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 5998-01-461-8083
NSN 6130-01-503-7073
NSN 5920-01-314-5501
NSN 7035-01-408-8698
NSN 5950-01-187-2009
NSN 6685-01-092-8255
NSN 5950-01-313-6890
NSN 5945-01-341-1939
NSN 4140-00-518-7561
NSN 6620-00-658-6588
NSN 5835-01-313-7054
NSN 5910-00-102-4099