Metric Pipe, Flanges and Fittings (DIN Pipe, Flanges and Fittings) 3

[franki]

Does anyone know where to get information regarding metric pipe, flanges and fittings meeting DIN standards? In particular I require information on the correct call-outs for the pipe, flanges and fittings (including material designations). I have gathered info from Sandvik, but the call-out nomenclature is obscure.

I also require info in helping to correctly size the piping for flow, pressure and temperature. I have great reference literature for ANSI pipe, flanges and fittings, but sadly none for metric.



Frank Stempfer, CET
franks@howardmarten.com

http://www.howardmarten.com

 

[CARF]

http://www.welding-units.co.uk/dld/dld.htm

Free flange data software

Welding Units supplies free software to flange users. More than 1,000 of our clients are already using this software, which gives a wealth of design and dimensional information for flanges and their materials.

Good luck CARF,

http://www.carf-engineering.com

 

[franki]

Thanks for your link, but it looks to be only for ANSI standards and their associated dimensions. I require info regarding DIN standards and how to specify for purchasing.



Frank Stempfer, CET
franks@howardmarten.com

http://www.howardmarten.com

 

[jsummerfield]

Read the standard.

ASME B36.10M-2004 includes the NPS pipe size and DN size for each nominal pipe size in table 1. The note 1 for NPS and note 2 for DN follow:

(1) NPS (Nominal Pipe Size) is a dimensionless designator that has been substituted in the customary units section for the previous term Inch Nominal Size.
(2) DN (Nominal Diameter) is a dimensionless designator used in the SI (metric) system to describe pipe size.

John

 

[franki]

Thanks, but I require fitting and flange info as well. ASME B36.10M covers the basics about ASME pipe and it's soft conversion to metric. My dilemma is with the DIN wall thicknesses for fittings and flanges as they apply to the pipe. The ASME standard offers a very limited range of wall thicknesses (schedules) and as such I am finding it difficult to "schedule match" the fittings/flanges to the pipes. Also, my client insists upon DIN standards for materials as well as sizes.

I really need info regarding how to "call-out" or specify the materials for ordering, and what are the "normal" available sizes/range of sizes and materials of pipe, fittings and flanges. So far I have found a lot of useful info from Sandvik, but their "call-out" information looks to be specifically for buying from Sandvik.

Flange example:
FLANGE, 2in.-150lb ANSI RF WN Sch.40 Bore, Mat'l: A105
vs.
FLANGE, 60.3-PN16, DIN2526 form C RF, DIN2633 WN,
Mat'l: ??? (C.Steel)
or FLANGE, 60.3-PN16, FFWN, Mat'l: ??? (C. Steel)
>> need clarification if FFWN is the Sandvik-only
call-out, because the FFWN flange is stated as
having a "Raised Face" per DIN 2526 form C.

Fitting example:
ELBOW, 2in.-Sch.40 SMLS BW 90deg LR, Mat'l: A234 WPB
vs.
ELBOW, 60.3x2.6, SMLS BW 90deg 3d/1.5D, Mat'l: ???
(C.Steel)
or ELBOW, 60.3x2.6, FBBS3, Mat': ??? (C.Steel)
>> need clarification if FBBS3 is the Sandvik-only
call-out, because the FBBS3 elbow is stated as
being a buttwelding-type 90deg Bend 3d/1.5D, but
without a specific end connection designation
of "buttwelding" or "bevelled".



Frank Stempfer, CET
franks@howardmarten.com

http://www.howardmarten.com

 

[ApC2Kp]

Franki,
Your company website helped me understand that your expertise is more in the equipment and controls for a skid mounted package system - not necessarily piping. To have a DIN piping system the DIN design codes are needed, not just the dimensions for DIN components. And there are few places where there is a one to one translation of a DIN component for a ANSI component. How many 2-bolt ANSI flanges have you seen lately? The flange pressure class levels are divided differently, and the pipe wall schedules are more varied. All that being said, it is possible to build a DIN piping system. The best advice may be to check a EURO vendor's DIN piping skid or use client's existing DIN piping as a basis for design.

 

[franki]

Thanks for your reply. But I must correct you - we manufacture packaged piping systems. You may have been looking at our other divisions webpage. I agree that it is possible to build a DIN piping system; that is why I need to find out where I can get DIN standards (accurate and concise). I really need to know how to spec the piping and fittings. I do not have a clients piping system here, as I am making the piping system for the client. Do you know which European sites I can get access to, in order to get some info on DIN standards? I realize that contacting DIN will get me that info, and am in the process of getting some specs, but I do not have the luxury of waiting for the info and then poring over all of it. To start I require pointers, then I can get my tenders completed and finish up the rest as our design is finalized.



Frank Stempfer, CET
franks@howardmarten.com

http://www.howardmarten.com

 

[ApC2Kp]

franki,
Two vendor sites that you could start with are

http://www.vanleeuwen.com

(also linked from

http://www.stainless.nl),

which will provide you a password after registration,

http://www.econosto.com

(type in 'technical data' for site search).
Other search tools besides Google would be sites like

http://www.globalspec.com

http://www.neis.com

http://www.kellysearch.com

http://www.rusbiz.com

http://www.alibaba.com

http://www.tubenet.org

Use search keys 'DIN+Europe+pipe+valves' and you will still get hundreds and thousands of vendor sites to view.

 

[franki]

Thanks so much, I haven't got through everything yet, but it is much better than where I started ... so many sites to visit, so little time



Frank Stempfer, CET
franks@howardmarten.com

http://www.howardmarten.com

 

[jsummerfield]

You may want to start with some of the ISO standards. DIN 2526 pertains to Flanges - Flange facing types. Several DIN standards are part of ISO 11960. This might be worth checking a summary before buying. Also several API standards such as API STD 6D and 600 are part of ISO. There are a lot of DIN standards.


John

 

[franki]

Thanks - I will check



Frank Stempfer, CET
franks@howardmarten.com

http://www.howardmarten.com

 

[ApC2Kp]

franki,
Another item to check that should have been mentioned earlier. Since you are supplying a system to a client that is requiring DIN components, I would guess the installation is somewhere in Europe. Compliance with the European PED (Pressure Equipment Directive) code may also get into parts with 'CE" stamp. I can't help too much more, except the example of one US manufacturer, Fisher Controls Regulators, reached thru

http://www.fisher.com,

will give you taste of what a US vendor did to comply with CE mark.

 

[franki]

ApC2Kp,

You are right, we are supplying for Europe; Sweden actually. We are already well into meeting the PED requirements - it is, how shall I say it ... fun. On top of that the end user is nuclear, so the papertrail is rather extensive. Thanks again.

 

[pipingdesigner]

Hi Franki,

Have you tried

http://www.pipingdesigners.com

?

There is a page called standards that should provide you with the information you require, including DIN, ISO, ASTM, JIS etc. There are also some pages on comparisons between codes.

Kind Regards




pipingdesigner

http://www.pipingdesigners.com