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 6150-00-227-2424
NSN 5950-01-149-8058
NSN 5975-00-660-5962
NSN 6645-01-432-0052
NSN 5945-00-706-8172
NSN 6240-01-177-9361
NSN 6110-01-615-9705
NSN 5935-01-348-7472
NSN 6145-01-255-0270
NSN 6645-01-603-9331
NSN 6620-01-065-8265
NSN 5999-01-225-1982