The development of automatic revolving doors is not only due to its performance of anti-noise and dust, it is important that its energy-saving features, the revolving door entrance is the most economical efficient building entrance.
Such as a glass revolving door which the common diameter is 2m, high 2.1m, Drive only 1.7 m3 air flow through every one. Since the amount of heat exchange air is very small, and therefore all glass revolving door have a good energy saving performance.
