Fwd: Re: Expansion trust force effect to pump nozzle.
- Tony Paulin <tony@paulin.com> wrote:
> From: "Tony Paulin" <tony@paulin.com>
> To: "Pat Burg" <patburgh2001@yahoo.com>
> Subject: Re: [PipingDesign] Expansion trust force
> effect to pump nozzle.
> Date: Wed, 10 Apr 2002 13:36:26 -0700
>
> Pat,
> The tie bars are supposed to carry the thrust load,
> not the pump. Elastomeric joints are generally
> avoided
> if possible in critical piping systems. Temperature
> changes,
> property variations, etc. can produce a system that
> is
> susceptible to pressure pulsations, mishandling,
> etc.
> (Whereas steel systems and joints are not so
> susceptible.)
>
> The joint is designed to take horizontal movement,
> not axial. If the loads are too high then a
> reconfiguration
> of the piping is needed, or a more accurate model of
>
> the thermal or load case.
>
> These situations are somewhat tricky, and someone
> used to modeling nuances of the program and of the
> installation can usually help out. This might be a
> problem to have a "consultant" look at to be sure
> that the modeling and loads are accurate.
>
> Tony
Received on Wed Apr 10 15:32:00 2002
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: Tue Mar 04 2008 - 11:40:22 EST