Grundfos JP 3-42 PM1 Pressure Boosting Set

The Grundfos JP 3-42 PM1 pressure booster set is a complete and efficient solution for pressure boosting applications in domestic and garden environments. This system combines a single-stage self-priming centrifugal pump and an intelligent pressure manager, offering a comfortable user experience with constant water pressure and reliable operation. The JP 3-42 PM1 is suitable for various applications such as domestic groundwater consumption, rainwater harvesting, and pressure boosting in potable water installations or irrigation systems.

Main features:

• Efficient self-priming: The Grundfos JP 3-42 PM1 pressure booster set features a self-priming pump that ensures efficient suction from depths of up to 8 metres. This system can handle combinations of air and water until full priming is achieved, ensuring stable and continuous operation even in adverse conditions.
• Dry-running protection: To prevent pump damage, the system includes automatic protection that stops operation if no water is detected. This significantly reduces the risk of breakdowns and minimises maintenance costs.
• Automatic start and stop: Equipped with a PM1 pressure manager, the system automatically starts the pump when the pressure drops to 1.5 bar and stops it when there is no water demand, ensuring the unit operates only when needed, optimising energy consumption.

Advanced components:

This pressure booster set is designed to offer a complete and easy-to-use solution at home. Its main components include:

• Integrated non-return valve: Prevents water backflow, ensuring unidirectional flow and efficient system performance.
• Thermal protection: The JP pump incorporates thermal protection that automatically shuts off the motor in case of overheating, helping to prolong the equipment's lifespan.
• Anti-cycling: In case of small leaks or poorly closed taps, the anti-cycling system stops the pump operation and activates an alarm to avoid continuous cycling and prevent further damage.

Durable and robust materials:

The Grundfos JP 3-42 PM1 is designed to withstand intensive use and changing weather conditions thanks to its high-quality materials:

• Hydraulic casing: Made of AISI 304 (EN 1.4301) stainless steel, resistant to corrosion, ensuring a long equipment lifespan.
• Impeller: Made of PPO-20GF composite material, which guarantees high strength and durability in prolonged use conditions.

Relevant technical data:

• Nominal flow rate: 3 m³/h, making it ideal for meeting water demands in domestic applications.
• Nominal head: 17.91 metres, providing sufficient pressure for various domestic water installations.
• Starting pressure: Set at 1.5 bar, with automatic start and stop according to consumption.
• Self-priming: Up to 8 metres, ensuring reliable start-up even in applications where the pump must draw water from deeper sources.

Electrical specifications and protection:

• Nominal power: 0.55 kW, with a power input of 700 W, ensuring low energy consumption without compromising performance.
• Voltage: 220-240 V, compatible with standard domestic electrical systems.
• Protection rating: IP44, meaning it is protected against water splashes and solid particle ingress larger than 1 mm, suitable for damp environments.
• Power cable: The unit comes equipped with a 1.5-metre-long cable and a Schuko plug, facilitating its connection and installation.

Installation and compatibility:

• Connections: The pump features standard G(F) 1-inch connections for inlet and outlet, making it easy to integrate into domestic plumbing systems.
• Maximum working pressure: 6 bar, ensuring safe operation under considerable pressure without risk of damage.

Design and maintenance:

The robust and compact design of the JP 3-42 PM1 facilitates its installation in various domestic and garden configurations. The motor is air-cooled and equipped with sealed, oversized, and permanently lubricated ball bearings, reducing the need for maintenance and ensuring quiet and stable operation.