HepvO waterless trap

31

Oct

2025

DataCentres Ireland 2025

Leading plumbing and drainage solutions provider Wavin has launched a new version of its popular HepvO waterless trap. The updated design retains its industry leading sanitary seal while delivering an even easier, more intuitive installation. A sleeker body and clearly marked direction-of-flow arrows help installers get orientation right first time, especially in tight spaces and horizontal set-ups.

HepvO waterless trap

As the original, world-first waterless trap, HepvO offers a hygienic, practical alternative to traditional U-bend traps, which can lose their water seal by evaporation, siphonage, leakage or movement. HepvO’s self-sealing elastomeric membrane performs the same function, without the drawbacks, so waste matter is less likely to build up and cause smells or blockages. It has been rigorously tested and is resistant to common household chemicals.

HepvO also admits air to the drainage system under negative pressure and then reseals, so it operates silently and avoids the ‘gurgling’ often associated with siphonage and a breached water seal.

Branch pipe ventilation for commercial projects

HepvO can also act as an air admittance device on branch lines. In many scenarios this removes the need for a separate 50mm AAV, simplifying design and saving space and time.

Peace of mind

The improved HepvO now comes with a 15-year guarantee, making it a dependable, long-life choice for contractors. Wavin has also made the conscious decision to move away from single use plastic packaging to a more sustainable cardboard solution, part of a company-wide effort to minimise its impact on the environment.

Smartply
Multiple uses

HepvO’s compact in-line design fits horizontally or vertically, suiting everything from baths and showers to kitchen sinks, ideal where cupboard or service space is at a premium and for properties left vacant for periods. The range includes 32 mm and 40 mm valves, running and knuckle adaptors, plus a 32 mm tundish kit for unvented hot water systems.

Key benefits for contractors

  • Faster, cleaner installs with direction-of-flow arrows; compact in-line form.
  • Branch ventilation without separate AAVs; straighter runs and fewer fittings. Extend 32 mm branches up to 3m; reduced testing on completion.
  • Silent operation; unaffected by siphonage.
  • Fewer blockages; resistant to common cleaners and detergents.
  • Backed by a 15-year guarantee.
HepvO
HepvO
Industry support

Declan Conlon, Wavin Sales Director, said: ‘The updated HepvO offers a sleek, modern look and comes with a 15-year guarantee, making it a trusted choice for installers. With over 30 years of proven performance, it’s a product you can have confidence in, and which delivers such versatility across a range of applications, both domestic and commercial.”

 

To find out more, visit www.wavin.ie or contact projects.ie@wavin.com

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