december 2014 type y693 gas blanketing regulator · bulletin 74.1:y693 december 2014 d102026x012...

Bulletin 74.1:Y693December 2014

D10

2026

X01

2

www.fisherregulators.com

Type Y693 Gas Blanketing Regulator

IntroductionAn Accu-Pressure™ Gas Blanketing Regulator reduces a high pressure gas, such as nitrogen, to maintain a protective environment above any liquid stored in a vessel or tank when the liquid is being pumped out. Also when the vessel is suddenly cooled, causing vapors inside the vessel to contract, the regulator system replaces the volume of contracting vapors with a volume of blanketing gas to prevent the internal vessel pressure from decreasing. In both cases a slight positive vessel pressure prevents outside air, moisture and other contaminants from entering the vessel and the possible collapse of the vessel walls.

The Type Y693 (Figure 1) is a direct-operated regulator used for accurate pressure control on low pressure blanketing systems. Downstream pressure is sensed through an external control line in the lower casing of the regulator. The Type Y693 is available in NPS 1-1/2 and 2 / DN 40 and 50 body sizes.

Features• Ease of Inspection and Maintenance—The union

nut and/or hex head bolt connection between the body and actuator permits access to the disk and

orificebyonlyremovingthediaphragmcasingassembly without removing the body from the pipeline (see Figure 2).

• Accuracy of Control—Balanced trim and large diaphragm area reduces hysteresis to as little as +/- 0.50 in. w.c. / 1 mbar deviation from setpoint.

• Inlet Pressure Sensitivity—Less than 0.25 in. w.c. / 0.6 mbar setpoint shift over the entire inlet pressure range.

• Speed of Response—A change in vessel pressure registers directly under the diaphragm resulting in the fastest possible speed of response.

• Variety of Materials—Regulator body, trim and valve disk are available in various material combinationsforprocessfluidcompatibility.

• Outlet Pressure Stability—4 to 1 lever ratio reduces regulatorsensitivitytoinletpressurefluctuation.

• Tight Shutoff Capability—Aflat-faceddiskof Nitrile (NBR), Fluorocarbon (FKM) or Polytetrafluoroethylene(PTFE)providesexcellentshutoff capability.

Figure 1. Type Y693 Gas Blanketing Regulator

W6200

Bulletin 74.1:Y693

2

1.EndconnectionsforotherthanU.S.standardscanusuallybeprovided;consultyourlocalSalesoffice.2.Fabricatedbyusingslip-onflangesandsocketweldingnipplesintobody.3. The pressure/temperature limits in this Bulletin and any applicable standard limitation should not be exceeded.

SpecificationsThissectionliststhespecificationsfortheTypeY693gasblanketingregulators.Factoryspecificationarestampedon the nameplate fastened on the regulator at the factory.

Table 1. Outlet (Control) Pressure Ranges

OuTlET PRESSuRE RAnGES(1)COlORCOdE

COnTROl SPRInGWIRE dIAMETER

COnTROl SPRInG FREE lEnGTH PART

nuMBERIn. w.c. mbar In. mm In. mm

Light diaphragm plate

0.5 to 2.02 to 55 to 88 to 1818 to 32

1.2 to 5 5 to 12 12 to 20 20 to 45 45 to 80

BrownRed

BlackWhite StripeGreen

0.1090.1200.1300.1560.182

2.773.053.303.964.62

6.127.5317.887.507.25

155191200190184

1D8925270221D8926270221D8927270121D8932270321D893327032

Heavy diaphragm plate1 to 2 psig

1.5 to 3.3 psig2 to 5 psig

0.07 to 0.14 bar0.10 to 0.23 bar0.14 to 0.34 bar

BlueOrangeYellow

0.2250.2500.283

5.726.357.19

7.0936.916.50

176180165

1H9758270321H9759270321P615427142

Heavy diaphragm plate with brass closing cap and heavy duty spring adjustor

2 to 5.5 psig4 to 10 psig

0.14 to 0.38 bar0.28 to 0.69 bar

Green StripeRed

0.3630.406

9.2210.3

6.006.00

152152

0Y0664270221H8024000A2

1. Outlet pressure ranges are for installations with the spring barrel positioned in any direction. After installation always check/adjust the pressure setting.

