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 6240-01-019-1997
NSN 5905-00-883-5007
NSN 5945-01-127-7623
NSN 6110-00-465-2375
NSN 6685-01-400-4192
NSN 5999-01-322-2365
NSN 2925-01-218-5556
NSN 6135-01-230-4399
NSN 5999-01-266-5785
NSN 5915-01-258-5799
NSN 5996-01-207-0804
NSN 5950-00-964-8678