In order to make the water drinkable, the Dosatron ACS or NSF certified metering pumps, installed in line with the water pipe, inject a dose of chlorine (NaClo, CaClo) which allows the destruction of organic matter such as viruses and microbes contained in the water, in proportion to the flow rate.
Since a large part of the chlorine is needed to neutralize these organic materials, the dose of chlorine delivered by the metering pump will allow a part, called free residual chlorine, to remain available to treat possible future contamination of the water in the network or in the homes.
According to the WHO, in drinking water, the free chlorine concentration of the treated water should be 0.2 to 0.5 mg/l.
Dosatron chlorine dosing pumps certified by the ACS (Link 1 | Link 2 | Link 3 | Link 4 | Link 5) comply with the quality requirements set out in the French Public Health Code (CSP) transposing Directive 98/83/EC of 3 November 1998 on the quality of water intended for human consumption.
The validity of a certificate can be verified by contacting the issuing laboratory, or by consulting the list of valid health certificates of conformity published by the Carso Group laboratories.
Installed on the water network, our chlorine dosing pump uses water pressure as its sole driving force. Thus actuated, it sucks up the concentrated product, doses it at the desired percentage, then mixes it with the driving water. The resulting solution is then sent downstream. The dose of product injected is always proportional to the volume of water flowing through our dosing pump, regardless of variations in flow rate or network pressure.
The D3WL ACS chlorine dosing pumps have also obtained the mandatory French approval (ACS) for all equipment in contact with water intended for human consumption. See more
These chlorine dosing pumps are characterized by: