is that pipe line had been hydrotested prior to
start-up operation?
- e-Director <segip@tm.net.my> wrote:
> Dear friends,
>
>
> Recently, during our plant start-up, some of our
> newly welded joints burst
> and break-off. To date, there had been no finding
> to the cause of these
> problems..
> Some of the guys suggested that maybe the welded
> joint needs to undergo
> chemical cleaning to remove any unwanted
> contaminants that may cause
> flammabality such as oil and grease and other debris
> inside the
> pipelines.... The HAZ area inside the welding joint
> may also cause the
> welding joint to be weak and also stresses the need
> for chemical cleaning...
>
> 1. Does anyone knows why we need to do chemical
> cleaning for a new
> pipelines?
> 2. Does this chemical cleaning process also need to
> be done if we do some
> modification in the lines which involves a lot of
> welding procedure?
> 3. Is it possible that without chemical cleaning,
> there is a danger of
> explosions?
>
> Thanks
>
>
>
>
>
>
>
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Received on Fri Aug 01 13:26:00 2003