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 5998-00-132-1361
NSN 7035-01-391-9858
NSN 5925-01-096-5892
NSN 6620-00-479-9425
NSN 6650-01-515-9396
NSN 6650-01-421-2762
NSN 6135-00-299-6918
NSN 5990-01-132-4156
NSN 5915-01-085-7540
NSN 6130-01-434-6091
NSN 6320-00-149-7570
NSN 6650-01-110-2142