Supplement :
To avoid PVC flange breakage / leak : Match flange faces- flat face to flat
face;
raised face to raised face.
-----Original Message-----
From: Steve McKenzie [mailto:Mechproj@xtra.co.nz]
Sent: Monday, August 19, 2002 7:40 AM
To: PipingDesign@yahoogroups.com
Subject: RE: [PipingDesign] Query-Sump caisson Piping
Hi Rajeev
I have not answered this until now because I thought that you would have
answers from others. 125# and 150# should bolt together with no problems.
Use a soft rubber gasket, assuming the pressure is about 5 bar, and size is
around 200NB (8"). This also assumes that the steel pipe is well anchored
and expansion of the PVC pipe has been addressed.
Cheers
Steve
-----Original Message-----
From: rajeev chaudhari [mailto:rajeevbhai@yahoo.com]
Sent: Saturday, August 17, 2002 6:27 PM
To: PipingDesign@yahoogroups.com
Subject: [PipingDesign] Query-Sump caisson Piping
Dear Piping design memebers,
I am facing one problem in design.
Sump caisson pump vendor has provided inlet & outlet
with 125# PVC flange . The connected piping TO SUMP
CAISSON is Carbon steel 150 # .
How do I go about this...?
I appreciate your valuable time.
Best Regards
Rajeev,
Piping Engineer
SMOE,Singapore.
- Mario Roqueta <mario.roqueta@ensi.com.ar> wrote:
> Dear Ivan: With reference to API Series
> 2000/3000/5000/10000/15000/20000 you
> can find them in API Spec 6A Specification for
> Wellhead & Christmas Tree
> Equipment. Best regards: Mario Roqueta - ENSI SE -
> Neuquin - Argentina
>
> -----Mensaje original-----
> De: Ivan Fernandez [mailto:ifernandez@tecna.com.bo]
> Enviado el: Viernes 16 de Agosto de 2002 12:59
> Para: PipingDesign@yahoogroups.com
> Asunto: [PipingDesign] VALVES RATINGS
>
>
> Avelino BarreiroHi to all,
>
> About this subject, I have a big confussion, How
> many Valve Pressure Class
> Ratings do we have?.
>
> I could find:
>
> ANSI B.16.34 : 125#, 150#,
> 300#,400#,600#,900#,1500#,2500#
> ANSI B.16.1. : 25#,125#,250#,800
> API 602 : 800 - 1500
>
> There is another Pressure Class Rating followed by
> the initials "CWP" ( See
> MSS SP-25 ), it means Cold Working Pressure, and is
> the maximum pressure
> rating allowed under normal "ambient" temperature
> conditions, (- 29 :C to
> 38:C). According to the MSS SP 25, the initials CWP
> are used undistinctively
> as: ( WO-Water Oil Pressure, OWG-Oil, Water, Gas
> Pressur,WOG-Water, Oil, Gas
> Pressure,GLP-Gas,Liquid Pressure,WWP- Water Working
> Pressure,W- Water
> Pressure). When you have a valve under this pressure
> rating class, for
> example : 150 CWP ( it means that the maximum
> working pressure is 150 psi @
> 38:C).
>
> But I still have doubts with these ratings showed in
> catalogs:
>
> 2000, 3000 , 6000 - To which specification
> corresponds?
>
> I also found an API Rating: 2000/3000/5000/10 000/20
> 000, in the catalogs,
> but I couldn't find information about them, looking
> in API publications.
>
> And also some valves catalogs shows an ANSI 4500. ??
>
>
> Please, can someone of you guys help me to clarify
> this Ratings-matter, in
> order to know all the Valves Ratings availiables.
>
> Thanks in advance.
>
> Ivan Fernandez C.
>
>
> ___________________
>
> TECNA BOLIVIA S.A.
>
> Torre CAINCO Av. Las Amiricas N: 7 Piso 10 - Santa
> Cruz - Bolivia Tel.:
> (591-3) 336-2263 Fax: (591-3) 337-8470
>
> Casilla de Correo 6572 - E-mail:
> ifernandez@tecna.com.bo
>
>
> ___________________
>
>
>
> [Non-text portions of this message have been
> removed]
>
>
>
> Texas Flange - a good source for information on
> industrial flanges, all they
> ask is for referrals for designs they help with.
> 877-610-8924.
> www.texasflange.com
>
> unsubscribe:
> PipingDesign-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
>
>
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ask is for referrals for designs they help with.
877-610-8924.
www.texasflange.com
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ask is for referrals for designs they help with.
877-610-8924.
www.texasflange.com
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Received on Mon Aug 19 08:39:00 2002