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 5925-01-359-4814
NSN 6135-01-523-0370
NSN 5915-01-455-0002
NSN 6145-00-378-3836
NSN 5999-01-535-3312
NSN 6320-00-483-0451
NSN 5950-01-506-6158
NSN 6130-00-959-5800
NSN 5935-01-506-9135
NSN 2925-01-387-0870
NSN 5996-01-322-9007
NSN 6610-01-509-9913