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 6685-00-443-5650
NSN 5990-00-200-5232
NSN 6105-01-411-5970
NSN 6145-00-942-0981
NSN 6110-01-604-0281
NSN 5915-01-633-9845
NSN 5935-01-120-4651
NSN 5935-00-403-5232
NSN 5965-01-299-0160
NSN 4140-00-601-8921
NSN 5905-01-169-0430
NSN 6320-01-307-0467