Re: Condensate line erosion problems

From: <Arif>
Date: Mon Nov 25 2002 - 13:57:00 EST

Haridas,

Can you provide velocity in the header ? The high velocity in condensate line may be a cause for erosion.

Arif Patel
AM Consulting Engg Co.
Saudi Arabia

• Original Message ----- From: <a href="/group/PipingDesign/post?postID=sTZ4nd72AQnghq8ow03skjkxzjmzw9wJNmlyy-dqz_iFjmmsBft0t6zxsFDLr5RTEHXciuAkpPxzgw">t_haridas@ril.com</a> To: <a href="/group/PipingDesign/post?postID=jceMYB5o1hKOkAcR0slYfMnvARGe8LcX1_HiynZ2ceh_iAWFgQhuPYeG7SRxRjAEDwqoKxSVvKccgBKVr5iCpa74He6w">PipingDesign@yahoogroups.com</a> Sent: Monday, November 25, 2002 1:00 PM Subject: [PipingDesign] Condensate line erosion problems

   Hi, Gentlemen,
   Here Iam calling your attention to corrosion-erosion problem noticed in    Steam condensate lines in our Refinery / Petrochemical units.

               Due  to  the  severe  erosion problems in Medium and High steam
          condensate  lines,  the  elbows  and  reducers  at  d/s  of  CVs are
          punctured.     One  typical  layout  of a Medium pressure condensate
          line CV station is enclosed for reference.

          The erosion points noticed were :



          (i) the elbow at the d/s Globe Valve (by-pass line)




          (ii) the ecc. reducer and elbow at the d/s of CV




          (iii) the Control Valve trims (316 SS)

   (Embedded image moved to file: pic26443.pcx)

   Query :

1. Kindly let us know your expert opinion on above failures
2. Do you have any suggestion / comments on the piping layout used for CV stations
3. Remedial actions reqd to avoid such failures in future

   Best Regards
   T Haridas

   [Non-text portions of this message have been removed]

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[Non-text portions of this message have been removed] Received on Mon Nov 25 13:57:00 2002