Variable Primary Flow (VPF) Pumping Systems
Optimize energy use and simplify your chiller plant.
VPF systems use a single set of variable-speed pumps to serve both chillers and building loads, eliminating the need for separate primary/secondary loops. This streamlined design reduces installation cost, saves pump energy, and improves part-load efficiency—ideal for modern buildings with variable-flow chillers.
How It Works:
A single pump loop varies flow based on real-time cooling demand. Specialized controls and valves ensure chillers always receive their minimum required flow, protecting equipment while allowing the system to adapt efficiently.
Key Benefits:
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Lower energy use – Pumps slow down at part load, cutting power consumption significantly.
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Reduced complexity – Fewer pumps, pipes, and valves compared to primary-secondary systems.
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Space savings – Compact design frees up mechanical room space.
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Improved control – Modern sequences allow seamless chiller and pump staging.
Why It Works for Malaysia:
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Matches the part-load profile of tropical buildings.
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Supports GBI/Green Building certification with measurable energy savings.
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Compatible with today’s variable-speed chillers and intelligent BMS integration.
EKG’s VPF Services:
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Design review & system selection
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Commissioning & flow verification
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Control tuning & chiller protection setup
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Retrofit planning from primary-secondary to VPF
Simplify your plant, maximize savings.
Upgrade to a smarter, more efficient pumping strategy.
Contact EKG Malaysia to design, install, or optimize your Variable Primary Flow system.
