FAQ
The SRD is an advanced electrochemical scale removal system designed to eliminate and prevent scale buildup (Ca²⁺, Mg²⁺, SiO₂) in cooling systems, heat exchangers, and pipelines without using chemicals.
Scale buildup reduces heat transfer efficiency and increases energy consumption. Even 0.5mm scale can increase power usage by 13–18% ().
SRD removes existing scale and prevents new formation, improving system efficiency and reducing operating costs.
Manufacturing plants
HVAC systems
Data centers
Power plants
Commercial buildings
Water treatment facilities
Scale buildup reduces heat transfer efficiency, forcing chillers and compressors to work harder. Even 1mm scale can increase energy consumption by 10–15% (page 2 ), leading to significantly higher electricity costs and equipment strain.
Most facilities underestimate this. Scale increases:
Energy bills (10–18%)
Maintenance costs
Downtime risk
👉 We typically calculate ROI based on your current chiller consumption and chemical usage.
Traditional methods (chemical cleaning) only remove scale temporarily. The root cause—dissolved minerals (Ca²⁺, Mg²⁺, SiO₂)—remains in the system, causing continuous reformation ().
SRD doesn’t just treat water—it physically removes scale-forming minerals using electrolysis (page 3 ).
Cooling water enters SRD
Minerals attach to electrodes
Converted into solid particles
Collected and discharged automatically
Clean water returns to system
👉 Over time, existing scale dissolves to maintain equilibrium.
Yes. Unlike conventional systems, SRD:
Removes existing scale
Prevents new scale
Continuously cleans system internally
Field results show visible improvement within ~30–35 days ().
Yes. The system maintains constant current automatically, ensuring stable performance regardless of water condition ().
Microbial Activity (Indirect Control)
SRD is not a disinfection or biocide system, and it does not directly kill microorganisms.
However, by continuously removing scale-forming ions and reducing deposits on heat exchanger and pipe surfaces, SRD eliminates the physical conditions where biofilm and microbes typically grow.
As a result:
- Biofilm formation is suppressed
- Slime growth rate is reduced
- Biocide dosage or injection frequency can often be reduced
Performance Metrics, COC & Cooling Effectiveness
SRD does not directly control Cycles of Concentration (COC).
Instead, it allows stable high-cycle operation by suppressing scale formation even under concentrated conditions.
Operational benefits observed in field applications include:
- Stabilized condenser pressure
- Reduced chiller load and energy consumption
- Improved long-term heat transfer performance
- Reduced blowdown frequency
This means SRD enables more effective and safer cooling tower operation, especially in HVAC systems.
Corrosion Mechanism & Material Compatibility
(Key update based on test and analysis results)
It is important to clarify that SRD does not remove existing corrosion.
However, based on material analysis results (refer to attached data, pages 2–3), SRD contributes to corrosion suppression by:
- Converting unstable iron oxides (FeOOH, Fe₂O₃)
into stable magnetite (Fe₃O₄) - Forming a dense and protective oxide layer on metal surfaces
- Reducing oxygen penetration and slowing further corrosion progression
This magnetite layer acts as a protective film, helping to stabilize carbon steel surfaces in cooling water systems.
In addition, SRD does not cause sudden changes in:
- pH
- Chloride concentration
- TDS
Therefore, it is compatible with common HVAC materials such as:
- Carbon steel
- Stainless steel
- Copper alloys
The system uses an electrode decomposition process:
Cooling water passes through SRD
Scale ions (Ca²⁺, Mg²⁺, SiO₂) attach to electrodes
Converted into solid particles (e.g., CaO)
Collected in internal strainer
Automatically discharged
This gradually removes scale from the entire system.
It does both:
Removes existing scale gradually
Prevents new scale formation by maintaining equilibrium in the system
Scale buildup reduces heat transfer efficiency, forcing chillers and compressors to work harder. Even 1mm scale can increase energy consumption by 10–15% (page 2 ), leading to significantly higher electricity costs and equipment strain.
No. The SRD maintains constant current automatically, ensuring consistent performance regardless of coolant type ().
No. The SRD is installed in parallel to existing piping, so:
No pipe cutting
No shutdown required (in most cases)
Typically 1–2 days, depending on system size and site conditions.
Yes. It is specifically designed for retrofit installation without major system changes.
It depends on your cooling capacity.
Example:
SRD-1000 supports ~700–1200 RT systems (page 10 )
Since scale increases energy usage by up to 18%, removing it can significantly reduce electricity consumption and improve system efficiency.
Initial improvements can be seen within weeks, with significant descaling observed in ~30–35 days based on field data ().
Yes. Benefits include:
Less cleaning downtime
Reduced chemical usage
Lower equipment wear
Extended equipment lifespan
We recommend a pilot installation (3–6 months) to collect real operational data (page 10 ).
Chiller energy consumption ↓
Condenser pressure stabilized
Chemical usage ↓
Water consumption ↓
Visible scale removal
(page 11 )
Minimal maintenance is required. The system includes:
Automatic scale discharge
Self-cleaning electrodes (via air compressor)
Chemical usage can be reduced by up to 90% (page 3 ).
Collected scale is discharged via:
Automatic mode
Manual mode
Through a solenoid valve system.
The electrodes are designed for long-term use and are maintained via automatic cleaning, significantly extending their lifespan.
It is collected and discharged safely through drainage as non-hazardous waste.
Yes. The SRD supports:
Real-time monitoring (current, voltage, temperature)
Remote control via web browser
Access from mobile or desktop
Yes. It features a Touch LCD interface with:
Real-time data display
Easy parameter control
Alarm system
Yes. It includes:
Touchscreen interface
Automated settings
Alarm system