316 SS A479-316 SS

Diaphragm35

Retainer WasherA479-316 SS A479-316 SS

38 Sense Plate A479-316 SS A479-316 SS

39 Lock Washer A479-316 SS A479-316 SS

See Soft Goods 40 Diaphragm Seal

(page 44)Viton®

See Soft Goods 41 Body/Case Seal

(page 44)Viton®

42 Diaphragm Shield Teflon®-FEP Teflon®-FEP

43 Sense Piston A479-316 SS A479-316 SS

See Soft Goods 44 Piston Sense Seal

(page 44)Viton®

45 Bonnet Insert (17-4PH) SS (17-4PH) SS

Series 400 Pilot


Item Description /S1, /S /S1/NACE, /S/NACE Item Description /S1, /S /S1/NACE, /S/NACE



Series 500 Pilot

12

24

13

31

30

17

18

25

14

35and 32

16

6

35and 32

9

26

21

4

28

2

1

23

10

11

3

19

7

34

22

5

29and33

8

27

15

20

36

7

8

9

275 - 720 psig[19.0 - 51.0 barg]



Series 500 Pilot


Item Description /S1, /S, /S1/NACE, /S/NACE

1 Body A351 GR. CF8M

2 Nozzle A479-316 SS

3 Spindle A276-316 SS

4 Socket/Seat A479-316 SS

5 Diaphragm Support Plate A479-316 SS

6 Spacer Ring A479-316 SS

7 Sense Plate A479-316 SS

8 Boost Plate A479-316 SS

9 Diaphragm Shield A240-304 SS

10 Bonnet A351-CF8M SS

11 Spring Washer A479-316 SS

12 Pressure Adjustment Screw A276-316 SS

13 Bonnet Insert SA564-670 (17-4) SS

14 Bonnet Seal BUNA-N

15 Spindle Seal Teflon®-TFE1

16 Plate Boost Seal Teflon®-TFE

17 Spring 316 SS2

18 Bonnet Vent Aluminum

19 Lock Washer3 316 SS

20 Shim Washer 18-8 SS4

21 Retainer Screw 18-8 SS5

22 Bolt 17-4 SS PH

23 Cap 316 SS11

24 Jam Nut A479-316 SS

25 Jam Nut 18-8 SS

26 Seal Retainer A479-316 SS

27 Seat PEEK

28 Ball 316 SS6

29 Diaphragm Teflon®-FEP Type L7

30 Nameplate A240-304 SS

31 Drive Screw 304 SS

32 Gasket3 Teflon®-TFE

33 Diaphragm Hastelloy®8

34 Spindle Gasket Teflon®-FEP

35 Gasket PEEK9

36 Upper Diaphragm Shield A240-304 SS

Notes

1. Carbon filled Teflon®-TFE seal Hastelloy®

spring loaded.

2. 316 SS used 60 psig [4.14 barg] and below, 17-7 SS used 61 – 720 psig [4.21 -49.6barg].

3. Used 180 psig [12.4 barg] and below.

4. 316 SS Annealed for NACE.

5. Monel® for NACE

6. Hastelloy® C for NACE.

7. Upper and lower diaphragm, 15 – 30 psig[1.03 – 2.07 barg], lower diaphragm only, 31 – 120 psig [2.14 – 8.27 barg].

8. Upper diaphragm only 31 – 120 psig [2.14– 8.27 barg], upper and lower diaphragm,121 – 720 psig [8.34 – 49.6 barg].

9. Used above 180 psig [12.4 barg].

10. Hastelloy® is a registered trademark ofHaynes International.

11. 303 SS cap used on bonnets with lift leversand/or gag.



35

27

34

33

Optional Features

Threaded Cap

Threaded Cap and Gag

Lift Lever and Gag

3

5

6

4

7

4

31

8

14

38

36

37

9

11

13

Dome

24

1

16

21

20

25

2

26

29

32

27

30

28

27

23

10

1215

22

17

19

18

To Supply

Series 700 Pilot



Note1. MP35N® Alloy is a registered trademark of

SPS Technologies, Inc.

