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 5855-01-456-8667
NSN 5920-01-587-5188
NSN 5935-00-067-5901
NSN 5950-00-596-8102
NSN 6150-01-329-4917
NSN 6220-01-047-4060
NSN 5960-00-181-0423
NSN 5945-00-948-5849
NSN 6610-00-932-2465
NSN 6685-01-348-6688
NSN 6645-01-633-1852
NSN 5945-01-139-5179