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 6650-01-334-9410
NSN 5915-01-463-5686
NSN 6220-01-427-2333
NSN 2925-00-456-7627
NSN 5920-01-435-5091
NSN 5950-00-168-4094
NSN 2925-01-368-5773
NSN 6685-01-533-0017
NSN 5985-00-708-2193
NSN 5960-01-424-0590
NSN 6240-01-034-5596
NSN 5950-01-492-5919