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 5985-01-158-8040
NSN 6220-01-224-6415
NSN 6110-01-441-1623
NSN 5930-00-107-7718
NSN 6150-01-204-2237
NSN 6620-00-467-7414
NSN 6645-01-180-6219
NSN 5910-01-519-5428
NSN 5975-00-575-9446
NSN 6650-01-499-5673
NSN 6145-01-541-5422
NSN 5975-00-021-7127