With four ports; double-type, used with a double-acting cylinder or motor where it is necessary to lock both circuits
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
Classification: Check valves of iron
NSN 5920-00-607-3385
NSN 6685-01-037-4711
NSN 5985-00-181-8848
NSN 5960-01-013-2587
NSN 5935-01-134-5154
NSN 7035-00-139-6426
NSN 5998-00-088-5912
NSN 6135-01-659-5393
NSN 6150-01-529-7908
NSN 5998-01-365-4839
NSN 5960-00-368-4084
NSN 6610-01-551-0774