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 5950-01-243-0835
NSN 6220-01-275-3771
NSN 4140-01-449-2131
NSN 5960-01-580-6360
NSN 5950-00-529-6871
NSN 5996-01-458-3885
NSN 6150-01-540-3862
NSN 5930-01-430-2309
NSN 5985-00-702-3818
NSN 5945-00-142-0005
NSN 5965-00-899-0453
NSN 5930-00-791-3568