I never seen a company dictates the replacement of all gaskets after the hydrotest. Are you willing to introduce 300 bpd of product into a piping system that the gaskets were not tested for tighteness.
Think again.
> Dear all,
> All gaskets need not be replaced after a hydro test.
> Soft and resilient ones definitely needs
> replacement.
> Metallic ones need not be touched. This applies to
> RTJ
> and lens rings.
> The hydro test is for checking the soundness of the
> fabrication, not for the efficiency of the joint.
> Once
> that aim is fulfilled, the containing the leaks at
> the
> joint is a task of the fitter.
> Regards.
> C. V. Gangadharan.
>
> --- Pankaj Mandal <man45039@yahoo.co.in> wrote:
>
> >
> > Hello everyone,
> >
> > I would like to know if it is mandatory to replace
> > all gaskets after pressure test of piping. If we
> do
> > replace the same how do we ensure proper flange
> > tightening? I believe one of the major role of
> > pressure testing of pipes is to ensure proper bolt
> > tightening and leak proof flange joint.
> >
> > Pankaj Mandal.
> >
> >
> >
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