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 5998-00-930-5726
NSN 5930-01-145-5360
NSN 6320-00-857-4073
NSN 5925-01-483-2007
NSN 6320-01-243-2276
NSN 4140-01-273-0196
NSN 5985-01-558-3815
NSN 6610-00-425-7684
NSN 5835-01-319-4636
NSN 5950-00-825-4523
NSN 5905-01-463-3144
NSN 5835-01-281-7281