ALL-PURPOSEBALANCED

CAGE-GUIDEDCONTROL VALVES

ANSI CLASS 150-15002” TO 16” (50MM TO 400MM)

Simple DesignSimple Opera/on

Simple Maintenance

D-Series

10/7.5.4B

R u g g e d C a g e G u i d i n g * H a r d e n e d T r i m M a t e r i a l s * M u l t i - S t a g e , A n t i - N o i s e & A n t i - C a v i t a t i o n T r i m

Product Informa/on

SIMPLY THE BEST!D-Series from Circor is the next genera4on of the reliable andproven DBOY control valve. The D-Series is an all-purposecage-guided, balanced control valve. This new product offers sim-plicity of design in a valve pla3orm that is well suited for the needsof power, process, and general industry. A wider selec4on of valvesizes, materials, and noise / cavita4on trims allows applica4onacross a broader range of flow rates, pressures and temperatures.

HARDENED STAINLESS STEEL TRIMStandard valve trim consists of heat-treated and hardened 400series stainless steel providing maximum hardness with excellentwear proper4es, in addi4on, 316 stainless steel is offered forsuperior corrosion resistance. Sea4ng surfaces can be addi4onallyarmored with a nickel/cobalt overlay (Stellite®) on the 316 stainlesssteel base material providing significantly longer service life than 316stainless steel trims.

CAGE OPTIONSInterchangeable trim and cages offer maximum versa4lity in flowcontrol applica4ons.Cage varia4ons include:

• reduced trim which provides capaci4es of 80% or40% of full trim capacity. This feature can be used tocontrol valve body veloci4es, to plan for future flowexpansion, or to correct for oversized condi4ons.

• Les-Cav cage effec4vely prevents any valve trimdamage due to valve cavita4on.

• Les-Sonic cage effec4vely reduces noise at the sourcein either a single-stage or two-stage construc4on.

BALANCED PLUG DESIGNThe balanced plug design of the D-Series equalizes line pressureunder the plug with pressure above the plug, effec4vely cancellingany unbalanced stem force due to pressure drop. In addi4on toproviding smooth, high-pressure control, balanced plugs allow useof smaller, lighter, cost-effec4ve actuators. Class III, IV or V shut offcan is provided.

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D-SERIES SPECIFICATIONS

BODY ASSEMBLY: Style: Single seated, top entry boltedbonnet, globe style body, cage guided balanced plug

SIZE, RATINGS & ENDCONNECTIONS:2” - 8”, Class 150, 300, 600, 900, 1500 RF, RTJ, BWE; only in 2”10” - 18” Class 150, 300, 600, RF, BWE, RTJ

BODY/BONNET MATERIALS:Carbon Steel, ASTM A216 Gr WCCChrome Moly, ASTM A217 Gr WC9Stainless Steel, ASTM A351 Gr CF8M

BONNET: Clamped BonnetHigh Temperature Extended Bonnet (Optional)

BODY/BONNET BOLTING:ASTM A-193 GR B7 Studs, ASTM A-194 GR 2H Nuts

STEM PACKING:PTFE V-Rings, -40 to 460˚F(-22 to 238˚C)BTG, -40 to 500˚F(-22 to 260˚C)Laminated Graphite,-320 to 800˚F (-195 to 426˚C)

PACKING STUDS, NUTS & FOLLOWER:300 Series Stainless Steel

GASKETS:Body/Bonnet and Seat Ring/Body:Spiral Wound 316L/Graphite 500˚F (260˚C) MaximumFlexible Graphite: 800˚F (426˚C) Maximum

TRIM SIZES:Full Port, 80%, 60% and 40% ReducedCustom, contact Application Engineering

PLUG (PISTON) SEAL MATERIALS:Graphite-reinforced PTFE, max. temp. 500˚ (Class IV shutoff)Ni-Resist, max. temp. 800˚F (Class III shutoff)

FLOW CHARACTERISTICS:Linear, and Equal Percentage

SHUTOFF CLASS (ANSI /ISA 70-2):Standard trim, 0-500˚F(-18 to 260˚C) Max. Class IV (.01% Cv).High-temp trim, 0-800˚F(-18 to 426˚C), Class III (.1% Cv).For optional Class IV or V shutoff, contact factory.

TRIM MATERIAL COMBINATIONS:

PLUG CAGE SEAT RINGMartensitic STD 410 Hardened 410 Hardened 410 HardenedMartensitic HI-TEMP CA6NM CA6NM CA6NM

Nitrided Nitrided NitridedAustemtic STD 316 316 316Austemtic HI-TEMP 316 Stellited 316 Stellited 316 Stellited

ACTUATORS:Standard: Spring and DiaphragmOptional: Piston, Double Acting/Spring Return

HIGH FLOW CAPACITIESD-Series flow capaci4es are greater than or equalto compe4ng product. Op4mized flow geometryreduces body veloci4es and pressure losses, maxi-mizing valve body life.

