Hadex Dosing units

Secure your drinking water system with a fully automatic flow controlled Hadex Dosing Unit. Our Hadex disinfection treatment reduces and prevents the growth of bacteria, algae and other micro-organisms. As with any disinfectant, the correct dosage is essential for proper functioning.

Hadex® automatic dosing units are available for 10 and 25 litre Hadex® cans. The units are proportionally controlled by pulse generating flow meters. All dosing units can be customised according to your own specifications. A major advantage of our HDU is its standard packing, which is designed to be used as a dosing container. Making it safer and easy to use.

Part number Flowmeter Capacity nominal Capacity Maximal
  (inch / mm) (Qn m3/hr @ ΔP 0,25 bar) (Qmax m3/hr @ ΔP)
HDU25-1601-25C 1” 3,5 5
HDU25-1601-30C 11/4” 5 10
HDU25-1601-40C 11/2” 10 15
HDU25-1604-40C 2” 15 30
HDU25-1605-65C DN65 25 50

Extra options

For larger flows, especially in bunker systems, electromagnetic flow meters are available too. These meters have no moving parts. The dosing units can also be controlled on base of free chlorine concentration. For this, an in-line chlorine measurement unit is integrated. Contact our Sales Engineers for information on a possible configuration for your situation.

Hadex® dosing units are commonly used at three freshwater system points:

  1. In the watermaker product line
  2. In the freshwater bunker line
  3. After the hydrophore pumps (for re-chlorination of the distribution system)

FAQ - Frequently Asked Questions

More FAQ's
  • PDS Hadex dosing unit

    Download our datasheet (PDF 328 KB)

  • Hadex application data sheet

    Download our application data sheet (PDF - 5,6 MB)