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 5910-01-041-7892
NSN 5990-00-932-3070
NSN 5996-01-588-0309
NSN 5999-01-431-5815
NSN 2925-00-859-1099
NSN 5895-01-413-8297
NSN 5835-00-847-7277
NSN 5960-01-234-0926
NSN 6130-01-381-7103
NSN 6220-01-284-3963
NSN 5920-00-824-1515
NSN 6645-01-201-3268