Dear All, We're reaching out to 3

[AMINATAISSA]

Dear All,

We're reaching out to the community for expertise in fabricating spherical socket joints for large-diameter DN2500mm water pipelines. We plan to utilize steel sheets for the pipe itself (we are a construction society) but are lacking a specific methods statement outlining the fabrication process for the joints.

Any insights or experience from someone who has tackled a similar challenge would be greatly appreciated. We're open to various approaches and materials for achieving a safe, durable, and watertight connection.

Your assistance would be incredibly valuable in advancing this project. We are also happy to share any information or challenges we encounter in return.

Thank you for your time and consideration.

 

[LittleInch]

2.5m is a pretty big pipe.

How is the pipe made?

If its steel why don't you just weld the pipes together?

Do you just mean the joints at the end of two pipes? "Spherical" is confusing me.

Any drawings, photos, sketches?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[1503-44]

I've used these for offshore oil/gas pipelines. B31 compliant Misalignment Flange.
You going to build these?

https://www.fogt.com/Alignlock-Misalignment-Flange

With one swivel flange on each end of the assembly below.
They're basically just a ball fitting inside flanges.
These are limited to 24". 2.5m is huge.

--Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."

 

[HTURKAK]

Dear AMINATAISSA ,

I want to understand that ''spherical socket joint '' is socket - spigot joint having limited rotation capacity ( Say 1-2 degree ) rather than swivel joint.
My past experience with large dia . pipes ;
- Our company installed DN 4000mm PCCP pipe at Great Man Made River project. The joints were socket - spigot with double rubber gasket similar to the following AWWA C 300 detail

,

- Onother PCCP water project , the dia . 2400 mm with socket -spigot joint with internal seal welding,
- In KSA , we installed PN 40 pressure water pipe with double bell VJ couplings .
- Another water project in KSA we used welded joints ,

My points and suggestions,
- Consider the use of PCCP instead of steel pipe for economy and service life,( refer AWWA C 304 Design of Prestressed Concrete Cylinder Pipe )
- The socket - spigot joint for steel pipe could be similar to the joint for PCCP ,
- Refer to AWWA MANUAL M11 Steel Pipe- A Guide for Design and Installation, look BELL-AND-SPIGOT JOINT WITH RUBBER GASKET,
- My vote is fillet welded strap joint .
- If you can share more info. ( internal lining,external protection, design pressure , length of PL ...) you may get better responds

Use it up, wear it out;
Make it do, or do without.

NEW ENGLAND MAXIM

 

[AMINATAISSA]

Hello all,

Thank you for your answers here is a drawing of what I am talking about:

This type of joint is used for alignment purposes.

And we need us a construction and pipeline society fabricate this type of joint (pipe) with steel sheet. (lap welded sleep joint)

 

[AMINATAISSA]

Hello ,
here there is some images for more illustration.

 

[LittleInch]

I think the word "society" is maybe confusing people. The English word is Company - Society Anonymeuse (SA), does not translate exactly. It means Limited Company.

So are you really just looking for a company to make this?

You're showing as Morocco? So I guess anywhere in Europe or the ME?

DN 2500 is a big bit of pipe. you might want to look at Pressure vessel fabricators who work in this sort of size or even maybe ship builders who make all sorts of shapes from flat steel plate.

Essentially this just needs rolling to the right internal radius



Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[georgeverghese]

Grayloc is a popular go to for such applications in the oil/gas industry with US Operating Companies, but may be overkill for low pressure water pipes. And it only is available up to DN600

https://www.oceaneering.com/grayloc-universal-ball-joints/

 

[HTURKAK]

Eng. AMINATAISSA ,
The last picture that you have posted depicts swivel spherical joint. It is not reasonable to use swivel joint for big size underground waterlines right?

One can guess that the manuf. of this joint , welding to pipe at both ends then seal welding of socket- spigot will cost more than the cost of pipes.

Common practice for these sizes (2400 mm or more ) is the use of one of the joints shown at my previous post and if necessary (for alignment changes etc ) purpose made miter bends used.

Just for curious ; can you show a project with your proposed jointing method ?



Use it up, wear it out;
Make it do, or do without.

NEW ENGLAND MAXIM

 

[AMINATAISSA]

Hello,

We're tackling a new challenge – fabricating a pipe with this joint end for the first time. if someone can help us with Methode of statement or norms that Controle the fabrication of this pipe end.

 

[LittleInch]

Like I said - this is large diameter metal bashing.

Find a local tank maker or pressure vessel fabricator and talk to them.
You might need a bit of help from a local engineering company to draw up the drawings, determine the required accuracy of the metal forming and write the specification.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[AMINATAISSA]

OK ,Thank you so much for help.