Also, FLOWSERVE have a good selfpriming pump can be
suitble for you .... just send them the datashaeet for
the process condetiond that u have and they will
sellect one.
> Bungartz pumps are special vertical pumps where the
> pump itself do not go
> down into a shaft. It is located above the ground
> (like a vertical in-line
> pump), thus saving the cost of excavation etc.
>
> We have had successful installation of such pumps in
> situations where
> available NPSH is very low. You may go thru their
> web-site (as mentioned
> in my previous mail) for details.
>
> Pankaj.
>
>
>
>
>
> "Steve McKenzie" <mechproj@xtra.co.nz>
> 12/03/04 04:46 PM
> Please respond to PipingDesign
>
>
> To: <PipingDesign@yahoogroups.com>
> cc:
> Subject: RE: [PipingDesign] Pump
> selection
> .
>
>
>
> Me neither, but I don't know much about pump brands.
>
> However it may be worth designing and building your
> own priming station.
> On more specialised applications, it can be cheaper.
> If it is at all possible to put the pump down the
> (a) hole by using a
> pedestal pump, as Pankaj suggests, then that is
> often the best solution
> as NPSH uncertainties are reduced along with seal
> issues. I assume you
> are not extraction/subatmos pumping. The only
> special things to watch
> are bearing lube arrangements, shaft thrust issues,
> erosion/tip speed,
> servicing and foundations. Cant understand why you
> consider the
> pulsations from a diaphragm pump an issue. Please
> explain.
>
> Cheers
>
> Steve
>
> -----Original Message-----
> From: Jacques Chaurette
> [mailto:jchaurette@fluidedesign.com]
> Sent: Friday, December 03, 2004 2:50 PM
> To: <a href="/group/PipingDesign/post?postID=VDxQ-YHPEDNt9KAJ8jRi6cpIPmFqL3neJdkSXgwwVpa-CxPZvUqf9STmSNe8fw4HADDtsB0GXxsUaPMKZ5QWze-M">PipingDesign@yahoogroups.com</a>
> Subject: Re: [PipingDesign] Pump selection
>
>
>
> No, I have never heard of them.
>
> Jacques
> ----- Original Message -----
> From: Chicago
> To: <a href="/group/PipingDesign/post?postID=VDxQ-YHPEDNt9KAJ8jRi6cpIPmFqL3neJdkSXgwwVpa-CxPZvUqf9STmSNe8fw4HADDtsB0GXxsUaPMKZ5QWze-M">PipingDesign@yahoogroups.com</a>
> Sent: Thursday, December 02, 2004 6:51 PM
> Subject: Re: [PipingDesign] Pump selection
>
>
> Yes, I am looking into Gould 3796. An Initial
> positive response on
> Gorman-Rupp U3B65-B from the vendor has tapered off
> due to limitations.
> Have you or anybody else have heard about self
> priming pumps from RS
> Corcoran ?
> ----- Original Message -----
> From: Jacques Chaurette
> To: <a href="/group/PipingDesign/post?postID=VDxQ-YHPEDNt9KAJ8jRi6cpIPmFqL3neJdkSXgwwVpa-CxPZvUqf9STmSNe8fw4HADDtsB0GXxsUaPMKZ5QWze-M">PipingDesign@yahoogroups.com</a>
> Sent: Thursday, December 02, 2004 4:50 PM
> Subject: Re: [PipingDesign] Pump selection
>
>
> Now that we have the vapor pressure sorted out
> this does not seem
> like too difficult an application. It seems to me
> that a self-priming
> centrifugal pump by Gorman-Rupp or Goulds will do
> the job, they don`t
> normally come with these types of seals but maybe
> they can be installed.
