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 5925-00-702-7367
NSN 5925-01-249-9066
NSN 5996-01-604-6016
NSN 5925-01-078-6673
NSN 5960-01-285-2152
NSN 5935-01-243-9213
NSN 5915-01-597-5817
NSN 5950-01-317-4093
NSN 6610-01-576-8955
NSN 5985-01-454-8387
NSN 6645-01-445-5235
NSN 5945-00-828-1236