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 5975-01-537-6325
NSN 5960-01-390-7236
NSN 6620-01-222-2136
NSN 6610-01-098-7557
NSN 6145-01-100-7104
NSN 6620-01-593-0817
NSN 6105-01-460-5496
NSN 5925-01-411-6028
NSN 5996-00-014-5822
NSN 6105-00-153-7967
NSN 6220-00-804-0131
NSN 5925-00-214-0461