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The Automatic Backflush valve (ABF) cleans scale from heat exhangers in Domestic Hot Water (DHW) systems, avoiding costly maintenance and increasing the lifespan of the system.
The principle of automatic backflush
Heat exchangers exposed to fresh water experience accelerated scaling and fouling. This leads to overheating, increased energy consumption, a rise in operational costs and eventually system failure.
The ABF valve automatically backflushes and cleans the heat exchanger with cold water during every draw of hot water. No adjustment or manual intervention is needed.
The benefits
- Connects to all domestic hot water production systems with tank storage
- Based on proven heat exchanger cleaning principles by flow reversal familiar to industrial processes
- Worldwide drinking water compatible and certified
- Design and materials based on our extensive experience with › HT check valves used in hot water circulation
- No adjustment or manual intervention needed
- Can be installed externally or internally to the heat exchanger
ABF system applications
The valve is designed for use in several high performance appliances and systems for the production of domestic hot water (DHW).
Air to water heat pumps with DHW (split systems)
Heat Pump Water Heaters (single units)
Geothermal heat pumps with DHW
Boiler systems with DHW output
Passive direct solar hot water systems (warm climates)
Active indirect solar hot water systems (cold climates)
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