Grundfos ALPHA1 L 25-40 130 circulator pump

The Grundfos ALPHA1 L 25-40 130 circulator pump is an advanced high-efficiency solution specifically designed for heating systems in both residential and commercial environments. With its permanent magnet motor (ECM technology), this pump ensures optimal energy performance, meeting the requirements of the ErP Directive, making it an ideal choice for those seeking a reliable, efficient, and sustainable pump.

This pump is suitable for various heating applications, such as domestic heating, industrial heating, and in commercial buildings. It can be used independently or easily integrated into existing heating systems, either as a replacement or in new installations. Its versatility and ease of installation make the ALPHA1 L 25-40 130 an adaptable option for different heating configurations.

Versatile operating modes:
The ALPHA1 L 25-40 130 offers three different control modes, allowing it to precisely adapt to the needs of various types of heating systems. These modes include:

• Radiator heating mode, which ensures efficient heat distribution throughout the system.
• Underfloor heating mode, designed to optimize water flow in underfloor heating systems.
• Constant curve/speed mode, for applications that require precise and constant water flow control.

Additionally, the pump can be controlled via a low-voltage PWM (pulse width modulation) signal, facilitating its integration into advanced energy management and automatic control systems.

Robust construction and durable materials:
The ALPHA1 L is built to ensure a long service life and reliable operation, even under demanding operating conditions. Key components of the pump include:

• Ceramic shaft and radial bearings that ensure durability and reduce wear.
• Carbon thrust bearings, which offer high resistance to friction.
• Cast iron housing, which enhances corrosion resistance.
• Composite material impeller (PES+30% GF), contributing to lightweight and durable performance.

All these materials and components ensure that the pump operates smoothly and minimizes the need for maintenance throughout its lifespan.

Easy installation and maintenance:
The compact and ergonomic design of the ALPHA1 L makes its installation simple and quick, thanks to its integrated pump head with control panel. The self-purging system further simplifies startup by automatically eliminating trapped air and ensuring hassle-free operation. Additionally, the pump is designed to fit common installations, including boilers, making it a versatile option for all types of heating systems.

Efficient and quiet operation:
The permanent magnet motor with ECM technology provides highly efficient performance, reducing energy consumption. With a minimum input power of only 4 W and a maximum of 25 W, the ALPHA1 L is extremely energy efficient. Furthermore, thanks to its wet rotor design, the bearings are lubricated with the pumped liquid, eliminating the need for regular maintenance. This type of motor also ensures quiet operation, ideal for use in residential and commercial environments without causing disturbances.

Additional technical features:

• Nominal flow rate: 1.8 m³/h, ensuring adequate water circulation in heating systems.
• Nominal head: 2.01 meters, providing sufficient lift for use in most heating systems.
• Liquid temperature: Operating range of 2°C to 95°C, allowing use in a wide variety of heating applications.
• Maximum working pressure: 10 bar, ensuring that the pump can operate safely in high-pressure systems.
• Connection: Type G of 1 1/2 inches, with a port length of 130 mm, facilitating installation in standard heating systems.

Efficiency and sustainability:
The Grundfos ALPHA1 L 25-40 130 stands out for its energy efficiency index (EEI) of 0.20, ensuring low electricity consumption and making it an environmentally friendly option. This level of efficiency not only reduces operating costs but also helps to decrease the carbon footprint of the heating system.