A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second 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. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.
Classification: Check valves of copper having a pressure rating of 850 kpa or over
NSN 6320-01-006-6138
NSN 6220-01-359-1593
NSN 5855-01-224-7975
NSN 5930-01-576-3670
NSN 6145-00-141-8095
NSN 5965-00-007-7863
NSN 6650-00-707-1417
NSN 5999-01-095-4786
NSN 4140-00-732-9427
NSN 5965-00-099-0698
NSN 6620-01-215-0470
NSN 5930-00-661-0998