CAGE RETAINED SEAT DESIGNUnlike some compe4ng designs, which use compli-cated seat reten4on methods, the D-Series cageand seat ring are clamped in place between thebonnet and body. This design eliminates the main-tenance problems associated with removal ofbolted-in seat rings.

RUGGED PLUG SEALD-Series heavy cupwasher style PTFE plug seal hasthree times the cross-sectional area and wear sur-face of competing designs with minimal friction fortightest resolution. Pressure energized to provide atight seal at low and high pressures, D-Series sealprovides tight shut-off for longer than competitivedesigns.

RELIABLE ACTUATOR CONNECTIOND-Series actuators are clamped in place with asimple and reliable yoke lock nut. Actuatormoun4ng guarantees ease of disassembly noma5er how corrosive the environment.

REDUCED SEAT WEAR/TIGHTER SHUT-OFFD-Series control valves are specifically designed forhigh pressure drop service. Pressure drop, high ve-locities and throttling occur only at the cage win-dow and the plug, thereby protecting the seat ringand tight shut-off capability of the valve.

D-Series

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Feature Advantage Benefit

Rugged, Pressure-Balanced Design Allows for the Use of Smaller Actuators Lower Initial Cost

Multi-stage, Anti-Noise, Anti-Cavitation Trims Efficient Energy Dissipation Longer Life of Valve Assets

Optimized , High Capacity Flow Path Higher Cv per Size than Majority of Valves Lower Initial Costsin its Class

Compact Multi-Spring Actuator Reduced Height and Weight Lower Installation Costs

Industry Standard Accessory Mounting Accommodates most valve automation Lower Automation Costsproducts

Interchangeable, Top-Entry, & Self-Aligning Flexibility of Applications, Ease of Access, Reduced Spare Inventory CostTrim and High Alignment Integrity

High-Performance, High Temp, Stem Packing Reduced Leakage, Lower Fugitive Emissions Improved Environmental Compliance

4 Precision Machined Trim Sets Available Highly Accurate and Repeatable Throttling Improved Product Yield & QualityControl

Hardened Trim Materials with Wide Variety Longer Life and Greater Flexibility Reduced Operating and Maintenance Costs,of Material Selection Longer Service Life

D-Series Features & Benefits

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Key Target Applica/ons

The D-Series is well suited for a variety of general service applica4ons as well as moderate noise and cavita4onabatement services.

Feedwater Control regulates level of water in the boiler drum.

Auxiliary Steam Pressure Reduc/on Valve1) Sootblower: increases thermal efficiency by controlling steam supplied from superheated source.2) Building Heat: Used for extrac4on steam control3) Pegging Steam Control: Control of superheated steam to remove air from condensate at deaerator

Drain Valve prevents the presence of condensate in the turbine at startup or shutdown

Gland Seal Steam Valve is used to maintain constant gland stem pressure to seal air form the turbine.

A0emperator Spray, Superheat and Reheat Valve controls steam temperature to the turbine. In superheat applica-4ons this valve requires high control accuracy; in reheat spray applica4ons cavita4on control and shutoff integrityare required.

Other Applica/ons: Condensate recircula4on, condensate blow down control, reheat atmospheric vent and fuel gascontrol in power plant opera4ons. Steam management and major equipment protec4on (pumps and compressors)in Oil & Gas service, as well as a variety of applica4ons in oil refining, gas processing, natural gas storage and LNGand gas transmission.

TYPICAL FOSSIL FUEL POWER PLANT SYSTEM

D-Series

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Thermal steam linesExtraction steam linesCondensate steam lines

1 - Feedwater Control Valve2 - Turbine and Header Drain Control Valve3 - Desuperheater Spray Control Valves

4 - Gland Seal Control Valves5 - Deaerator Level Control Valve6 - Heater Drain Control Valves

Key:

Note: Temperatures and pressures shown are llustrative only.

Superheater

Fuel

Air

Ash

3

1A 12

Boiler

Reheater

To condenser

Main steam line

Cold reheat line

Hot reheat line

2500 psia 1000ºF

700psia550ºF

650psia950ºF

Extraction steam lines

Boilerfeedpump

AirVent

50 psiasteam

Deaerator

1800 psia

800 psia

100 psia

5

5

Treatment

7

FromBFP

recirc.

H.P.Turbine

L.P.Turbine Generator

Condenser

Cooling water

CondensatePump

Feedwater Heaters

H.P. I.P. L.P.

9 9 9

To condenser

6

6

4

8

4

D-Series Rugged Cage Design

Standard CageThe full ported, standard cage, provides maximum flow with minimum pressure drop. Theinherent linear or equal percent flow characteris4c provides excellent low flow control, highrangeability and maximum Cv per inch.

