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 6620-01-094-3925
NSN 5998-01-065-6754
NSN 6685-01-452-4838
NSN 5895-00-501-8174
NSN 5920-01-607-0244
NSN 5905-00-222-7653
NSN 6110-01-439-1365
NSN 5835-01-632-6627
NSN 6240-01-054-0067
NSN 6130-00-261-4942
NSN 5920-00-362-1376
NSN 5930-01-062-1411