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 5945-01-197-1953
NSN 6645-01-452-3354
NSN 6130-01-152-1189
NSN 6650-01-263-5412
NSN 6220-01-055-7423
NSN 5925-01-426-6923
NSN 6650-01-460-5837
NSN 6105-01-119-3514
NSN 6135-00-269-5843
NSN 5920-01-597-0121
NSN 4140-01-326-4062
NSN 6650-01-472-3955