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 5935-01-525-9421
NSN 5930-01-504-0991
NSN 6650-01-022-0078
NSN 6105-01-338-6249
NSN 5910-00-601-6363
NSN 5950-01-013-5115
NSN 5960-00-617-9312
NSN 6685-00-175-0669
NSN 5998-01-514-2232
NSN 5930-00-937-1531
NSN 2925-01-097-0903
NSN 5960-01-328-8248