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 5996-01-299-6838
NSN 7035-01-232-2657
NSN 5960-00-584-4553
NSN 4140-01-346-9293
NSN 6620-01-147-0441
NSN 5925-01-091-4577
NSN 6150-01-418-9792
NSN 6135-01-100-3593
NSN 6645-00-081-4298
NSN 6145-00-621-0225
NSN 5855-01-643-1115
NSN 6645-00-233-4286