Clean for oxygenservice per aro of buffalo inc ps203
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
Classification: Check valves of copper having a pressure rating of 850 kpa or over
NSN 5945-01-592-2115
NSN 4140-01-170-3359
NSN 6685-01-194-1324
NSN 5895-00-466-3100
NSN 5996-01-439-6047
NSN 5930-00-268-0323
NSN 5998-00-155-7737
NSN 5998-01-232-0789
NSN 6145-00-946-2033
NSN 5915-01-029-2665
NSN 5915-00-355-9973
NSN 6610-00-667-6832