Available ConfigurationsDirect-operated pressure reducing regulator with external registration requiring a downstream control line. Ten outlet pressure ranges from 0.5 in. w.c. to 10 psig / 1 mbar to 0.69 bar. Available in NPS 1-1/2 and 2 / DN 40 and 50 body sizes.

End Connections(1)

NPT(1) (standard)Flanged(2) (Optional)ENClassPN16,25and40RFFlanged(Optional)

Maximum Inlet Pressure(3)

150 psig / 10.3 bar

Maximum Outlet Pressure(3)

10 psig / 0.69 bar

Maximum Outlet Pressure (Casing)(3)

15 psig / 1.0 bar

Maximum Operating Outlet Pressure to Avoid Internal Part damage(3)

2 psig / 0.14 bar above outlet pressure setting

Outlet Pressure Ranges(3)

See Table 1

Construction MaterialsSee Table 2

Common Services and Materials CompatibilitySee Table 3

Material Temperature Capabilities(3)

nitrile (nBR):-20to180°F/-29to82°CFluorocarbon (FKM):40to300°F/4to149°CPTFE:0to300°F/-18to149°C

Orifice Diameter1/2 in. / 13 mm

Flow CapacitiesSee Table 6

Coefficients For Relief Valve SizingCg with fully open valve plug: 185C1: 33

Spring Case Connection3/4 NPT female connection

Approximate WeightsCast iron with Aluminum: 22 lbs / 10 kgWCC Steel or CF8M Stainless steel: 57 lbs / 26 kgWCC Steel with Aluminum: 35 lbs / 16 kg

Bulletin 74.1:Y693

3

Figure 2. Type Y693 Regulator Construction Features

AluMInuM lOWER CASInG VERSIOn

STEEl OR STAInlESS STEEl lOWER CASInG VERSIOn

W6240-1

VEnT

lOWERCASInG

ClOSInG CAP

AdjuSTInG SCREW

COnTROl SPRInG

SPRInG CASE

dIAPHRAGM

ORIFICE

SOFT dISK

W6239-1

VEnT

lOWERCASInG

ClOSInG CAP

AdjuSTInG SCREW

COnTROl SPRInG

SPRInG CASE

dIAPHRAGM

ORIFICE

SOFT dISK

Bulletin 74.1:Y693

4

Principle of OperationThe Type Y693 Gas Blanketing Regulator reduces a higher-pressure gas to maintain a positive low pressure of blanket gas over a stored liquid (see Figure 3). Also when the vessel (or tank) is suddenly cooled, causing vapors to contract, the regulator replaces the volume of contracting vapors with a volume of blanketing gas to prevent the internal vessel pressure from decreasing. In both cases, a positive vessel pressure prevents outside air from entering the vessel and reduces the possibility of atmospheric pressure collapsing the vessel.

Gas blanketing regulators respond to a slight decrease in internal vessel pressure (caused by pump out or atmospheric cooling) by throttling open to increase theflowrateofgasintothevessel.Whenthevessel’sliquid level has been lowered to the desired point and the vapor pressure reestablished, the regulator throttles closed.

When the liquid level drops and vessel pressure decreases below the setting of the control spring, the spring force on the diaphragm opens the disk assemblytosupplytherequiredflowofgastothevessel.Whenvesselpressurehasbeensatisfied,outlet pressure tends to increase slightly, acting on the diaphragm. When the outlet pressure exceeds the control spring setting, the diaphragm moves to close the disk assembly.

Sizing Blanketing SystemsWhen sizing a gas blanketing regulator system for a low-pressure application, you must consider the replacement of blanketing gas required for the liquid loss during pump out of the vessel plus the condensation/contraction of vessel vapors during atmospheric thermal cooling.

UsingtheestablishedproceduresfromAmericanPetroleum Institute Standard 2000 (API 2000), determinetheflowrateofblanketinggasrequired.

