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 6150-01-536-8079
NSN 6650-01-562-5883
NSN 7035-01-306-5226
NSN 6320-01-185-3857
NSN 5925-01-415-4809
NSN 7035-01-581-2664
NSN 5835-01-359-2575
NSN 6620-00-780-7786
NSN 5960-01-288-8910
NSN 6130-01-463-2874
NSN 6620-01-550-4606
NSN 6135-00-165-3756