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 6110-00-419-4475
NSN 6110-01-328-8292
NSN 5920-01-299-4784
NSN 7035-01-445-3563
NSN 6240-01-443-0519
NSN 5895-00-860-8153
NSN 5996-01-151-2452
NSN 6685-00-863-1876
NSN 6610-00-253-7676
NSN 5965-01-467-7974
NSN 6240-00-060-7298
NSN 5925-00-321-8040