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 5950-01-363-1452
NSN 5835-01-355-0308
NSN 5985-00-323-1317
NSN 5935-00-826-6960
NSN 5930-00-119-3393
NSN 6135-01-349-6285
NSN 5855-01-511-8946
NSN 5915-00-233-7592
NSN 5935-00-862-5158
NSN 5985-01-588-3405
NSN 6650-00-981-9501
NSN 5960-00-884-1983