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 steel
NSN 5985-01-137-9186
NSN 5998-01-460-9741
NSN 5835-00-155-1379
NSN 5835-01-013-9321
NSN 5935-01-170-7882
NSN 5975-00-521-7598
NSN 5920-01-399-4404
NSN 6130-01-238-9654
NSN 5990-01-376-8930
NSN 5915-01-251-4986
NSN 5945-01-498-0790
NSN 5835-01-654-4570