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 5895-01-485-3528
NSN 5925-00-397-8258
NSN 6645-01-565-0567
NSN 5905-00-871-9010
NSN 6240-00-398-0740
NSN 6685-00-299-8496
NSN 5915-01-139-5014
NSN 5998-00-574-1416
NSN 5935-00-186-7760
NSN 2925-01-590-8691
NSN 5945-01-365-4158
NSN 6145-01-411-7179