FNPT, High Pressure Check Valve - Instrument Valve

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Check Valves are used to prevent the back flow of fluids and gases in nearly every industry. GVC Direct's High Pressure Check Valves are an excellent choice for all high-purity, corrosive, and critical fluids and gasses. The valve includes an O-Ring Seat to provide leak tight-shut-off and a back-stopped poppet design to prevent spring over travel. Check Valves are available with a wide range of crack pressures from 1/3 psi to 25 psi and with a wide choice of Cv from 0.67 to 4.7. A wide variety of Imperial and Metric end connections are available. Be sure to contact us for any custom valve requirements or accessories.

Charts Materials & Specs Spares & Related Applications Cross Reference

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SKU	A	B	Crack Pressure	Cv
118-127868	54.1 mm	11/16"	1/3 psig	0.67
118-127869	54.1 mm	11/16"	1 psig	0.67
118-127870	54.1 mm	11/16"	3 psig	0.67
118-127871	54.1 mm	11/16"	5 psig	0.67
118-127872	54.1 mm	11/16"	50 psig	0.67
118-127873	64.8 mm	1"	1/3 psig	1.8
118-127874	64.8 mm	1"	1 psig	1.8
118-127875	64.8 mm	1"	50 psig	1.8
118-127876	83.6 mm	1"	1/3 psig	1.8
118-127877	83.6 mm	1"	1 psig	1.8
118-127878	83.6 mm	1"	5 psig	1.8
118-127879	83.6 mm	1"	10 psig	1.8
118-127880	83.6 mm	1"	50 psig	1.8
118-127881	90.1 mm	1 5/8"	1/3 psig	4.7
118-127882	90.1 mm	1 5/8"	1 psig	4.7
118-127883	90.1 mm	1 5/8"	10 psig	4.7
118-127884	90.1 mm	1 5/8"	25 psig	4.7
118-127885	90.1 mm	1 5/8"	50 psig	4.7
118-127886	97.3 mm	1 5/8"	1/3 psig	4.7
118-127887	97.3 mm	1 5/8"	1 psig	4.7
118-127888	97.3 mm	1 5/8"	5 psig	4.7
118-127889	97.3 mm	1 5/8"	10 psig	4.7
118-127890	97.3 mm	1 5/8"	50 psig	4.7
SKU	A	B	Crack Pressure	Cv
118-127901	61.0 mm	3/4"	3-50 psig	0.35
118-127902	61.0 mm	3/4"	50-150 psig	0.35
118-127903	61.0 mm	3/4"	150-350 psig	0.35
118-127904	61.0 mm	3/4"	350-600 psig	0.35

Flow Rates

Materials & Specifications

Body: 316L SS, Viton® O-Ring (Standard)
Pressure Ratings up to 6,000 psig @ 70°F
Temperature Ratings from -10°F to 405°F

Meets the following Requirements
Certificates of Conformance available upon request at time of order.

Spares & Related Items

Related Items
Compression Fittings

Typical Applications

Compressed Air
Nitrogen
Pure and Clean Steam

Industry Cross Reference

700 Type

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