CS Series 1/4 Inch (in) Size Female National Pipe Thread (NPT) Inlet Piston Check Valves On Industrial Specialties Mfg., Inc.

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.

Item #	Inlet	Outlet	Seal	Cracking Pressure	Body Material
CS-4F-1#-EPDM-B	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A EPDM	N/A 1 psi	N/A Brass
CS-4F-1#-NP-B	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Neoprene	N/A 1 psi	N/A Brass
CS-4F-1#-V-B	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Viton®	N/A 1 psi	N/A Brass
CS-4F-1#-BU-NI	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Buna-N	N/A 1 psi	N/A Nickel Plated
CS-4F-1#-EPDM-NI	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A EPDM	N/A 1 psi	N/A Nickel Plated
CS-4F-1#-NP-NI	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Neoprene	N/A 1 psi	N/A Nickel Plated
CS-4F-1#-V-NI	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Viton®	N/A 1 psi	N/A Nickel Plated
CS-4F-1#-BU-SS	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Buna-N	N/A 1 psi	N/A Stainless Steel
CS-4F-1#-EPDM-SS	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A EPDM	N/A 1 psi	N/A Stainless Steel
CS-4F-1#-NP-SS	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Neoprene	N/A 1 psi	N/A Stainless Steel
CS-4F-1#-V-SS	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Viton®	N/A 1 psi	N/A Stainless Steel
CS-4F-3#-BU-B	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Buna-N	N/A 3 psi	N/A Brass
CS-4F-3#-EPDM-B	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A EPDM	N/A 3 psi	N/A Brass
CS-4F-3#-NP-B	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Neoprene	N/A 3 psi	N/A Brass
CS-4F-3#-V-B	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Viton®	N/A 3 psi	N/A Brass
CS-4F-3#-BU-NI	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Buna-N	N/A 3 psi	N/A Nickel Plated
CS-4F-3#-EPDM-NI	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A EPDM	N/A 3 psi	N/A Nickel Plated
CS-4F-3#-NP-NI	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Neoprene	N/A 3 psi	N/A Nickel Plated
CS-4F-3#-V-NI	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Viton®	N/A 3 psi	N/A Nickel Plated
CS-4F-3#-BU-SS	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Buna-N	N/A 3 psi	N/A Stainless Steel
CS-4F-3#-EPDM-SS	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A EPDM	N/A 3 psi	N/A Stainless Steel
CS-4F-3#-NP-SS	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Neoprene	N/A 3 psi	N/A Stainless Steel
CS-4F-3#-V-SS	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Viton®	N/A 3 psi	N/A Stainless Steel
CS-4F-5#-BU-B	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A Buna-N	N/A 5 psi	N/A Brass
CS-4F-5#-EPDM-B	N/A 1/4" Female NPT	N/A 1/4" Female NPT	N/A EPDM	N/A 5 psi	N/A Brass

CS-4F-1#-EPDM-B

N/A 1/4" Female NPT

N/A EPDM

N/A 1 psi

N/A Brass

CS-4F-1#-NP-B

N/A 1/4" Female NPT

N/A Neoprene

N/A 1 psi

N/A Brass

CS-4F-1#-V-B

N/A 1/4" Female NPT

N/A Viton®

N/A 1 psi

N/A Brass

CS-4F-1#-BU-NI

N/A 1/4" Female NPT

N/A Buna-N

N/A 1 psi

N/A Nickel Plated

CS-4F-1#-EPDM-NI

N/A 1/4" Female NPT

N/A EPDM

N/A 1 psi

N/A Nickel Plated

CS-4F-1#-NP-NI

N/A 1/4" Female NPT

N/A Neoprene

N/A 1 psi

N/A Nickel Plated

CS-4F-1#-V-NI

N/A 1/4" Female NPT

N/A Viton®

N/A 1 psi

N/A Nickel Plated

CS-4F-1#-BU-SS

N/A 1/4" Female NPT

N/A Buna-N

N/A 1 psi

N/A Stainless Steel

CS-4F-1#-EPDM-SS

N/A 1/4" Female NPT

N/A EPDM

N/A 1 psi

N/A Stainless Steel

CS-4F-1#-NP-SS

N/A 1/4" Female NPT

N/A Neoprene

N/A 1 psi

N/A Stainless Steel

CS-4F-1#-V-SS

N/A 1/4" Female NPT

N/A Viton®

N/A 1 psi

N/A Stainless Steel

CS-4F-3#-BU-B

N/A 1/4" Female NPT

N/A Buna-N

N/A 3 psi

N/A Brass

CS-4F-3#-EPDM-B

N/A 1/4" Female NPT

N/A EPDM

N/A 3 psi

N/A Brass

CS-4F-3#-NP-B

N/A 1/4" Female NPT

N/A Neoprene

N/A 3 psi

N/A Brass

CS-4F-3#-V-B

N/A 1/4" Female NPT

N/A Viton®

N/A 3 psi

N/A Brass

CS-4F-3#-BU-NI

N/A 1/4" Female NPT

N/A Buna-N

N/A 3 psi

N/A Nickel Plated

CS-4F-3#-EPDM-NI

N/A 1/4" Female NPT

N/A EPDM

N/A 3 psi

N/A Nickel Plated

CS-4F-3#-NP-NI

N/A 1/4" Female NPT

N/A Neoprene

N/A 3 psi

N/A Nickel Plated

CS-4F-3#-V-NI

N/A 1/4" Female NPT

N/A Viton®

N/A 3 psi

N/A Nickel Plated

CS-4F-3#-BU-SS

N/A 1/4" Female NPT

N/A Buna-N

N/A 3 psi

N/A Stainless Steel

CS-4F-3#-EPDM-SS

N/A 1/4" Female NPT

N/A EPDM

N/A 3 psi

N/A Stainless Steel

CS-4F-3#-NP-SS

N/A 1/4" Female NPT

N/A Neoprene

N/A 3 psi

N/A Stainless Steel

CS-4F-3#-V-SS

N/A 1/4" Female NPT

N/A Viton®

N/A 3 psi

N/A Stainless Steel

CS-4F-5#-BU-B

N/A 1/4" Female NPT

N/A Buna-N

N/A 5 psi

N/A Brass

CS-4F-5#-EPDM-B

N/A 1/4" Female NPT

N/A EPDM

N/A 5 psi

N/A Brass

Item #

Inlet

Outlet

Seal

Cracking Pressure

Body Material