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 5835-01-363-4527
NSN 5920-01-491-1509
NSN 5855-01-469-2798
NSN 6685-00-871-5146
NSN 5915-01-081-5089
NSN 5998-00-015-3703
NSN 5920-01-650-4788
NSN 6610-01-527-8006
NSN 5925-01-513-8081
NSN 5999-01-069-3528
NSN 6220-01-504-9892
NSN 5990-01-101-5097