A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.
Classification: Check valves of copper having a pressure rating of 850 kpa or over
NSN 6135-01-226-4071
NSN 6645-00-434-8793
NSN 5935-01-035-5659
NSN 2925-00-660-8131
NSN 6110-00-188-9874
NSN 5996-01-514-1610
NSN 5925-00-897-0644
NSN 2925-00-943-2263
NSN 4140-01-449-9037
NSN 6150-01-038-0603
NSN 5835-01-564-3486
NSN 6145-01-491-0033