Wednesday, February 2, 2011

[MW:9662] Re: Weld Repair on PTFE lined vessel

Dear Mr. vinod,
can you please give the following details, so that i can able give
some solution.
1. What is the melting point for PTEF used for lining. Normaly PTFE
melting point is 327 deg C and Mecanical degread is 260 Deg c.

2. Do you have the WPS/PQR used by manufacture?

3. In you mail i am not able to see the photograph. if possible pls
send.

4. We can use the Heat-tint mehod for this repairs, with low current,
with some of the backup material used inside the pipe.


On Feb 1, 2:12 am, "Vinod Kataria" <vinod.kata...@blissanand.com>
wrote:
> Dear All,
>
> Please see the attached photo for the undercut and advice if it is possible
> to repair this on PTEF lined vessel the vessel. The size is 2" NB and wall
> thickness is 2mm with inside PTFE lining of 4mm. We have imported this
> vessel from Germany but during 3rd party inspection it is rejected because
> of this undercut. The working pressure of this vessel is only 3.5 bar and
> its successful withstood a hydro test pressure of 10 bar.
>
> Now I request all the expert to please advice if we can repair this undercut
> if yes than please provide me some guideline or some procedure to carry out
> this repairing.
>
> Thanks in advance for your kind help.
>
> With kind regards,
>
> Vinod Kumar Kataria
>
> GM - Operations
>
> Bliss Anand Private Limited,
>
> 92B/93B Sector 5
>
> IMT Manesar,Gurgaon,
>
> National Capital Region Delhi.
>
> India .
>
> Phone : +91-124-4366000 (9 Lines)
>
> Mobile Phone : +91-9560199004
>
> Fax : +91-124-2290884
>
>  PIC 1.jpg
> 1220KViewDownload

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