



Grundfos CM Booster Pump 24L, 0.9 HP
- Brand: Grundfos
- Product: CM Booster Pump 24L, 0.9 HP
- Type: Automatic Pressure-Boosting System with Integrated Diaphragm Tank
- Motor Power Rating: 0.9 HP (0.67 kW)
- Pressure Vessel Capacity: 24 Litres (Diaphragm Expansion Tank)
- Optimal Bathroom Load: Ideal for 4 to 6 Bathrooms
- Electrical Framework: Single Phase (220-240 V, 50 Hz)
- Enclosure Rating: IP55 Weatherproof
Grundfos CM Booster Pump 24L, 0.9 HP is a premium, all-in-one automatic pressure-boosting system designed for residential water networks. Featuring a heavy-duty multi-stage centrifugal pump mounted on top of a pre-charged 24-litre diaphragm storage tank, the system automatically monitors pipeline pressure. It powers on smoothly the moment a shower or faucet is opened and cleanly cuts off once your household pipes regain their preset target pressure.
This 0.9 HP configuration is built for larger multi-story residences with 4 to 6 bathrooms, multi-jet massage panels, or luxury overhead rain showers that need higher volume and steady head pressure to operate effectively.
Key Features
- Constant Hydraulic Supply: Delivers uninterrupted water pressure to luxury showers, multi-jet shower panels, and bathroom fixtures simultaneously without line drops
- Integrated 24L Pressure Tank: A pre-charged 24-litre expansion vessel stores pressurized water volume, stopping the motor from starting up for minor water uses and reducing energy costs and pump wear
- Whisper-Quiet Multi-Stage Design: An advanced multi-impeller build moves water through successive chambers, with immense noise suppression compared to loud single-stage local pumps
- Anti-Corrosive Build Materials: All internal hydraulics in direct contact with drinking water are forged from high-grade AISI 304 stainless steel for rust-free longevity
- Built-in System Safeguards: F-Class winding insulation and automatic TP 211 thermal overload protection handle high start-stop frequencies without burning out
Technical Specifications
| Specification | Details |
|---|---|
| Product Model | Grundfos CM Booster 24L (0.9) |
| Motor Power Rating | 0.9 HP (0.67 kW) |
| Pressure Vessel Capacity | 24 Litres (Diaphragm Expansion Tank) |
| Max Pressure Head | Up to 37–46 Meters |
| Average Delivery Capacity | Up to 4,700 Litres Per Hour (LPH) |
| Optimal Bathroom Load | Ideal for 4 to 6 Bathrooms |
| Electrical Framework | Single Phase (220-240 V, 50 Hz) |
| Enclosure Rating | IP55 Weatherproof |
Why Buy from HomeRun?
- Authentic Grundfos Product: Verified genuine product sourced from authorized channels
- 60-Minute Bangalore Delivery: Express delivery to active service zones for urgent site needs
- Project-Friendly Availability: Single-unit ordering for larger multi-bathroom homes
1) What is the main benefit of buying a CM pump with a 24L tank instead of a standalone pump?
Without a pressure tank, your pump would have to cycle on and off every single time someone washes their hands or rinses a cup. The 24L storage tank holds a volume of pressurized water ready to go. The pump only kicks on when that stored capacity runs low, saving power and protecting the motor from frequent start-up wear.
2) Does this pressure booster pump require manual priming during installation?
The Grundfos CM series pump operates as an end-suction centrifugal system. While it is highly robust, it requires a flooded suction line (water feeding into it under gravity from an overhead or ground-level tank) and must be fully primed during initial installation to remove trapped air before turning it on.
3) Can this pump withstand voltage fluctuations common in domestic lines?
Yes. The motor is wound to premium F-Class insulation parameters and features a single-phase built-in thermal switch. If the internal winding temperature spikes due to bad voltage or a dry-running line, the pump automatically cuts power to protect itself from burning out.
4) Is the installation plumbing line assembly included with the box purchase?
Standard listings cover the pre-assembled booster block, tank, and pressure gauge mechanism. Structural bypass lines, check valves, and site plumbing layout labor fall under the buyer's scope and should be handled by a certified plumbing team to secure the warranty.
5) Is the 0.9 HP variant right for my home?
The 0.9 HP variant is built for larger multi-story residences with 4 to 6 bathrooms, or homes with luxury fixtures like multi-jet massage panels and overhead rain showers that need higher volume and steadier pressure. If you have a smaller single-floor or duplex home with up to 4 bathrooms, the 0.7 HP variant may be sufficient instead.
- Return within 24 hours of delivery for:
- Damaged or defective product
- Wrong or missing item
- Product cannot be returned once installed or used
- Refer to Refund Policy for complete details
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