Two-pipe heating and cooling systems are characterized by changing conditions due to valves opening and closing depending on the demand for heating or cooling. This continuously causes flow and differential pressure changes.
Without proper measurements, such systems suffer from uneven heat distribution, noise and energy inefficiency. Automatic balancing valves are the best option for these types of systems. Once installed, they optimize the system under all possible loads by controlling the differential pressure. In combination with pre-setting valves ensuring the correct flow through each radiator, and floor heating loop or cooling Terminal Unit, the system is optimized for the best possible temperature control, energy savings and noise reduction.
Danfoss offers a broad range of automatic balancing valves, partner valves and related accessories.
Less complaints
The right balance will be there under all loads, resulting in less to no complaints regarding uneven heat distribution or system noise.
Better temperature control
With the automatic balancing you will achieve better temperature control in the rooms.
Energy savings
No overflows will occur in the system anymore, resulting in no waste of energy.
Save on commissioning
There will be no measuring needed for adjustments, which will mean significant savings on commissioning costs.
Effective project planning
Projects can be handled and handed over in stages, making project planning and execution easier.
This animation shows how automatic balancing valves can be a great solution to improve the performance of a heating system and reduce costs at the same time.
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GreenCon on/off room thermostats are used for room temperature control in fan coil units cooling and heating systems. By controlling room temperature in accordance with the temperature desired by user, GreenCon provides high energy efficiency while upholding and ensure optimal thermal comfort in the room.
ASV automatic balancing valves provide a dynamic balancing solution for two-pipe heating or cooling applications. The riser-mounted valves eliminate pressure fluctuations occurring in variable flow systems at partial load conditions. For a proper hydronic balance the valves should be combined with pre-setting valves.
AB-PM is a combined balancing valve providing both differential pressure control and flow limitation. The valves eliminate pressure fluctuations at full load and partial load conditions and can be equipped with an actuator to allow zone control.
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Centrally heated apartment buildings often suffer from variations in room temperatures due to inefficient and unbalanced heating systems. This can lead to unhappy residents complaining about lack of comfort or high energy bills. Swedish cooperative organization HSB aimed to use an intelligent monitoring and control solution to improve the energy efficiency and indoor comfort of a 12-apartment block that is connected to district heating.
Too warm, too cold, and no chance to regulate the heating inside the individual apartment – those were the issues facing the residents in a 9-storey apartment building in Tallinn, Estonia. By upgrading the existing one-pipe system into a two-pipe system with automatic hydronic balancing, the residents now enjoy improved comfort and 25 percent savings on the energy bill.
Some years ago, the radiators in five 9-storey apartment buildings in Milan, Italy were equipped with thermostatic radiator valves. Not until the system was fitted with automatic balancing valves, however, did the benefits of the new TRVs materialize in terms of 14 percent energy savings, less noise from the heating system and improved indoor comfort for the residents.
Energy efficiency and indoor comfort are top of mind among building owners today. Also in Sweden, where the housing association “Bostadsbolaget AB” in Mjölby took action when they were confronted with a rising energy bill due to insufficient heat distribution in a 10-storey residential building.
During the past few years a huge demand for sustainable living has emerged. The pressure on creating environmental friendly or green buildings is higher than ever. Also for existing buildings the need for not leaving a big blueprint on the globe is becoming increasingly important. In Jönköping, Sweden, the community living in the Västerkåkar neighborhood is going forward. In 2013 substantial changes to the communal heating system in the buildings in four streets showed that a green example can be set, in just a couple of steps.
The tallest building of the EU now resides in Wroclaw in Poland. As a beautiful landmark to modern architecture, high user comfort and sustainable practice, the 212 meter high Sky Tower forms the pleasant setting for thousands of people living and working in the building.
Branch should be balanced with a differential pressure controller for dynamic hydronic balance, with following characteristics:
Product characteristics:
DN 15-25:
DN 32-40:
DN 50:
DN 65-100:
Automatic balancing partner valve with shut-off and flowlimitation to be mounted in the supply line and connected to automatic balancing valve with impulse tube.
Automatic balancing partner valve with shut-off to be mounted in the supply line and connected to automatic balancing valve with impulse tube.Valve should be delivered with threaded impulse tube connection.
Automatic balancing partner valve with presetting, flow-verification and shut-off to be mounted in the supply line and connected to automatic balancing valve with impulse tube.