Dual-circuit Cooling System Pumps

Independent, simultaneous circulation for complex or redundant cooling needs.
Dual-circuit cooling system pumps incorporate two separate pumping circuits within a single housing or skid, allowing for the independent movement of two different fluids or the parallel supply of a single fluid with built-in redundancy. EKG Malaysia designs, supplies, and installs these specialized pumps for critical applications in power generation, data centers, industrial processes, and HVAC systems where separation, reliability, or precise control is paramount.

Common Configurations & Applications:

• Dual-Circuit, Single Housing (Tandem/Multistage Style):

  • Design: Two impellers on a common shaft, each within its own volute.

  • Application: Boiler Feedwater where multiple pressure stages are required, or systems needing two different pressure boosts from a single driver.

• Dual-Pump Skid (Independent Circuits):

  • Design: Two separate pumps (often end-suction or inline) mounted on a common baseplate, each with its own motor and controls.

  • Application:

    • Primary/Secondary Loops: Physically separating two hydraulic circuits (e.g., dirty tower water from clean process water via a plate heat exchanger).

    • 100% Redundancy (N+1): Two 100%-capacity pumps where either can carry the full load if one fails.

    • Duty/Standby Systems: With automatic switchover.

• Double-Suction, Single Volute (Hydraulically Dual):

  • Design: A double-suction impeller provides inherent hydraulic balance and can serve two suction lines.

  • Application: Large cooling water intake from two separate sources or sumps.

Key Advantages:

• Space Savings: Two functions or pumps in a single footprint.

• Built-in Redundancy: Enhances system availability without needing separate skids.

• Hydraulic Separation: Prevents cross-contamination between two different fluids (e.g., glycol loop and tower water loop).

• Synchronized Control: Easier to control two circuits driven by a single motor or coordinated control panel.

Critical Design Considerations:

• Isolation & Valving: Each circuit must have its own isolation and check valves.

• Control Strategy: Logic for lead/lag operation, failure response, and flow balancing.

• Material Compatibility: Each circuit may require different materials based on the fluid it handles.

Our Dual-Circuit Pump Services:

1. System Analysis: Determining if a dual-circuit design is the optimal solution for your reliability or process needs.

2. Custom Engineering: Designing the pump arrangement, skid layout, and control philosophy.

3. Fabrication & Testing: Building and factory-testing the complete packaged unit.

4. Installation & Commissioning: Setting up and verifying the independent operation of both circuits.

Engineered for complexity and critical duty.
A dual-circuit pump system provides an elegant, reliable solution for demanding cooling challenges.

Contact EKG Malaysia to discuss dual-circuit cooling system pump solutions for your critical application. We engineer integrated systems that deliver separation, redundancy, and control.