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 5960-01-525-1690
NSN 6620-01-116-3983
NSN 6650-00-056-1581
NSN 5835-01-399-5820
NSN 6610-00-186-9180
NSN 6650-00-139-8345
NSN 6135-00-998-5884
NSN 6130-01-165-2130
NSN 5920-00-515-3617
NSN 6645-01-408-4576
NSN 5965-01-285-2133
NSN 5915-01-571-7341