1. Determinethegasflowraterequiredtoreplacetheliquid being pumped out (see Table 4).

2. Determinethegasflowratedueto‘‘inbreathing’’caused by atmospheric thermal cooling (see Table 5).

3. Add the requirements of 1 and 2 and select regulator size, based on total capacity required from Table 6.

Figure 3. Typical Type Y693 Installation (Steel or Stainless steel lower casing version)

BlOCK VAlVE

BlOCK VAlVE

BlOCK VAlVE

VEnT VAlVE

VEnT VAlVE

VEnT VAlVE

TYPE Y693

COnTROl lInE

GAS BlAnKETInG PRESSuRE

VESSEl / TAnK

Sample sizing problem for blanketing applications:

VesselCapacity . . . . . . . . . . . 210,000 gal. / 795 000 L PumpIn/OutCapacity . . . . . . . . . 80 gal/min. / 303 L/m Inlet (header) Pressure . . . . . .40 psig / 2.8 bar Nitrogen Desired Blanket Setpoint. . . . . . . . 0.5 in. w.c. / 1 mbar

1. MultiplytheflowrateconversionfactorfromTable4bythepumpratetoobtaintheairflowrequiredtoreplace the volume of liquid pumped out.

8.021x80GPM=642SCFH

2. Determinetheairflowrequiredforthermalcoolingfrom Table 5.

210,000 gal. tank size requires 5000SCFH/134Nm3/h air

Totalrequiredflow:642+5000= 5642SCFH/151Nm3/h air

3. Convertairflowtonitrogenflowbymultiplyingtheairflowbythesquarerootof1dividedbythespecificgravityofnitrogen.

5642x1/1.97=5729SCFH/154Nm3/h nitrogen

A6342

Bulletin 74.1:Y693

5

Table 2. Type Y693 Regulator Construction Materials

PART nAMEMATERIAl

Aluminum lower Casing Version Steel or Stainless Steel lower Casing Version

Body Castiron WCBsteelorStainlesssteel

Body Gasket Composition Composition

UnionNut - - - - Steel or Stainless steel

Spring case Aluminum Aluminum,WCBsteelorStainlesssteel

Lower casing Aluminum WCBsteelorStainlesssteel

Orificeandbiasspring Stainless steel Stainless steel

Pusher post and stem Aluminum Stainless steel

Lever assembly Steel Stainless steel

Diaphragm Nitrile (NBR) or Fluorocarbon (FKM) Nitrile (NBR) or Fluorocarbon (FKM)

Controlspring,springseatandsplitring Plated steel Plated steel

Diaphragm plate Aluminum and Steel Aluminum and Steel

Disk and O-rings Nitrile (NBR) and Stainless steel, Fluorocarbon (FKM) andStainlesssteel,PTFEandStainlesssteel

Nitrile (NBR) and Stainless steel or Fluorocarbon (FKM) andStainlesssteelorPTFEandStainlesssteel

4. From Table 6, at 0.5 in. w.c. / 1 mbar set pressure and40psiginletpressure,aTypeY693willflow8880SCFH/238Nm3/hnitrogen.Thissatisfiesthe5729SCFH/154Nm3/h requirements.

Capacity InformationTable 6 gives typical nitrogen regulating capacities at selected inlet pressures and outlet pressure settings. Flows are in SCFH (60°F and 14.7 psia) of 0.97 specificgravitynitrogen.Forgasesofotherspecificgravities, multiply the given capacity of nitrogen by 0.985, and divide by the square root of the appropriate specificgravityofthegasrequired.Then,ifcapacityisdesiredinnormalcubicmetersperhoursat0°Cand1.01325 bar, multiplySCFHby 0.0268.

Todeterminewide-openflowcapacitiesforreliefsizing,usethefollowingformula:

Q =520GT

3417C1

PP1

CgP1SIN DEG

where,Cg = gassizingcoefficientfromSpecificationstableC1 =Cg/Cvor33fromtheSpecificationstableG = gasspecificgravity(air=1.0)

P1abs= inlet pressure, psia (add 14.7 psi to gauge inlet pressure to obtain absolute inlet pressure)

Q = flowrate,SCFHT = absolute temperature in °R of gas at inlet (°F + 460)

InstallationThe regulator may be installed in any position as longastheflowthroughthebodyisinthedirectionindicatedbytheflowarrowattachedtothebody.Installthe regulator as close as possible to the blanketed vessel using a straight run of pipe the same size or larger as the regulator body. Position the body and/or diaphragm spring case so it will not collect moisture or debris into the screened vent and also be self draining (as shown in Figure 3). If a block valve is required, installafullflowvalvebetweentheregulatorandtheblanketed vessel.