Series 700 Pilot


Item Description /S1, /S2, /S3, /S

1 Body SS A479-316

2 Lift Lever Bonnet SS A479-316

3 Cap SS A479-316

4 Spring Washer SS A479-316

5 Adjusting Screw SS A479-316

6 Hex Jam Nut SS 316

7 Spring Inconel® X750

8 Spindle SS 17-4

9 Disc SS 17-4

10 Nozzle SS 17-4

11 Nozzle Seal GRAFOIL®/SST

12 Reseat Seat SS 17-4

13 Spacer SS 17-4

14 Cage Guide SS A479-316

15 Reseat Piston SS 17-4

16 Reseat Bushing SS A479-316

17 Thread Seal GRAFOIL®

18 Blowdown Adjustment Nut SS A479-316

19 Blowdown Adjustment Packing GRAFOIL®

20 Safety Lock Screw SS 18-8

21 Blowdown Adjustment Screw SS A479-316

22 1/2 NPT Pipe Plug SS A479-316

23 Vent Aluminum

24 Shim SS 316

25 Lever SS 316

26 Torsion Spring SS 316

27 O-ring Teflon®

28 Lock Washer SS 18-8

29 Roll Pin SS 420

30 1/4-28 x 1/4 Bolt SS 18-8

31 Cam SS 316

32 Gland Nut SS A479-316

33 Gag Rod SS 300 or 4130 Alloy Steel

34 Gag Rod Lever SS 18-8

35 Bolt SS A193-B8M

36 Ball SS 440C

37 Disc Spring Washer MP35N® Alloy

38 Bonnet Spring Washer SS 17-4



18

20

21

14

22

24

15

10

29

31

4

27

28

1

17

16

5

19

19

13

11

23

12

6

9

25

8

30

26

3

7

2

Series 800 Pilot



Series 800 Pilot


Item Description /S1, /S /S1/NACE, /S/NACE

1 Body A564-630 H1150 17-4 SS A564-630 H1150 17-4 SS

2 Inlet Bushing A564-630 H1150 17-4 SS A564-630 H1150 17-4 SS

3 Outlet Nozzle A564-630 H1150 17-4 SS A564-630 H1150 17-4 SS

4 Inlet Nozzle A564-630 H1150 17-4 SS A564-630 H1150 17-4 SS

5 Bonnet A351-CF8M SS A351-CF8M SS

6 Bonnet Lock Bolt 316 SS 316 SS

7 Inner Spool A564-630 H1150 17-4 SS A564-630 H1150 17-4 SS

8 Outer Spool A564-630 H1150 17-4 SS A564-630 H1150 17-4 SS

9 Spool Nut A564-630 H1150 17-4 SS A564-630 H1150 17-4 SS

10 Feedback Piston A564-630 H1150 17-4 SS A564-630 H1150 17-4 SS

11 Sense Piston A564-630 H1150 17-4 SS A564-630 H1150 17-4 SS

12 Feedback Spacer A269-316 SS A269-316 SS

13 Lock Washer 316 SS 316 SS

14 Hex Nut A194-8M SS A194-8M SS

15 Spool Spring Inconel® X-750 Inconel® X-750

16 Lock Nut A479-316 SS A479-316 SS

17 Screen Assembly 316 SS 316 SS

18 Cap A582-303 SS A582-303 SS

19 Spring Washer A479-316 SS A479-316 SS

20 Pressure Set Screw A564-630 H1150 17-4 SS A564-630 H1150 17-4 SS

21 Set Spring 316 SS 316 SS

22 Piston Seal Backup Ring See Soft Goods (page 44) Viton®

23 Sense Seal See Soft Goods (page 44) Viton®

24 Feedback Seal See Soft Goods (page 44) Viton®

25 Inlet Seat See Soft Goods (page 44) Viton®

26 Outlet Nozzle Seal See Soft Goods (page 44) Viton®

27 Spool Seal See Soft Goods (page 44) Viton®

28 Inlet Bushing Seal See Soft Goods (page 44) Viton®

29 Inlet Nozzle Seal See Soft Goods (page 44) Viton®

30 Outlet Seat See Soft Goods (page 44) Viton®

31 Inner Spool Seal See Soft Goods (page 44) Viton®

All valves, excluding the Series 700require the use of soft goods for theirseats and seals. To assist in selecting anacceptable soft goods please note thefollowing instructions:

1. Choose the main valve seat materialbased upon set pressure andrelieving temperature (non-fire case)or operating temperature (fire case)from pages 45 - 50.

2. Choose the main valve seal basedupon relieving temperature (non-firecase) or operating temperature (firecase) from page 51.

3. Choose the pilot valve seat and sealbased upon set pressure andrelieving temperature (non-fire case)or operating temperature (fire case)from page 51.

4. The final soft goods selected shouldbe chemically compatible with thelading fluid.



Inlet Flange Ratings

Maximum Pressure Rating, psig [barg]

Flange Material1 Temperature, °F [°C]Class -423 to -21 -20 to 100 200 300 400 500 600 700 800

[-253 to -30] [-29 to 38] [93] [149] [205] [260] [316] [371] [427]

CS — 285 [19.7] 260 [17.9] 230 [15.9] 200 [13.8] 170 [11.7] 140 [9.66] 110 [7.59] 80 [5.52]150#

SS 275 [19.0] 275 [19.0] 240 [16.6] 215 [14.8] 195 [13.5] 170 [11.7] 140 [9.66] 110 [7.59] 80 [5.52]

CS — 740 [51.0] 675 [46.6] 655 [45.2] 635 [43.8] 600 [41.4] 550 [37.9] 535 [36.9] 410 [28.3]300#

SS 720 [49.6] 720 [49.7] 620 [42.8] 560 [38.6] 515 [35.5] 480 [33.1] 450 [31.0] 430 [29.7] 415 [28.6]

CS — 1480 [102.1] 1350 [93.1] 1315 [90.7] 1270 [87.6] 1200 [82.8] 1095 [75.5] 1065 [73.4] 825 [56.9]600#

SS 1440 [99.3] 1440 [99.3] 1240 [85.5] 1120 [77.2] 1030 [71.0] 955 [65.9] 905 [62.4] 865 [59.7] 830 [57.2]

CS — 2220 [153.1] 2025 [139.6] 1970 [135.8] 1900 [131.0] 1795 [123.8] 1640 [113.1] 1600 [110.3] 1235 [85.2]900#

SS 2160 [149.0] 2160 [149.0] 1860 [128.3] 1680 [115.8] 1540 [106.2] 1435 [99.0] 1355 [93.5] 1275 [87.9] 1245 [85.9]

CS — 3705 [255.5] 3375 [232.7] 3280 [226.2] 3170 [218.6] 2995 [206.6] — — —1500#

SS 3600 [248.2] 3600 [248.2] 3095 [213.4] 2795 [192.7] 2570 [177.2] 2390 [164.8] — — —

CS — 6170 [425.4] 5625 [387.8] 5470 [377.2] 5280 [364.1] 4990 [344.1] — — —2500#

SS 6000 [413.7] 6000 [413.8] 5160 [355.8] 4660 [321.3] 4280 [295.1] 3980 [274.5] — — —

1. CS: SA216, Grade WCB.SS: SA351, Grade CF8M.

2. Ratings at temperatures at and above -20°F [-29°C] per ANSI B16.34.

Notes

Recommended Soft Good’s Limits



Main Valve Seat – Types 243/253, 443/453, 843/853,249/2591

Orifice Main Valve

D, E, F1 x 21.5 x 2

1.5 x 2G, H

1.5 x 3

1. Select Teflon® or filled Teflon® seat only.

2. Urethane seat not available with Series 800pilot.

3. Available seat materials are dependentupon pilot series selected

Pilot Minimum Set Maximum Setpsig [barg]

200 25 [1.72] 6170 [425]400 15 [1.03] 1480 [102]800 1481 [102] 6170 [425]

Notes

Ethy

lene

Prop

ylen

e

BUNA

-N

Vito

n

Teflo

n

SS F

illed

Teflo

n

PEEK

Vesp

elUret

hane

2

500[260]

400[204]

325 [162]

300 [148]

275[135]

-20[-28]

-65[-53]

-85[-65]

-423[-252]

15 600 1480 3705 6170[1.03] [41.3] [102] [255] [425]

Tem

per

atu

re, °

F [°C

]

515[268]



Main Valve Seat – Types 243/253/263, 443/453/463,843/853/863, 249/259/269

Ethy

lene

Prop

ylen

e

BUNA

-N

Vito

n

Teflo

n

SS F

illed

Teflo

n

PEEK

Vesp

el

Uret

hane

2

500[260]

400[204]

325 [162]

300 [148]

275[135]

-20[-28]

-65[-53]

-85[-65]

-423[-252]

15 400 1480 3705 6170[1.03] [27.6] [102] [255] [425]

Tem

per

atu

re, °

F [°C

]

515[268]

Orifice Main Valve

Full Bore 1.5 x 2

G, H, J 2 x 3

Full Bore2 x 32 x 3 x 3

J, K, L 3 x 4

1. Select Teflon® or filled Teflon® only.

2. Urethane seat not available with Series 800 pilot.



200 25 [1.72] 6170 [425]400 15 [1.03] 1480 [102]800 1481 [102] 6170 [425]

