Optimized energy use through intelligent design.
Variable Primary Flow (VPF) is a modern pumping strategy that uses a single set of variable-speed pumps to serve both the chiller and the building load, eliminating the need for a separate secondary loop. EKG Malaysia specializes in the design, installation, and optimization of VPF systems, delivering significant energy savings, reduced complexity, and enhanced control for new builds and major retrofits.
How It Works:
Single Pumping Loop: Variable-speed pumps adjust flow in response to real-time cooling demand across the entire system.
Chiller Protection: Bypass valves and precise controls ensure each chiller receives its minimum required flow.
Demand-Based Operation: Pump speed reduces as building load decreases, cutting energy consumption dramatically.
Key Benefits:
Energy Savings: Reduces pump energy use by 30–50% or more compared to constant-speed primary-secondary systems.
Lower Initial Cost: Requires fewer pumps, pipes, valves, and less installation labor.
Space Efficiency: Compact design frees up valuable mechanical room space.
Simplified Control: Modern sequences allow seamless integration and easier optimization.
Critical Design & Control Elements:
Properly Sized Bypass Assembly: Crucial for maintaining minimum chiller flow.
High-Quality Flow Meters & Control Valves: Ensure accurate, responsive modulation.
Optimized Control Sequences: For stable chiller and pump staging.
Compatibility: Requires chillers and components designed for variable flow.
Why VPF is Ideal for Malaysia:
Excels under the part-load conditions typical of tropical buildings.
Directly supports green building certifications (GBI, LEED) with measurable energy reduction.
Aligns with modern variable-speed chiller technology and BMS integration.
EKG’s VPF Services:
Feasibility & Design Review – Assessing existing systems for retrofit potential.
Turnkey Installation – Supply, installation, and integration of all components.
Commissioning & Balancing – Precise setup and validation of flows and control sequences.
Performance Tuning – Optimization to maximize savings and ensure reliability.
Upgrade to a smarter, leaner system.
VPF represents the next step in efficient chiller plant design.
Contact EKG Malaysia to explore how a Variable Primary Flow system can reduce your operating costs and simplify your plant’s hydronics.
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