Used on fire fighting equipment
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 5910-00-439-0746
NSN 4140-00-849-8371
NSN 6110-01-519-2282
NSN 5910-01-290-4421
NSN 6610-01-660-3966
NSN 5915-01-200-8283
NSN 5905-00-807-6297
NSN 4140-01-246-4267
NSN 6130-01-536-8693
NSN 6685-01-207-1412
NSN 5998-00-988-3111
NSN 6110-00-170-6520