Notes



Main Valve Seat – Types 243/253/263, 443/453/463,843/853/863, 249/259/2691

Ethy

lene

Prop

ylen

e

BUNA

-N

Vito

n

Teflo

n

SS F

illed

Teflo

n

PEEK

Vesp

el

Uret

hane

2

500[260]

400[204]

325 [162]

300 [148]

275[135]

-20[-28]

-65[-53]

-85[-65]

-423[-252]

15 400 1480 3705[1.03] [27.6] [102] [255]

Tem

per

atu

re, °

F [°C

]

515[268]

Orifice Main Valve


L, M, N, P 4 x 6





200 25 [1.72] 3705 [255]400 15 [1.03] 1480 [102]800 1481 [102] 3705 [255]

Notes



Main Valve Seat – Types 263, 463, 863, 2691

Ethy

lene

Prop

ylen

e

BUNA

-N

Vito

n

Teflo

n

SS F

illed

Teflo

n

PEEK

Vesp

el

Uret

hane

2

500[260]

400[204]

325 [162]

300 [148]

275[135]

-20[-28]

-65[-53]

-85[-65]

-423[-252]

15 400 1480 2220[1.03] [27.6] [102] [153]

Tem

per

atu

re, °

F [°C

]

515[268]

Orifice Main Valve






200 25 [1.72] 2220 [153]400 15 [1.03] 1480 [102]800 1481 [102] 2220 [153]

Notes



Main Valve Seat – Types 243/253/263, 443/453/463,249/259/2691

Ethy

lene

Prop

ylen

e

BUNA

-N

Vito

n

Teflo

n

SS F

illed

Teflo

n

Uret

hane

2

500[260]

400[204]

325 [162]

300 [148]

275[135]

-20[-28]

-65[-53]

-85[-65]

-423[-252]

15 275 1480[1.03] [18.9] [102]

Set Pressure, psig [barg]

Tem

per

atu

re, °

F [°C

]

Orifice Main Valve

Q, R 6 x 8

Full Bore 6 x 8 or 6 x 8 x 8

Full Bore 8 x 8 x 8

T 8 x 10

Full Bore 8 x 10

1. Select Teflon® or filled Teflon® only. 2. Available seat materials are dependentupon pilot series selected


200 25 [1.72] 1480 [102]400 15 [1.03] 1480 [102]

Notes



Main Valve Seat – Types 243/253/263, 443/453/463,249/259/2691

Ethy

lene

Prop

ylen

e

BUNA

-N

Vito

n

Teflo

n

SS F

illed

Teflo

n

Uret

hane

2

500[260]

400[204]

325 [162]

300 [148]

275[135]

-20[-28]

-65[-53]

-85[-65]

-423[-252]

15 275 740[1.03] [18.9] [51.0]


Tem

per

atu

re, °

F [°C

]

Orifice Main Valve

Full Bore 10 x 14 1. Select Teflon® or filled Teflon® only. 2. Available seat materials are dependentupon pilot series selected


200 25 [1.72] 740 [51.0]400 15 [1.03] 740 [51.0]

Notes



Main Valve Seat – Types 546/566

Teflo

n

515[268]

-65[-53]

15 720[1.03] [49.6]


Tem

per

atu

re, °

F [°C

]

Orifice Main Valve

All All



Main Valve Seals

Valve Type Material Temperature, °F [°C] Pressure, psig [barg]Minimum Maximum Minimum Maximum1

BUNA-N -65 [-53] 275 [135] 25 [1.72] 6170 [425]Viton® -20 [-28] 400 [204] 25 [1.72] 6170 [425]

243/253/263 Ethylene Propylene -65 [-53] 325 [162] 25 [1.72] 6170 [425]Aflas -20 [-28] 500 [260] 25 [1.72] 6170 [425]Kalrez® 0 [-18] 600 [315] 25 [1.72] 6170 [425]

BUNA-N -65 [-53] 275 [135] 15 [1.03] 1480 [102]Viton® -20 [-28] 400 [204] 15 [1.03] 1480 [102]


BUNA-N -65 [-53] 275 [135] 1481 [102] 6170 [425]Viton® -20 [-28] 400 [204] 1481 [102] 6170 [425]

843/853/863 Ethylene Propylene -65 [-53] 325 [162] 1481 [102] 6170 [425]Aflas -20 [-28] 500 [260] 1481 [102] 6170 [425]Kalrez® 0 [-18] 600 [315] 1481 [102] 6170 [425]

546/566 Teflon® -65 [-53] 515 [268] 15 [1.03] 720 [49.6]

249/259/269 Teflon® -423 [-252] 275 [135] 25 [1.72] 1480 [102]

Pilot Valve Seat and Seals

Valve Type Material Temperature, °F [°C] Pressure, psig [barg]Minimum Maximum Minimum Maximum1

BUNA-N -65 [-53] 275 [135] 25 [1.72] 6170 [425]Viton® -40 [-40] 400 [204] 25 [1.72] 6170 [425]


BUNA-N -65 -53] 275 [135] 15 [1.03] 1480 [102]Viton® -40 [-40] 400 [204] 15 [1.03] 1480 [102]


BUNA-N -65 [-53] 275 [135] 1481 [102] 6170 [425]Viton® -40 [-40] 400 [204] 1481 [102] 6170 [425]

843/853/863 Ethylene Propylene -65 [-53] 325 [162] 1481 [102] 6170 [425]Aflas -20 [-28] 500 [260] 1481 [102] 6170 [425]Kalrez® 0 [-18] 600 [315] 1481 [102] 6170 [425]

546/566 PEEK/Teflon® -65 [-53] 515 [268] 15 [1.03] 720 [48.6]

249/259/269 BUNA-N -423 [-252] 275 [135] 25 [1.72] 1480 [102]

Note

1. Maximum pressure is limited by main valve size.



Model Numbering

4 4 3 10 J 23 /S1

Pilot Series

2 – Series 2004 – Series 4005 – Series 5007 – Series 7008 – Series 800

Main Valve Lift1

2 – Full Lift, API Orifice (Type 727 only)4 – Full Lift, API Orifice5 – Restricted, API Orifice6 – Full Lift, Full Bore Orifice

Main Valve Piston Type

3 – Soft Seat/Seals6 – Teflon® Soft Seat/Seals (Types 546, 566 only)7 – Metal Seat/Seals (Type 727 only)9 – Cryogenic Trim Soft Seat/Seals (Types 249, 259, 269 only)

Inlet Flange Rating, ANSI

05 – 150#10 – 300#12 – 600#14 – 900#16 – 1500#18 – 2500#N – FNPT

Orifice Designation

Letter – API Equivalent— – Full Bore (Largest practical orifice area for a given valve inlet size)

Inlet x Outlet, Inches

Main Valve Materials

/S – SS Body and Trim/S1 – CS Body, SS Trim/S2 – CS Body, High-temperature Trim (Series 700 only)/S3 – WC6 Alloy Steel Body, High-temperature Trim (Series 700 only)

/S1/NACE – CS Body and SS Trim Compliance With NACE MR0175 (2002 Edition)S/NACE – SS Body and Trim Compliance With NACE MR0175 (2002 Edition)

/SPL – Special

Note

1. For a full lift valve, the area controlling the valve capacity is the mainvalve nozzle bore. For a restricted lift valve, the area controlling thevalve capacity is the ‘curtain area’ between the main valve nozzleand the bottom of the lifted piston.



