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 7035-01-218-4233
NSN 5930-00-249-8964
NSN 5925-00-169-4513
NSN 6650-00-078-5773
NSN 6685-01-167-8612
NSN 6320-01-501-7935
NSN 4140-01-364-9797
NSN 5935-00-049-1357
NSN 6240-01-028-2971
NSN 5985-00-632-7826
NSN 5835-00-143-4153
NSN 5985-01-424-4394