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 6620-01-289-6627
NSN 2925-01-523-3607
NSN 5945-01-463-8973
NSN 5915-01-552-2368
NSN 6130-01-553-7134
NSN 5945-01-209-6564
NSN 4140-00-279-0515
NSN 6110-00-394-7187
NSN 6135-01-093-7426
NSN 5910-01-202-2102
NSN 5975-00-408-8152
NSN 5965-01-059-4028