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 6610-01-233-5857
NSN 6240-00-933-5823
NSN 5965-00-099-0698
NSN 7035-00-897-7567
NSN 2925-00-953-2920
NSN 5930-01-467-3085
NSN 5950-01-126-9748
NSN 6145-01-535-7062
NSN 5835-01-010-3103
NSN 5998-00-046-4414
NSN 4140-01-477-1266
NSN 4140-00-925-9218