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 6320-01-312-0964
NSN 5855-00-165-3093
NSN 5965-00-849-1313
NSN 5925-01-125-5795
NSN 6620-00-538-8746
NSN 5935-01-553-2024
NSN 5895-00-242-5095
NSN 6145-00-826-2932
NSN 6135-00-027-3914
NSN 6620-00-936-3463
NSN 6220-01-169-6086
NSN 5975-00-818-3819