U.S. Plastic Corporation Datasheets for Check Valves

Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves. 
Check Valves: Learn more

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Product Name Notes
1 1/2"cks cpvc diaphragm chk vlv-viton
1 1/2"cks cpvc diaphragm ck valve-epdm
1 1/2"cks pp diaphragm check valve-epdm
1 1/2"cks pp diaphragm check vlv-viton
1 1/2"cks pvc diaphrgm check valve-epdm
1 1/2"cks pvc diaphrgm chk valve-viton
150 psi at 73 degrees F water-non shock. For pump suction service. Ball Type Check. All plastic, removable screen. VitonĀ® ball seat and O-ring, NSF listed. Equally effective in checking...
2" Hayward WCV Series Wafer Check Valve w/EPDM Seals has an opening pressure of 1 PSI and a sealing pressure of 3 PSI. It is 1.80" wide and 2.25" overall...
2"cks cpvc diaphragm check valve-epdm
2"cks cpvc diaphragm check valve-viton
2"cks pp diaphragm check valve-epdm
2"cks pp diaphragm check valve-viton
2"cks pvc diaphrgm check valve-epdm
2"cks pvc diaphrgm chk valve-viton
2-1/2" Hayward WCV Series Wafer Check Valve w/EPDM Seals has an opening pressure of 1 PSI and a sealing pressure of 3 PSI. It is 2.30" wide and 6.00" overall...
3" Hayward WCV Series Wafer Check Valve w/EPDM Seals has an opening pressure of 1 PSI and a sealing pressure of 3 PSI. It is 2.40" wide and 6.50" overall...
3"cks cpvc diaphragm check valve-epdm
3"cks cpvc diaphragm check valve-viton
3"cks pp diaphragm check valve-epdm
3"cks pp diaphragm check valve-viton
3"cks pvc diaphrgm check valve-epdm
3"cks pvc diaphrgm chk valve-viton
4" Hayward WCV Series Wafer Check Valve w/EPDM Seals has an opening pressure of 1 PSI and a sealing pressure of 3 PSI. It is 2.90" wide and 9.00" overall...
4"cks cpvc diaphragm check valve-epdm
4"cks cpvc diaphragm check valve-viton
4"cks pp diaphragm check valve-epdm
4"cks pp diaphragm check valve-viton
4"cks pvc diaphrgm check valve-epdm
4"cks pvc diaphrgm chk valve-viton
6" Hayward WCV Series Wafer Check Valve w/EPDM Seals has an opening pressure of 1 PSI and a sealing pressure of 3 PSI. It is 3.00" wide and 11.13" overall...
8" Hayward WCV Series Wafer Check Valve w/EPDM Seals has an opening pressure of 1 PSI and a sealing pressure of 3 PSI. It is 4.93" wide and 13.38" overall...
Cepex PVC Full Port (*) True Union Ball Check Valves with Foot Valve Screens with either EPDM or FKM O-Rings. 1/2" - 2" rated @ 240 psi and supplied with...
Cepex PVC True Union Ball Check Valves with Foot Valve Screens with either EPDM or FKM O-Rings. 1/2" - 2" rated @ 240 psi and supplied with Socket/Threaded Combo End...
Cepex PVC Wafer Check Valve with EPDM. Sizes 4" to 8" rated at 150 psi @ 73F. Excellent flow characteristics. Lightweight. Can be operated in vertical or horizontal position. Complies...
Check valves are used to prevent the reversal of flow in a line. When open and under flow pressure, the checking mechanism will move freely in the media, offering very...
Diameter: 1.3". Length: 3.8". Working psi @ 77F: 100. Maximum Temperature: 180F. Note: Polypropylene is 20% glass filled.
Diameter: 1.3". Length: 3.8". Working psi @ 77F: 150 Inlet/100 Back. Maximum Temperature: 140F.
Diameter: 1.3". Length: 3.8". Working psi @ 77F: 150 inlet/100 back. Maximum Temperature: 180F.
Diameter: 1.6". Length: 4.1". Working psi @ 77F: 100. Maximum Temperature: 180F. Note: Polypropylene is 20% glass filled.
Diameter: 1.6". Length: 4.1". Working psi @ 77F: 150 Inlet/100 Back. Maximum Temperature: 140F.
Diameter: 1.6". Length: 4.1". Working psi @ 77F: 150 Inlet/100 Back. Maximum Temperature: 180F.
Diameter: 1.9". Length: 4.7". Working psi @ 77F: 100. Maximum Temperature: 180F. Note: Polypropylene is 20% glass filled.
Diameter: 1.9". Length: 4.7". Working psi @ 77F: 150 Inlet/100 Back. Maximum Temperature: 140F.
Diameter: 1.9". Length: 4.7". Working psi @ 77F: 150 Inlet/100 Back. Maximum Temperature: 180F.
Foot control valve for spray rinse tanks. Dispersement valve for filling containers. Quick acting valve for industrial air lines. Valves can be adapted for use on industrial rinse showers. All...
