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 5965-00-090-7451
NSN 5910-01-239-4630
NSN 5925-00-980-0159
NSN 5930-00-255-9351
NSN 6150-01-326-1531
NSN 5905-01-185-4150
NSN 5945-01-346-7836
NSN 6220-01-247-2290
NSN 5990-01-571-7468
NSN 5975-00-814-9263
NSN 5930-00-102-6165
NSN 6145-01-142-5732