In addition to the beneficial featuresavailable through the use of pilot operatedsafety valves, a variety of accessories andoptions are available to provide additionalfunctions. Some simplify the process ofperiodic testing, an important safetyrequirement today. Others assist in thesuccessful operation of the safety valveunder adverse or special applications.

Please refer to the options andaccessories availability table above. Onrequest, other options may be availablefor some models for special situations,such as position indicators, purgeconnections, multiple pilots, differentialpressure sensing, etc.

A. Field Test Connection:• In-service verification of set pressure.

• Simplifies the periodic testing of safetyvalves.

Anderson Greenwood pilot operatedsafety valves may be readily tested forverification of set pressure during normalsystem operation with this option. FieldTest Connection is an option on mostmodels. The customer furnishes apressure source, plus a test gauge andmetering valve for the portable fieldtesting system. When test pressure is

slowly admitted through a metering valve,the pilot and the main valve dome arepressurized, simulating an increasedsystem pressure.

When set pressure is reached (pop action pilots only), the pilot will actuate.This actuation pressure may then becompared with the nameplate value.Depending upon the current systempressure, and the characteristics of thespecific pilot, the main valve may alsobriefly open and close, or partially openand close, providing verification that themain valve piston is free to move.

When the Field Test Connection is usedwith the modulating type pilots, the pilotwill begin cracking at a pressure justbelow the nameplate setting. In order toaccurately establish the set pressure,another accessory, the Field TestIndicator, is recommended.

B. Field Test Indicator:• Simplifies verification of modulating

pilot set pressures.

• Only one test connection and pressuregauge required.

This is a mechanical indicator, availableonly for modulating pilots, allowing for the accurate verification of set pressure.

Accessories and Options

A

B

Options and Accessories Availability Table

Accessory/Option Pilot Series200 400 500 700 800

Field Test Connection O N/A O O N/A

Field Test Connection w/Indicator N/A O O1 N/A O

Backflow Preventer O O O N/A O

Remote Pressure Sense Connection O O O O O

Manual Unloader2 O O O O O

Remote Unloader3 O O O O O

Pilot Supply Filter O O O O O

Pilot Lift Lever O O O O O

Pressure Spike Snubber (Gas) O O N/A S4 O

Pressure Spike Snubber (Liquid) N/A O N/A N/A O

NACE Trim O O O N/A O

Remote Valve Lift Indicator5 O O O O O

Manifolded Dual Pilots N/A N/A N/A O N/A

Manifolded Single Pilot N/A N/A N/A O N/A

Notes

Option Codes:S - Standard

O - Optional: available upon request

N/A - Not available for this model valve.

Materials: Options and accessories will utilizematerials of construction consistent with thoseof the main valve and pilot valve. Consult thefactory representative for specific details.

1. This option is recommended whenever FieldTest Connection is specified.

2. The effective CV of the unloader shall be at least 0.4 (KV = 0.35), including any associated tubing or piping.

3. Furnish full particulars. See option description on page 55.

4. Standard for vapor service.

5. Furnish complete details on type of signaloutput desired and power supply available.



Since the set pressure of all modulatingsafety valves in this catalogue are definedas the point when the dome pressure isreduced to 70 percent of set pressure,when system pressure reaches thenameplate setting, the indicator isactivated. This gives positive verificationthat set pressure has been reached. Theverification process for modulating pilotsrequires this option, in addition to the FieldTest Connection.

C. Manifold Dual Pilot:• In-Service Replacement of Pilot.

• Extended Outage Cycle. The MDP isavailable both as an option and as aretrofit kit. The dual cartridge pilots are manifolded in a miniature safetyselector valve which allows for in-service replacement of the pilot withoutshutting the system down whilemaintaining full system overpressureprotection. Also, field test connectionand manual blowdown are built into themanifold.

D. Backflow Preventer:• Prevents accidental reverse flow

through safety valve.

This option, sometimes called a ‘vacuumblock,’ prevents a pilot operated safetyvalve from reverse flow, when sufficientvacuum is present at the inlet flange. Thebackflow preventer also prevents reverseflow when the pressure at the outlet flange(superimposed back pressure) is greaterthan the current system pressure. Reverseflow will occur with any standard type ordesign of pilot operated safety valve, whensufficient reverse differential pressureexists. Reverse flow, should it be inducedby a reverse differential pressure, will beprevented by this option.

All backflow preventers operate bypermitting the introduction of outletpressure into the dome of the main valve,thereby holding the piston firmly onto thenozzle, overcoming the effect of a reversedifferential pressure across the safetyvalve. The option also includes a built-in

provision to prevent reverse flow throughthe pilot that would otherwise passthrough the pilot supply line, back into thesystem.

A Backflow Preventer should be specifiedwhenever:

• A vacuum may be present at the inletconnection due to unusual operatingconditions or a temporary vacuumcondition that may occur under startupconditions.

• The discharge of the safety valve isconnected to a downstream pressurevessel, where pressure may vary fromtime to time, in excess of the pressurein the upstream system.

• The discharge of multiple safety valvesis combined into a single manifold orvent system, creating superimposedback pressures in excess of the currentupstream system pressure.

E. Pilot Supply Filter:• Protects pilot from excessive

particulate matter in flow stream.

This is a mechanical filter that is availablefor gas and liquid applications where thereis a possibility of large amounts ofparticulate matter in the fluid stream. Thefilter is optional for liquid or gas service forany pilot model. The pilot supply filter willbe rigidly mounted to the main valve cap.


E

C

D



F. Pressure Spike Snubber(Gas Service):

• Overcomes pressure ‘spikes’ in gassystems, that would cause prematureactuation.

