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 5910-00-044-7175
NSN 5925-01-600-6303
NSN 6650-00-957-9985
NSN 5999-01-250-2424
NSN 5975-01-347-8956
NSN 6620-00-362-9460
NSN 2925-01-655-0562
NSN 5895-01-086-4743
NSN 5855-01-512-1926
NSN 5945-00-170-8632
NSN 5985-00-313-2436
NSN 6150-00-371-2758