Grundfos ALPHA1 L 15-65 130 Circulator Pump

The Grundfos ALPHA1 L 15-65 130 circulator pump is a high-efficiency solution designed for heating systems in domestic, commercial, and industrial environments. Equipped with permanent magnet motor technology (ECM), this circulator pump ensures optimal operation and low energy consumption. Thanks to its three control modes, the ALPHA1 L can be adjusted for radiator heating, underfloor heating, or constant speed, adapting to different heating system configurations.

Main Features:

• Energy Efficiency: The Grundfos ALPHA1 L features a permanent magnet ECM motor that optimises energy consumption and complies with the ErP Directive, ensuring efficient and environmentally friendly operation.
• Adjustable Control Modes: With three constant curves and constant speed options, along with specific modes for radiators and underfloor heating, this pump offers flexibility in its configuration and operation.
• PWM Compatibility: The pump can be controlled via a PWM (pulse width modulation) signal, allowing easy integration of the pump into automated or remote control systems.

Durable Design and Components:

The ALPHA1 L 15-65 130 circulator pump is designed with high-quality materials to ensure its durability and resistance to demanding conditions. Its ceramic shaft and carbon bearings, along with other stainless steel and composite components, ensure a long service life and maintenance-free operation. Furthermore, the pump features a wet rotor construction, where the bearings are automatically lubricated with the pumped liquid, reducing the need for manual intervention.

• Galvanised Cast Iron Housing: The pump body is made of EN 1561 (EN-GJL-150) cast iron, treated to offer high corrosion resistance and ensure its durability in heating systems.
• Composite Impeller: Made of PES+30% GF, the impeller is highly wear-resistant, ensuring reliable performance over years of use.

Technical Performance:

• Nominal Flow Rate: 1.94 m³/h, ideal for medium to large-sized heating systems.
• Nominal Head: 3.28 metres, providing adequate pressure to distribute water in heating systems.
• Working Pressure: Up to 10 bar, allowing its use in a wide variety of installations.
• Fluid Temperature Range: From 2°C to 95°C, making it suitable for both conventional heating systems and applications with higher temperatures.

Ease of Installation and Use:

The compact design of the Grundfos ALPHA1 L facilitates its installation, even in confined spaces or existing systems. The pump can be integrated as a replacement in old heating systems or installed in new constructions without complications. Additionally, its integrated control box and adjustable flexible connector allow for quick and easy installation.

• Compact Size: With a connection length of 130 mm, the ALPHA1 L is ideal for fitting into the most common heating installations.
• Standard Connections: The pump uses G 1-inch connections, making it easy to integrate with other components of the heating system.

Electrical Data and Protection:

• Input Power: The pump has an input power range between 4 W and 60 W, ensuring low energy consumption under normal use conditions.
• Voltage and Frequency: Operates with a nominal voltage of 230V and is compatible with both 50 Hz and 60 Hz networks.
• Protection Rating: IPX4D, meaning the pump is protected against water splashes, making it suitable for use in humid environments such as boiler rooms or heating installations.
• Insulation Class: F, ensuring effective protection against overheating and motor wear.

Other Technical Details:

• Net Weight: 1.8 kg, making it easy to handle and install.
• Energy Efficiency: EEI index of 0.20, highlighting its high energy performance compared to other circulator pumps.

The Grundfos ALPHA1 L 15-65 130 circulator pump is a reliable and efficient option for any heating system, whether domestic, commercial, or industrial. With its high-efficiency ECM motor, multiple control modes, durable design, and ease of installation, this pump ensures efficient and low-maintenance operation throughout its service life. Whether you are looking for an upgrade for your heating system or installing a new one, the ALPHA1 L offers an energy-efficient and technologically advanced solution for your heating needs.