This option may be provided on the Series200 or 400 non-flowing type pilots, only ongas applications. The snubber isrecommended for use on pulsating gascompressor applications, whereinstantaneous pressure values (pressurespikes) approach or exceed the setpressure and may cause inadvertent valveactuation. The device acts as a pulsationdampener; consisting of a series of fixedorifices, combined with small volumechambers that dampen the transientpressure rises. The average static systempressure is unaffected, so no change inset pressure is experienced with thisoption. The pressure spike snubber iscompact and is mounted to the main valvecap. Please note that it is to be appliedonly for gas applications.

For vapor applications, the Series 700non-flowing pilot is supplied with pressurespike snubber as standard.

G. Remote Pressure SenseConnection:

• Safety valve will respond to actual system pressure conditions.

• Eliminates undesirable cycling due to excessive inlet pressure losses.

• Improves safety, under adverse operating conditions.

This optional feature permits the pilot tosense system pressure at a location thatmost accurately reflects the actualoperating pressure of the protectedsystem. A remote pressure senseconnection eliminates the false systempressure indication that will occur duringrelieving conditions, due to pressurelosses in the inlet piping to the safetyvalve. Most applicable codes recommendthat the inlet piping system be designedfor a maximum anticipated non-recoverable pressure loss of 3 percent. Ifthis is not possible, the remote pressuresense connection should be specified.

Please note that the addition of a remotepilot sense line allows the pilot to correctly

sense system pressure and to keep thevalve from rapid cycling or chattering. Withremote sensing the piston type, pilotoperated safety valves described in thiscatalogue will remain stable against theeffects of high inlet pressure lossphenomena. However, relieving capacitywill be proportionately reduced wheneverthere is inlet pressure loss to the safetyvalve.

Please note that valves furnished for remote pilot sense, may be converted to integral sense, or vice versa, since the pressure pickup is installed in all instances, and the integral senseconnection is closed off with a removable1/2-inch NPT threaded pipe plug.

H. Remote Valve Lift Indicator:• Provides remote signal to allow the

plant operator to know when apressure relief valve has opened.

This feature consists of a differentialpressure switch, actuated when the mainvalve has been operated. The switch isadjusted to sense the difference betweenthe system pressure and the main valvedome pressure. Electrical indication isthen available to a remote location.Furnish full particulars on electrical poweravailable, the switch contact style andrating, the type of enclosure and hazardrating. The switch will be mechanicallymounted to the main valve cap. Externalwiring enclosures are not normallyfurnished.


F

G

H



I. Manual Unloader:• Permits the safety valve to be opened

to depressurize the system.

• Acts as manual override to normalpressure setting, but has no effect onthe sealed pressure setting.

A manual unloader consists of a smallhand valve connected to the dome line ofthe main valve. Opening of the hand valvevents the dome pressure faster than it canbe recharged by the pilot supply. Sufficientdome pressure reduction results in pistonlift, due to unbalanced forces, simulatingpilot actuation. This option is used to allowthe safety valve to be used, along withother valves, for the emergency reductionof system pressure due to potential safetyhazards. When permitted, the manualunloader may be substituted for amechanical lift lever.

J. Pilot Lift Lever:• Permits manual test of safety valve

operation.

This feature is provided for thoseapplications where the mechanical liftingof the pilot is required for verification ofvalve operation. Lifting of the pilot spindlewill permit the main valve to lift when thesystem pressure is at least 75 percent ormore of set pressure. The pilot lift lever ispacked to prevent external leakage. Somesafety regulations and codes require thata lift lever be furnished for air, hot waterover 140°F [284°C] and steamapplications.

K. Pressure Spike Snubber (Liquid Service):

• Minimizes pressure "spikes" in liquidsystems that can cause seat wear orunwanted relief valve opening

Relief valves that are in locations such aspump discharge applications, can beexposed continuously to damaging liquidpulsations. If the amplitude and/or frequency of these pulsations cause anymovement in the relief valve trim, theseating performance can be quicklydiminished. If the peak of these pulsationsnears the cracking or even the set pressure, then unwanted releases of lading fluid can be experienced. The liquidspike snubber is positioned in the pilotsense line to protect the pilot andsubsequently the main valve from unusualwear. This dampener uses a gas charged bladder system to reduce the energy created in pulsating liquid service. Thedampener will stay charged with pressure,even if the relief valve opens and closesdue to overpressure. This option is available with the modulating 400 or 800series non-flowing pilots.


J

K

I




Pilot Valve

Supply (System)Pressure Gauge

Pilot SupplyLine

High PressureNitrogen orAir Supply

MeteringValve

Vent Valve

Remote Unloader:• Permits the safety valve to be remotely

opened to depressurize the system.

This is the same scheme as the manualunloader, except that the unloader valve isremotely operated. Either solenoid orpneumatic operation may be used. Pleasefurnish full particulars of the type ofunloader electro valve to be furnished,and the desired valve action: normallyopen or closed. For solenoid operation,specify the voltage and current (AC orDC). Furnish the frequency in Hertz foralternating current. The type of enclosure,such as explosion proof, splash proof,corrosion resistant, etc., must also bespecified for electrical operators. Unlessotherwise specified, no separate wiringenclosure is furnished.

If the remote unloader is supplied, it willbe mechanically mounted to the safetyvalve with the pressure connection to thedome line of the main valve. Venting willbe to the atmosphere through a weatherfitting.

Pilot Valve Test Drum:• Simplifies field and maintenance shop

resetting and repair.

This is an option for the shop testing andresetting of the pilot, and is offered forcustomer maintenance and repair shops.It consists of a small accumulator,

approximately 0.01 cubic meter (0.25cubic feet) volume, with the necessaryfittings, valves and test gauges formounting and testing of the pilot. The testdrums are made to order for the pilotmodels specified. Please furnish the setpressure range and the pilot models to betested. The customer furnishes thepressure supply to the accumulator. Toolsfor adjusting and servicing the pilot are notincluded.

NACE Option:• Essential option for sour gas service.

This is a material option to meet the stresscorrosion problems associated with sourgas service. The materials in both the pilotand main valve will meet the requirementsof NACE MR-01-75.



