Grundfos pressure group JP 3-42 PM1

The Grundfos JP 3-42 PM1 pressure booster group is a complete and efficient solution for pressure boosting applications in domestic and garden environments. This system combines a self-priming centrifugal pump with a smart 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 consumption of groundwater, rainwater collection, and pressure boosting in drinking water installations or irrigation systems.

Main features:

• Efficient self-priming: The Grundfos JP 3-42 PM1 pressure booster group features a self-priming pump that ensures efficient suction from depths of up to 8 meters. This system can manage combinations of air and water until achieving full priming, ensuring stable and continuous operation even under adverse conditions.
• Dry running protection: To prevent damage to the pump, the system includes automatic protection that stops operation if no water is detected. This significantly reduces the risk of breakdowns and minimizes 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 that the group operates only when necessary, optimizing energy consumption.

Advanced components:

This pressure booster group is designed to provide a complete and user-friendly solution for the home. Its main components include:

• Integrated non-return valve: Prevents backflow of water, 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, contributing to prolonging the equipment's lifespan.
• Cycling prevention: In case of small leaks or poorly closed taps, the cycling prevention system stops the pump operation and activates an alarm to avoid continuous cycling and prevent further damage.

Resistant and durable materials:

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

• Hydraulic body: Made of AISI 304 stainless steel (EN 1.4301), resistant to corrosion, ensuring a long lifespan of the equipment.
• Impeller: Made of PPO-20GF composite material, which guarantees high strength and durability under 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 meters, providing sufficient pressure for various domestic water installations.
• Starting pressure: Set at 1.5 bar, with automatic start and stop based on consumption.
• Self-priming: Up to 8 meters, ensuring reliable starting even in applications where the pump must draw water from deeper sources.

Electrical specifications and protection:

• Nominal power: 0.55 kW, with an input power 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 the entry of solid particles larger than 1 mm, suitable for humid environments.
• Power cable: The group comes equipped with a 1.5-meter long cable and a Schuko plug, making connection and installation easy.

Installation and compatibility:

• Connections: The pump features standard G(F) 1-inch connections for inlet and outlet, facilitating integration 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 is equipped with oversized, permanently lubricated sealed ball bearings, which reduces the need for maintenance and ensures quiet and stable operation.