A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. In the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also valve, stop-check and valve, stop-lift-check.
Classification: Check valves of materials other than copper, iron or steel
NSN 6320-01-216-1678
NSN 5935-01-415-0887
NSN 5985-01-415-2225
NSN 6240-01-509-8783
NSN 2925-01-624-5647
NSN 5999-01-316-8169
NSN 5905-01-467-9990
NSN 5985-01-646-7502
NSN 6650-01-412-1040
NSN 5935-00-197-9463
NSN 5998-01-149-0099
NSN 6145-01-408-6509