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 6135-01-383-1910
NSN 6105-01-303-5856
NSN 5985-01-151-4220
NSN 2925-01-340-5504
NSN 5985-01-316-0537
NSN 6610-00-034-3709
NSN 5910-01-201-8086
NSN 6145-00-683-5353
NSN 5905-01-569-2954
NSN 6145-00-117-4806
NSN 2925-00-964-7128
NSN 5998-01-594-2230