GF 561 & 562 valves feature a unique check cone element design that optimizes flow geometry and minimizes flow resistance and pressure loss. The valve closes when vertically mounted with...
Hayward PVC swing check valves have up to twice the temperature/pressure rating of other plastic swing check valves, and can replace metal valves in many applications. Compare the temperature/pressure rating...
Hayward true check ball check valves with FPM seals, NSF listed material and 150 PSI at 70 F., prevent reversal of flow in piping systems. They are ideal where backflow...
Hayward true check ball check valves with viton seals, NSF listed material and 150 PSI at 70 degrees F., prevent reversal of flow in piping systems. They are ideal where...
Maximum Operating Pressure 125 psi. Maximum Operating Temperature 140F. Seat Area Open Diameter .438. The 694 Series Check Valve covers a wide range of air and fluid applications. The 694...
Not spring loaded but the design insures free movement of the ball. Ball supported by a system of guide ribs to give full flow with minimum turbulence and chatter. Union...
Orifice Size: 3/16". Diameter: 1-1/8". Length: 2-1/16". Cv Factor: 0.50. Maximum psi @ 75F: 125. Maximum Temperature rating: 180F.
Orifice Size: 3/16". Diameter: 1-1/8". Length: 2-1/16". Cv Factor: 0.50. Maximum psi @ 75F: 140. Maximum Temperature rating: 140F.
Orifice Size: 5/16". Diameter: 1-1/2". Length: 2-5/8". Cv Factor: 1. Maximum psi @ 75F: 125. Maximum Temperature rating: 180F.
Orifice Size: 5/16". Diameter: 1-1/2". Length: 2-5/8". Cv Factor: 1. Maximum psi @ 75F: 140. Maximum Temperature rating: 140F.
Polypropylene and Kynar housing with Viton diaphragm. Will work with vacuum between 2 and 29 in. Hg. and pressures from 1 psi up to 150psi. .5 lb. cracking pressure on...
Polypropylene and Kynar housing with Viton diaphragm. Will work with vacuum between 2 and 29 in. Hg. and pressures from 1 psi up to 150psi.
Praher K6 thermoplastic wafer check valves are available in sizes 2" though 8" with maximum operating pressure of 150 psi at 72 F, non-shock. The valve does not require a...
Prevent reversal of flow. Similar in function to a ball check valve. Minimum of 2 lb. of positive back pressure seats the disc o-ring onto a precision machined seat. Hex...
Prevents back-flow in flexible tubing. Operates in any position, but works best at 10" to 28" Hg vacuum. Made of polyethylene. #64001 has polyethylene disk; #64004 has neoprene disk. Not...
The 695 series is a general purpose check valve that operates in any position, horizontal or vertical. A great low-resistance, high flow check valve where space is limited. Available in...
These polypropylene check valves have a one piece construction. Valves are rated to 150 PSI maximum. They have a 1-2 PSI spring. Polypropylene is glass filled and the gasket materials...
This 2-1/2" swing check valve in the open position allows for unobstructed continuous flow with minimal head loss. Swing check valves are designed for horizontal installation. All check valves must...
This 3" swing check valve in the open position allows for unobstructed continuous flow with minimal head loss. Swing check valves are designed for horizontal installation. All check valves must...
This 4" swing check valve in the open position allows for unobstructed continuous flow with minimal head loss. Swing check valves are designed for horizontal installation. All check valves must...
This valve has a 1/4"MNPT inlet and a 1/4"MNPT outlet. Valve body is .56" diameter and 1.50" long. 1 PSI cracking pressure.
Use this with a 18294 or 18295 PVC Check Valve to convert to a foot valve. Convert to a foot valve by replacing inlet end connection on valve with this...
Valves are very easy to maintain by allowing for easy removal from a piping system without breaking down the piping connections. Just unscrew the assembly nuts and lift the valve...

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