# HD40 ejectors

## Working domains

Sucction pressure | up to 35000 | Pa |
---|---|---|

Sucction flow | up to 0.12 | 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 **HD40** 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:

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 | 486 | mm |
---|---|---|

Duct | 70 | mm |

Weight | up to 1.5 | kg |

Note:

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