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 6220-00-040-2094
NSN 5960-01-564-5044
NSN 6645-01-451-7933
NSN 6320-00-036-3688
NSN 6220-00-409-8978
NSN 5915-01-466-6108
NSN 5905-01-556-3196
NSN 6650-01-060-0326
NSN 5925-00-437-2854
NSN 6220-01-521-1330
NSN 6240-00-156-1607
NSN 5935-00-498-8780