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Frequently asked questions

1 - How do you size a PE water-conveyance pipe?

2 - What are the rules for decalibration of a PE water-supply pipe?

3 - What is the expansion coefficient of PE?

4 - What is the radius of the minimum curve of a PE pipe?

5 - Can PE piping be installed overhead?

6 - What information is there on the marking of PE piping?

7 - How do you size a PVC sanitation pipe?

8 - What are the limits for burial of PVC sanitation pipes?

9 - How do you dimension a potable-water PVC pipe?

10 - What is the expansion coefficient of PVC?

11 - What are the decalibration rules for a PVC water-conveyance pipe?

12 - What is the minimum curve radius for a PVC pipe?

13 - What is the resistance to depression of PVC water-conveyance pipes?

14 - Can PVC pipes be installed overhead?

15 - How are PVC pipes assembled?

Before joining, ensure that the pipes are cut at a right angle to the axis and correctly chamfered (an angle of 15-30°). Re-chamfer if necessary, particularly after cutting. Check that a socket depth mark is inscribed on the male end of the pipe; re-mark it after cutting.

Bonding:

  • Roughen the surface of the male end and the sockets using sandpaper (not a file). Clean both elements to be joined, using a rag soaked in the detergent supplied by the manufacturer.
  • Ensure that the ends are dry (do not bond if very wet).
  • Apply the adhesive lengthwise in the socket first, and then on the male end.
  • Fit together immediately, correctly aligned and without rotation, up to the mark.
  • Wait at least 30 minutes before handling the pipes (for 30 minutes to 1 hour in temperatures of 10° and below).
  • Wait 24 hours before pressurizing.

Joint assembly:
  • Wipe the inside of the socket and the exterior of the male end.
  • Check that the joint housing and joint ring are clean and in the correct position in the rim.
  • Coat the male end with lubricant (do not lubricate the joint or its housing).
  • Fit together properly, lengthwise, up to the mark (use a crowbar and wooden wedge for large diameters).


16 - What does SDR mean?


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BI-OROC®

To get the most from BI-OROC®, compliance with certain rules is essential.

BI-OROC PN 16 assembly table


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NF label certificates

Sanitary compliance documentation


Consult our interactive BTP (public works & civil engineering) catalogue

What is the radius of the minimum curve of a PE pipe?