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ENP vs. Chrome Plating for ball valves

January 8, 2010

I am an Engineer working in ENP company, we have to choose ball valves, ball having coating of either Electroless Nickel Plated or Chrome Plated. It may be noted that these valves are to be used in high pressure gas transmission pipelines and that gas may contain Hydrogen sulphide, Carbon , water and condensate.

Please provide information if u have any.

Khalid Dero
Design Engineer - Karachi, Sindh, Pakistan
^- Privately contact this inquirer -^

January 13, 2010

High phos EN is a proved and excellent barrier against corrosion. Hard chrome is better for erosion and wear. Unfortunately the described environment is too complex to forecast. You have to try,
Guillermo Marrufo - Monterrey Mexico

Guillermo Marrufo
Monterrey, NL, Mexico

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