Valves

General application

The unique rotating disc choke valves have been designed for the upstream segment of the oil and gas market, excelling in applications with high differential pressure and abrasive fluids, including production, high pressure separators and well injection and fracturing applications.

They are used in:• Oil and gas production• Level control valve• Blowdown valve• Water injection• Steam injection• Gas injection• Fracturing• Handling drilling fluids• Handling slurry• Gas lift valve

Vonk CHOke VaLVeSModel SCV (Angle Body)

Features

• The standardized forged body and standard flanges ensure short delivery time and lowest cost of ownership.

• Field proven extended service life, delivered by a robust but simple rotating disc and bean design.

• Low life cycle costs resulting from improved resistance to corrosive and/or abrasive production fluids.

• ease of maintenance and inspection, facilitated by removal of limited internals while valve remains in service.

• Operational confidence and safety, guaranteed by repeatable 100% shut-off to Class V aSMe FCI-70.

• Operational reliability with the capability of handling high pressure drops and delivering precise Cv values.

• Controlled environmental impact governed by reduced effects of noise and vibration.

• Improved pressure recovery performance factor delivered by the unique bean and disc design.

Providing extended service life, precise flow control, ease of maintenance and operational reliability in the most challenging applications

technical data

Body material: aISI 4130Bonnet type: BoltedBody rating: 6000 psigConnections: Flange, hub, thread and

butt weldPressure range: aSMe 150 / 2500 aPI 2000 / 5000 Temperature range: -46 to +250°C -51 to +482°FBody size: NPS 1 to 3end connections: NPS 1 to 6Leakage class: Class V acc. aSMe FCI-70-2

Vctds-03222-en 15/03© 2015 Pentair plc. all Rights Reserved.www.pentair.com/valves

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Valve specificationValve model SCVBody type Right angleBody rating 425 barg / 6000 psigInlet connection See dimension tablesOutlet connection See dimension tablesBonnet type BoltedBody/bonnet material See "material options"Stem material Duplex (standard)Trim material Tungsten carbideFlow charateristic LinearSeat tightness Class V

product oVerView

The choke valves provide superior performance in abrasive environments, precise flow control and ease of maintenance, delivering operational reliability in the most challenging oil and gas applications as the industry copes with extreme operating conditions and remote operating environments. The SCV model is designed as an angle body configuration and is available from NPS 1 to NPS 3 body sizes, incorporating engineered rotating disc trim technology which minimizes wear while maximizing controllability and guaranteeing positive shut-off service. Our choke valve range is highly versatile and is designed with an ISO top flange for easy automation. The forged standardized bodies ensure a high body integrity. The standardized forged body and standard flanges ensure short delivery time and lowest cost of ownership.

FlanGes

aSMe flanges can be delivered with:• Raised face, stock finish• Raised face, smooth finish• RTJ groovesDimensions are given in mm, weights are approximate in kgs of bare valve. Other sizes are available on request.Standard end-to-end dimensions are available. On request, the build-in dimensions can be modified to customer specification.

Materialstemperature class

PU -29 / 121°C -20 / 250°FLU -46 / 121°C -51 / 250°F

certification levelPSL 1PSL 2PSL 3

Materialsapi 6a material class

aa BB dd eeBody aISI 4130 aISI 4130 aISI 4130 aISI 4130Bonnet aISI 4130 aISI 4130 aISI 4130 aISI 4130Stem Duplex Duplex Duplex DuplexBolting aSTM a320 L7M aSTM a320 L7M aSTM a320 L7M aSTM a320 L7MFront disc Tungsten carbide Tungsten carbide Tungsten carbide Tungsten carbideBean Tungsten carbide Tungsten carbide Tungsten carbide Tungsten carbide

