Water Pump Grundfos Scala1 3-45

The Grundfos Scala1 3-45 is a compact, self-priming water pump designed for residential use. It integrates a built-in frequency converter to regulate motor speed and maintain consistent water pressure across varying demand. With a maximum flow rate of 3,600 liters per hour and a maximum head of 45 meters, the unit supports household water supply, garden irrigation and pressure boosting. The pump’s compact design and low-noise operation facilitate easy installation near the water point or inside utility rooms.

Advantages

The integrated frequency converter provides smooth pressure control and energy-efficient operation by adapting power to real-time demand. Self-priming capability reduces installation constraints, allowing the pump to be placed above the water source in many common domestic setups. The pump’s quiet operation and compact footprint simplify siting in homes where space and noise are considerations. Corrosion-resistant components and an enclosed motor design contribute to reliable everyday performance.

Suitable for

• Domestic water supply and pressure boosting
• Garden and lawn irrigation systems
• Filling and servicing small storage tanks
• Applications requiring quiet operation in residential environments

Key specifications

• Maximum flow rate: 3,600 liters per hour
• Maximum head: 45 meters
• Self-priming pump design
• Built-in frequency converter for variable speed control
• Compact, enclosed motor housing for reduced noise
• Suitable for potable water systems when installed according to local regulations

How to use

Install the pump on a stable, level surface close to the water source and in a dry, frost-free location. Connect inlet and outlet piping according to local plumbing standards, ensuring appropriate check valves and isolation valves are fitted where required. Supply the pump with the correct electrical connection as specified in the product documentation and commission the unit by following the manufacturer’s start-up procedure to set the desired pressure range. Regularly inspect connections and ensure the pump remains free from debris in the inlet strainer or filter.

Usage recommendations

For long-term reliability, follow scheduled maintenance: check seals and fittings periodically, ensure electrical connections remain secure, and protect the pump from freezing temperatures. Use the built-in control features to optimize energy use by setting appropriate pressure and cut-in/cut-out values for your installation.