Question on Tandem Seal

From: <segun>
Date: Sat Feb 24 2007 - 05:53:00 EST

Paul , steve

I thank you guys for your response. I really appreciate your being prompt. My purpose of joining the group is being justified daily.

Please try and undersatand that dearth of experienced design engineer will make a silly engineer the boss in the environment we found ourselves (Nigeria), but my joining this group will help in tapping into the wealth of experience of you guys and equally share this experience with fellow upcoming engineer.

Steve in your comment you said tandem seal is one option for preventing failure, please what are the other options and is this required for Firewater pump?

Thanks once again.

Segun O.
--- Paul Bowers <pbowers@pipingdesign.com> wrote:

> One slight modification to Steve's words: working
> with sometimes-silly
> people is a lot better than working with
> ill-informed, arrogant or
> downright dangerously oblivious people. Once one
> gets sufficiently deep
> into this business silliness can be a great stress
> reliever (and I don't
> mean PWHT).
>
> Personally, I like to get a hold of a PFD whenever
> possible as it tells
> a lot about what's happening to the fluids, but
> these are not always
> available for various reasons.
>
> I think Steve means PFD when he says flowsheet.
> Material balance is a
> term I've only started to notice over the past 10
> years or so, but I can
> claim to have seen only 5 or 6 companies' versions
> since then, so I'm
> obviously not aware of all ways of doing things.
>
> These days it seems that the P&ID people are adding
> more specific notes
> which helps quite a bit. In the proverbial "old
> days" I'd end up asking
> process, "is this what you intended" by producing a
> hand-drawn iso
> sketch if something was unclear.
>
> With 3D models on company networks today the process
> group has access to
> physical piping configurations - I sometimes wonder
> if they bother to
> check this stuff. Often, process people are chem
> engineers who may or
> may not be able to interpret 3D models (sure, it's a
> nice, rotatable
> picture, but there's not easily-seen annotation
> unless one knows how to
> manipulate the software), let alone 2D drawings.
>
> Paul
>
> Steve McKenzie wrote:
> > Segun Odukoya
> >
> > The question you were asked is a very poor one (I
> assume you meant to type
> > tandem) to use for employee selection purposes.
> There is no pump type that
> > specifically requires a tandem seal. It is merely
> one option to deal with
> > possible seal failure. You should count yourself
> very lucky you did not get
> > the job, as you would have been working with at
> least one silly person. So
> > maybe the question did work after all, but in
> reverse to expectations.
> >
> > Your second question depends partly on the
> industry. There are a number or
> > documents which need to be jointly developed,
> including P&ID, layouts,
> > equipment lists, flowsheets, control philosophy
> material and energy
> > balances.
> > In the areas I work, the balances and flowsheets
> are normally developed by
> > process, as is the first pass P&ID. The P&ID is
> the real interactive
> > document requiring input from process and
> mech/piping. However sometimes a
> > change must be reflected back to the flowsheets
> equipment lists etc.
> > For most process work I expect a completed
> flowsheet from process, and work
> > jointly with them to produce the P&ID.
> > Interested to hear how others work.
> >
> > Cheers
> >
> > Steve
> >
> >
> >
> >> From: segun odukoya <segunodukoya@yahoo.com>
> >> Reply-To: <a href="/group/PipingDesign/post?postID=Az9va7frSLiZGw_VX2XHYsN9_K86kW020co4INFX7PPsKR7wJrQLWsABvPLTubK0ZO7i07DkS1KeOvF_KtmUYv68-shQ">PipingDesign@yahoogroups.com</a>
> >> To: <a href="/group/PipingDesign/post?postID=Az9va7frSLiZGw_VX2XHYsN9_K86kW020co4INFX7PPsKR7wJrQLWsABvPLTubK0ZO7i07DkS1KeOvF_KtmUYv68-shQ">PipingDesign@yahoogroups.com</a>
> >> Subject: Re: [PipingDesign] Info on piping design
> sources
> >> Date: Fri, 23 Feb 2007 11:57:55 -0800 (PST)
> >>
> >> Good day guys,
> >> I joined this group about 3 days ago and at least
> I
> >> have learnt 3 things.
> >>
> >> My question to the group is which pump does not
> >> require tadem seal? This question cost me a job
> >> recently at an interview.
> >>
> >> Also, what is the most important document that a
> >> piping and mechanical engineer require from the
> >> process team to start carrying out its activity?
> >>
> >> Thanks
> >> Segun Odukoya
> >>
> >>
> >> --- Paul Bowers <pbowers@pipingdesign.com> wrote:
> >>
> >>> iliasvitalis77 wrote:
> >>>> Good morning everybody.
> >>>> This is my first post in this forum.
> >>>> I would like you to direct me to a source where
> I
> >>> can obtain
> >>>> information on the design of multiproduct
> >>> pipelines. I'm aware that
> >>>> this topic is rather vague but I would
> appreciate
> >>> any help. Due to the
> >>>> fact that I'm rather novice in the pipeline
> design
> >>> and fabrication
> >>>> procedure, some reference books, articles will
> be
> >>> certainly quite
> >>>> helpfull as well.
> >>>> Regards,
> >>>> Elias Vitalis
> >>>> Engineering Department.
> >>>
> >>> Hi Elias,
> >>>
> >>> Try 'Pipeline Rules of Thumb' by E.W. McAllister
> and
> >>> 'Piping and
> >>> Pipeline Engineering' by George A. Antaki.
> >>>
> >>> Paul
>

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