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 6135-01-591-1250
NSN 5945-01-212-0942
NSN 5960-00-083-2793
NSN 5960-01-589-6846
NSN 5935-01-517-8191
NSN 6220-00-712-1779
NSN 6240-00-076-2752
NSN 5985-01-197-6999
NSN 6135-00-477-8847
NSN 5998-01-242-6212
NSN 6685-01-461-2484
NSN 5855-00-256-5562