MDPE Pipe Fittings

Our MDPE water pipe fittings are available in sizes 20mm to 125mm.

These fittings are approved for above and below ground use, and can be used for potable (drinking) water applications with blue and black MDPE pipe.

MDPE compression fittings are simple to install. To ensure the fitting nuts are sufficiently tightened, we recommend using a strap wrench.


Pressure Rating 16 bar
Safety Factor 3
Operating Temperature 20°C-18 bar, 45°C-10.8 bar, 70°C-3,4bar
Water Standards UNI 9561-9562, UNI EN 712-713-715, UNI ISO 7/1, ISO 14236, UNI 2233


All of our MDPE compression fittings have a Safety Factor of 3, ensuring that spikes in water pressure within a water pipe system are catered for. The majority of our fittings have a pressure rating of 16 bar, however there are a few exceptions which are as follows:

    • Female adaptor 75mm x 2" to 110mm x 4" - 10 bar
    • 90° female threaded tee from 75mm x 2" to 110mm x 4" - 10 bar
    • 90° female threaded elbow from 75mm x 2" to 110mm x 4" - 10 bar
    • Safety factor based upon maximum working pressure at the temperature of 20°


WRAS Approved Product - sold by Pipestock

WRAS approved (where applicable)


Basic Fitting Guidelines:

These fittings are simple to install as demonstrated by the simple instructions below. However, we always recommend reading the manufacturer's instructions for a more detailed overview.

      1. Loosen off the retaining nut
      2. Insert an MDPE pipe liner into the pipe
      3. Push the pipe past the O ring until you hit the stop
      4. Tighten the nut with a universal strap wrench

The pipe liner and strap wrench are available in our MDPE Accessories and MDPE Tools sections, respectively.

 MDPE Pipe Fittings - from Pipestock


If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.