200 pcs 50Nm Modulating DC24V Electric Actuators for Chlorine Scrubber at Water Treatment Plant in South Africa
Project Overview
A South African water treatment facility deployed chlorine dioxide scrubbing to reduce harmful halomethanes and ensure safe drinking water for a growing urban population.
Background
With continued world population growth and accelerated urbanization, the provision of drinking water and sanitation remains a critical issue for many cities. Chlorine dioxide is the preferred disinfection method — it significantly reduces total halomethane concentrations in tap water.
The water treatment plant required automated valve control across the chlorine dioxide scrubber system to precisely regulate chemical dosing, ensuring effective disinfection while minimizing chemical waste and operator exposure.
Project Specifications
| Country | South Africa |
| Application | Chlorine Dioxide Scrubber |
| Total Units | 200 pcs |
| Actuator Type | Modulating Electric Actuator, 50Nm |
| Voltage | DC 24V |
| Control Signal | 4–20mA Modulating |
| Purpose | Chemical dosing & flow regulation |
Our Solution
MTD delivered 50Nm modulating DC24V electric actuators — enabling precise chemical dosing control for the chlorine dioxide scrubber system.
Precise Chemical Dosing
4–20mA modulating control enables proportional valve positioning to accurately regulate chlorine dioxide injection rates — optimizing disinfection while minimizing chemical consumption.
200 pcs 4–20mADC24V Safe Operation
Low-voltage DC24V power supply ensures safe operation in wet chemical environments — eliminating the risk of electrical hazards near chlorine dioxide handling equipment.
DC 24V SafeHalomethane Reduction
Precise flow control of chlorine dioxide ensures effective reduction of total halomethanes in tap water — meeting South African drinking water quality standards.
Water Quality ComplianceCorrosion-Resistant Build
Chlorine dioxide is highly corrosive — MTD actuators feature sealed enclosures and chemical-resistant materials to withstand the aggressive scrubber environment.
Sealed Chemical-ResistantProducts Used
50Nm modulating DC24V electric actuators — designed for precise chemical dosing control in water treatment scrubber systems.
50Nm Modulating DC24V Electric Actuator
- Actuator Torque50 Nm
- VoltageDC 24V
- Control Signal4–20mA Modulating
- ApplicationChlorine Dioxide Dosing
- EnvironmentCorrosive Chemical
- Quantity200 pcs
Chlorine Dioxide Disinfection Benefits
Chlorine dioxide offers superior disinfection performance with significantly lower harmful byproduct formation compared to traditional chlorine.
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Reduced Halomethane Concentration
Chlorine dioxide significantly reduces total halomethanes (THMs) in tap water — a critical health requirement for municipal drinking water systems.
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Swimming Pool Disinfection
Excellent disinfection effect on swimming pool water — eliminating chloramines that cause eye irritation and respiratory issues.
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Industrial Wastewater Treatment
Effective for treating industrial wastewater with high organic loads — breaking down phenols, cyanides, and other contaminants.
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No Trihalomethane Formation
Unlike free chlorine, ClO₂ does not react with organic matter to form carcinogenic trihalomethanes (THMs) — safer for public health.
Need Actuators for Water Treatment Chemical Dosing?
From chlorine scrubbers to fluoride dosing systems, MTD provides modulating valve automation for safe, precise water treatment chemical control.