Re: Condensate line erosion problems

not suprising. If youre aware of the API 576 , this could have been avoided. there are a lot of reported incident involving the failure of the piping in the condensate system. Guys from Furmanite, Plidco and Team Inc
makes their living fixing leaks in the condensate piping system. 2 phase flow is mostly what hit us and undersize pipe. What we did is check the vel and pressure drop. piping failing the criteria were marked and inlcuded in the wall thikcness survey. If the metal thinnning is trending up, we are ready/ and prepared and when opportunity comes we implement the fix. can be use using the CRA at elbow, enlarging the pipe, upgrading the trim of the control valve, etc.

• In PipingDesign@y..., "Arif patel" <marif_patel@h...> wrote:
  > 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: t_haridas@r...
  > To: PipingDesign@y...
  > 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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