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 5998-01-069-2172
NSN 6320-00-242-3300
NSN 5895-01-463-8513
NSN 2925-01-472-4423
NSN 5905-01-534-3754
NSN 5920-01-050-6557
NSN 6610-00-402-6856
NSN 5925-00-910-4932
NSN 5999-01-367-2616
NSN 6645-00-313-2324
NSN 5996-01-388-1275
NSN 6145-01-422-6059