HD27 ejectors

Working domains

Sucction pressure up to 45000 Pa
Sucction flow up to 0.05 kg/s
Supply pressure 3 to 7 barg
Kinetic efficiency 13-70 %

HD27 ejectors are usualy work for the following domains:

Sucction pressure[Pa] vs Sucction flow[kg/s]

The HD27 Coanda ejectors have 2 main dimensions and also 3 geometric dimensions and 2 other thermodynamic supply parameters (pressure and temperature) in order to control the flow and make the necessary adjustements or each flow conditions and each customers needs.
The Coanda ejector is more complex flow device than a simple rotor fan or blower therefore the flow characteristics is done by adjustments of geometric dimension, pressure and temperature. The input temperature is critical for the efficiency of the device therefore the efficiency is not shown on the digram because is depending on the input local customer conditions.
We present only five representative diagrams sucction pressure [relative Pa] vs sucction flow [kg/s] for different "p" supply pressures [barg] as follows:

HD27_500

HD27_400

HD27_300

HD27_200

HD27_100

The diagrams were estimated using Coanda ejectors compressible invicid flow theory based on AERODIN know-how and there are not fix but closer to the experiments.

Dimensions & weight

Lenght 321 mm
Duct 40 mm
Weight up to 0.5 kg

Note:
AERODIN is reserving the right to update the data according with new theory estimation, design or technology.