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Valves, Pumps & Compressors
Improving the performance of underwater safety valves
Improving the performance of underwater safety valves

Problem:
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.

Solution:
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.