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 5925-00-834-0272
NSN 5835-01-051-7584
NSN 5920-01-652-2579
NSN 6220-01-523-7043
NSN 6610-01-485-4598
NSN 5930-00-826-3348
NSN 4140-00-824-3285
NSN 6145-01-274-3354
NSN 5935-01-602-1851
NSN 5895-00-948-3808
NSN 6610-00-580-5997
NSN 5895-00-218-1355