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 6145-00-635-3033
NSN 6645-00-394-8924
NSN 5905-00-163-0689
NSN 5920-00-555-1877
NSN 6620-00-635-7347
NSN 6610-01-151-1540
NSN 5996-01-186-5671
NSN 2925-01-197-7864
NSN 5945-01-212-7509
NSN 6145-01-171-5977
NSN 5996-01-598-9071
NSN 5835-01-290-9763