Attach a downstream pressure control line to the female connection in the lower spring case. The female pressure connection is a 1/2 NPT in the steel or Stainless steel lower spring case and a 3/4 NPT forthealuminumlowerspringcase.Connecttheother end of the control line to the vessel. To allow for self-drainage, install the control line at an angle so that any liquid material will drain away from the regulator. See Figure 4 for the location of the external control line connection.Externaldimensionsandconnectionsareshown in Figure 4.

Bulletin 74.1:Y693

6

Table 3. Materials Compatibility

CORROSIOn InFORMATIOn

FluidMaterial

FluidMaterial

Carbon Steel

Cast Iron

316 Stainless Steel

Carbon Steel

Cast Iron

316 Stainless Steel

Acetic Acid, Air FreeAcetic Acid VaporsAcetoneAcetyleneAlcohols

CCAAA

CCAAA

BAAAA

Hydrochloric Acid (Air Free)HydrogenHydrogen PeroxideHydrogenSulfide,LiquidMagnesium Hydroxide

CA

I.L.CA

CAACA

CAAAA

Aluminum SulfateAmmoniaAmmoniumChlorideAmmonium NitrateAmmonium Sulfate

CACAC

CACCC

AABAA

MethanolMethylEthylKetoneNatural GasNitric AcidPetroleumOils,Refined

AAACA

AAACA

AAABA

AmmoniumSulfiteBeerBenzene (Benzol)Benzoic AcidBoric Acid

CBACC

CBACC

AAAAA

Phosphoric Acid (Air Free)Phosphoric Acid VaporsPotassiumChloridePotassium HydroxidePropane

CCBBA

CCBBA

ABAAA

ButaneCalciumChloride(Alkaline)CarbonDioxide,DryCarbonDioxide,WetCarbonDisulfide

ABACA

ABACA

ABAAA

Silver NitrateSodium AcetateSodiumCarbonateSodiumChlorideSodiumChromate

CAACA

CAACA

AAABA

CarbonTetrachlorideCarbonicAcidChlorineGas,DryChlorineGas,WetChlorine,Liquid

BCACC

BCACC

BBBCC

Sodium HydroxideStearic AcidSulfurSulfur Dioxide, DrySulfur Trioxide, Dry

AAAAA

ACAAA

AAAAA

ChromicAcidCitricAcidCokeOvenGasCopperSulfateEther

CI.L.ACB

CCACB

BBABA

Sulfuric Acid (Aerated)Sulfuric Acid (Air Free)Sulfurous AcidTrichloroethyleneWater, Boiler Feed

CCCBB

CCCBC

CCBAA

EthylChlorideEthyleneEthyleneGlycolFormaldehydeFormic Acid

CAAB

I.L.

CAABC

AAAAB

Water, DistilledWater, SeaZincChlorideZinc Sulfate- - - -

ABCC

- - - -

ABCC

- - - -

ABCA

- - - -Freon, WetFreon, DryGasoline,RefinedGlucoseHydrochloric Acid (Aerated)

BBAAC

BBAAC

AAAAC

- - - -- - - -- - - -- - - -- - - -

- - - -- - - -- - - -- - - -- - - -

- - - -- - - -- - - -- - - -- - - -

- - - -- - - -- - - -- - - -- - - -

FluId InFORMATIOn

Fluid PTFE nitrile (nBR)

Fluorocarbon (FKM) Fluid PTFE nitrile

(nBR)Fluorocarbon

(FKM)

Acetic Acid (30%)AcetoneAlcohol,EthylAlcohol, MethylAmmonia, AnhydrousAmmonia, Gas (Hot)BenzeneBrine(CalciumChloride)Butadiene GasButane, GasButane, LiquidCarbonTetrachlorideChlorine,DryChlorine,WetCokeOvenGasEthylAcetateEthyleneGlycolFreon 11Freon 12

