Grundfos CMBE-1-44 Booster System Pump
Features
Inlet Size 1 Inch
Style GPM
8.8 Gallons
- Grundfos CMBE 1-44 - 1 HP Booster Pump (115V)
- Designed for water supply and boosting in domestic and light commercial applications
- Rated 8.8 GPM @ 85' Head* (Please See Documents For Sizing Information)
- Provides 20-50 PSI at 0-10 GPM; Provides 20-30 PSI at 0-15 GPM
- All-In-One Solution
- Includes pump, motor, tank, pressure/flow sensor, controller & check valve
- 1 HP MGE Frequency-Controlled Permanent-Magnet Motor (115V)
Here's supplementary content for the Grundfos CMBE-1-44 Booster Pump page — insert after the "Features" list, before the Grundfos company paragraph:
Understanding the CMBE-1-44: A True All-in-One System
What "All-In-One" Actually Means Here
Unlike a bare pump that needs to be paired separately with a pressure tank, sensor, and controller, the CMBE-1-44 integrates all of these components into a single unit — pump, motor, tank, pressure/flow sensor, controller, and check valve. This matters practically: it simplifies installation (fewer separate parts to plumb together), reduces potential failure points at component connections, and gives you a single warranty and service point rather than managing multiple manufacturers' parts.
Reading the Pressure and Flow Specs
The pump's performance changes depending on demand — this is normal and expected for any booster pump, but understanding the numbers helps set realistic expectations:
- 20-50 PSI at 0-10 GPM — at lower flow demand (fewer fixtures running), the pump maintains a wider, higher pressure range
- 20-30 PSI at 0-15 GPM — as more water is drawn simultaneously, available pressure narrows somewhat, which is physically unavoidable but still represents solid, usable household pressure
- 8.8 GPM @ 85' of head — this is the pump's rated flow capacity against 85 feet of "head" (a measure of resistance from elevation change and pipe friction), useful for confirming the pump can adequately serve a multi-story home or longer plumbing run
MGE Frequency-Controlled Motor: Why It Matters
The 1 HP MGE frequency-controlled permanent-magnet motor is a more advanced motor design than a standard fixed-speed induction motor. Frequency control allows the motor to vary its speed smoothly in response to demand, rather than simply switching on and off at full power — this generally means quieter operation, less mechanical wear from repeated full-power starts, and more precise, consistent pressure delivery.
Sizing: 1-Inch Inlet and What It Suits
With a 1-inch inlet, the CMBE-1-44 is sized for typical residential and light commercial water supply lines — matching common household plumbing without requiring a larger, more industrial connection. This makes it a straightforward retrofit for most single-family homes experiencing pressure issues, without needing to upsize existing supply piping.
Domestic vs. Light Commercial Applications
The CMBE-1-44 is explicitly rated for both domestic and light commercial use, meaning it's built with enough capacity and durability to serve not just single-family homes but also smaller commercial properties — multi-unit buildings, small offices, or similar settings with moderate simultaneous water demand beyond a typical single household.
Grundfos SCALA2 vs. CMBE-1-44: Which Fits Your Situation?
| Grundfos SCALA2 | Grundfos CMBE-1-44 | |
|---|---|---|
| Max pressure | 145 PSI | Up to 50 PSI (flow-dependent) |
| Application | Residential, compact, outdoor-ready | Domestic and light commercial |
| Design | All-in-one, self-priming | All-in-one with integrated tank |
| Best for | Homes needing strong, consistent pressure boost with flexible placement | Properties needing higher flow capacity or light commercial-grade reliability |
Not sure which unit best matches your home or property's water demand? Our technicians can evaluate your current pressure, fixture count, and building type to recommend the right pump — see also our SCALA2 Water Booster Pump page for comparison.
