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Cooling Tower Drift Eliminators by EKG M&E Sdn Bhd

In the densely populated urban areas of Kuala Lumpur and Selangor, managing a cooling tower is not just about heat rejection—it’s about public safety. Drift Eliminators are the critical internal components designed to capture water droplets entrained in the air stream before they escape the tower as "drift."

EKG M&E Sdn Bhd specializes in the selection, installation, and maintenance of high-efficiency drift eliminators to minimize water loss and reduce the risk of spreading Legionella bacteria via airborne aerosols.

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1. The Engineering of Drift Capture

As air is pulled upward through the tower by the axial fan, it carries fine water droplets with it. Drift eliminators work through inertial impaction.

• The S-Shape Design: Modern eliminators utilize a cellular "S-curve" or "Zig-Zag" profile. As the air is forced to change direction rapidly, the heavier water droplets cannot make the turn and instead slam into the blade walls.

• The Collection: These captured droplets coalesce and run back down into the Infill and eventually the Basin, rather than being wasted into the atmosphere.

2. Why High-Efficiency Eliminators Matter

For an M&E manager in the Klang Valley, upgrading or repairing drift eliminators offers three primary benefits:

A. Legionella Risk Mitigation

The Ministry of Health (MOH) and DOSH (JKKP) have strict guidelines on aerosol emissions. Drift is the primary vehicle for the transmission of Legionella. High-efficiency eliminators can reduce drift loss to less than 0.001% of the circulating water flow.

B. Water and Chemical Savings

In a large commercial chiller plant, "drift" can account for thousands of liters of wasted water per month. Because this water is already treated with expensive biocides and corrosion inhibitors, losing it to the atmosphere is a direct hit to your OpEx.

C. Prevention of "Nuisance" Spotting

Uncontrolled drift leads to "calcium spotting" on nearby windows, building facades, and parked cars. In sensitive environments like hospitals or high-end office towers in KL, this leads to high cleaning costs and structural degradation.

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3. Maintenance and Integration

As an HVAC and Clean Air Specialist, we integrate drift eliminator health into the total system performance:

• VFD Modulation: We calibrate your Variable Frequency Drive (VFD) to ensure the fan velocity doesn't exceed the "Breakthrough Velocity" of the eliminators. If the air moves too fast, it will physically "rip" the water off the blades, causing excessive drift.

• Cleaning & Algae Control: If drift eliminators become clogged with algae or scale, the Static Pressure increases. This forces the fan motor to work harder, spiking your TNB bill and potentially leading to motor burnout.

• Structural Inspection: We check for gaps between the eliminator blocks. Even a 1-inch gap can allow a significant amount of "untreated" drift to bypass the system entirely.

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Drift Eliminator Performance Matrix

Feature	Old "Wood Splash" or Gapped Blocks	EKG M&E High-Efficiency PVC
Drift Rate	0.02% – 0.10% (High Loss).	< 0.001% (MOH Compliant).
Pressure Drop	High (Inefficient).	Low (Aerodynamically Optimized).
Chemical Loss	Significant.	Minimal (Stays in the loop).
Lifespan	Brittle / Prone to UV damage.	UV-Protected / Chemical Resistant.

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Why Choose EKG M&E Sdn Bhd?

• Precision Retrofitting: We don't believe in "one size fits all." We measure your tower’s specific dimensions to ensure a Gap-Free installation that prevents air bypass.

• Total System Audit: We check the Spray Nozzles and Infill while the eliminators are being serviced to ensure the entire "Heat Rejection" cycle is balanced.

• Strategic Support: Based in Kuala Lumpur, we provide turnkey replacement, structural repair, and scheduled "Clean Air" maintenance for commercial and industrial facilities.