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 6145-00-360-7760
NSN 6150-01-153-2796
NSN 5835-01-507-0731
NSN 5965-00-665-2156
NSN 5990-01-411-5930
NSN 5920-01-026-2559
NSN 5925-01-456-6944
NSN 6135-00-866-2311
NSN 6105-01-118-7004
NSN 2925-00-404-6461
NSN 5935-01-307-7096
NSN 5990-00-726-3516