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 5945-01-493-8688
NSN 5930-01-215-8695
NSN 2925-00-869-6967
NSN 5930-01-442-7809
NSN 5925-01-406-3474
NSN 5990-00-079-5406
NSN 4140-00-552-7370
NSN 5920-01-445-6557
NSN 6135-01-526-0144
NSN 6145-01-437-8976
NSN 6150-01-542-1287
NSN 6240-01-502-7883