>
> Jacques
>
> ----- Original Message -----
> From: Chicago
> To: <a href="/group/PipingDesign/post?postID=VDxQ-YHPEDNt9KAJ8jRi6cpIPmFqL3neJdkSXgwwVpa-CxPZvUqf9STmSNe8fw4HADDtsB0GXxsUaPMKZ5QWze-M">PipingDesign@yahoogroups.com</a>
> Sent: Thursday, December 02, 2004 3:37 PM
> Subject: Re: [PipingDesign] Pump selection
>
>
> Yes, you are right. It is 2 psia. Not 2 psig.
> ----- Original Message -----
> From: Jacques Chaurette
> To: <a href="/group/PipingDesign/post?postID=VDxQ-YHPEDNt9KAJ8jRi6cpIPmFqL3neJdkSXgwwVpa-CxPZvUqf9STmSNe8fw4HADDtsB0GXxsUaPMKZ5QWze-M">PipingDesign@yahoogroups.com</a>
> Sent: Thursday, December 02, 2004 2:19 PM
> Subject: Re: [PipingDesign] Pump selection
>
>
> You said 2 psig at 80F, not the same.
>
> Jacques
>
> ----- Original Message -----
> From: Chicago
> To: <a href="/group/PipingDesign/post?postID=VDxQ-YHPEDNt9KAJ8jRi6cpIPmFqL3neJdkSXgwwVpa-CxPZvUqf9STmSNe8fw4HADDtsB0GXxsUaPMKZ5QWze-M">PipingDesign@yahoogroups.com</a>
> Sent: Thursday, December 02, 2004 11:35 AM
> Subject: Re: [PipingDesign] Pump selection
>
>
>
> The liquid is a mixture of Benzene (80%),
> Xylene and Toulene.
> The stated boiling temperature of the mixture at
> 14.7 psia is 170 F. The
> vapor pressure of 2 psia at 80 F is only a derived
> number from a vendor.
> As a VOC the liquid is required to be stored under a
> nominal blanket of
> 5 in WC.
> Thank you for your interest.
>
> ----- Original Message -----
> From: Jacques Chaurette
> To: <a href="/group/PipingDesign/post?postID=VDxQ-YHPEDNt9KAJ8jRi6cpIPmFqL3neJdkSXgwwVpa-CxPZvUqf9STmSNe8fw4HADDtsB0GXxsUaPMKZ5QWze-M">PipingDesign@yahoogroups.com</a>
> Sent: Wednesday, December 01, 2004 2:55
> PM
> Subject: Re: [PipingDesign] Pump
> selection
>
>
> I think there is something missing here.
> Are you sure that
> the vapor pressure is 2 psig, this is extremely
> high, what kind of
> liquid is it, with a vapor pressure like that when
> the liquid is open to
> atmosphere then it will completely evaporate, there
> will be nothing left
> to pump. If the vapor pressure is correct, then you
> need to have this
> liquid under pressure which is a data that you have
> not given.
>
> Jacques
>
> ----- Original Message -----
> From: amhus
> To: <a href="/group/PipingDesign/post?postID=VDxQ-YHPEDNt9KAJ8jRi6cpIPmFqL3neJdkSXgwwVpa-CxPZvUqf9STmSNe8fw4HADDtsB0GXxsUaPMKZ5QWze-M">PipingDesign@yahoogroups.com</a>
> Sent: Wednesday, December 01, 2004
> 3:09 PM
> Subject: [PipingDesign] Pump selection
>
>
>
>
> I am trying to find a suitable pump
> for a rather complex
> application. The pump needs to be self
> priming as it has a
> lift of
> 14 feet. At 100 GPM I expect the total
> head to be 150
> feet. It needs
> to handle solids atleast 1/4 inch
> size, the vapor pressure
> of the
> pump liquid is about 2 psig at 80 F
> which really cuts down
> on the
> NPSH. And on top of it it would handle
> a VOC subject to
> NESHAP
> requirements- meaning sealless or
> double seal pumps. I
> have already
> rejected diaphragm type pump because
> of pulsations.
> Any suggestions, generic or otherwise
> ?
>
>
>
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