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.
Classification: Check valves of materials other than copper, iron or steel
NSN 6105-01-441-0048
NSN 6645-01-475-8283
NSN 5985-01-408-2083
NSN 6130-00-125-5138
NSN 5998-01-105-9344
NSN 5985-01-348-5871
NSN 5965-01-571-7958
NSN 5990-01-097-4721
NSN 5975-01-457-9491
NSN 5998-00-365-8887
NSN 5905-01-499-8727
NSN 6220-00-114-4953