PINCH VALVES AND PRESSURE SENSOR’S

B-Pinch Valve Brochure (R-11/06)

APPLICATIONPV10, PV15 and PV20 Pinch Valves pro-vide excellent flow control due to their sim-ple yet effective design. The sleeve is theonly valve part exposed to line fluid thuseliminating expensive breakdown ofmechanical components that can occur inother valve designs.

OPERATIONTwo pinch bars squeeze the flexible rubbersleeve, allowing the series PV 10, PV15,PV20. Valves to achieve variable and stableflow rates. Fully opened valves allow full lin-ear flow, eliminating caves where solids col-lect to impair operation. Fully closed valvesmaintain complete closure, with no leakageeither direction.

APPLICATIONSeries PV30 Pinch Valves provide effectivemeans of flow control for hard-to-handlemedia such as slurries, sludges, and drysolids.

OPERATIONA flexible elastomer sleeve is contained in acast metal housing. The annular cavitybetween the sleeve and the housing actsas the valve’s actuator.

As pressurized air or water enters thehousing, the sleeve is pinched shut.Venting the pressure allows the valvesleeve to resume full normal flow position.

APPLICATIONCla-Val CVPS Pressure Sensors offer aproven method of protecting pressure meas-urement and control instruments in processlines. CVPS sensors also effectively elimi-nate seal cavity blockage common todiaphragm pressure sensors due to theircomplete isolation from the process fluidusing an elastomer sleeve. Use CVPS pres-sure sensors to protect gauges, transducersand other process control instrumentation toreduce maintenance costs.

OPERATIONCVPS Wafer Style Pressure Sensor has onlyone wetted part that is encased in a one-piece molded sleeve for simplicity and dura-bility. Pressure in the pipeline or vessel istransmitted through the elastomer sleeve tothe instrument resulting in accurate consis-tent readings of even hard to gauge liquids.In addition, because of the high amount ofliquid displaced, when compared to conven-tional diaphragm sensors, multiple instru-ments can be installed. The wafer designand integral flange gaskets are ideally suitedfor mounting between ANSI flanges. A vari-ety of sleeve materials is available for differ-ent process fluids. Sensors are availablewith alloy metal or plastic threaded connec-tions.

SLEEVE MATERIAL SELECTIONEthylene Propylene Rubber For applications involving water, steam ordiluted acids.

Viton Resists solvents, halogenated hydrocarbons,oxygen, weather, ozone, oils and chemicals.

Buna-N®

Resistant to kerosene, moderate chemicals,fats, oils grease and many hydrocarbons.

Natural Rubber (NR)Good abrasion resistance, tensile strengthand resiliency. also suitable when dealingwith organic acids, alcohols, ketones andmost moderate chemicals.

Hypalon (CSM)Resists strong acids and basis, ozone, weather-ing, heat and oxidising chemicals.

ButylGood resistance to animal and vegetablefats, strong and oxidising chemicals, oils,heat and greases.

Neoprene (CR)Generally resistant to oil and grease, moder-ate chemicals, fats, many hydrocarbons andozone. Resistant to barnacle growth.

Sleeves forCla-Val seriesPinch ValvesAvailable in

Different Styles.

CHOOSE YOUR STYLE OF SLEEVE

PV20Closed

Body StylePV10 & PV15

OpenBody Style

PV30Split-Body

Style

CVPSPressure Sensors

Wafer Styles

Quality Features at No Extra Cost!• Short face-to-face• Full port area• Center sleeve closure• Tight shut-off on solids• Over pinch guard• Positive pull opening tabs• Valve position clearly visible

Heavy Construction at No Extra Cost!• Rugged carbon steel body

• Easy to operate at high pressure

• Lubricated stem and bearing pad

• Stainless steel guide rods

• Reduced port sleeve for throttling flow

• Double wall sleeves for severe service

Open Body Pinch Valve

OPERATIONThe Cla-Val Series PV10 Open Body Pinch Valves provide simple means tomanually control the flow of abrasive and corrosive slurries, liquids and solids.The valve operates by turning the handwheel clockwise to close, counter-clock-wise to open like a gate valve, but unlike a gate valve the PV10 series valve hasno sliding or rubbing metal surfaces to wear out - the sleeve is merely squeezedto the desired open or closed position. As a standard sleeve material, pure gumrubber with reinforced polyester fabric is used for highest strength and longerlasting cycle life.

