High Quality Hospital Ward Rectangular Low Noise Centrifugal Air Duct Fan Silent New Fan

High Quality Hospital Ward Rectangular Low Noise Centrifugal Air Duct Fan Silent New Fan

AC vs. EC
AC motors are designed to operate at a certain point on their performance curve which coincides with their peak efficiency. Either side of this operating point, the efficiency can drop off considerably. EC motors on the other hand have an almost flat efficiency curve which varies relatively little across the speed range, a range which is not limited by synchronous speeds or as susceptible to voltage fluctuations as an AC motor. This makes the EC fan much more flexible in terms of being able to use the same product to match the performance requirements of different applications while still benefitting from increased efficiency.

The available range of AC input EC fans is expanding all of the time. There are axial and centrifugal fans, forward curved and backward curved, single inlet and double inlet, single phase and three phase and they are often directly interchangeable with their AC equivalents. EC offers the OEM more than just energy-efficiency. It is an opportunity to bring new technology and functionality to their products. With ever-increasing demand for energy efficient systems, when it comes to fan based products, there’s no reason for manufacturers not to have any in their portfolio.

Rectangular Duct Fan Parameters

Easy installation via 20mm standard flange

Can be installed in any position

The speed is 0-100% infinitely variable by auto transformers or electronic control

Compact and space saving design

Extremely low starting currents

Motor protection by thermal contacts in motor windings as standard

The translocation type motor and impeller have been used for the product, which is convenient for cleaning and ,maintenance

Forward curved impeller with outer rotor ensures the high-performance of the fan; and the motor bearing in a sealed condition, together with safety, reliability and long service life

Why choose us?

We are sole International sales of the factory, we can help to control and protect the market of clients.

We integrates different kinds of products for air management.

We are independent of factory. This make us standing in the position of client instead of factories. It will solve your problem of communication with factory.