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 6620-01-549-6653
NSN 7035-01-287-5094
NSN 5975-01-133-8937
NSN 6135-01-205-5965
NSN 5930-00-216-4495
NSN 6240-00-034-5909
NSN 6320-01-232-4664
NSN 6645-00-385-3684
NSN 6240-00-468-7089
NSN 2925-01-131-0473
NSN 5855-01-281-9700
NSN 5965-01-075-3148