MAINTENANCECla-Val Pinch Valves are basically maintenance free because the sleeveisolates all mechanical parts from the media. The sleeve is the only parttypically inventoried for future replacement.

E-PV10 (R-11/06)

Many Synthetic Sleeve MaterialsAvailable:Neoprene - Chlorobutyl - Hypalon - Buna-N® -Ethylene Propylene Rubber - Urethane and VitonWhen ordering above sleeve materials add the firstletter of the material after the model number.ie: Model PV10.10N (N for Neoprene)

Series PV10 Open Body Pinch Valves

6

6

6

6

8

10

12

12

16

16

20

26

32

36

40

44

48

54

4 1/8

5

7 3/8

9

10 9/16

11 3/16

13 1/4

15 1/8

18

20

23

29 3/8

33 3/8

38 3/8

44

47 9/16

44

54

5

7

10

15

24

30

37

55

73

88

142

275

378

440

500

550

650

900

Weight

(est.) lbs

HandwheelDiameter

FE

1 3/4

2

2 1/8

2 1/2

3

3 1/2

3 3/4

4 1/2

5

5 1/2

6 3/4

8

9 1/2

10 1/2

11 3/4

12 1/2

13 3/4

16

D

3 1/2

5

6

6 5/8

8 3/8

9 1/4

10 1/8

11 3/4

14

15 1/2

20

24

28

31 3/8

35

37 1/4

44

51 3/4

WidthC

200

200

150

150

150

150

150

150

125

125

75

75

75

50

50

50

50

50

Working Pressure

PSI

4

5

5 1/2

6 1/2

7

7 1/2

8

9

10

10 1/2

16

20

24

28

32

36

40

48

LengthB

1/2

3/4

1

1 1/2

2

2 1/2

3

4

5

*6

*8

*10

*12

*14

*16

*18

*20

*24

Pipe SizeInches

A

PV10.05

PV10.75

PV10.100

PV10.150

PV10.2

PV10.250

PV10.3

PV10.4

PV10.5

PV10.6

PV10.8

PV10.10

PV10.12

PV10.14

PV10.16

PV10.18

PV10.20

PV10.24

ModelNo.

* Available with bevel gear or manual hydraulic operatorSeries PV10 up to 6” have ANSI B16-10-5-FF lengths. For special designs contact factory

WHEN ORDERING, Please specify following information:

Flange Drilling

ANSIPN 6PN 16Other

ANSI 300PN 10BS 10

n

n

n

n

n

n

n

Sleeves Availablein Different Styles.

Series PV10

Quality Features at NoExtra Cost!• Short face-to-face• Full port area• Center sleeve closure• Tight shut-off on solids• Over pinch guard• Positive pull opening tabs• Valve position clearly visible

Heavy Construction at No Extra Cost!• Rugged carbon steel body

• Easy to operate at high pressure

• Lubricated stem and bearing pad

• Stainless steel guide rods

• Reduced port sleeve for throttling flow

• Double wall sleeves for severe service

Open Body Pinch Valve

OPERATIONThe Cla-Val Series PV15 Open Body Pinch Valves provide simplemeans to manually control the flow of abrasive and corrosive slurries,liquids and solids.The valve operates by turning the handwheel clockwise to close, count-er-clockwise to open like a gate valve, but unlike a gate valve the PV15series valve has no sliding or rubbing metal surfaces to wear out - thesleeve is merely squeezed to the desired open or closed position. As astandard sleeve material, pure gum rubber with reinforced polyesterfabric is used for highest strength and longer lasting cycle life.

MAINTENANCECla-Val Pinch Valves are basically maintenance free because thesleeve isolates all mechanical parts from the media. The sleeve isthe only part typically inventoried for future replacement.

Many Synthetic Sleeve MaterialsAvailable:Neoprene - Chlorobutyl - Hypalon - Buna-N® -Ethylene Propylene Rubber - Urethane and VitonWhen ordering above sleeve materials add the firstletter of the material after the model number.ie: Model PV15-N (N for Neoprene)

-High Pressure-

ApplicationsMining - Waste and Water Treatment - Food Processing, Plants

The body of the PV15 Series Valve is availablein carbon steel, aluminum or stainless steel. theopen-frame design is standard.

