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 6240-01-597-1941
NSN 4140-01-478-3897
NSN 6685-00-164-7014
NSN 5965-00-917-0455
NSN 5998-00-807-4486
NSN 5925-01-120-3837
NSN 2925-00-614-1758
NSN 5935-01-359-6173
NSN 5910-01-387-0467
NSN 6110-01-185-5040
NSN 6145-01-154-4373
NSN 5975-01-598-2155