Grundfos 97950707, CM5-I Series, Model CM 5-8

Product Overview

System shutdowns during peak irrigation windows can lead to catastrophic turf damage or total crop loss, especially when municipal water pressure fails to meet the demands of high capacity zones. When a primary pump fails or falls short during the height of the summer heat, your crews face unbearable pressure to restore flow before permanent damage occurs. Supply chain delays on high performance centrifugal units often result in weeks of downtime and frustrated clients. By securing the Grundfos CM5-8 now, you eliminate the risk of back orders and ensure your projects remain on schedule, providing your clients with the reliable water delivery they expect during high demand cycles.

The Grundfos CM5-8 multistage centrifugal pump offers a distinct technical advantage over single stage alternatives through its modular design and high grade stainless steel construction. This compact unit is engineered for continuous duty, significantly reducing long term maintenance costs and energy consumption compared to lower grade cast iron models. Its quiet operation and high efficiency allow for smaller footprints in mechanical rooms or enclosures, saving your team installation time. Stocking these precision engineered units gives your business a competitive edge, allowing you to provide immediate, high quality solutions for pressure boosting applications while others are stuck waiting on lead times.

Product Specifications

Available Models & Sizes

The Grundfos CM series is available in several configurations including CM1, CM3, and CM5 models with varying stage counts to meet specific head and flow requirements. This CM 5-8 model represents a high pressure configuration in the 5 cubic meter per hour nominal flow range. Please contact our technical sales team for full configurations, motor phase options, or lead times on custom seal materials.

Key Features

• High grade stainless steel wetted parts provide superior corrosion resistance in aggressive water conditions.
• Multistage impeller design delivers higher pressure outputs with a significantly smaller motor footprint.
• Mechanical shaft seals are engineered for long life and rated for a wide range of fluid temperatures.
• Extremely quiet operation makes this unit ideal for noise sensitive residential and commercial installations.
• The modular design allows for easy serviceability and parts replacement without removing the entire pump.
• Compact horizontal profile enables flexible mounting options in tight equipment skids or pump houses.

Common Applications

• Commercial landscape irrigation pressure boosting.
• Sports turf and golf course maintenance systems.
• Municipal parks and public spaces water management.
• Greenhouse and nursery operations requiring consistent pressure.
• Agricultural and crop irrigation for small to medium acreage.
• Potable water supply systems for multi story facilities.

Installation Notes

Installation requires a level, rigid foundation to prevent vibration and ensure proper alignment of the piping. Always install a check valve on the discharge side and a foot valve on the suction side if operating under a suction lift condition. Standard NPT threaded connections should be sealed with a high quality thread sealant or PTFE tape to prevent leaks. Ensure electrical connections comply with local codes and include a motor starter with overload protection to safeguard the unit from phase failure or voltage spikes. Grundfos recommends a minimum of five pipe diameters of straight run on the suction side to maintain laminar flow and prevent cavitation.