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 5950-00-124-4047
NSN 5935-00-058-1127
NSN 6220-01-394-5263
NSN 5915-00-959-5454
NSN 5999-01-359-4934
NSN 5855-01-351-8909
NSN 6110-01-116-3397
NSN 5950-01-565-5031
NSN 7035-00-064-7008
NSN 6150-01-381-1493
NSN 6620-01-169-6699
NSN 5998-01-181-7088