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 6685-01-648-2099
NSN 6620-01-299-8949
NSN 5975-00-056-3984
NSN 6105-01-083-2761
NSN 5915-01-210-9871
NSN 6610-00-585-9160
NSN 5835-01-399-5820
NSN 5910-01-172-4269
NSN 5935-01-034-4877
NSN 5945-01-094-3075
NSN 5915-01-535-6472
NSN 6610-00-601-2313