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The unique HepvO waterless trap from Wavin won’t lose its seal due to siphonage, evaporation, leaking or movement. And, because there’s no water, HepvO won’t gurgle. The elastomeric membrane is fixed inside a rigid body, preventing the seal from becoming dislodged. HepvO stops foul air from entering the building but admits air into the pipe system, making it suitable for branch pipe ventilation. HepvO can be installed vertically or horizontally, delivering exceptional performance where conventional traps could leave you high and dry.

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Hepvo drainage systems


Hepvo flow

The waterless space-saving trap

HepvO is quick and easy to fit and maintenance free. It's in-line design makes it ideal for pedestals, shower units, baths and under kitchen sinks installations.

When to use HepVo

When to use

Where you need to prevent foul sewer gases from entering a building, HepvO can be installed as an alternative to conventional water traps. HepvO is suitable for use on sanitary appliances, and can also be installed on discharge pipework from unvented domestic hot water systems and condensate lines from boilers and airconditioning units

How Hepvo works

How it works

HepvO is different to traditional water traps as it uses a soft silicone rubber membrane to create a seal, instead of “trapped” water. HepvO can be installed vertically or horizontally.

HepvO is available in 1 ¼” and 1 ½” dimensions. HepvO joints are compression type. Running adaptors and knuckle bends are available as part of the system.

What’s next?

Want to learn more about how HepvO could benefit your next project? Contact our Technical Design team for advice and support.
And why not take this opportunity to have a look through our downloadable product guides, certifications and other literature.

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