Dosing Units DOS DDA for High-end Applications

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Herco Wassertechnik GmbH

Neckar, Germany

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Complete pre-assembled system for the storage and dosing of liquid active substances in water-bearing systems, including dosing pump, dosing tank, dosing hose, suction lance, and control cable. The superior diaphragm dosing pump DDA is used for automated, continuous, or intermittent dosing of chemicals that do not outgas. It is outfitted with a speed-controlled stepper motor drive and clever control electronics. It includes an automatic venting feature. When the dosing pump is completely extended, it always operates at its highest level of dosing precision. The stepper motor drive enables low-pulsation and constant dosing, even at very small dosage amounts.

                                                            Suction lift max
                                                            6.0 mWS
                                                        
                                                            Ambient temperature
                                                            0 – 40 °C
                                                        
                                                            Conditions of use
                                                            Can be used for dosing liquid, non-gassing or outgassing active substances. Resistance of the materials to the chemicals used must be checked.
                                                        
                                                            Temperature Dosing medium
                                                            0 – 40 °C
                                                        
                                                            Protection class
                                                            IP 65

The application of DOS DDA Dosing Units

Excellent dosing station with a greater range of functions for tough industrial applications.
Excellent for many general uses, such water-meter controlled dosing or biocide dose.
Excellent for outgassing media such as sodium hypochlorite.
suitably formulated for closed systems dosage delivery (high concentrations and tiny quantities).

Dosing Unit Benefits

Sturdy, impact-resistant tank with level markers positioned on the side.
Because the pump always operates at full stroke length, there is excellent dose accuracy.
The dosage is constant and uniform because of a continuous suction stroke and a variable pressure stroke.
reduced pressure peaks lead to a longer service life.
Slow Mode Auto Venting to Release Media Outgassing.
Comes with extras like a suction lance, dosing pipe, and cable.

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