Re: [PipingDesign] Duration of hydrostatic testing in piping system

Thanks Chris for such a useful & prompt reply.

On 11/8/06, Christopher Wright <chrisw@skypoint.com> wrote:
>
>
> On Nov 8, 2006, at 1:07 AM, sandcauli wrote:
>
> > Well my query concern with duration or minimum time for which a system
> > to be
> > checked for hydrostatic leak test
> Give some thought to what you're actually trying to accomplish. The
> piece under test needs to be inspected for deformation and leakage and
> if that takes more than 10 minutes, so be it. This means going over
> every weld, seal and bolted joint to make sure it really isn't leaking.
> You might also need some time to snug up the flange bolts and get a
> proper gasket load on the system.
>
> You should also give the system enough time for the pressure to settle
> out so you can observe any decay in the pressure. It's not too tough to
> estimate how much fluid has to leak out to drop the pressure 1 psi, and
> you should base your time at pressure on the time you need to find a
> significant leak.
>
> Christopher Wright P.E. |"They couldn't hit an elephant at
> chrisw@skypoint.com <chrisw%40skypoint.com> | this distance" (last words
> of Gen.
> .......................................| John Sedgwick, Spotsylvania
> 1864)
> http://www.skypoint.com/~chrisw/ <http://www.skypoint.com/%7Echrisw/>
>
>
>

[Non-text portions of this message have been removed] Received on Sat Nov 11 13:12:00 2006