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.
Classification: Check valves of materials other than copper, iron or steel
NSN 5960-01-573-6483
NSN 5960-01-170-4057
NSN 6240-01-613-2503
NSN 5905-00-290-8098
NSN 6105-01-157-3033
NSN 5965-01-343-6983
NSN 5915-01-213-2113
NSN 6685-01-425-5966
NSN 6105-01-565-1443
NSN 5950-01-167-8549
NSN 2925-01-346-9522
NSN 5996-01-608-1254