WHEN ORDERING, Note: please specify following information:

Flange Drilling

ANSIPN 6PN 16Other

ANSI 300PN 10BS 10

n

n

n

n

n

n

n

ID1

F/F1

W1

A1

B1

C1

Max. WorkPressure2

Weight3

(est.)

1/24 -1/23 -1/21 -3/44 -1/8

4

200

5

3/45 -1/2

6254

200

7

166

2 -1/476

200

10

1 1/26

6 -1/22 -1/2

88

200

15

2883

9-1/49

200

32

2 1/2109

3 -1/21010

200

42

31210

3 -3/41212

150

51

416

11 -3/44-1/2

14 -1/414

150

68

520

13-1/25

1616

150

102

624

15-1/25-1/2

1818

150

123

83219

6-3/42020

150

198

1040258

2226

150

385

124828

9-1/22632

150

529

1442

31-3/810-1/2

3236

150

616

164837

11-3/43640

150

700

185440

12-1/24044

150

770

206044

13-3/44448

150

910

2472

51-3/4165454

150

1260

1-inches 2-psi 3-pounds Dimensions can be revised to fit custom specifications.

Series PV15

E-PV20 (R-11/06)

OPERATIONThe Cla-Val Series PV20 Closed Body Pinch Valves provide simple means tomanually control the flow of abrasive and corrosive slurries, liquids and solids.The valve operates by turning the handwheel clockwise to close, counter-clockwise to open like a gate valve, but unlike a gate valve the PV20 seriesvalve has no packing or metal surfaces to wear out - the sleeve is merelysqueezed to the desired open or closed position.The standard sleeve materi-al, pure gum rubber, is made with reinforced polyester fabric for higheststrength and longer lasting cycle life. Sizes 8” and larger are available withbevel gear operators for automatic operation.

MAINTENANCECla-Val Pinch Valves are basically maintenance free because the sleeve iso-lates all mechanical parts from the media. The sleeve is the only part typical-ly inventoried for future replacement.

A

C

F

E

D

B

Series PV20 Closed Body Pinch Valves

1

1 1/2

2

2 1/2

3

4

5

6

8

10

12

14

16

18

20

24

Length

B

5 1/2

6 1/2

7

7 1/2

8

9

10

10 1/2

16

20

24

28

32

36

40

48

Working

Pressure psi.

150

150

150

150

150

150

125

125

75

75

75

50

50

50

50

50

Width

C

5 1/4

5 3/8

7 1/8

9 3/4

8 1/4

9 1/2

12 1/2

13

18 1/2

22 1/2

25

29

33

35

39

50 1/2

D

3

4

4 1/2

5

5

5 1/2

6 1/2

8

10

11

12

14

15

16

17

23

E

7 1/2

7 1/2

9 3/8

9 3/8

10 1/2

12

16

18

22

24

25

29

32

35

37

43

Diameter

F

4

4

8

8

8

12

11

18

22

22

22

30

30

36

36

48

Weight

(est.) lbs

12

25

34

43

52

123

200

300

345

410

472

588

930

1150

1300

1510

Heavy Construction at No Extra Cost!• Rugged Cast Iron body

• Easy to operate at high pressure

• Lubricated stem and bearing pad

• Stainless steel guide rods

• Reduced port sleeves for throttling flow

• Double wall sleeves for severe application

Quality Features at No ExtraCost!• Short face-to-face

• Full port area

• Center sleeve closure

• Tight shut-off on solids

• Over pinch guard

• Positive pull opening tabs

• Valve position clearly visible

Sizes 8” & larger available with bevel gear operators. Sizes up to 6” have ANSI B16-10-51-FF lengths or special lengths available upon request.

Closed Body Pinch Valve

Model

No

PV20.100

PV20.150

PV20.2

PV20.250

PV20.3

PV20.4

PV20.5

PV20.6

PV20.8

PV20.10

PV20.12

PV20.14

PV20.16

PV20.18

PV20.20

PV20.24

Many Synthetic Sleeve Materials Available:Neoprene - Chlorobutyl - Hypalon - Buna-N

®- Ethylene

Propylene Rubber - Urethane and VitonWhen ordering above sleeve materials add the first letterof the material after the model number.ie: Model PV20.10N (N for Neoprene)

Pipe Size

A

WHEN ORDERING, Please specify following information:

Flange Drilling

ANSIPN 6PN 16Other

ANSI 300PN 10BS 10

n

n

n

n

n

n

n

Sleeves Availablein Different Styles.

