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 6320-01-056-1164
NSN 4140-01-226-6944
NSN 6130-00-937-5282
NSN 6135-00-152-8729
NSN 6135-01-121-3225
NSN 6110-00-257-1446
NSN 5895-00-153-0086
NSN 2925-01-353-3928
NSN 6650-01-214-8856
NSN 5999-01-401-5322
NSN 4140-01-449-9037
NSN 5998-01-136-6342