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 steel
NSN 2925-01-487-0886
NSN 6650-01-089-8890
NSN 5990-00-816-9289
NSN 5925-01-630-5701
NSN 5910-01-219-4161
NSN 5930-01-087-8673
NSN 5998-01-192-3272
NSN 5855-00-316-5050
NSN 5935-00-782-1953
NSN 5999-01-571-7626
NSN 6645-01-398-2505
NSN 6110-01-144-2832