Notes

1. Type 546 not available in 1 x 2 or 1.5 x 2configuration.

2. Higher rated outlet flanges available on special order.

3. Series 200 pilot only. Add 5-inches forSeries 400 and 800 pilots, and 7-inches for Series 500 pilot.

4. Series 200 pilot only. Add 12 lbs. for Series400, 6 lbs. for Series 800 and 8 lbs. forSeries 500 Pilots

Dimensions and Weights

B

A

C

B

A

C

Flanged - Types 243/249/253/259, 443/453, 5461, 843/853

Size Available Inlet Flange Outlet Flange Dimensions Approximatein [mm] Equivalent RF or RJ RF2 A B C Approx.3 Weight4

Flow Areas in [mm] in [mm] in [mm] lb [kg]

1 x 2 [25 x 50] D, E, F 1” – 150# 2” – 150# 4.12 [105] 4.50 [114] 17 [430] 26 [11.8]

1 x 2 [25 x 50] D, E, F 1” – 300# 2” – 150# 4.38 [111] 4.50 [114] 17 [430] 27 [12.3]

1 x 2 [25 x 50] D, E, F 1” – 600# 2” – 150# 4.38 [111] 4.50 [114] 17 [430] 28 [12.7]

1 x 2 [25 x 50] D, E, F 1” – 900# 2” – 300# 4.94 [126] 4.75 [121] 21 [534] 35 [15.9]

1 x 2 [25 x 50] D, E, F 1” – 1500# 2” – 300# 4.94 [126] 4.75 [121] 21 [534] 35 [15.9]

1 x 2 [25 x 50] D, E, F 1” – 2500# 2” – 300# 4.94 [126] 4.75 [121] 21 [534] 39 [17.7]

11⁄2 x 2 [40 x 50] D, E, F 11⁄2” – 150# 2” – 150# 4.87 [124] 4.75 [121] 18 [448] 29 [13.2]

11⁄2 x 2 [40 x 50] D, E, F 11⁄2” – 300# 2” – 150# 4.87 [124] 4.75 [121] 18 [448] 33 [15.0]

11⁄2 x 2 [40 x 50] D, E, F 11⁄2” – 600# 2” – 150# 4.87 [124] 4.75 [121] 18 [448] 33 [15.0]

11⁄2 x 2 [40 x 50] D, E, F 11⁄2” – 900# 2” – 300# 5.87 [149] 5.50 [140] 22 [557] 44 [20.0]

11⁄2 x 2 [40 x 50] D, E, F 11⁄2” – 1500# 2” – 300# 5.87 [149] 5.50 [140] 22 [557] 44 [20.0]

11⁄2 x 2 [40 x 50] D, E, F 11⁄2” – 2500# 2” – 300# 5.87 [149] 5.50 [140] 22 [557] 55 [25.0]

11⁄2 x 3 [40 x 80] G, H 11⁄2” – 150# 3” – 150# 5.12 [130] 4.87 [124] 19 [482] 38 [17.3]

11⁄2 x 3 [40 x 80] G, H 11⁄2” – 300# 3” – 150# 5.12 [130] 4.87 [124] 19 [482] 42 [19.1]

11⁄2 x 3 [40 x 80] G, H 11⁄2” – 600# 3” – 150# 5.12 [130] 4.87 [124] 19 [482] 42 [19.1]

11⁄2 x 3 [40 x 80] G, H 11⁄2” – 900# 3” – 300# 6.38 [162] 6.75 [172] 23 [584] 48 [21.8]

11⁄2 x 3 [40 x 80] G, H 11⁄2” – 1500# 3” – 300# 6.38 [162] 6.75 [172] 23 [584] 48 [21.8]

11⁄2 x 3 [40 x 80] G, H 11⁄2” – 2500# 3” – 300# 6.38 [162] 6.75 [172] 23 [584] 65 [29.5]

2 x 3 [50 x 80] G, H, J 2” – 150# 3” – 150# 5.37 [136] 4.87 [124] 19 [482] 50 [22.7]

2 x 3 [50 x 80] G, H, J 2” – 300# 3” – 150# 5.37 [136] 4.87 [124] 19 [482] 52 [23.6]

2 x 3 [50 x 80] G, H, J 2” – 600# 3” – 150# 5.37 [136] 4.87 [124] 19 [482] 53 [26.4]

2 x 3 [50 x 80] G, H, J 2” – 900# 3” – 300# 6.56 [167] 6.75 [172] 23 [591] 79 [35.9]

2 x 3 [50 x 80] G, H, J 2” – 1500# 3” – 300# 6.56 [167] 6.75 [172] 23 [591] 79 [35.9]

2 x 3 [50 x 80] G, H, J 2” – 2500# 3” – 300# 7.00 [178] 6.75 [172] 24 [601] 95 [43.2]




Flanged - Types 243/249/253/259, 443/453, 546, 843/853

Size Available Inlet Flange Outlet Flange Dimensions Approximatein [mm] Equivalent RF or RJ RF1 A B C Approx.2 Weight3

Flow Areas in [mm] in [mm] in [mm] lb [kg]

3 x 4 [80 x 100] J, K, L 3” – 150# 4” – 150# 6.13 [156] 6.38 [162] 20 [508] 86 [39.1]

3 x 4 [80 x 100] J, K, L 3” – 300# 4” – 150# 6.13 [156] 6.38 [162] 20 [508] 90 [41.0]

3 x 4 [80 x 100] J, K, L 3” – 600# 4” – 150# 6.38 [162] 6.38 [162] 20 [508] 92 [41.8]

3 x 4 [80 x 100] J, K, L 3” – 900# 4” – 300# 7.50 [191] 7.12 [181] 25 [635] 121 [55.0]

3 x 4 [80 x 100] J, K, L 3” – 1500# 4” – 300# 7.50 [190.5] 7.12 [181] 25 [635] 138 [62.7]

4 x 6 [100 x 150] L, M, N, P 4” – 150# 6” – 150# 7.75 [197] 8.25 [210] 23 [584] 138 [62.7]

4 x 6 [100 x 150] L, M, N, P 4” – 300# 6” – 150# 7.75 [197] 8.25 [210] 23 [584] 148 [69.3]

4 x 6 [100 x 150] L, M, N, P 4” – 600# 6” – 150# 7.75 [197] 8.25 [210] 23 [584] 158 [71.8]

4 x 6 [100 x 150] L, M, N, P 4” – 900# 6” – 300# 9.81 [249] 9.19 [233] 29 [736] 228 [103.6]

4 x 6 [100 x 150] L, M, N, P 4” – 1500# 6” – 300# 9.81 [249] 9.19 [233] 29 [736] 248 [112.7]

6 x 8 [150 x 200] Q, R 6” – 150# 8” – 150# 9.44 [240] 9.50 [241] 26 [660] 245 [111.4]

6 x 8 [150 x 200] Q, R 6” – 300# 8” – 150# 9.44 [240] 9.50 [241] 26 [660] 264 [120.0]

6 x 8 [150 x 200] Q, R 6” – 600# 8” – 150# 9.70 [246] 9.50 [241] 26 [660] 308 [140.0]

8 x 10 [200 x 250] T 8” – 150# 10” – 150# 10.88 [276] 11.00 [279] 30 [762] 516 [234.5]

8 x 10 [200 x 250] T 8” – 300# 10” – 150# 10.88 [276] 11.00 [279] 30 [762] 544 [247.3]

