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 2925-00-139-8309
NSN 5950-01-114-3469
NSN 6320-01-512-2031
NSN 5910-01-444-3547
NSN 6620-01-306-9465
NSN 7035-00-981-7216
NSN 6650-01-044-5431
NSN 5996-01-334-6471
NSN 7035-01-036-0236
NSN 5975-00-430-8082
NSN 5945-01-568-2710
NSN 5925-00-804-5814