Balancing domestic heating systems with the new RAS-B2 Danfoss Dynamic Valve

Balancing domestic heating systems with the new RAS-B2 Danfoss Dynamic Valve

The launch of the RAS-B2 Danfoss Dynamic Valve is designed to make balancing domestic heating systems easier and faster.

Unlike other TRVs, which only act as flow limiters, this latest addition to the Danfoss TRV family features a differential pressure controller. This ensures that pressure drops over the valve remain at a constant level, so flow through the valve is maintained at both full (winter) and partial (autumn/spring) loads. Additionally, pre-setting of the desired flow is done on the valve, rather than on the lockshield, which it is estimated could save installers up to two hours of valuable working time. Thanks to this innovative product, heating installers can now make sure a system is correctly balanced in a fraction of the time it would normally take.

The new RAS-B2 is specially designed by Danfoss to enable fast and simple hydronic dynamic balancing. To make life even easier, it is also featured on the Danfoss Installer App. Using this time-saving tool, installers can calculate, record and document the correct flow and subsequent setting for each radiator on their smartphone or tablet.

Currently the only 100% pressure independent valve demonstrating a constant flow in all conditions, the Danfoss RAS-B2 ensures each radiator receives an equal flow of hot water. As well as optimising end-user comfort, this means that the return temperature is lower (condensing boiler efficiency is best at below a return temperature of 55°C) and the pump can run at a lower speed.

Industry research suggests that between 80 and 90% of heating systems in Europe are unbalanced – which, as any heating professional knows, can result in the common complaints of noisy radiators and uneven heating. To address this, updates to Part L in 2021 are expected to include an increased legal requirement to prove that domestic heating systems are well balanced. Modern, high efficiency controls that meet the new standards will also be required as part of a boiler replacement, so fitting simple valves will no longer be an option for installers

Gareth Ash, Marketing Manager at Danfoss, says: “By launching the RAS-B2 Dynamic Valve now, Danfoss is offering installers a simple and future-proof solution that will satisfy their customers’ needs today and comply with forthcoming regulations to make existing UK homes more energy efficient as we move towards the ultimate goal of Net Zero in 2050.”

The new RAS-B2 Danfoss Dynamic Valve is available in a range of convenient radiator packs, including RAS-C2 liquid sensor, and with a choice of 10 or 15mm fittings to suit different installation requirements.

For more information, visit www.danfoss.com

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