Pipe joining

[MemphisDepay]

Dear all,

This is a CS pipe in sea water line which was detached earlier.Now they have joined it.What kind of joining method is this?

http://files.engineering.com/getfil...e5e9-4a67-81a8-6ade7db11f4b&file=DSCN8924.JPG

Thanks in advance

 

[europipe]

It is a grp (glassreinforced polyester) laminated joint.
The pipe is grp

 

[LittleInch]

Agreed,

Otherwise know as a butt joint, basically two cut ends of the pipe held together then over wrapped with layers of fibre and epoxy over a prepared outer surface and secured whilst the joint "sets". I've always thought it looks like a bandaged finger myself, but is surprisingly effective and strong. I wouldn't want to put too much bending moment on it though....

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

 

[bimr]

Based on the white paint, the pipe on the left looks like steel, not fiberglass.

Looks like some type of pipe wrapping used for a temporary repair.

http://www.piperepair.net/products/leak-repair/pipe-wrap/

Would expect that it is a low pressure pipe of some kind.

 

[Gator]

OT Those flange bolts don't seem to be straddling any natural centerlines (although the ones on the left seem to be lap joint type).

Edit: Looking at the photo in the correct orientation helps, the scaffolding platform was the hint.

Piping Design Central

 

[MemphisDepay]

Ya. This is a sea water line connected with FCW plate heat exchanger.

 

[LittleInch]

I find it difficult to believe that the pipe on the LHS isn't GRE / GRP. Apart form anything else is doesn't seem to make sense to have a short GRE spool between two steel items. I also don't think that type of joint would seal to a steel surface with any sort of adhesion worth talking about.

It is quite common for GRE lines to be coated or painted white to resist UV and the rest of the pipe seems to be in bright sunshine.

why are you asking? - Curiosity or is there something wrong?

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

 

[bimr]

Obviously, it is not a high definition picture. Agree that it does not make much sense.

However, the spool piece immediately to the right appears to be steel because it looks like two weld neck flanges welded together because of the welding seam in the middle.

The fiberglass flange appears to be different and also non-metallic.

The fiberglass pieces look to be installed where a piece of piping was cut out from existing carbon steel piping.

Just my two bit take from the small image.

 

[europipe]

Think bimr is right, they joined the grp (not epoxy as I see it)
to steel pipe, not really nicely cleaned.

 

[MemphisDepay]

Hello friends,

I have edited the pics. I will try to post more pictures tomorrow so that it will be helpful.

http://files.engineering.com/getfil...1e08-481b-aa97-477fb11a6e09&file=DSCN8925.JPG

http://files.engineering.com/getfil...4-366b-4f47-a6e4-3c8797062a5e&file=repair.JPG

 

[LittleInch]

Doesn't really add much I'm afraid and still don't understand what the issue is.

What is the writing under the sea water return wording?

It might be wishful thinking, but there is a hint of the cross weave under the white coating. Any pictures which get some sort of pattern visible would help.

I still can't see why anyone would insert a grip spoolto a steel pipe in this way. Makes no sense at all.

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