Protective bushing

Turning fork

Front disc

Bean

3

C

B

A

C

B

A

NPS 1 aSMe 300 RF 171 6.73 222 8.74 183 7.20 37 82(DN 25) aSMe 600 RF 178 7.01 229 9.02 183 7.20 37 82

aSMe 600 RTJ 177 6.98 228 8.99 183 7.20 37 82aSMe 900 RF 189 7.44 240 9.45 183 7.20 43 95aSMe 900 RTJ 188 7.42 239 9.42 183 7.20 43 95aSMe 1500 RF 189 7.44 240 9.45 183 7.20 44 96aSMe 1500 RTJ 188 7.42 239 9.42 183 7.20 44 96aSMe 2500 RTJ 204 8.05 255 10.05 183 7.20 47 103





2 1/16" aPI 2000 190 7.48 248 9.76 183 7.20 45 100aPI 3000 219 8.61 277 10.89 183 7.20 59 130aPI 5000 219 8.60 277 10.89 183 7.20 60 131

3 ⅛" aPI 2000 200 7.87 258 10.16 183 7.20 54 119aPI 3000 219 8.60 277 10.89 183 7.20 65 143aPI 5000 234 9.23 292 11.51 183 7.20 80 175


standard diMensions and end connections 1” Body sizeconnection type class

a ±2 B±2 c weightmm inch mm inch mm inch kg lbs.

4

C

B

A

C

B

A







2 1/16" aPI 2000 210 8.27 268 10.55 221 8.70 66 146aPI 3000 239 9.39 297 11.68 221 8.70 80 177aPI 5000 239 9.39 297 11.67 221 8.70 80 177

3⅛" aPI 2000 220 8.66 278 10.94 221 8.70 75 164aPI 3000 239 9.39 297 11.67 221 8.70 86 190aPI 5000 254 10.02 312 12.30 221 8.70 100 221

4 1/16" aPI 2000 239 9.41 307 12.09 221 8.70 93 204aPI 3000 251 9.89 319 12.57 221 8.70 104 230aPI 5000 261 10.27 329 12.94 221 8.70 122 269




5

C

B

A

C

B

A



NSP 4 aSMe 300 RF 255 10.02 353 13.88 305 12.01 178 392(DN 100) aSMe 600 RF 278 10.93 376 14.78 305 12.01 192 423




3⅛" aPI 2000 260 10.22 353 13.88 305 12.01 173 380aPI 3000 278 10.94 371 14.61 305 12.01 184 405aPI 5000 294 11.57 387 15.23 305 12.01 198 435

4 1/16" aPI 2000 279 10.96 377 14.82 305 12.01 193 425aPI 3000 291 11.46 389 15.31 305 12.01 204 450aPI 5000 300 11.82 398 15.68 305 12.01 222 489

7 1/16" aPI 2000 295 11.59 405 15.93 305 12.01 233 513aPI 3000 316 12.44 426 16.78 305 12.01 258 568aPI 5000 350 13.76 460 18.09 305 12.01 315 693




6

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Cv

12.5 mm8 mm

25 mm18 mm

0

3

6

9

12

15

18

21

24

27

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Cv

0

100

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

35 mm50 mm

Cv

90

80

70

60

50

40

30

20

10

8 21 2.6 2.312.5 32 6.5 5.6

18 45 13 11.525 64 27 23.4

35 88 50 43.350 128 103 89.2


oriFice diaMeters and cv Values 1" Bodyorifice (mm) Bean size Max cv Max kv

1" VaLVe CHaRaCTeRISTICS

active turning angle %







7

AA

SECTION A-A SCALE 1 : 3

2

4

5

6

7

10

12

13

11

14

15

16

3

9

8

1

A

B

C

pos. no parts1 Body2 Bean3 Seal body-bonnet4 Front disc5 Bearing6 Protecting bush7 Turning fork8 Stem seal9 Seal body-bonnet10 Spring11 Bearing12 Studs and nuts13 Bearing14 Bearing15 Bonnet16 Bonnet shaft


actuation options• Manual• Pneumatic• Hydraulic• electric• Pneumatic stepping• Hydraulic stepping• electro-hydraulicOther actuator available upon request

handwheel mounting position a. optional B and c are also possible.

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