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 5999-01-141-3790
NSN 5990-01-516-9665
NSN 6240-00-248-6517
NSN 5998-01-548-0857
NSN 5960-00-145-9361
NSN 5920-01-463-2530
NSN 6645-00-358-7379
NSN 5855-01-470-6492
NSN 5920-01-632-6144
NSN 5985-01-468-1092
NSN 6240-01-278-3247
NSN 6650-01-350-5578