HepVO
Waterless self-sealing waste valve
AS/NZS 3500 Compliant
Where you need to prevent foul sewer gases from entering a building, HepVO can be used as an alternative to conventional water traps. As it doesn’t rely on trapped water to create a seal, HepVO can't fail due to evaporation, movement or siphonage.
HepVO Benefits
Waterless trap means no siphoning or smells
Self-cleaning
Hygienic seal prevents bacteria and mould
Installs vertically or horizontally to suit tight or awkward spaces
Great for hot climates or mobile homes as the seal won’t dry out or spill
Operates silently - no gurgling or bubbling
Compact and space-saving, making it ideal for tight or inaccessible installs
Withstands high back pressure
Cuts out the need for air admittance valves
Fully compliant with AS/NZS 3500
The world’s best selling waterless trap... is now even better.
Sleeker Design
New direction of flow arrows for ease of installation
System Components
WASTE VALVE
BV1 WH 32MM
CV1 WH 40MM
RUNNING ADAPTOR
BV3 WH 32MM
CV3 WH 40MM
CV4 50MM-40MM
KNUCKLE BEND
BV11 WH 32MM
CV11 WH 40MM
Use HepVO for:
Bathroom, kitchen, laundry sinks and basins
Baths and showers
Washing machines and dishwashers
Recreational vehicles - campervans, caravans, boats
Holiday homes & hot climates where evaporation in traditional traps leads to lost seals.
Drainage from condensate discharge and unvented boiler systems
FAQs
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HepVO is a self-sealing, waterless waste valve that prevents foul sewer air from entering living spaces. It replaces traditional p-traps and retains its seal even when fixtures are unused for long periods.
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HepVO uses a flexible elastomeric membrane that opens under water pressure and closes immediately after discharge, maintaining an airtight seal under normal conditions.
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HepVO is suitable for basins, baths, showers, sinks, bidets, urinals, HVAC condensate drains, recreational vehicles, and unvented hot water systems.
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Yes. HepVO can be installed either vertically or horizontally using appropriate adaptors, which makes it ideal for tight spaces or space-saving installs under sinks and baths.
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Yes. HepVO is certified to ATS 5200-047:2005 and holds a WaterMark Licence (WMKT20062) for use in Australia.
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Yes. Because it doesn’t rely on a water seal, HepVO remains effective even if a fixture isn’t used for long periods or in hot conditions where water in conventional traps would evaporate.
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Yes. HepVO actively allows air into the system under negative pressure and reseals automatically, eliminating the need for secondary venting or branch air admittance valves.
Ready to install HepVO?
