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Key Features / Tech Specs:

  • Material: PVCu (polyvinyl chloride – unplasticised)
  • Temperature range 0°C to 60°C, dependent on pressure
  • Pressure range: 9 bar to 16 bar, dependent on temperature
  • Wide range of chemical resistance, see below
  • WRAS approved, where applicable
  • BSI Kitemark, where applicable
  • Pipes manufactured in accordance with BS3505 and EN1452-2
  • Pipe fittings manufactured in accordance with BS4346 Part 1
  • Threaded PVC pipe fittings conform to the requirements of BS 21 / DIN 2999 / ISO 7
  • Smooth bore resists limescale build-up, gives superior flow, is abrasion resistant and corrosion free
  • Design life of 50 years based on maximum pressure at 20°C
  • Non-toxic - suitable for cold potable water
  • Material cost (43%) labour install cost (60%) savings over metal pipe systems
  • Fully matched system
  • Not suitable for use with compressed air

Technical Info:

Pressure ratings for plastic pipework systems are always quoted at 20°C, it is a fundamental principle of such systems that if the temperature is increased then the pressure rating must be reduced. PVC systems should never be used for temperatures in excess of 60°C.

The following chart gives a rough guide as to the temperature/pressure relationship of PVC pipework.

  20°C 30°C 40°C 50°C 60°C
Class C 9.0 bar 9.0 bar 5.2 bar 3.5 bar 2.0 bar
Class D 12.0 bar 9.6 bar 6.9 bar 4.6 bar 2.6 bar
Class E 15.0 bar 12.0 bar 8.7 bar 5.8 bar 3.3 bar


IMPORTANT: The technical data given in this website is for preliminary information purposes only and is published without guarantee. All line drawings are for illustrative purposes only and should not be regarded as wholly accurate in every detail. We reserve the right to withdraw or to alter the specification of any product without notice. For more information, please consult our Terms of Business.


Useful Info:

The pipes and fittings in this section are all British Standard. This standard is based on the nominal bore of the pipes, not the diameter. For clarification please see the table in each pipe class in the drop down marked [+] More Information. If in doubt please ring us to avoid ordering the wrong products.

PVC is an excellent thermoplastic pipe system used in many industries for the transportation of liquids, including those containing: acids, alkalis, chemical processing, sewerage and water treatment.

PVC is non-toxic and has been proven to be resistant to a wide range of diluted acids, alkalis, salts and water soluble solvents. However, it is not resistant to aromatic or chlorinated hydrocarbons.

PVC products are easy to identify due to their dark grey colour.

Frequently Asked Questions:

Q: What does PVCu stand for?

A: Polyvinyl chloride - unplasticised.

Q: Is PVCu the same as PVC?

A: Strictly speaking, no. However, PVC has become the adopted generic term. PVCu is therefore referred to as PVC, as well as uPVC.


If you require any further information then don’t hesitate to ring us here at Pipestock on 0845 634 1053. We’re always happy to help!

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