GRUNDFOS CMB 3-37 .5kw PRESSURE PUMP

Grundfos CMB 3-37 Booster Pump Set

The Grundfos CMB PM is a compact boosting solution designed for efficient water supply in domestic and light commercial applications. Paired with a Grundfos PM pressure manager, it automatically starts and stops the pump based on demand — delivering reliable, consistent water pressure without you having to think about it.

Set-and-Forget Pressure Control
The pressure manager monitors demand and controls the pump automatically, protecting it from dry running while keeping pressure steady throughout your home. Installation is straightforward — once connected to your pipework, it's simply a matter of plugging in and the system is operational.

Built to Last
Constructed with a 304 stainless steel body, impeller, and pump shaft, along with a technopolymer diffuser and carbon mechanical seal, the CMB 3-37 is built for durability in both mains and rainwater applications.

Compact and Reliable
A self-priming, multi-stage pump design makes the CMB Booster compact and versatile, with good suction lift capability — ideal where space is limited but performance still matters.

Specifications

• Motor / power: 500W
• Max flow: 70 L/min (3.1 m³/h rated flow)
• Head: 37 m
• Pressure: 370 kPa
• Inlet: 1" F / 25mm
• Outlet: 1" M / 25mm
• Body: 304 stainless steel
• Impeller & shaft: 304 stainless steel
• Diffuser: Technopolymer
• Mechanical seal: Carbon with resin/ceramic
• Suitable for: Domestic and light commercial water supply