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 6110-01-387-1749
NSN 2925-01-384-4139
NSN 6150-01-191-2911
NSN 5975-01-496-5278
NSN 6130-00-218-1363
NSN 5920-01-047-7904
NSN 5935-01-229-4692
NSN 4140-01-037-1867
NSN 5998-00-815-1896
NSN 5930-00-832-5315
NSN 5998-01-306-3260
NSN 5985-01-616-9320