AAAAAAAAAAAAAAAAABB

BCAACCCACA+ACCCBCAAA

BCBCCCABBAAAAA

A+CA

A+B

Freon 22Freon 114GasolineHydrogen GasHydrogenSulfide(Dry)HydrogenSulfide(Wet)Jet Fuel (JP-4)Natural GasNatural Gas + H2S (Sour Gas)Nitric Acid (10%)Nitric Acid (50 to 100%)Nitrogen Oil (Fuel)PropaneSea WaterSulfur DioxideSulfuric Acid (to 50%)Sulfuric Acid (50 to 100%)Water (Ambient)Waterat200°F/93°C

ABAAAAAAAABAAAAAAAAA

CA

A+ACCA

A+BCCA

A+AACCCAB

CBAACCAACAAAAAAAAAAB

1. MarkownedbyInternationalNickelCo.2. MarkownedbySteliteDiv.,CabotCorp. A+ - Best possible selection. A - Recommended.

B - Minor to moderate effect. Proceed with caution.C-Unsatisfactory. I.L. - Information lacking.

Bulletin 74.1:Y693

7

Table 4. Flow Rate Conversion (Gas flow required to replace or displace Blanketing Gas with Pump-Out or Pump-In of Liquid)

MulTIPlY MAXIMuM PuMP RATE In: BY TO OBTAIn:

U.S.GPMU.S.GPH

Barrels/hourBarrels/day

8.0210.13375.615

0.2340

SCFHairrequiredSCFHairrequiredSCFHairrequiredSCFHairrequired

Table 5. Gas Flow Required for Thermal Heating (Outbreathing) or Cooling (Inbreathing) per API 2000 (Interpolate for Intermediate sizes)

VESSEl CAPACITY AIR FlOW RATE REQuIREdBarrels gal. SCFH nm3/h

6010050010002000

25004200

21,00042,00084,000

60100500

10002000

1.62.7

13.426.853.6

300040005000

10,00015,000

126,000168,000210,000420,000630,000

300040005000

10,00015,000

80.4107134268402

20,00025,00030,00035,00040,000

840,0001,050,0001,260,0001,470,0001,680,000

20,00024,00028,00031,00034,000

536643750831911

45,00050,00060,00070,00080,000

1,890,0002,100,0002,520,0002,940,0003,360,000

37,00040,00044,00048,00052,000

9921072117912861394

90,000100,000120,000140,000160,000

3,780,0004,200,0005,040,0005,880,0006,720,000

56,00060,00068,00075,00082,000

15011608182220102198

180,000 7,560,000 90,000 2412

Ordering InformationWhenordering,specify:

Application1. Type of gas being used for blanketing (nitrogen,

fuelgas,etc.);listanyfactorssuchasimpuritiesin the gas that may affect compatibility of the gas with the regulator trim parts.

2. Specificgravityofthegas

3. Temperature of the gas

4. Rangeofflowinginletpressurestoregulator

5. Regulator pressure setting

6. Flow rates a) Minimumcontrolledflow b) Normalflow c) Maximumflow

7. Line size and end connection size of adjacent piping

RegulatorRefertotheSpecificationstableonpage2.Carefullyreviewthedescriptionofeachspecificationandspecifythe desired selection wherever there is a choice to be made.AlwaysspecifythetypenumberasidentifiedintheAvailableConfigurationsspecification.

Bulletin 74.1:Y693

8

Table 6. Typical Type Y693 Blanketing Regulator Capacities in SCFH / Nm3/h of 0.97 Specific Gravity Nitrogen

-continued-

SPRInG RAnGE,PART nuMBER

And COlOR

COnTROl PRESSuRE SETTInG InlET PRESSuRE

CAPACITIES In SCFH / nm3/h OF 0.97 SPECIFIC GRAVITY nITROGEn FOR 1-1/2 And 2 In. / dn 40 And 50 BOdIES WITH

A 1/2 In. / 13 mm ORIFICEdeviation from Setpoint

±0.5 In. w.c. / ±1 mbar

-0.5 to 1 In. w.c. / -1 to 2 mbar

-0.5 to 2 In. w.c. / -1 to 5 mbar

In. w.c. mbar psig bar SCFH nm3/h SCFH nm3/h SCFH nm3/h

0.5 to 2 in. w.c. /1 to 5 mbar

1D892527022

Brown

0.5(1) 1(1)