Professional Installation Matters
Because the CMBE-1-44 integrates directly into your main water supply and includes electrical, sensor, and control components, professional installation ensures the system performs to its rated specifications. Our licensed plumbers will:
- Evaluate your property's water demand, fixture count, and current pressure issues
- Confirm the 1-inch inlet is compatible with your existing supply line
- Install and wire the pump, integrating its built-in tank and controller
- Configure pressure and flow settings appropriate to your household or property
- Test performance across varying simultaneous water demand scenarios
Frequently Asked Questions
Is this pump suitable for a single-family home, or is it overkill?
It's well suited to single-family homes, especially larger ones or those with higher fixture counts, while also having enough capacity for light commercial applications if your needs are more demanding than a typical residential booster pump.
Do I need a separate pressure tank with this unit?
No — the CMBE-1-44 includes an integrated tank as part of its all-in-one design, eliminating the need for a separately installed pressure tank.
How is this different from a standard well pressure tank system?
This is a booster pump designed to increase pressure from an existing water supply (municipal or well), rather than a primary well pump system; it's typically installed downstream of your main water source to solve pressure delivery issues throughout the home.
Commercial-Grade Constant Water Pressure & Compact Design for Modern Homes
The Grundfos CMBE 1-44 Water Booster System is a state-of-the-art, all-in-one compact constant-pressure booster engineered to eliminate weak showers and frustrating pressure drops across your entire property. Combining a high-efficiency CME pump, premium motor, integrated frequency converter, diaphragm tank, pressure/flow sensor, and check valve into a single pre-assembled unit, the CMBE 1-44 delivers exceptional performance. By utilizing an intelligent variable-speed drive, it dynamically adjusts motor speed to match your exact water consumption in real-time—ensuring stable, robust pressure whether you are running a single bathroom sink or multiple appliances simultaneously. Built with rugged stainless steel hydraulic components and NSF-certified drinking water safety, it is the ultimate reliability upgrade for municipal water boosting or private well systems. Call our certified plumbing specialists at (224) 754-1984 for expert system installation, pressure calibration, or emergency replacement:
Flawless Constant Pressure Control: Integrated frequency converter automatically modulates motor speed to keep water pressure rock-steady regardless of fluctuating household demand.
All-In-One Compact Engineering: Integrates the pump, motor, expansion tank, controller, check valve, and sensors into a single sleek, space-saving footprint.
Durable Stainless Steel Construction: All wetted hydraulic components are crafted from high-grade corrosion-resistant stainless steel for maximum longevity and pure water quality.
Energy-Efficient ECM Motor: Features an advanced high-efficiency permanent-magnet motor that reduces electrical consumption while delivering powerful output.
Advanced Safety Protections: Built-in dry-run protection, thermal overload safeguards, and anti-cycling algorithms protect the investment from premature wear or damage.
Grundfos CMBE 1-44 Technical Specifications & Performance
Designed for professional installation in residential utility rooms, basements, or mechanical spaces:
Technical Parameter Feature & Specification Details Operational Advantage Manufacturer & Model Grundfos CMBE 1-44 Compact Booster System Premium commercial-grade residential pressure boosting. Rated Flow / Capacity 8.8 GPM (Nominal) up to max performance Delivers ample water volume for multiple active household fixtures. Drive & Motor Type 1 HP Integrated Frequency-Controlled ECM Motor Dynamically adjusts speed for exact pressure regulation. Maximum Head / Pressure Up to 85 ft. Head (~36 to 50 PSI boost range) Eradicates low-pressure issues in multi-story homes or sprawling layouts. Electrical Requirements 115V / 60 Hz (Standard plug-in connection with 5-ft cord) Straightforward electrical integration without heavy rewiring. Drinking Water Safety NSF 61 / 372 Certified components Guarantees safe, clean, and healthy potable water for your family.
Key Benefits of Upgrading to a Grundfos CMBE 1-44 System
Integrating a Grundfos CMBE 1-44 booster system into your plumbing infrastructure delivers immediate practical comfort rewards:
End Low-Pressure Grievances: Transform weak, trickling showers into powerful, invigorating spa-like experiences across all bathrooms at the same time.
