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 6110-01-014-7568
NSN 5855-01-357-6877
NSN 7035-01-341-4310
NSN 6220-00-838-6090
NSN 5985-01-429-3473
NSN 5950-01-068-4137
NSN 6320-01-215-1133
NSN 6320-01-123-6814
NSN 5915-00-933-5658
NSN 5925-00-887-4241
NSN 5855-01-260-7445
NSN 6320-01-457-2805