Female x Female NPT check valve. Thread sizes include 1/8", 1/4", 3/8", 1/2" and 3/4". 302 Stainless Steel spring. Brass bodies have a Beryllium Copper Retainer. 316 Stainless Steel Bodies have a 15-7 Stainless Retainer. Maximum operating pressure is 500 psi.
| Items |
 CS-4F-BU-B CS Series 1/4 Inch (in) Size Female National Pipe Thread (NPT) Inlet Buna-N Seal Piston Check Valve |
CS-4F-EPDM-B CS Series 1/4 Inch (in) Size Female National Pipe Thread (NPT) Inlet Ethylene Propylene Diene Monomer (EPDM) Seal Piston Check Valve |
CS-4F-NP-B CS Series 1/4 Inch (in) Size Female National Pipe Thread (NPT) Inlet Neoprene Seal Piston Check Valve |
CS-4F-V-B CS Series 1/4 Inch (in) Size Female National Pipe Thread (NPT) Inlet Viton® Seal Piston Check Valve |
CS-4F-BU-NI CS Series 1/4 Inch (in) Size Female National Pipe Thread (NPT) Inlet Buna-N Seal Piston Check Valve |
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| Description | Female x Female NPT check valve. Thread sizes include 1/8", 1/4", 3/8", 1/2" and 3/4". 302 Stainless Steel spring. Brass bodies have a Beryllium Copper Retainer. 316 Stainless Steel Bodies have a 15-7 Stainless Retainer. Maximum operating pressure is 500 psi. | |||||||||
| Inlet | 1/4" Female NPT | |||||||||
| Outlet | 1/4" Female NPT | |||||||||
| Seal | Buna-N | EPDM | Neoprene | Viton® | Buna-N | |||||
| Spring | No | |||||||||
| Cracking Pressure | ||||||||||
| Body Material | Brass | Brass | Brass | Brass | Nickel Plated | |||||
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