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Improving the performance of underwater safety valves
Improving the performance of underwater safety valves

The customer was responsible for the introduction of a new underwater failsafe safety valve following two years of R&D. Placed 300-500 ft below the ocean floor, a number of metal coatings were tested on the valves and the most common failure mode was galling produced by attempted rotation after metal to metal pressure had exceeded 30,000PSI.

NEDOX was used to coat the steel ball valves, at General Magnaplate, which acted to prevent corrosion, galling or seizing.

Nedox is a superior alternative to other common industry coatings such as nickel plating, electroless nickel, sulfamate nickel, co-dep electroless nickel (or EN), polymer impregnated (or infused) electroless nickel.