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 5910-01-451-4292
NSN 5910-01-490-7297
NSN 5905-01-465-9039
NSN 6320-00-823-2015
NSN 5985-00-965-9413
NSN 5945-01-576-1689
NSN 5965-00-246-5612
NSN 5835-01-303-6563
NSN 6130-01-575-4175
NSN 2925-00-623-3103
NSN 6110-00-257-1446
NSN 6150-01-052-8096