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.
NSN 5975-01-483-0730
NSN 6220-00-706-7477
NSN 6610-01-105-9520
NSN 6620-00-734-7746
NSN 6645-00-025-4771
NSN 6110-01-074-0835
NSN 6220-01-599-1993
NSN 5835-01-552-3153
NSN 5975-01-065-1796
NSN 5950-01-370-4023
NSN 6645-01-322-5644
NSN 2925-01-199-7394