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Supporting of PE pipe

Supporting of PE pipe

Supporting of PE pipe

(OP)
Hello, I am used to work with steel pipe but in this case some lines have to be routed with PE pipe.
Currently it is known that lines will be on pipe rack in cable trays, the goal is to estimate quantity of required materials.
Do any standarts or recomendation covering this type of pipe routing exist?
Does a special tray catalog exist for this purposes?
Some general information also will be useful, for instance about vertical fragment and its support.
Please, share links raleted to the topic.

Thanks!

RE: Supporting of PE pipe

quantity of what materials?

The thing about PE is that it creeps. If you support it at discrete points then you have a high probability that over time, especially if exposed to high solar / ambient temps above ground, that it will sag between the supports.

This has some guidance on design and is a great source of info http://www.gpsuk.com/uploads/docs/1636.pdf

Be aware also that PE has a thermal expansion rate about 10 times that of steel so you really need to design in somewhere for that expansion to go.

Personally I would try to engineer in some continuous support ( actual cable tray and not ladder) or bury it.

PE is great stuff but it's not just low strength steel and you can't just use it in place of it without understanding the many differences. Even the sizes are different!

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

RE: Supporting of PE pipe

(OP)
preliminary total quantity of pipe and its supports

Solar temperature is not a problem, the pipe rack is inside a building.
Thermal expansion and size differences were considered.
Current option is cable tray,the option of supporting on clamps or shue supports like steel pipe had been rejected previosly.
Thank you for answer, it seems I have a bed time reading)

RE: Supporting of PE pipe

Any particular reason why PE if its inside?

And what size are we talking here?

GRE might be better and is a lot stiffer and needs less supports, ditto PVC but I usually hate PVC...

Also fire rating of PE isn't too high so might need some protection depending on what's inside.

Can't you just run in in some ducts or on the floor?

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

RE: Supporting of PE pipe

(OP)
PE pipes there are to replace super duplex stainless steel pipes because of corrosion aggressive fluids. Nevermind the fire rating, there is a cold process and nothing to burn inside.
The issue is not about choosing appropriate material, the issue is about correct understanding PE pipe routing and as a consequence correct estimation material quantity.

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