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 6650-01-209-6318
NSN 6150-00-617-1580
NSN 2925-01-446-6976
NSN 5998-01-393-2272
NSN 5950-00-171-2894
NSN 5996-01-279-3764
NSN 6145-01-081-1073
NSN 2925-00-918-0859
NSN 2925-01-047-9189
NSN 5835-01-397-8801
NSN 5935-00-628-7568
NSN 5985-01-254-7845