Grundfos CM3-5 Booster Pump for S2 / S4 Systems

Grundfos CM3‑5 Booster Pump for S2 / S4 Systems

The Grundfos CM3‑5 Booster Pump is a compact, stainless steel multistage centrifugal pump designed to work seamlessly with Triogen S2, S4, and XS UV-C or ozone disinfection systems. Its primary function is to ensure a stable and consistent water flow through the disinfection unit, thereby improving overall system efficiency, reliability, and safety. With corrosion-resistant materials, quiet operation, and integrated protection features like dry-run prevention and flow monitoring, this pump is ideal for both domestic and light commercial applications.

Key Features

• High-grade stainless steel internal components for corrosion resistance

• Compact, horizontal multistage centrifugal design

• Quiet operation with low vibration – ideal for indoor installation

• Integrated flow switch and timer for smart automation

• Compatible with S2 / S4 / XS UV-C and ozone water treatment systems

• Includes dry-run protection and anti-cycling via pressure manager (PM2)

• 1″ BSP or NPT threaded connections for easy plumbing integration

• Ideal for cascade systems or as a standalone booster

Technical Summary

Applications

• UV or ozone disinfection systems requiring consistent flow (Triogen S2/S4/XS)

• Domestic pools, spas, and wellness systems

• Water treatment or circulation setups with variable demand

• Compact pump rooms or technical cabinets with space limitations

Benefits

• Ensures reliable disinfection performance by maintaining stable water flow

• Reduces manual monitoring with built-in protection and automation features

• Durable stainless steel construction suitable for long-term pool or treatment plant use

• Easy to install, service, and integrate into most system designs

• Energy-efficient and supported globally by Grundfos service network