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 5945-01-520-7495
NSN 6650-00-146-3282
NSN 6320-00-405-2348
NSN 6145-01-365-7801
NSN 6240-01-188-1413
NSN 5945-01-235-5616
NSN 5935-00-161-1649
NSN 6610-01-447-2560
NSN 5930-00-265-6296
NSN 6320-01-607-0347
NSN 6145-00-989-4252
NSN 4140-01-476-7871