Grundfos 99155408, CM3-G Series, Model CM 3-6

Product Overview

System downtime during peak irrigation season is more than an inconvenience; it represents a direct threat to high value turf and crop yields. When a primary booster pump fails or lacks the necessary head pressure, entire zones can lose coverage, leading to costly plant loss and frustrated clients. With global supply chain fluctuations affecting lead times for specialized centrifugal units, securing your high performance pumps now protects your project timelines against late spring demand and emergency mid summer replacements. Investing in reliable Grundfos inventory today ensures your crews remain productive and your systems stay operational when the heat is at its highest.

The Grundfos CM3-G Series CM 3-6 offers a significant technical advantage over standard light duty pumps through its compact, modular design and heavy duty construction. By utilizing stainless steel hydraulic components, this model minimizes internal friction and maximizes energy efficiency, which translates to lower operational costs for your clients and fewer service calls for your team. The space saving footprint allows for easy integration into existing skids or tight mechanical rooms, saving installation labor and reducing the need for costly manifold reconfigurations. Maintaining a stock of these versatile units gives your business a competitive edge by providing immediate, professional grade solutions for pressurized water applications.

Product Specifications

Available Models & Sizes

The CM Series includes variants from the CM1 through the CM25 to accommodate a wide range of flow requirements and pressure stages. The CM 3-6 model specifically provides a balance of medium flow and high head pressure, though other impeller stack configurations and motor voltages are available to meet your specific site requirements. Please contact our technical sales team for full configuration sheets or bulk pricing for large scale municipal or agricultural projects.

Key Features

• Compact horizontal design allows for installation in restricted spaces without sacrificing hydraulic performance.
• Stainless steel internal components provide superior resistance to corrosion and wear from abrasive particulates.
• High efficiency motor technology reduces power consumption for lower lifetime ownership costs.
• The modular construction simplifies field maintenance and allows for quick seal replacements if required.
• Quiet operation makes this unit ideal for residential booster applications and noise sensitive commercial environments.
• Robust cast iron base ensures stability and reduces vibration during continuous run cycles.

Common Applications

• Commercial landscape irrigation for large scale properties.
• Residential lawn and garden systems requiring consistent pressure boosting.
• Agricultural and crop irrigation for nursery and greenhouse setups.
• Sports turf and golf course maintenance in secondary booster stations.
• Municipal parks and public spaces utilizing reclaimed water systems.
• Potable water supply systems for small scale distribution.

Installation Notes

The Grundfos CM 3-6 should be installed on a level, solid foundation and secured using the mounting holes in the cast iron base. Ensure that the suction line is as short as possible and that a check valve is installed to maintain prime and protect the pump from water hammer. Professionals should verify all electrical connections against the motor nameplate and adhere to local building codes regarding grounding and circuit protection. For optimal longevity, it is recommended to install a dry run protection switch to prevent mechanical seal damage during supply interruptions.