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 5975-01-049-7113
NSN 6135-01-577-5532
NSN 5996-01-521-4007
NSN 6105-00-871-2318
NSN 6240-00-770-3372
NSN 7035-01-116-6223
NSN 5935-00-687-2335
NSN 7035-01-633-9537
NSN 6240-00-011-5273
NSN 6150-00-737-2400
NSN 5925-00-394-6894
NSN 2925-01-510-9378