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Check Valves


Specialty Gases and Equipment

(514) 956-7503

Check Valves
Model 400 Series 3000 psig

Description
The Model 400 Series Check Valves prevent the reverse flow of gas and thus keep foreign matter out of gas lines, regulators and cylinders ahead of the valve. The valves are spring loaded with a positive stop to prevent the over-stressing of the spring by sudden surges in gas pressure. An "O'' ring at the valve seat insures quick and efficient sealing.
The valve has a one-piece body and is easily disassembled for cleaning. It is designed for pressures up to 3000 psig; cracking pressure is approximately 1 psig. The flow capacity is 100 SCFH air at 10 psig inlet pressure. Connections are 1/4" NPT female. O-ring is replaceable.

Ordering Information
Model Materials
400V Brass, Viton® O-ring, SS spring
401E 316 SS, EPR O-ring, SS spring
401N 316 SS, Neoprene O-ring, SS. spring
401V 316 SS Viton® O-ring, SS spring
402E Monel®, EPR O-ring, Monel® spring
402V Monel®, Viton® O-ring, Monel® spring
Shipping Weight: 1 lb
Please order Matheson Technical Bulletin TB-172 for more information.
 

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This page was last updated December 05, 2003