Chemical dosing stations

Field of application

• steam boilers make-up water preparation
• industrial water treatment
• wastewater treatment
• swimming pool technology

Advantages

• dosing of a wide variety of liquids
• accurate dosing of chemicals
• no start-up and shut-down intervals
• dosing is uniform from start to stop
• instruments indicating when the chemical is running out facilitate handling

Operating principle

The chemical dosing station consists of three main units:

- chemical storage tank

- chemical dosing pump

- and an injector connected to the pressure line

The chemical dosing pumps are electrically driven. The drive unit uses a diaphragm or piston to pump the dosed chemical through double-sealed valves. For highly viscous substances, a spring-loaded ball valve is installed.

The operation of the dosing pump is controlled by an electric control unit, which allows the required dosing quantity to be set. External control signal reception and fault indication are available as options. In the case of externally controlled devices, dosing can be based on a voltage-free contact signal or a 4...20 mA control signal.