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 5895-01-591-4585
NSN 6240-01-212-7053
NSN 5910-00-097-9546
NSN 6135-01-613-8043
NSN 5998-01-603-4529
NSN 5950-01-272-7179
NSN 5935-00-728-5803
NSN 4140-01-432-6434
NSN 5915-01-212-8664
NSN 5905-01-143-6274
NSN 5965-01-466-9932
NSN 6130-00-192-0006