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 5998-01-445-9316
NSN 6145-01-437-5505
NSN 6685-01-660-0672
NSN 5895-01-452-4158
NSN 6220-00-728-9536
NSN 2925-00-623-3103
NSN 6645-01-041-3533
NSN 5915-00-187-7561
NSN 5960-01-020-0719
NSN 5950-01-150-7212
NSN 5950-00-261-8234
NSN 5930-00-755-3673