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 6135-00-080-9176
NSN 6110-00-259-8114
NSN 6645-01-123-3056
NSN 5945-01-491-5749
NSN 6650-00-641-6139
NSN 5950-00-051-2301
NSN 5985-01-195-3102
NSN 5855-00-532-0025
NSN 6130-01-365-8017
NSN 5930-01-027-8370
NSN 5990-01-462-1617
NSN 5920-01-352-0880