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: [email protected] • Website cla-val.com
©E-CVPS (R-9/06