Valve size 4 in.
A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second 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. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.
Classification: Check valves of steel
NSN 5945-01-607-3111
NSN 5835-01-027-1828
NSN 6620-01-539-2729
NSN 5990-00-489-7834
NSN 5930-01-504-8551
NSN 5996-01-643-7644
NSN 5910-01-436-7525
NSN 5935-01-052-0054
NSN 5960-00-707-3335
NSN 6110-00-169-5722
NSN 6685-01-384-4138
NSN 6620-00-111-4506