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 6610-01-087-4701
NSN 5910-00-057-9666
NSN 6685-00-840-6317
NSN 5950-00-707-6107
NSN 6320-01-166-3602
NSN 6320-01-267-0586
NSN 5915-00-688-5875
NSN 5835-01-391-4556
NSN 6685-01-017-3046
NSN 6645-00-269-2764
NSN 5905-00-308-9901
NSN 6610-00-322-9686