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 5950-01-154-7932
NSN 5910-00-350-3539
NSN 6240-01-088-0389
NSN 5835-01-227-2318
NSN 5998-00-792-9836
NSN 5960-00-188-8648
NSN 6105-01-034-5876
NSN 6320-00-676-9387
NSN 5960-00-247-4976
NSN 5975-00-489-6175
NSN 4140-01-523-7095
NSN 5965-00-378-3403