8 x 10 [200 x 250] T 8” – 600# 10” – 150# 11.68 [297] 11.00 [279] 30 [762] 585 [265.9]

Threaded - Types 243/253, 443/453, 843/853

Size Available Inlet Outlet Dimensions Approximatein [mm] Equivalent A B C Approx.2 Weight3

in [mm] in [mm] in [mm] in [mm] in [mm] lb [kg]

1 x 2 [25 x 50] D, E, F 1” [25] 2” [50] 3.57 [91] 2.88 [73] 17 [431] 22 [10.0]

11⁄2 x 2 [40 x 50] D, E, F 11⁄2” [40] 2” [50] 3.57 [91] 2.88 [73] 17 [431] 22 [10.0]

11⁄2 x 2 [40 x 50] G, H 11⁄2” [40] 2” [50] 3.75 [95] 3.75 [95] 17 [431] 27 [12.3]

Notes

1. Higher rated outlet flanges available on special order.

2. Series 200 pilot only. Add 6 inches forSeries 400 and 800 pilots, and 7 inches forSeries 500 pilot.

3. Series 200 pilot only. Add 12 lbs. for Series400, 6 lbs. for Series 800 and 8lbs. forSeries 500 pilots.

B

A

C

B

A

C

Flanged

C

B

A

Threaded




B B

A

C

Notes

1. Dual outlets not available for Type 269.

2. Higher rated outlet flanges available.Consult factory.

3. Series 200 pilot only. Add 5 inches forSeries 400 and 800 pilots, and 7 inches forSeries 500 pilot.

4. Series 200 pilot only. Add 12 lbs. for Series400, 6 lbs. for Series 800 and 8lbs. forSeries 500 pilots.

Type 263/2691, 463, 566, 863

Size Inlet Outlet Dimensions Approximatein [mm] Flange Flange2 A B C Weight4

RF RTJ RF Approx.3 Single Dualin [mm] in [mm] in [mm] in [mm] lb [kg] lb [kg]

11⁄2 x 2 [40 x 50] 150# RF or RTJ 150# RF 3.62 [92] 3.87 [98] 4.50 [114] 18 [457] 31 [14.1] —

11⁄2 x 2 [40 x 50] 300# RF or RTJ 150# RF 3.75 [95] 4.00 [102] 4.50 [114] 18 [457] 34 [15.5] —

11⁄2 x 2 [40 x 50] 600# RF or RTJ 300# RF 4.06 [103] 4.06 [103] 5.24 [133] 18 [457] 38 [17.3] —

11⁄2 x 2 [40 x 50] 900# RF or RTJ 300# RF 4.43 [113] 4.43 [113] 5.24 [133] 22 [558] 48 [21.8] —

11⁄2 x 2 [40 x 50] 1500# RF or RTJ 300# RF 4.43 [113] 4.43 [113] 5.24 [133] 22 [558] 48 [21.8] —

2 x 3 or 2 x 3 x 3 [50 x 80] 150# RF or RTJ 150# RF 4.56 [115] 4.81 [122] 5.31 [135] 19 [482] 55 [25.0] 75 [34.1]



2 x 3 x 3 [50 x 80] 900# RF or RTJ 300# RF 5.69 [145] 5.75 [146] 7.16 [182] 24 [619] — 108 [49.1]

2 x 3 x 3 [50 x 80] 1500# RF or RTJ 300# RF 5.69 [145] 5.75 [146] 7.16 [182] 24 [619] — 108 [49.1]




3 x 4 x 4 [80 x 100 x 100] 900# RF or RTJ 300# RF 6.37 [162] 6.44 [164] 8.70 [221] 27 [685] — 175 [79.5]

3 x 4 x 4 [80 x 100 x 100] 1500# RF or RTJ 300# RF 7.66 [195] 7.72 [196] 8.70 [221] 29 [736] — 190 [86.4]




4 x 6 x 6 [100 x 150 x 150] 900# RF or RTJ 150# RF 9.21 [234] 9.27 [236] 7.38 [188] 28 [711] — 190 [86.4]

6 x 8 or 6 x 8 x 8 [150 x 200 x 200] 150# RF or RTJ 150# RF 8.87 [225] 9.12 [232] 8.25 [210] 27 [685] — 245 [111]



8 x 8 x 8 [200 x 200 x 200] 150# RF or RTJ 150# RF 10.44 [265] 10.69 [272] 11.44 [291] 31 [762] — 520 [236]

8 x 8 x 8 [200 x 200 x 200] 300# RF or RTJ 150# RF 10.94 [278] 11.25 [286] 11.44 [291] 32 [787] — 545 [247]

8 x 8 x 8 [200 x 200 x 200] 600# RF or RTJ 150# RF 11.12 [282] 11.25 [286] 11.44 [291] 32 [787] — 585 [265]

[200 x 250] or8 x 10 or 8 x 10 x 10

[200 x 250 x 250]150# RF or RTJ 150# RF 10.25 [260] 10.50 [267] 11.06 [281] 33 [838] 594 [270] 625 [284]

8 x 10 or 8 x 10 x 10[200 x 250] or[200 x 250 x 250]

300# RF or RTJ 150# RF 10.93 [278] 11.25 [286] 11.06 [281] 33 [838] 617 [280] 650 [295]

8 x 10 or 8 x 10 x 10 [200 x 250 x 250] 600# or RF or RTJ 150# RF 11.75 [299] 11.81 [300] 11.06 [281] 33 [838] 655 [297] 690 [313]

10 x 14 [254 x 356] 150# RF 150# RF 12.06 [306] — 13.75 [349] 37 [940] 995 [451] —

10 x 14 [254 x 356] 300# RF 150# RF 12.75 [324] — 13.75 [349] 37 [940] 1010 [458] —



Series 700 Dimensions and Weights

Class 150

Valve BasicDimensions

WeightSize Model

A B C (max.) Dlb [kg]

in [mm] in [mm] in [mm] in [mm]

2G3 72705G23 6.06 [154] 6.38 [162] 16.84 [428] 11.87 [301] 93 [42.2]

2H3 72705H23 6.06 [154] 6.38 [162] 16.84 [428] 11.87 [301] 93 [42.2]

2J3 72705J23 6.06 [154] 6.38 [162] 16.84 [428] 11.87 [301] 93 [42.2]

3J4 72705J34 7.25 [184] 7.56 [192] 18.01 [457] 13.64 [346] 141 [64.0]

3K4 72705K34 7.25 [184] 7.56 [192] 18.01 [457] 13.64 [346] 141 [64.0]

3L4 72705L34 7.25 [184] 7.56 [192] 18.01 [457] 13.64 [346] 141 [64.0]

