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[MW:568] Re: Heat treatment of a jacketed vessel

By Materials & Welding
During PWHT keep open inlet and out let of jackets. Ensure that air pressure inside jacket is atmospheric.
As you mentioned shell thickness 80mm and jacket with 12/14mm.
Take care and support the equipment properly.

On Jan 31, 2008 9:37 PM, Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com> wrote:

In a worst case scenario what will happen when a large vessel with jacket subjected to PWHT? (core thickness of up to 80mm and jacket thickness of 12/14mm, both are made of SA516)

 

What are the precautionary measures?  Please share your views interms of distortion, bulging, vaccum, entrapment etc.

 

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