Actuation technology reduces size of miniature solenoid valves by up to 54 per cent

06 October 2011

Bürkert’s new TwinPower actuation technology enables solenoid valves to be compact, while retaining the same power output. Compact, powerful, and energy-efficient, TwinPower increases power density in solenoid valves by means of two coils, a design that is being used for the first time in Burkert’s newly launched types 6624 and 6626 media-separated, miniature solenoid valves.

The higher power density resulting from the intelligent combination of two coils in TwinPower actuation systems enables the valves to be much more compact in comparison with conventional actuator solutions; crucially, without any loss of performance. For example: the power of a valve of dimensions 16 x 26 x 46mm (BxDxH) can now be packed into a 10 x 20 x 44mm envelope. This corresponds to a reduction in design space of 54 per cent.

In addition to increased power density, the TwinPower technology also makes significant energy savings possible. Bürkert valves equipped with the technology have pulse -and-hold electronics as standard. This reduces energy consumption by 75 per cent, 100ms after switching on.

The resulting power reduction not only has a positive effect on energy efficiency; at the same time it also reduces heat emission from the valve, resulting in a reduction in heat transfer into the medium.

In addition, the surface-to-volume ratio of the valves is optimised to enable the valve coils to release heat into the surrounding atmosphere far more quickly than could previously be achieved: consequently the amount of heat transferred into the medium is reduced even further.

Another feature of TwinPower is the integrated LED in the valve top showing the valve switching status. A benefit that was only optional before when incorporated into the cable plug but is now available integrated into the valve irrespective of electrical connection choice.