4L6 72705L46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 220 [100.0]

4M6 72705M46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 220 [100.0]

4N6 72705N46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 220 [100.0]

4P6 72705P46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 220 [100.0]

6Q8 72705Q68 9.44 [240] 9.50 [241] 19.56 [497] 13.78 [350] 350 [159.1]

6R8 72705R68 9.44 [240] 9.50 [241] 19.56 [497] 13.78 [350] 350 [159.1]

6RR8 72705RR68 9.44 [240] 9.50 [241] 19.56 [497] 13.78 [350] 350 [159.1]

8T10 72705T810 10.88 [276] 11.00 [279] 22.50 [572] 16.34 [415] 750 [340.9]

Class 300


WeightSize Model



2G3 72710G23 6.06 [154] 6.38 [162] 16.84 [428] 11.87 [301] 93 [42.2]

2H3 72710H23 6.06 [154] 6.38 [162] 16.84 [428] 11.87 [301] 93 [42.2]

2J3 72710J23 6.06 [154] 6.38 [162] 16.84 [428] 11.87 [301] 93 [42.2]

3J4 72710J34 7.25 [184] 7.56 [192] 18.01 [457] 13.64 [346] 141 [64.0]

3K4 72710K34 7.25 [184] 7.56 [192] 18.01 [457] 13.64 [346] 141 [64.0]

3L4 72710L34 7.25 [184] 7.56 [192] 18.01 [457] 13.64 [346] 141 [64.0]

4L6 72710L46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 228 [103.6]

4M6 72710M46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 228 [103.6]

4N6 72710N46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 228 [103.6]

4P6 72710P46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 228 [103.6]

6Q8 72710Q68 9.44 [240] 9.50 [241] 19.56 [497] 13.78 [350] 365 [165.9]

6R8 72710R68 9.44 [240] 9.50 [241] 19.56 [497] 13.78 [350] 365 [165.9]

6RR8 72710RR68 9.44 [240] 9.50 [241] 19.56 [497] 13.78 [350] 365 [165.9]

8T10 72710T810 10.88 [276] 11.00 [279] 22.50 [572] 16.34 [415] 770 [350.0]

1. All weight and dimensions are approximatedepending on the size and accessories.

2. When specifying MDP Manifold Dual Pilotincrease the valve weight by 40 lb [18.2 kg].

Notes



Series 700 Dimensions and Weights

Class 600


WeightSize Model



2G3 72712G23 6.06 [154] 6.38 [162] 16.84 [428] 11.87 [301] 93 [42.2]

2H3 72712H23 6.06 [154] 6.38 [162] 16.84 [428] 11.87 [301] 93 [42.2]

2J3 72712J23 6.06 [154] 6.38 [162] 16.84 [428] 11.87 [301] 93 [42.2]

3J4 72712J34 7.25 [184] 7.56 [192] 18.01 [458] 13.64 [347] 141 [64.0]

3K4 72712K34 7.25 [184] 7.56 [192] 18.01 [458] 13.64 [347] 141 [64.0]

3L4 72712L34 7.25 [184] 7.56 [192] 18.01 [458] 13.64 [347] 141 [64.0]

4L6 72712L46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 235 [106.8]

4M6 72712M46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 235 [106.8]

4N6 72712N46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 235 [106.8]

4P6 72712P46 7.75 [197] 8.75 [222] 18.34 [466] 12.47 [317] 235 [106.8]

6Q8 72712Q68 9.44 [240] 10.50 [267] 19.62 [498] 15.28 [388] 380 [172.7]

6R8 72712R68 9.44 [240] 10.50 [267] 19.62 [498] 15.28 [388] 380 [172.7]

6RR8 72712RR68 9.44 [240] 10.50 [267] 19.62 [498] 15.28 [388] 380 [172.7]

8T10 72712T810 11.50 [292] 11.00 [279] 23.12 [587] 16.84 [428] 800 [363.6]

Notes

1. All weights and dimensions are approximate depending on size and accessories.

2. When specifying MDP Manifold Dual Pilotincrease the valve weight by 40 lb [18.1 kg].

D

B

A

C

B

A

C

C



Size Orifice Outlet Flange Maximum Set Pressurepsig [barg]

1.5 x 2 Full Bore 300# 2101 [144]

2 x 3 J 300# 4624 [318]

2 x 3 Full Bore 150# 952 [65]

3 x 4 L 150# 1426 [98]

3 x 4 L 300# 3630 [250]

3 x 4 Full Bore 150# 710 [49]

3 x 4 x 4 Full Bore 300# 3638 [250]

4 x 6 P 150# 1426 [98]

4 x 6 P 300# 3630 [250]

4 x 6 Full Bore 150# 1027 [70]

4 x 6 x 6 Full Bore 150# 2068 [142]

6 x 8 Q 150# 1454 [100]

6 x 8 R 150# 1020 [70]

6 x 8 Full Bore 150# 822 [56]

8 x 8 x 8 Full Bore 150# 1204 [83]

8 x 10 T 150# 985 [67]

8 x 10 Full Bore 150# 691 [47]

8 x 10 x 10 Full Bore 150# 1394 [96]

Outlet Flange Ratings

The user is cautioned that the outlet flangeof any PRV should be selected basedupon the back pressure developed at theflange during a relief cycle or worst casescenario.

As an example, for valves listed in thiscatalog that are installed to dischargethrough a tailpipe to atmosphere, thefollowing maximum set pressures can beaccommodated. These maximum setpressures are calculated based upon:

• Schedule 40 tailpipe, absolute roughness 0.00015, L/D = 15

• Total actual valve capacity at 10% overpressure

• Compressible flow (k = 1.4)

• Carbon steel bodied valves(SS valve ratings are at 97% of those listed)



Tyco Flow Control (TFC) provides the information herein in good faith but makes no representation as to its comprehensiveness or accuracy. This data sheet is intended only as a guide to TFC products and services.Individuals using this data sheet must exercise their independent judgment in evaluating product selection and determining product appropriateness for their particular purpose and system requirements. TFC MAKESNO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITHRESPECT TO THE INFORMATION SET FORTH HEREIN OR THE PRODUCT(S) TO WHICH THE INFORMATION REFERS. ACCORDINGLY, TFC WILL NOT BE RESPONSIBLE FOR DAMAGES (OF ANY KIND ORNATURE, INCLUDING INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES) RESULTING FROM THE USE OF OR RELIANCE UPON THIS INFORMATION. Patents and Patents Pending in the U.S. and for-eign countries. Tyco reserves the right to change product designs and specifications without notice.

www.tycovalves.com

Tyco Valves & Controls

Stafford Facility: 281-274-4400

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