Grundfos ALPHA1 L 20-40 130 Circulator Pump

The Grundfos ALPHA1 L 20-40 130 circulator pump is an efficient and versatile choice for heating systems, designed to deliver optimal performance in both new installations and existing heating systems. Its compact design and high energy efficiency make it an ideal solution for circulating hot water in domestic, commercial, and industrial heating systems. Additionally, it can be used as a replacement in existing systems without requiring major modifications, facilitating its integration and improving performance in a simple and effective manner.

This circulator pump is designed to operate with high energy efficiency, with an energy efficiency index (EEI) of 0.20, which helps reduce energy consumption in heating systems and optimise their operation. Thanks to its cast iron body and reinforced composite impeller, the ALPHA1 L 20-40 130 guarantees a long service life, resisting wear and tough conditions in industrial or commercial environments.

Technical Specifications:

• Nominal Flow: 1.5 m³/h, providing a constant and efficient flow in heating systems.
• Nominal Head: 2.01 metres, with a maximum head of 4 metres (40 dm), ensuring adequate performance in most heating applications.
• Maximum Working Pressure: 10 bar, allowing its use in high-pressure heating systems without compromising performance.

Materials:

• Hydraulic Body: Made of EN 1561 EN-GJL-150 cast iron, ASTM A48-150B, providing excellent durability and corrosion resistance in demanding environments.
• Impeller: Made of PES+30% GF composite, a lightweight and durable material that ensures efficient and prolonged operation.

Installation and Compatibility:

• Ambient Temperature Range: Operates in a range from 0 to 55 °C, making it suitable for installations in a wide variety of environments.
• Connection Type: G-type connections of 1 1/4 inches, facilitating its integration into standard piping systems.
• Port-to-Port Length: 130 mm, a compact size that allows installation in tight spaces or existing systems without major adjustments.

Liquid:

• Pumped Liquid: Water.
• Liquid Temperature Range: From 2 to 95 °C, making it ideal for hot water heating systems.
• Liquid Temperature During Operation: Operates optimally with water at 60 °C, which is ideal for most central heating systems.

Electrical Data:

• Minimum Input Power: 4 W, ensuring extremely low energy consumption in low-demand situations.
• Maximum Input Power (P1): 25 W, providing the necessary energy for efficient operation without excessive consumption.
• Mains Frequency: 50/60 Hz, compatible with domestic and commercial electrical systems.
• Nominal Voltage: 1 x 230 V, ensuring compatibility with standard electrical systems.
• Maximum Current Consumption: From 0.05 to 0.26 A, ensuring economical and efficient electrical consumption.
• Protection Grade: X4D, meaning the pump is protected against dust and water splashes, ideal for use in exposed environments.
• Insulation Class: F, ensuring greater electrical protection and higher thermal resistance.

Additional Features:

• Energy Efficiency: With an energy efficiency index (EEI) of 0.20, the ALPHA1 L 20-40 130 is extremely efficient in terms of energy consumption, making it a cost-effective option for any heating system.
• Thermal Protection: The pump is equipped with integrated electrical thermal protection, preventing overheating and ensuring safe and long-lasting operation.
• Terminal Box Position: 6 H, facilitating connection and installation in different system configurations.

Certifications and Approvals:

The Grundfos ALPHA1 L 20-40 130 holds multiple approvals, such as VDE, CE, EAC, and SEPRO, ensuring it meets international quality and safety standards. These certifications ensure the pump is suitable for use in both domestic and commercial and industrial applications.

Other Features:

• Net Weight: 1.79 kg, making it easy to handle and install.
• Gross Weight: 1.93 kg, including packaging, ensuring safe transport and storage.
• Transport Volume: 0.004 m³, reflecting its compact design and ease of storage.

Recommended Applications:

The Grundfos ALPHA1 L 20-40 130 is ideal for heating systems in a wide range of applications, including domestic, commercial, and industrial heating. It is especially useful as a replacement in existing systems due to its compatibility and easy integration, as well as in new installations requiring a high-performance, low-energy circulator pump. Its high efficiency, along with its ability to operate in high-pressure and high-temperature conditions, makes it a versatile and reliable option for optimising any heating system.