Couplings, non-return valves, plugs, penstocks and valves


Welcome to the NORHAM site.

NORHAM has been designing and supplying innovative solutions for water supply, sewerage systems and the environment for over 20 years.

ISO 9001 certified in 1997, NORHAM undertakes to provide products and services of a quality beyond reproach. Couplings, seals, check valves, plugs, penstocks, regulating valves : an extensive offering.

If you have a specific requirement, please get in touch! NORHAM can provide a made-to-measure solution to suit your exact application.

Use this site to discover more about NORHAM.

Happy browsing!

Flood defence

Revolutionary, "unbreakable", the TIdeflex backflow arrester will prevent water backing up in the event of heavy storms, rising rivers, floods, etc., even in the harshest environments.

Sealing, connecting, joining, repairing pipes

Raccordement Flex Seal Plus

Make use of our broad range of multi-material fittings to assemble, repair, and connect pipes made from different materials or in different diameters.

Sealing wall penetrations

Raccordement Flex Seal Plus

Our Innerlynx penetration seal ensures freedom from leaks where a pipe passes through a wall or a bulkhead.

Plugging pipes

With our inflatable and cam-lock plugs you can plug off pipes while working on the downstream network.

Protect yourself from backflow, floods, high river levels

Stop water backing up with our polyester check valves and PVC flap valves.

Storage pond floor protection

The Flo-Plug polyester check valve has been specifically developed to go at the bottom of storage ponds. It will protect your structures in the event of rising water or gas tables.

Shut off, cut-off, flow regulation

Our range of wall mounting stainless steel penstocks are ideal for shutting off or isolating part of a circuit.

 For flow control, see our float regulator valves.



October, 14th 2013


Meet us :

Hall 5 - Stand 156


March, 12th 2013

We have redesigned our tank floor check valve FLO-PLUG®.

A new design which greatly improves flow rates, sealing capability and performance with sediments in water.

Mark 2 is now available and replaces the initial FLO-PLUG launched in 2007.

Click here for further information


July, 20th 2012

NORHAM is launching a new range of flap valves : ECOFLAP® !


Light and easy to install, ECOFLAP® protects houses from flood damage due to the backflow.

Click here for further information ...