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 6220-01-437-1264
NSN 6645-01-519-2220
NSN 5855-00-237-4088
NSN 5945-01-190-4785
NSN 6135-01-653-1437
NSN 5996-01-153-0531
NSN 5965-00-716-7078
NSN 5855-01-088-8700
NSN 5925-01-579-3744
NSN 5930-00-218-4739
NSN 5950-00-421-6270
NSN 2925-01-257-6225