Zero Pressure Surges: Unlike traditional switch-activated pumps that blast water on and off abruptly, the inverter technology ensures smooth, gradual flow transitions.
Whisper-Quiet Operation: Precision engineering and sound-dampening motor design ensure the unit operates quietly in the background without disturbing household peace.
Plug-and-Play Simplicity: Pre-wired and factory-tested, allowing certified technicians to seamlessly connect the unit into your existing water lines with minimal downtime.
Our Step-by-Step Grundfos CMBE 1-44 Installation Process
Hydraulic & Pressure Assessment: Evaluating your home's incoming static water pressure, peak flow rate, and pipe sizing to ensure optimal system matching.
Plumbing Integration & Isolation Valves: Cutting into the main water supply line and installing secure brass ball valves and unions for easy future maintenance.
Mounting & Vibration Dampening: Securing the robust CMBE unit to a solid foundation or floor bracket using anti-vibration pads to prevent harmonic resonance.
Electrical Connection & Grounding: Plugging the unit into a dedicated, grounded electrical outlet while verifying proper circuit load capacity.
System Priming & Pressure Calibration: Priming the wet end, programming target pressure parameters on the digital control interface, and conducting full multi-fixture stress tests.
Frequently Asked Questions: Grundfos CMBE 1-44 System
Q: How does the Grundfos CMBE 1-44 maintain constant pressure?
A: The system features an integrated frequency converter and pressure sensor. When you open a tap, the sensor detects the pressure drop and signals the motor to instantly speed up or slow down, maintaining your preset water pressure perfectly.
Q: Does the CMBE 1-44 require a large external pressure tank?
A: No. The system includes a compact built-in diaphragm pressure tank and complete control electronics, saving valuable floor space in your utility room or basement.
Q: What happens if my water supply is interrupted or runs dry?
A: The CMBE 1-44 is equipped with automatic dry-run protection. If water flow stops or the municipal supply cuts out, the system automatically shuts down to prevent overheating and seal damage.
Q: Is the Grundfos CMBE 1-44 suitable for outdoor installation?
A: While rated for durable performance, in Chicagoland's freezing climate, we strongly recommend indoor installation (such as in a heated basement or utility room) to protect the pump housing and internal plumbing from winter freeze damage.
Grundfos is the largest pump manufacturer in the world, based in Denmark, with more than 19,000 employees globally.
The annual production of more than 16 million pump units, circulator pumps (UP), submersible pumps (SP), and centrifugal pumps (CR). Grundfos also produces electric motors for the pumps as well as electric motors for separate merchandising. Grundfos develops and sells electronics for controls for pumps and other systems.
With multiple locations throughout North Shore and Northwest suburbs of Chicago, Illinois, Emergency Plumbing offers promt and professional plumbing services.
Are you looking for a reliable plumber near me in the Arlington Heights, Bannockburn, Barrington, or surrounding areas?
Our local plumbing company offers expert services, catering to all your needs. Whether you're in the heart of Buffalo Grove, the serene streets of Deerfield, or require an emergency plumber in Des Plaines or Elk Grove Village, we are here to help. Our plumbing contractors are well-versed in the unique plumbing systems of Glencoe, Glenview, Hawthorn Woods, and Highland Park.
For those in Highwood, Hoffman Estates, or the quaint town of India Creek, our team guarantees prompt and efficient service.
Residents of Inverness, Kildeer, Lake Bluff, Lake Forest, and Lake Zurich can also rely on our expertise. We extend our services to Long Grove, Mettawa, Lincolnshire, Mount Prospect, Mundelein, Northbrook, and Palatine.
Need a plumber in Prospect Heights, Ravinia, RiverWoods, Rolling Meadows, Vernon Hills, Wauconda, Wheeling, Wilmette, or Winnetka? Look no further! As a trusted plumbing contractor, we ensure that your plumbing issues are solved quickly and efficiently, keeping your home or business running smoothly.
