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 6220-01-577-7014
NSN 6620-01-220-8036
NSN 6620-00-243-1759
NSN 7035-00-126-1899
NSN 6130-01-651-9082
NSN 6240-01-407-5690
NSN 5975-00-588-0387
NSN 2925-00-455-2367
NSN 5998-00-566-0936
NSN 5996-01-243-1711
NSN 6135-01-278-9717
NSN 4140-01-565-3744