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 5965-00-296-9994
NSN 6240-01-339-4773
NSN 5999-01-186-9714
NSN 4140-01-312-2361
NSN 2925-01-053-5697
NSN 5985-00-354-3295
NSN 7035-01-379-3795
NSN 2925-01-342-1712
NSN 6150-00-075-4965
NSN 5985-01-198-8299
NSN 5950-00-499-3861
NSN 6610-01-274-2479