Chlorine Dosing Systems are the most economical disinfection method used to eliminate bacterial contamination in water and ensure disinfection. Water disinfection is ensured by dosing liquid sodium hypochlorite (NaOCl) to the raw water via a chlorine dosing pump with suitable capacity and properties. In order to obtain sufficient disinfection in potable and non-potable water, a free chlorine content with a maximum of 0.5 mg/L (ppm) must be provided.
Depending on the intended use, the suitable option can be selected among the following chlorine dosing systems:
- On/Off Controlled Dosing: Dosing systems running on an external contact/signal input.
- Proportional Controlled Dosing: Proportional dosing systems running in proportion to the signals received from a flowmeter with pulse output.
- Free Chlorine Measurement Dosing: These are systems that measure the amount of free chlorine in the water online (in real time) using the Free Chlorine Meter’s measuring probe. The free chlorine concentration in the water is measured in mV (millivolts) or mg/L (ppm) and dosing takes place automatically according to the value set on the device. When the free chlorine concentration reaches the set value, the system will stop automatically to prevent excessive dosing of chlorine. This system is preferred for applications where precise chlorine dosing is required.