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.
Classification: Check valves of materials other than copper, iron or steel
NSN 7035-00-946-2642
NSN 6130-01-580-0809
NSN 5910-00-275-0827
NSN 5920-01-269-2604
NSN 5999-00-637-9685
NSN 5930-01-314-3824
NSN 5855-00-138-2386
NSN 6320-01-434-3049
NSN 5925-00-035-8469
NSN 2925-00-486-8640
NSN 6220-00-848-1561
NSN 6320-01-253-1028