Grundfos Pressure Group JP 5-48 PM1

The Grundfos JP 5-48 PM1 booster set is a complete system designed for domestic and garden applications that require a constant water supply with optimal pressure. This set combines a self-priming centrifugal pump and an intelligent pressure manager, offering an efficient and reliable solution for groundwater consumption, rainwater harvesting, and pressure boosting in domestic networks.

Advanced Components and Design

The Grundfos JP pump, constructed with high-quality stainless steel (EN 1.4301/AISI 304), ensures durability and corrosion resistance. Its composite impeller (PPO-20GF) ensures efficient and stable operation. The PM1 pressure manager allows for automatic start-up at 1.5 bar and keeps the pump active while detecting flow in the system, ensuring intuitive operation adapted to consumption.

Self-Priming and Deep Suction

The self-priming pump of the JP 5-48 PM1 can handle combinations of air and liquid, achieving full priming for a suction height of up to 8 metres. This makes it ideal for applications where the water supply comes from tanks or sources below the entry level.

Advanced Protection Functions

The booster set incorporates several safety features that protect the system and extend its lifespan:

• Dry-running protection: Automatically stops the pump if no liquid is detected, minimising the risk of damage and reducing maintenance costs.
• Anti-cycling function: Stops the pump in case of minor leaks or poorly closed taps, preventing unnecessary use of the equipment.
• Thermal protection: Shuts off the pump in case of overheating, ensuring safety during prolonged use.

Technical Features

• Nominal flow rate: 5 m³/h, suitable for multiple domestic applications.
• Nominal head: 27.83 m, ideal for high-pressure systems.
• Maximum working pressure: 6 bar, compliant with ISO 228-1 standards.
• Liquid temperature: 0 °C to 40 °C.

Electrical Performance

The motor of the JP 5-48 PM1 is highly efficient, with a nominal power of 1 kW and a design that minimises maintenance thanks to its oversized, sealed, and permanently lubricated ball bearings.

• Nominal voltage: 220-240 V.
• Maximum consumption: 6.1 A.
• Nominal speed: 2870 rpm.
• Insulation class: F.
• Protection degree: IP44.

Ease of Installation and Use

The compact design and reduced weight (15 kg net) facilitate installation and transport. Additionally, it includes a 1.5 m power cable with a standard SCHUKO plug and an integrated non-return valve to prevent backflow.

Main Applications

• Domestic groundwater consumption: Easily extracts water from wells or tanks.
• Rainwater harvesting: Utilises stored rainwater for domestic use and irrigation.
• Domestic pressure boosting: Ensures constant pressure in domestic water systems.

Materials and Durability

• Hydraulic body: Corrosion-resistant stainless steel.
• Impeller: High-quality composite for efficient performance.

Additional Specifications

• Compact dimensions: Ideal for confined spaces.
• Adjustable start pressure: 1.5 bar.
• Approvals: CE, EAC, WEEE.

The Grundfos JP 5-48 PM1 booster set is a reliable and durable solution that combines advanced technology, energy efficiency, and safety to meet the water supply needs in domestic and garden environments.