251020406080100125150

0.140.340.691.42.84.15.56.98.6

10.3

7501570250050008800

12,1007100710071007100

20.142.167.0134236324190190190190

7501570250050008800

12,10015,40015,20014,20012,200

20.142.167.0134236324413407381327

7501570250050008800

12,10015,40018,60022,70026,700

20.142.167.0134236324413498608716

deviation from Setpoint±0.5 In. w.c. /

±1 mbar±1 In. w.c. /

±2 mbar-1 to 2 In. w.c. /

-2 to 5 mbarSCFH nm3/h SCFH nm3/h SCFH nm3/h

0.5 to 2 in. w.c. /1 to 5 mbar

1D892527022

Brown

1 2

251020406080100125150

0.140.340.691.42.84.15.56.98.6

10.3

7501570250050008800

12,1007100710071007100

20.142.167.0134236324190190190190

12702280340052008800

12,10015,40015,20014,20012,200

34.061.191.1139236324413407381327

12702280340052008800

12,10015,40018,60022,70026,700

34.061.191.1139236324413498608716

2 to 5 in. w.c. /5 to 12 mbar

1D892627022

Red

3 7

251020406080100125150

0.140.340.691.42.84.15.56.98.6

10.3

7501570250050008800

12,10011,20011,20011,20011,200

20.142.167.0134236324300300300300

12702280340052008800

12,10015,40014,20014,20014,200

34.061.191.1139236324413381381381

12702280340052008800

12,10015,40018,60022,70026,700

34.061.191.1139236324413498608716

5 to 8 in. w.c. /12 to 20 mbar1D892727012

Black

7 17

251020406080100125150

0.140.340.691.42.84.15.56.98.6

10.3

7101370211030505580

10,20014,20018,60011,20011,200

19.036.756.581.7150273381498300300

10702030313042608020

11,50015,40018,60022,70026,700

28.754.483.9114215308413498608716

10702030313042608020

11,50015,40018,60022,70026,700

28.754.483.9114215308413498608716

1. For set pressures less than 1 in. w.c. / 2 mbar use only Nitrile (NBR) elastomers.

Bulletin 74.1:Y693

9

Table 6. Typical Type Y693 Blanketing Regulator Capacities in SCFH / Nm3/h of 0.97 Specific Gravity Nitrogen (continued)

