Attention to every detail
Developing solutions for you,
today and into the future.
Attention to every detail
Developing solutions for you, today and into the future.
Innovative Construction Materials
DURGO Air Admittance Valves
Durgo Air Admittance Valves
An innovative air admittance valve designed as an alternative to conventional vent piping in building drainage systems.
DURGO Air Admittance Valves (AAVs) provide an alternative to conventional vent piping. During drainage flow or flushing, negative pressure causes the valve to open and admit air into the system. Once the pressure is equalized, the valve closes automatically, helping prevent unpleasant odors and sewer gases from escaping.
Depending on the system design and applicable regulations, DURGO AAVs can reduce or eliminate conventional vent stacks, create more usable space within service shafts, allow for smaller shaft dimensions, and reduce the amount of horizontal vent piping required.
Durgo AAVs can be installed near sanitary wear which lead to the system to easily allow air into the system. This fixes the problem of the trap not having enough water which lead to unpleasant smells. AAVs are also used to replace VTR (Vent Through Roof) on the roof and allowing space on the roof to be utilized.
Durgo AAVs use technology from Sweden and is widely accepted in Europe to replace vent pipe for over 50 years because many advantages such as saving construction cost and time, reduce smell in the system, and reduce spread of germs in the system
Advantages of DURGO Air Admittance Valves
Simplified Vent System Design Helps simplify vent piping design for building drainage systems.
Professional Design Support Engineering support is available to assist with system design and product selection.
Reduced Installation Costs Helps reduce piping materials, labor requirements, and installation time.
More Efficient Shaft Space Reduces vent piping requirements, allowing smaller service shafts and more usable building space.
Effective Odor Control Closes automatically after pressure equalization to help prevent sewer gases and unpleasant odors from escaping.
Improved Pressure Balance Admits air when negative pressure occurs, helping maintain stable drainage flow and protect trap seals.
Helps Protect Trap Seals Helps maintain the water seal in traps and reduces the risk of sewer gases entering occupied spaces.
Versatile Applications Suitable for a wide range of sanitary fixtures and building drainage applications.
Fewer Pipe Penetrations Can reduce the amount of vent piping and roof penetrations required, subject to system design and applicable regulations.
Over 50 Years of Proven Use Based on Swedish technology with more than 50 years of use in international drainage systems.
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