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 5975-01-209-0789
NSN 6610-01-247-1798
NSN 5945-00-151-4623
NSN 7035-01-068-4175
NSN 5960-01-567-1096
NSN 5945-01-592-3379
NSN 5950-01-170-4062
NSN 5990-00-572-7442
NSN 6610-01-013-8922
NSN 5910-01-080-0019
NSN 2925-01-415-0264
NSN 5998-00-435-4799