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 6240-01-434-9656
NSN 2925-01-544-4880
NSN 5975-01-525-9833
NSN 6645-01-082-0518
NSN 5905-01-521-3839
NSN 5965-01-154-6319
NSN 6220-00-171-8638
NSN 5960-01-414-8918
NSN 5920-00-448-5369
NSN 6645-01-622-1830
NSN 6135-00-422-3967
NSN 7035-01-386-3004