Re: Internal Phenolic Epoxy coating

From: <MAIL>
Date: Wed Feb 06 2008 - 12:41:00 EST

I totally agree that you don't need a phenolic coated internal parts of the valve.

   Fro Sour service CC valve, say its a ball valve;

   Here's an example Ball VAlve Specs;
   The valve Body/Bonnet construction should be Carbon steel Forged/cast/welded or flanged and the material to ASTM A 105 or A 216 WCB/WCC or ASTM A 350 Gr.LF2.

   The ball construction to Carbon steel Forged/CAst + 0.003" ENP and the material to A105/A 216 WWCB/WCC/A 350 LF2 + enp or A216 WCC + Ni. Boron/Hastelloy overlay 0.003"

   I can give a complete list of the Stem, Trunnion, Body seat ring, stem seal, spring and boby stud/nuts if you want. Contact me by e-mail outside the forum and I'll try to help you.

   Melvin
   mmag@chevron.com
   Mobile No. +1-201-693-4769

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Mohammed Aalamgeer <alamgeer5798@yahoo.com> wrote:

           I forget to mention that service is : SOUR CRUDE OIL

Internal Epoxy coating required to prevent the C.S. valve body from corrosion.

Regards
Alamgeer

• "M. Engineer" <kahabib@yahoo.com> wrote:

> First of all, Why are utilizing valve with internal
> phenolic coating in crude oil service?
>
> --- alamgeer5798 <alamgeer5798@yahoo.com> wrote:
>
> > Material requirement for valve body is C.S. with
> > Internal Phenolic
> > Epoxy coating. But Manufacturing is supplying
> valve
> > body of S.S.
> > In this instance Internal Phenolic Epoxy coating
> > still required?
> > I believe internal coating is not required!
> > Anyone differ from this? please advice!
> >
> > The service is Crude Oil.
> >
> >
> >
> >
>
>

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[Non-text portions of this message have been removed] Received on Wed Feb 06 12:41:00 2008