connect 6'' HDPE to PVC

[FETHI36]

Due to the frequent burst of the 6” PVC lines downstream and upstream of the cartridge filters of the Ro unit because of Vibrations and PVC quality, which leads to:
-Detachment or breaking of the tie-in blinding line.
It is recommended to replace the PVC with a HDPE pipe with a high pressure class.
My question here is what adequate method we can use?

 

[IRstuff]

What pressure and what schedule PVC?

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[Dhurjati Sen]

Check joining procedure of HDPE pipes.

DHURJATI SEN
Kolkata, India

 

[LittleInch]

Method for what?

If you're removing the pvc then you don't have a joint between the two?

Or use a flange.

Give us some details please.

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

 

[FacEngrPE]

The inadequate description implies this is an industrial reverse osmosis system. The pulsing is not generated by the RP filter cartridges, but rather by either valve switching or by a positive displacement pump.
You should make sure your system is not missing a pulsation damper.

Dhurjati Sen has provided a correct HDPE butt welding procedure, you can also use HDPE fusion couplings. This will not work for a transition from HDPE to PVC.

To connect PVC to HDPE either use a transition joint or use a mechanical joint like a flange, or ring groove coupling.

 

[LittleInch]

Yet another one question poster who never replies or even logs in....

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

 

[FETHI36]

hi everyone sorry for the delay and appreciate your responses. I really have my reasons to not log in or response until now. Again i ' m very sorry.

 

[LittleInch]

That's OK.

Now you need to answer the questions we've asked.

We get s lot of one question posters who never respond so thanks for getting back to us.

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

 

[FETHI36]

Hi every one

in general i need to change this PVC spool to 6'' HDPE PN≥16 one and due to missing docs i couldn't find the best spec or class to choose.

many thanks.