Re: Piping supports contact surface friction factor

Dear Keivan,

Can you send a sketch of what you are trying to do? Maybe I can help in this matter.

Dr. A. Seibi
----- Original Message -----
From: "k1_m_a" <mashayekh-k@iritec.com> To: <PipingDesign@yahoogroups.com> Sent: Tuesday, November 11, 2003 10:58 AM Subject: Re: [PipingDesign] Piping supports contact surface friction factor

> Dear Sajit,
>
> The history of the job is that, considering the expences,
> construction concerns and the number of supports we are obliged to
> use simple pipe supprts made of pipes. And because of this Teflon
> Sliders can not be used.
>
> And that friction factor of 0.3 has been considered based on
> Petroleum Standards in my country. But now I am looking for some
> other standards and reliable references to based on them lower
> friction factor for pipe to pipe contact can be cosidered.
>
> That's all.
>
> Regards,
>
> Keivan
>
>
>
> --- In PipingDesign@yahoogroups.com, "Sajit Viswan" <sviswan@t...>
> wrote:
> > May I suggest,
> >
> > The person who raises the question should also say what answers on
> the question that he has already found (Including previous postings
> on this list), so that the person who answers does not have to start
> from zero.
> >
> > For a start, have you considered supports with teflon slides?
> >
> > Sajit
> >
> > -----Original Message-----
> > From: k1_m_a [mailto:mashayekh-k@i...]
> > Sent: Monday, November 10, 2003 6:45 PM
> > To: <a href="/group/PipingDesign/post?postID=U9aYkEyYZ5iFf9Y_OunrmCLRUoFWWj5kwGVhSYVQ13v0RH3YTRHyqzD_YMaZen9rqi0QQhNNafWhuF9_FoAIdj1V">PipingDesign@yahoogroups.com</a>
> > Subject: [Man.Distr][PipingDesign] Piping supports contact surface
> friction factor
> >
> >
> > Dear members,
> >
> > Thank you in advance for your kind attention.
> >
> > In the Gas Treating Plant we are working on, we have faced this
> problem that
> > for Flare lines outside the battery limits, the piping supports
> have become
> > very huge.
> > Piping load is big, elevation is high and the supports shall be of
> pipes. But
> > considering 0.3 friction factor for pipe to pipe, the horizontal
> load will be
> > so big that will tend to a huge supprt structure.
> >
> > Is there any reference standard or approved engineering practice to
> stick to
> > that to consider lower friction factor for pipe to pipe surface
> contact?
> >
> > Best regards,
> >
> > Keivan Mashayekh
> >
> >
> >
> >
> >
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Received on Tue Nov 11 06:27:00 2003