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 6650-01-588-5458
NSN 6135-00-574-1204
NSN 6220-01-518-5203
NSN 2925-01-604-8984
NSN 6145-01-263-3902
NSN 5999-01-551-4003
NSN 5935-00-397-9131
NSN 5960-01-271-8107
NSN 4140-00-294-3654
NSN 6145-00-100-4358
NSN 5965-01-200-6613
NSN 6645-00-163-4624