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 5925-00-070-5011
NSN 5855-00-944-0949
NSN 5935-01-147-1673
NSN 7035-00-476-7178
NSN 5990-01-376-4376
NSN 4140-01-174-6309
NSN 5835-01-128-9331
NSN 6150-01-508-9522
NSN 6110-00-870-2698
NSN 6320-00-857-4073
NSN 5960-01-303-5884
NSN 6240-01-224-4125