An/-Cavita/on CageThe Les-Cav cage controls the effects of valve cavita4on providing a normalvalve/trim life expectancy in cavita4ng condi4ons. Diametrically opposedholes, increase the valves cavita4on index (Kc) and direct impinging flow to thecenter of the cage, preven4ng mechanical trim/body damage.

Reduced Trim CageThis op4onal cage reduces the maximum Cv and flow to 80%, 60% or40% of the normal full port valve. Used to provide body velocity control,future flow expandability, or to correct for oversized valve condi4ons.

Noise Reducing CageThe Les-Sonic cage is designed to reduce fluid generated noise up to

15 - 20dBA in steam, gas or any compressible fluid service. When usedin conjunc4on with a Les-Sonic silencing orifice, noise a5enua4on

of greater than 20dBA can be achieved.

D-Series Cv TableLes-Sonic I

Valve DN Rating Full 60% Full 60% Single Les-Cav ISize (in) EQ% EQ% Linear Linear Stage

2 50 150-1500 68 41 75 45 60 60

3 80 150-1500 140 84 155 93 124 124

4 100 150-1500 216 130 240 144 192 192

6 150 150-1500 400 240 450 270 340 340

150-600 756 454 800 480 672 672

900-1500 680 408 720 432 604 604

10 250 150-600 1395* 1116* 1300* 1040* 1240* 1240*

12 300 150-600 1818* 1454* 1800* 1440* 1616* 1616*

16 400 150-600 2600* 2080* 3100* 2800* 2480* 2480*

8 200

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*Currently in Testing

Actuator Offerings

Spring & Diaphragm ActuatorThe D Series is available with a mul4-spring diaphragm actuator whichdelivers excellent control performance in a compact package. This actu-ator design is based on decades-proven and highly reliable diaphragm

technology. The spring and diaphragm actuator provides for inherent failsafe opera4on and can be easily reversed between direct and reverse

ac4ng func4on. Standard posi4oners and a variety of accessoriescleanly mount on this actuator.

Standard D-Series Accessories

Posi�oners� Pneuma4c Siemens Model 760P� Electropneuma4c Siemens Model 760E� Siemens PS2� Op4onal internal limit switches� Op4onal valve posi4ons transmissionProcess Controllers� Electropneuma4c: PMC-2� Pneuma4c: PDAP/PRAP� Pneuma4c: Mallard 3350/3360Solenoid Valves� ASCO 8320G174Noise Reduc�on Devices� Noise Suppressor� Les-Sonic Silencing OrificeAir Regulators� ASG-1� AFG-2Manual Override Handwheels

Piston ActuatorThe D Series is also available with a powerful piston

actuator. This actuator provides high thrust for its size bytaking advantage of higher air supply pressures. The piston

actuator offers precise control performance, long strokecapability, and s4ffness that effec4vely buffers high fluid

dynamic forces experienced in more extreme flowcondi4ons. Standard posi4oners and a variety of

accessories cleanly mount on this actuator.

D-Series

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The D-Series is Available From:

A global manufacturer specializing in highly engineered, complex and severe environment productsthat serve long-term, high-growth infrastructure markets, including upstream oil and gas, powergenera4on and aerospace.

...and is Marketed Under the Following CIRCOR Brands:

Leslie Controls, Inc. has designed and manufactured valves for the power genera4on, indus-trial, marine and oil and gas markets for over a century. From high quality regulators with 99%accuracy to severe service control valves that provide ZERO LEAKAGE, Leslie Controls productsare known throughout the world. Customers also rely on Leslie for engineered solu4ons fortheir most difficult applica4ons. Leslie’s Quick Delivery program provides a broad range ofstandard product within five days.

Regeltechnik Kornwestheim (RTK) has more than 35 years experience in the manufacture andsales of control valves and is a leading European manufacturer of industrial valves. RTK deliv-ers innova4ve products and services that improve thermal efficiency and system safety for allhea4ng and refrigera4on processes. RTK offers control valves, electric and pneuma4c actua-tors, sensors and controllers engineered for thermal control applica4ons in general industry,as well as auxiliary boiler and water treatment applica4ons in power genera4on.

Mallard Control is a premier supplier of measurement and control solu4ons to the oil and gasindustry. Our products (control valves, regulators, relief valves, controllers, switches, andgauges) cover virtually every produc4on facility instrumenta4on requirement, providing cus-tomers easy access to top-quality equipment from a single source at the most compe44veprice.

www.lesliecontrols.com • sales@lesliecontrols.com • 800.439.4485www.rtk.de • info@rtk.de • +49 7154 1314 0

www.circorenergy.com • charla.kuhlman@circorenergy.com • 800.654.4842