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 6650-01-160-5058
NSN 6145-01-417-2988
NSN 4140-00-824-8821
NSN 6110-01-350-9354
NSN 4140-00-150-8265
NSN 5965-01-356-6340
NSN 6220-01-500-0740
NSN 5975-01-540-1585
NSN 4140-01-303-7157
NSN 6145-01-245-2502
NSN 6240-01-246-3248
NSN 6645-01-546-8226