ALPHA SOLAR Circulator pumps

The demand for eco-friendly heating systems has been growing rapidly. Solar water heating systems reduce reliance on fossil fuels and cut down energy costs. However, to achieve maximum efficiency, a reliable pump is needed — and that’s where ALPHA SOLAR stands out.

Key reasons to choose ALPHA SOLAR:

• Specifically designed for solar heating applications.

• Equipped with PWM signal control for smart speed adjustment.

• Handles liquid temperatures up to 110 °C.

• Provides quiet and reliable operation.

• Long-lasting durability from a global leader in pumps (Grundfos).

Liquid Temperature

• Operating range: 0 to 110 °C
  This makes the ALPHA SOLAR pump perfect for handling high-temperature solar-heated water safely and efficiently.

Max Flow

• 3 m³/h
  Ensures strong circulation capacity for both small-scale and medium-sized domestic solar heating systems.

Max Head

• 15 meters
  Guarantees that heated water reaches all system points, even in multi-level buildings.

Max Operating Pressure

• 10 bar
  Suitable for most residential and commercial solar water heating applications.

Size and Design

• Compact design for easy installation.

• Robust housing for long service life.

• Designed with energy-saving motor technology.

Domestic Heating

Ideal for residential heating systems, ensuring that solar-heated water circulates efficiently in radiators, underfloor heating, or hot-water storage tanks.

Solar Heating Systems

The ALPHA SOLAR circulator is tailored for thermal solar collectors. It efficiently circulates water or glycol-based fluids through collectors and heat exchangers.

Hybrid Energy Systems

Works seamlessly with hybrid solar-electric heating systems, supporting both green energy use and backup heating.

The ALPHA SOLAR pump operates by circulating heated liquid from solar collectors through the system. Its PWM (Pulse Width Modulation) control system allows the pump to adjust speed according to signals from a solar controller. This ensures:

• Optimal efficiency.

• Reduced energy waste.

• Extended system lifespan.

High Efficiency

The Grundfos ALPHA SOLAR offers low energy consumption, making it a top choice for energy-conscious homeowners and businesses.

PWM Control

Smart control with PWM signals enables the pump to match circulation speed with solar energy output.

Three Constant-Curves Modes

Operators can choose between three performance modes, making it flexible for varying system demands.

Compact and Reliable Design

• Easy installation in compact spaces.

• Quiet operation ensures comfort in residential areas.

• Designed for long-term performance.

ALPHA vs ALPHA SOLAR

• ALPHA: General heating circulator.

• ALPHA SOLAR: Specially designed for solar applications with PWM solar controller compatibility.

ALPHA SOLAR vs CM Pumps

• CM Pumps: General-purpose horizontal end-suction pumps.

• ALPHA SOLAR: Tailored specifically for solar heating efficiency.

ALPHA SOLAR vs TP Pumps

• TP Pumps: Large-scale commercial heating/cooling.

• ALPHA SOLAR: Compact solution for domestic and medium solar systems.

• Ensure correct pipe alignment and mounting position.

• Always follow Grundfos installation manuals.

• Use PWM controllers for optimal performance.

• Check regularly for air locks in the system.

• Inspect seals and gaskets to prevent leaks.

• Monitor pump performance using PWM feedback.

The ALPHA SOLAR is part of Grundfos’ commitment to green technology. By supporting solar-powered heating systems, it helps reduce CO₂ emissions and promotes renewable energy adoption.

At Muhamed Harb Contracting, we are proud to be a trusted provider of Grundfos pumping systems. Our services include:

• Supply and installation of ALPHA SOLAR circulator pumps.

• Maintenance and repair services.

• Consultation for customized solar heating solutions.