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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.
CS Series Female National Pipe Thread (NPT) Piston Check Valves
Unit of Measure
1 2 

Item #

Inlet

Outlet

Seal

Cracking Pressure

Body Material

CS-2F-1#-EPDM-B N/A 1/8" Female NPT N/A 1/8" Female NPT N/A EPDM N/A 1 psi N/A Brass
CS-2F-1#-NP-B N/A 1/8" Female NPT N/A 1/8" Female NPT N/A Neoprene N/A 1 psi N/A Brass
CS-2F-1#-V-B N/A 1/8" Female NPT N/A 1/8" Female NPT N/A Viton® N/A 1 psi N/A Brass
CS-2F-1#-BU-NI N/A 1/8" Female NPT N/A 1/8" Female NPT N/A Buna-N N/A 1 psi N/A Nickel Plated
CS-2F-1#-EPDM-NI N/A 1/8" Female NPT N/A 1/8" Female NPT N/A EPDM N/A 1 psi N/A Nickel Plated
CS-2F-1#-NP-NI N/A 1/8" Female NPT N/A 1/8" Female NPT N/A Neoprene N/A 1 psi N/A Nickel Plated
CS-2F-1#-V-NI N/A 1/8" Female NPT N/A 1/8" Female NPT N/A Viton® N/A 1 psi N/A Nickel Plated
CS-2F-1#-BU-SS N/A 1/8" Female NPT N/A 1/8" Female NPT N/A Buna-N N/A 1 psi N/A Stainless Steel
CS-2F-1#-EPDM-SS N/A 1/8" Female NPT N/A 1/8" Female NPT N/A EPDM N/A 1 psi N/A Stainless Steel
CS-2F-1#-NP-SS N/A 1/8" Female NPT N/A 1/8" Female NPT N/A Neoprene N/A 1 psi N/A Stainless Steel
CS-2F-1#-V-SS N/A 1/8" Female NPT N/A 1/8" Female NPT N/A Viton® N/A 1 psi N/A Stainless Steel
Unit of Measure
1 2