Series PV20

Series PV30 Split Body Pinch Valves

E-PV30 (R-11/06)

OPERATION The Cla-Val Series PV30 Pinch Valves provide a positive means to controlflow of hard to handle aggressive media such as slurries, sludges and drysolids.The standard, pure gum elastomer sleeve, the only moving part ofthe valve, is contained in a cast iron or aluminum housing. The annularspace surrounding the sleeve and the housing becomes the valve actuatorwhen charged with air or water.As pressurized air or water enters the annular space, the elastomer sleeveis squeezed shut. Venting the pressurized air or water opens the valve.

MAINTENANCECla-Val Split Body Pinch Valve is truly maintenance free because it has nomechanical moving parts. The only wetted part is the elastomer sleeve,made of reinforced polyester fabric for longer lasting cycle life. The sleeveis the only part ever needed for future replacement.

Quality Features at No Extra Cost!• Simple open/close operation• Only one moving part• Long cycle life• Full port area• Tight shutoff, even on trapped solids• Suitable for vacuum service

Heavy Duty Construction• Cast Iron or Aluminum two piece• Split body-easy sleeve replacement• Extra thick wear lining• Only reinforced polyester fabric is used for

higher strength sleeves!• Many elastomers to choose:

Food grade and double wall sleevesReduced port sleeves for throttling flowSpecial service construction available

Split-Body Pinch Valve

Many Synthetic Sleeve Materials Available:Neoprene - Chlorobutyl - Hypalon - Buna-N® - EthylenePropylene Rubber - Urethane and VitonWhen ordering above sleeve materials add the first letter ofthe material after the model number.ie: Model PV30.10N (N for Neoprene)

Size

A

1/2

3/4

1

1 1/2

2

2 1/2

3

4

5

6

8

10

12

14

16

18

20

24

Length

B

3

4

5

7

9

10

12

12 1/2

16 1/2

20

22

24

26

30

34

39

43

51

Width

C

4 1/4

5

5 3/4

6 1/2

8 1/2

9

10

11 3/4

11 3/4

15 1/4

17 1/2

19 3/8

21 1/2

24

25

28 1/4

29

37 1/2

Height

D

3 1/2

3 7/8

4 1/4

5

7 1/8

7 1/2

8 1/8

10 5/8

11 1/2

13 1/2

18

22 3/8

25

27 1/2

29 1/2

32 5/8

36 1/2

47

Control Port

E

1/4” NPT

1/4” NPT

1/4” NPT

1/2” NPT

1/2” NPT

1/2” NPT

1/2” NPT

1/2” NPT

1/2” NPT

1/2” NPT

1/2” NPT

1” NPT

1” NPT

1” NPT

1” NPT

1” NPT

1” NPT

1” NPT

Weight

Cast Iron

5

7

9

17

32

40

51

70

137

180

257

440

485

825

933

1300

1555

2525

Weight

Aluminum

2

4

6

8

15

20

23

34

60

88

120

195

252

291

340

560

670

790

Working

Pressure

125

125

125

125

125

125

125

100

75

75

75

50

50

50

50

25

25

25

D A

B

E

C

Model

No

PV30.05

PV30.75

PV30.100

PV30.150

PV30.2

PV30.250

PV30.3

PV30.4

PV10.5

PV30.6

PV30.8

PV30.10

PV30.12

PV30.14

PV30.16

PV10.18

PV30.20

PV30.24

Series PV30

Sleeves Availablein Different Styles.

Mini-Pinch Valve• Full port design• Simple actuation• On-Off or throttling• Only 2 wetted parts• Broad range of materials• Tight shutoff even on trapped solids

AIR INLET

FLOW

FLOW

FLOW

PRINCIPLES OF OPERATION

Valve is in open and normal flow of heavy slurriesor dry powder materials is maintained.

Valve closes when compressed air is introducedinto valve forcing the flexible sleeve to tighten,stopping flow.

Flow is resumed when air pressure is released.Packed material can be loosened by pulsing theair supply which creates a throttling or flexingaction of the sleeve.

