AE start-up relief valve, Aeromat type – up to 2 bar(a), DN 50–200
Opens the pressure line to atmosphere when the compressor starts up and closes automatically once the required pressure has been built up.
Adjustable closing time
The valve plug position and nozzle adjust the closing process to suit the system.
Aeromat: automatic start-up relief valve for compressors
The AE Aeromat start-up relief valve is fitted directly downstream of the compressor in the pipework. During the start-up process, it opens the pressure-side pipework to atmosphere: the main valve is open in its idle position, allowing the air initially delivered to escape via the vent.
As the flow rate increases, dynamic pressure builds up in the pipework. This pressure enters the upper diaphragm chamber via a nozzle and closes the valve. A line pressure of approximately 100 mbar is required for the closing process. The closing time can be adjusted to suit the system via the valve cone position and the nozzle.
The Aeromat is designed for air and non-corrosive gases. The permissible pressure rating is up to 2 bar(a), and the operating temperature range is from -15 °C to +120 °C. Threaded, square-flanged and larger DN versions are available, ranging from DN 50 to DN 200.
Rated up to 2 bar(a)
Permissible pressure rating.
Nominal diameters DN 50–200
Threaded and flanged versions.
-15 to +120 °C
Specified operating temperature range.
For air and gases
For non-corrosive gases.
Self-closing mechanism
Closes at a line pressure of approximately 100 mbar.
Solenoid valve (optional)
Affects opening and closing during operation.
Advantages and versions of the Aeromat start-up relief valve
Automatic relief during start-up
Closing behaviour adjustable to suit the system
Flexible installation and straightforward maintenance
Technical data for Aeromat start-up relief
Below you will find the technical specifications for the Aeromat start-up relief device. This information will help you quickly find and select the right model for your system.
Design and operation of the Aeromat start-up relief valve
Main valve, diaphragm chamber and adjustment elements
The Aeromat start-up relief valve comprises a main valve, an adjusting screw for the valve cone position, a nozzle and an upper diaphragm chamber. The main valve is open in its rest position. The valve opening can be adjusted using the adjusting screw; turning it inwards reduces the opening, so that the valve closes even at lower flow rates.
It is installed directly downstream of the compressor. The valve can generally be fitted in any orientation. However, it must not be installed upside down with the diaphragm housing facing downwards. During installation, no stress from the pipework must be transferred to the valve body.
How Aeromat reduces the load on the compressor start-up
The Aeromat start-up relief valve comprises a main valve, an adjusting screw for the valve cone position, a nozzle and an upper diaphragm chamber. The main valve is open in its rest position. The valve opening can be adjusted using the adjusting screw; turning it in reduces the opening, so that the valve closes even at lower flow rates.
It is installed directly downstream of the compressor. The valve can generally be fitted in any orientation. However, it cannot be installed in an overhead position with the diaphragm housing facing downwards. During installation, no stress from the pipework must be transferred to the valve body.
Technical design and enquiries regarding the Aeromat
When selecting the appropriate Aeromat model, the following factors are particularly relevant: compressor or unit type, medium, maximum line pressure, flow rate during start-up, operating temperature, nominal diameter, connection type, desired closing time and installation situation. Please also specify whether opening and closing during operation should be controlled via an optional solenoid valve.