Product Overview
NOTE: $35 Fixed Shipping Rate not available in Hawaii or Alaska.
With a CM Booster 3-4 On Demand Pump, you can expect much higher flows and pressures than that of the popular MQ 3-45 model but with the same on demand functionality. The CM Booster Pumps are made with higher quality components (all stainless steel internal parts) and have a significantly longer life expectancy than that of the MQ 3-45. The CM Booster combines the Grundfos CM 3-4 Pump with the Grundfos PM1 Pressure Manager, making it a high quality, high performance above ground pump with on demand capabilities.
The Grundfos CM Booster Self-Priming is a compact booster pump designed for domestic and light industrial use. The booster unit consists of a robust multistage centrifugal pump and a PM1 Pressure Manager. The Pressure Manager allows the pump to start and stop automatically according to demand and protects the pump from dry running. The CM Booster is the perfect solution if you are struggling with insufficient mains pressure, and it can also be used with above or below groundwater sources.
Features
- Compact (small footprint)
- Easy installation
- High reliability
- Wide performance range
- Automatic resetting of alarms
- Adjustable pressure settings
- Dry-running protection
- Anti cycling (leak detection)
- Max continuous operating time
- 110V (3-prong plug plugs into 110 wall outlet)
Pump
- Low noise level
- Grundfos motor
Pressure Manager
- User-friendly interface
- Flexible power supply
- Power-on indication
- Pump running indication
- Alarm indication
- Dry-running protection
- 1" FNPT outlet connection
Documentation:
CM Brochure
CM Product Guide
CM Installation and Operating Instructions
PM1 Brochure
PM1 Product Guide
PM1 Replacement Chart
Performance Curve
Compares flow and pressure of the CM Booster to the popular Grundfos MQ 3-45 pump. The CM Booster 3-4 pump offers higher and flows and pressures with the same on demand functionality. It will supply 12 GPM (Gallons per minute) @ 65 PSI, 16 GPM @ 57 PSI and 20 GPM @ 46 PSI at the pump's discharge. The CM Booster 3-4 is made with higher quality components (all stainless steel internal parts) and has a significantly longer life expectancy than that of the MQ 3-45.
About the CM 3-4
The Grundfos CM pump has been created with compactness, flexibility and reliability as its central features. This horizontal multi-stage, close-coupled pump is a compact, reliable and quiet pump designed to work in a variety of applications.
CM pumps are fitted with mains-operated motors.
A Grundfos engineered mechanical shaft seal has been designed to eliminate industry-wide problems with shaft seals sticking where SIC-SIC seal faces are used. The solution builds on both the implementation of a rotation stop on the stationary ring and different surface finishing on both the stationary and rotating rings.
Flexibility
The Grundfos CM is designed to be used in a variety of applications, including:
- Washing and cleaning (washing machines)
- Rainwater Harvesting (flooded suction from a water storage tank)
- Temperature control (heating/cooling)
- Building services
- Irrigation
- Mains water pressure boosting
- Rainwater supply from above ground water tanks
- Rainwater supply from below ground water tanks
- Rainwater supply from other below ground water sources - dams/rivers etc.
Features and Benefits
Robust design
All wetted parts are made from high quality, corrosion resistant stainless steel to ensure the longest life possible.
User-friendly interface
The pump features a user-friendly interface with LED indicators displaying power status, pump running, alarm indication and pressure indication.
Protective features
The pump incorporates a range of protective features such as; dry run protection, thermal overload protection, cycling alarm and maximum continuous operation time - 30 mins to protect the pump and ensure a long life.
Easy installation
The booster unit is a compact and adaptable solution, which makes it suitable for most installations. Simply connect the inlet and outlet and adjust the start pressure to suit individual requirements and you have a fully operational booster unit.
Integrated non-return valve
Non-return valve for backflow prevention.
About the PM1
The PM1 pressure manager is an intelligent controller for your pump that works in accordance with consumption in domestic water supply and booster systems.
The PM1 is suitable for applications where start/stop of the pump according to consumption is required. It is the basic flexibility solution, offering pump start from 22 PSI or 32 PSI.
The pump is started when the start pressure is reached, and keeps running as long as there is flow. PM1 provides dry-running protection and a cycling alarm for increased safety. It features the usual Grundfos quality, which guarantees high flexibility, robust electronics and long life.
