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 5985-00-803-7468
NSN 5990-01-307-4489
NSN 6650-01-440-9215
NSN 6135-01-643-9081
NSN 5835-01-485-0210
NSN 6220-00-258-2967
NSN 5996-01-293-5936
NSN 5915-00-999-3470
NSN 5950-00-006-3122
NSN 5925-00-221-8639
NSN 5975-01-106-8367
NSN 6620-01-478-2485