What is a Differential Pressure Regulator?

What is a Differential Pressure Regulator?

This regulator initiates cleaning on the basis of the differential pressure between the dusty and clean gas sides of the filter.

Where are they used?

The 8349110 series of regulators can be used in combination with the 83490 series of electronic pulse control units to automatically adapt the cleaning to the dust loading. 

How does it work?

A dust-resistant piezoresistive pressure sensor measures the differential between the clean and dust sides of the filter system, which depends on the build-up, and provides a continuous digital readout. When the pressure drop across the filter reaches the preset upper limit, the regulator actuates the cleaning valves by means of the control system. All of the settings can be programmed with the buttons

The host pulse control unit continues to operate until cleaning has progressed to the extent where the preset limit is reached. Any after-cleaning programmed is then started. Its duration is adjustable. Two other switching points, Alarm 1 and Alarm 2, set above or below the set points as required, can be used to give an alarm in the event of faults.

The switching outputs can also be operated manually. The regulator can be switched between 0 to 10 V, 0 to 20 mA or 4 to 20 mA analogue output signals and can be operated off 230 V a.c. or 24 V d.c. The unit conforms to the Electromagnetic Compatibility Directive 2014/30/EU and the Low Voltage Directive 2014/35/EU.

What are the benefits of Differential Pressure Regulators?

This type of control extends the life of the filter media and valves. Another bonus is considerably reduced air consumption.