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Best coating for butterfly valves?
November 12, 2009
I am a basic manufacturer of Ind valves. At present we are going to produce extraordinary quality butterfly valves. These processes are under completion. Now we want to know what will be more beneficial to us for paint or coating of metal (cast iron or cast steel) valves. According to our knowledge there are some paints in water base colour or epoxy or enamels. Exactly we want to know what is the electroless process and what is the meaning of Halar coating. U r all requested to familiate us with those.
Kaushal R Shah KaushalDirector - India
^- Privately contact this inquirer -^
December 8, 2009
What kind of coating are you looking for?
Is it for the exterior body protection or is this coating for the Wear & Corrosion Resistance of valve components?
In case it is for wear and corrosion resistance, I would recommend Tungsten Carbide coatings. These are sprayed by either HVOF or Detonation spray process.
The selection of coating is also dependent on the medium in contact of valves.
- Navi Mumbai, Maharashtra, India
December 22, 2009
Hello Mr.Kaushal R Shah Kaushal,
Better go for Rilsan powder coating.
this is almost similar to powder coating.this type of coating will give better performance on valves.
Up to my knowledge this cost is slightly high.... and base preparation is must (blasting or phosphating)
- Salem,Tamil Nadu,India
December 22, 2009
Thanks, Kannan. Although the word Rilsan is sometimes used a bit generically, Rilsan® is actually a trade name of Arkema for a series of different polyamide thermoplastic coatings, including PA11 nylon coatings. I think you are probably suggesting PA11 / Nylon 11 coatings.
Hi, Kaushal. Halar® is a Solvay tradename for fluoropolymer coatings. Your exact requirements aren't fully clear to me, but fluoropolymer coatings are similar to Teflon in exhibiting exceptional chemical resistance. As far as a know, these coatings are applied by immersion in a fluidized bed rather than by electrostatic spray, as that is the only way that I have seen them applied. I am not really an expert in these subjects, but am just trying to steer the discussion towards the technical aspects and away from brand names. Good luck.
Regards,
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