-continued-


And COlOR



A 1/2 In. / 13 mm ORIFICE

deviation from Setpoint

±1 In. w.c. / ±2 mbar

±2 In. w.c. / ±5 mbar

In. w.c. mbar psig bar SCFH nm3/h SCFH nm3/h

8 to 18 in. w.c. /20 to 45 mbar1D893227032

Gray

11 27

251020406080100125150

0.140.340.691.42.84.15.56.98.6

10.3

66012702130305071109540

13,20018,60022,70026,700

17.734.057.181.7191256354498608716

10201830284040607610

12,10015,40018,60022,70026,700

27.349.076.1109204324413498608716


±1 In. w.c. / ±2 mbar

±2 In. w.c. / ±5 mbar

SCFH nm3/h SCFH nm3/h

18 to 32 in. w.c. /45 to 80 mbar1D893327032

Dark green

20 50

251020406080100125150

0.140.340.691.42.84.15.56.98.6

10.3

590810

110015202740406066009140

22,70026,700

15.821.729.540.773.4109177245608716

7101420183030506090

10,20015,40018,60022,70026,700

19.038.149.081.7163273413498608716


±0.1 In. w.c. / ±0.007 mbar

±0.2 In. w.c. / ±0.014 mbar


1 to 2 psig /69 to 138 mbar1H975827032

Dark blue

1 psig 69

251020406080100

0.140.340.691.42.84.15.56.9

250110017802640447065009140

10,400

6.7029.547.770.8120174245279

8601830294048708120

11,10015,40018,600

23.049.078.8131218297413498


±0.3 In. w.c. / ±0.021 mbar

±0.6 In. w.c. / ±0.041 mbar


1.5 to 3.3 psig /103 to 228 mbar1H975827032

Orange

3 psig 0.21 bar

51020406080100

0.340.691.42.84.15.56.9

12202540386071009340

13,20015,800

32.768.1103190250354423

1730340052008880

12,10015,40018,600

46.491.1139238324413498

Bulletin 74.1:Y693

10


And COlOR



A 1/2 In. / 13 mm ORIFICE


±0.5 In. w.c. / ±1 mbar

±1 In. w.c. / ±2 mbar

psig bar psig bar SCFH nm3/h SCFH nm3/h

2 to 5 psig /138 mbar to 0.3 bar

1P615427142

Yellow

3 0.21

71020406080100

0.480.691.42.84.15.56.9

14002330406069009740

12,80015,200

37.562.4109185261343407

2200305052008880

12,10015,40018,600

59.081.7139238324413498


±0.6 In. w.c. / ±1 mbar

±1 In. w.c. / ±2 mbar


2 to 5.5 psig /138 mbar to 0.4 bar

0Y066427022

Green Stripe

5 0.35

7 1020406080100

0.480.691.42.84.15.56.9

1200142024404260589075109140

32.238.165.4114158201245

16002230376062908730

11,40014,200

42.959.8101169234306381


±0.6 In. w.c. / ±1 mbar

±2 In. w.c. / ±5 mbar


4 to 10 psig /276 mbar to 0.7 bar

1H8024000A2

Silver

10 0.69

1520 406080100

1.01.42.84.15.56.9

160020303650508065007920

42.954.497.8136174212

2600350066809300

11,90014,900

69.793.8179249319399

Table 6. Typical Type Y693 Blanketing Regulator Capacities in SCFH / Nm3/h of 0.97 Specific Gravity Nitrogen (continued)

Bulletin 74.1:Y693

11

In. /mm

14B0813-A

AluMInuM lOWER CASInG VERSIOn WITH A STEEl BOdY

14B0812-A

STEEl OR STAInlESS STEEl lOWER CASInG VERSIOn

3/4 nPTVEnTCOnnECTIOn

1/2 nPTdOWnSTREAMCOnTROlCOnnECTIOn

14.00 /356

11.88 /302

5.88 /149

2.94 /75

10.38 /264

17.44 /443

7.06 /1791-1/2 And 2 nPT

Figure 4. Type Y693 Dimensions



12.25 / 311

6.12 /155

3.19 /81

2.19 /56

1-1/2 And 2 nPT

17.69 /449

14.00 /356

10.62 /270

Bulletin 74.1:Y693

©Emerson Process Management Regulator Technologies, Inc., 1994, 2014; All Rights Reserved

The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC, a business of Emerson Process Management.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

Emerson Process Management Regulator Technologies, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser.

Industrial Regulators

Emerson Process Management Regulator Technologies, Inc.

USA - HeadquartersMcKinney, Texas 75070 USATel: +1 800 558 5853Outside U.S. +1 972 548 3574

Asia-PacificShanghai 201206, ChinaTel: +86 21 2892 9000

EuropeBologna 40013, ItalyTel: +39 051 419 0611

Middle East and AfricaDubai, United Arab EmiratesTel: +971 4811 8100

Natural Gas Technologies

Emerson Process ManagementRegulator Technologies, Inc.

USA - HeadquartersMcKinney, Texas 75070 USATel: +1 800 558 5853Outside U.S. +1 972 548 3574

Asia-PacificSingapore 128461, SingaporeTel: +65 6770 8337

EuropeBologna 40013, ItalyTel: +39 051 419 0611Chartres 28008, FranceTel: +33 2 37 33 47 00

Middle East and AfricaDubai, United Arab EmiratesTel: +971 4811 8100

TESCOM

Emerson Process ManagementTescom Corporation

USA - HeadquartersElk River, Minnesota 55330-2445, USATels: +1 763 241 3238 +1 800 447 1250

EuropeSelmsdorf 23923, GermanyTel: +49 38823 31 287

Asia-PacificShanghai 201206, ChinaTel: +86 21 2892 9499

For further information visit www.fisherregulators.com

Figure 4. Type Y693 Dimensions (continued)

B243814B0814-A

AluMInuM lOWER CASInG VERSIOn WITH A CAST IROn BOdY

1-1/2 And 2 nPT

3.19 /81

6.12 /155

12.25 /311

2.06 /52

10.62 /270

17.69 /449



In. /mm

december 2014 type y693 gas blanketing regulator · bulletin 74.1:y693 december 2014 d102026x012...

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