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 6150-01-265-1142
NSN 6320-01-370-4218
NSN 5999-01-146-4374
NSN 5925-00-221-8639
NSN 2925-01-266-5229
NSN 5915-00-850-5604
NSN 7035-00-205-1932
NSN 5910-00-911-2755
NSN 6645-01-381-6084
NSN 6320-01-445-5893
NSN 2925-00-021-9580
NSN 6150-00-278-7070