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 5835-01-380-0448
NSN 5835-01-051-7584
NSN 6110-01-485-0276
NSN 5990-01-591-8797
NSN 6645-01-476-8013
NSN 6620-00-916-3134
NSN 5990-01-501-9094
NSN 7035-01-365-9610
NSN 7035-01-003-9142
NSN 5930-01-097-8694
NSN 5999-01-144-6201
NSN 5925-01-580-0279