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.
NSN 6240-00-863-6105
NSN 6620-01-012-2852
NSN 5925-00-387-3956
NSN 7035-01-523-7285
NSN 2925-00-323-5048
NSN 5920-01-227-1332
NSN 6145-01-605-3228
NSN 5945-01-374-3326
NSN 5835-01-528-7454
NSN 6150-01-206-3609
NSN 5965-01-140-9446
NSN 5925-01-312-4690