If a Air Receiver need to be painted depends completely on the
customers requirements. For example Shell mostly requires 300-350 µm
epoxy coating at the inside in order to prevent any corrosion caused
by high air humidity, especially if such air receiver is in front of a
expensive compressor.
To ensure that this coating doesn't come off Shell requires a special
pull off test for each serial coating system / material combination.
I'm not sure but I think that all these requirements are laid down in
Shell DEP 31.40.30.32.gen. This specification also specify the
requirements for surface preparation in order to ensure proper
adhesion.
Best Regards,
Herman Pieper
On 6 mei, 12:56, Fereidoun Majdnia <fmajd...@technip.com> wrote:
> Dear Pankaj
> Air Receivers are not normally painted or coated internally for two main
> reasons:
> 1- Air is not corrosive even in harsh environment and the moist accumulated
> in humid areas is drained periodically not to build up inside the vessel.
> 2- If internally coated the coat may get pilled off and carried into
> instrument and cause their malfunction.
>
> Regards
>
> pankaj abhang
> <pankaj.abhang1@g
> mail.com> To
> Sent by: materials-welding@googlegroups.com
> materials-welding cc
> @googlegroups.com
> Subject
> [MW:5079] corrosion resistant
> 05/05/2010 03:03 plating
> PM
>
> Please respond to
> materials-welding
> @googlegroups.com
>
> Dear all
> I am having a vessel of CS i want to give corrosion resistant coating from
> inside any body will tell me the procedure such as paint, powder,or by
> electro plating method.The vessel is of Air reciver vessel constructed as
> per ASME. The coating to be done from inside to avoid corrosion.
>
> The size of vessel is Dia-1100, Length-2400 mm.
> MOC- SA516 GR. 70
>
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