• Mining• Pulp and Paper• Food Processing• Pharmaceutical• Petrochemical• Waste and Water

treatment• Paint, Ink and Resins

Typical Applications

Typical Advantages

• Full port design• On-off and throttling • Wide material range • Simple actuation• Only 2 wetted parts• Bubble tight closure

even against solids

MPVSERIES

0102030405070809

1/43/81/23/41

1 1/223

1 1/22 1/82 1/82 1/42 1/23 3/4

45

33 1/23 1/2

44 1/26 1/2

79

60 PSI60 PSI60 PSI60 PSI60 PSI50 PSI 50 PSI25 PSI

Often, in slurry or dry powder systems, process is interrupted bygate, globe, plug or butterfly valves that have been cloggedwith material. There is a solution, Mini-Pinch Valves.

Designed for easy installation. Mini-Pinch Valves can be used toeffectively control viscous or abrasive material flow. The ruggeddesign delivers consistent and long life.

In operation, flow passes smoothly through the full port elas-tomer sleeve. To close the valve, plant or instrument air is intro-duced into the valve body. The increased pressure collapsesthe sleeve and stops the flow, even against trapped solids. Toreopen the valve, the compressed air is vented and regular flowis restored. By changing the air pressure, flow rate can be controlled.Pulsing the air flow to the valve body can loosen packed material.The Cla-Val MPV valve features machined steel body and end fit-tings with corrosion resistant electroplate finish.

E-MPV (R-9/06)

Size A BPipe Size

NPTWorkingPressure

• Full port design• Accurate pressure instrument protection• One wetted part• Operates multiple instruments

The Cla-Val CVPS Pressure Sensors provide the ideal method ofprotecting pressure measurement and control instruments inprocess lines. The full port flow through design of CVPS sensorsis self cleaning, eliminating the problem of seal cavity blockagethat is common with diaphragm type pressure sensors. Theinstrumentation is completely isolated from the process fluid line.

The CVPS wafer style pressure sensors contain only one wettedpart, with integral flange gaskets provided by the one piece moldedsleeve, and are available to suit all ANSI flange classifications. Avariety of sleeve materials is available to provide optimum abra-sion and corrosion resistance for different process fluids.Threaded style pressure sensors are available with alloy metaland plastic threaded ends for small diameter piping systems.

Changes in the pipeline or vessel pressure are transmittedthrough the elastomer sleeve to the sensing fluid which operatesthe pressure instrument mechanism. The CVPS pressure sen-sor’s provides numerous advantages over commonly useddiaphragm type sensors.

The large sensing area results in consistently accurate pressurereadings, even with normally hard to gauge process fluids.Because of the high volume of sensing fluid available for dis-placement, compared to conventional diaphragm seals, multipleinstrument arrangements are possible and a variety of pressureinstruments can be used.

The CVPS pressure sensors can be used to protect gauges, sen-sors, transducers, and transmitters in a variety of pressure meas-urement and control applications.

Applications

• Pump Protection• Control Loop Feedback• Pump Head Control• Liquid Level Control and Indication• Remote and Local Pressure Indications

CVPSSERIES

Cla-Val Pressure Sensor

Threaded Style

Wafer Style

Sensor fitsinside bolt patternof mating flanges

StandardInstrumentsConnection

CVPSWAFERSTYLE

WD

I.D. matchesSch. 40 carbonsteel pipe

EE Unit has gasketsmolded in. NoAdditional Gasketrequired.

NPT ENDS

CVPS -THREADED

STYLE

FF

ID

CVPSSERIES

Pressure SensorThreaded StyleWafer Style

Wafer Style - CVPS-W

SizeD

11 1/2

22 1/2

34568

1012

LengthEE

1 7/81 7/81 7/81 7/81 7/82 1/82 1/42 1/42 1/4

2 13/163 1/2

DiameterOD

2 1/43 1/4

44 3/45 1/46 3/47 5/88 5/8

10 7/813 1/4

16

Threaded Style - CVPS-T

Inside DiameterID

1/2”

3/4”

1”

1 1/2”

2”

Outer DiameterOD

2 1/2”

3”

3”

4”

4 3/4”

Face to FaceFF

2 7/8”

3”

3 3/8”

3 3/8”

3 3/8”

CLA-VAL Copyright Cla-Val 2005 Printed in USA Specifications subject to change without notice. P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com

©E-CVPS (R-9/06