AE Aeropress/Aerovac pressure regulator – overpressure and underpressure regulation
Regulates the pressure upstream or downstream of compressors and protects pipework from excessive overpressure or underpressure.
Three functional variants
The Aeropress, Aeropress 10S and Aerovac cover start-up pressure relief as well as positive and negative pressure control.
Aeropress/Aerovac: Pressure regulation and start-up relief on the compressor
The pressure regulators in the AE series perform various functions in compressor systems. Aeropress is installed directly downstream of the compressor and combines start-up relief with the maintenance of the set system pressure. Aeropress 10S protects the pressure-side piping system from excessive overpressure during operation. With an optional solenoid valve, this version can also be used for start-up pressure relief.
Aerovac is located on the suction side, directly upstream of the compressor. The vacuum regulator maintains the set vacuum level and protects the pipework from excessive vacuum. An optional start-up pressure relief function is also available for Aerovac.
All three versions are specified for air and non-corrosive gases, with a permissible pressure rating of up to 2 bar(a) and operating temperatures ranging from −15 °C to +120 °C. Connection sizes and types vary depending on the variant.
Rated up to 2 bar(a)
Permissible pressure rating.
Connections from 2″ to 4″
Threaded or flanged, depending on the type.
-15 to +120 °C
Specified operating temperature range.
For air and gases
Non-corrosive gases only.
Regulating overpressure or underpressure
Appropriate function depending on the installation location.
Solenoid valve optional
Start-up function depending on the version.
Advantages and models of the Aeropress/Aerovac pressure regulators
Three functions for compressor lines
System pressure adjustable at the control regulator
Flexible installation, straightforward maintenance
Technical specifications of the Aeropress/Aerovac pressure regulators
An overview of the key specifications for the three models – from pressure and temperature to media, connection sizes and optional start-up relief.
Design and operation of the Aeropress/Aerovac pressure regulators
Main valve, diaphragm chambers and control regulator
The pressure regulators operate using a main valve, a diaphragm-controlled actuator, nozzles or pressure channels, and an adjustable control regulator. The system pressure is fed from the main line to the control regulator via a control pressure connection. A 750 mm long hose with a G3/8″ external thread is specified as part of the scope of supply.
The force that opens or closes the main valve is generated via the control regulator and the respective diaphragm chamber. During installation, no stress from the pipework must be transferred to the valve body. The valve can generally be installed in any position; however, an overhead position with the diaphragm housing facing downwards is not permitted.
How the Aeropress, Aeropress 10S and Aerovac work
On the Aeropress, the main valve is open in the rest position. During start-up, the air initially delivered flows into the atmosphere. As the line pressure rises, the force of the diaphragm closes the valve. In subsequent steady-state operation, the control regulator opens the control path at the set system pressure, so that the main valve limits the pressure by allowing flow to escape.
The Aeropress 10S is closed in the idle position. It opens as soon as the set system pressure is reached, thereby protecting the pressure side from excessive overpressure. An optional solenoid valve also enables start-up pressure relief. Aerovac is installed upstream of the compressor. When the set vacuum level is reached, its control principle allows atmospheric air into the diaphragm chamber and opens the main valve, thereby maintaining a constant vacuum.
Technical specification and enquiries regarding Aeropress/Aerovac
When selecting the appropriate model, the following factors are particularly relevant: the required function, the installation location (before or after the compressor), the medium, the system pressure or vacuum, the flow rate, the operating temperature, and the connection size and type. Please also let us know whether a start-up relief valve with an optional solenoid valve is required.