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 6135-01-156-4627
NSN 5960-00-387-6377
NSN 6320-01-147-9177
NSN 5965-01-462-6801
NSN 4140-00-117-9820
NSN 5935-00-732-1919
NSN 5930-00-096-9678
NSN 6110-01-211-6002
NSN 5950-00-612-6565
NSN 6135-01-434-6308
NSN 6650-01-336-2866
NSN 6620-01-535-6925