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 5996-01-446-8198
NSN 5835-01-552-7135
NSN 5975-01-532-9121
NSN 6240-01-091-5185
NSN 4140-01-541-7030
NSN 6685-01-235-9173
NSN 5835-00-725-2087
NSN 5975-01-530-6456
NSN 7035-01-501-5938
NSN 5960-00-496-6473
NSN 5996-00-870-2190
NSN 6145-01-245-3869