Self-Priming Centrifugal Pump JP 4-54

The Grundfos JP 4-54 self-priming centrifugal pump is an efficient and reliable solution for domestic groundwater supply and other water transfer applications in homes. With its compact and robust design, the JP 4-54 is ideal for extracting water from wells, reservoirs, or surface tanks in a wide range of domestic installations. Its structure is made of stainless steel (AISI 304), providing high corrosion resistance, ensuring prolonged and trouble-free operation.

The JP 4-54 model features a self-priming system that allows it to draw water from a height of up to 8 meters, making it suitable for situations where the water level is below the pump's inlet level. This feature enables the pump to handle a combination of air and liquid until full priming is achieved. The integrated ejector with guide vanes enhances its self-priming capability, ensuring stable operation even in challenging conditions.

One of the main advantages of the Grundfos JP 4-54 is its ease of installation and transport, thanks to its ergonomic handle and compact design. Additionally, it is equipped with integrated thermal protection, which automatically disconnects the pump in case of overheating, thus protecting the motor and extending its lifespan. The air-cooled motor includes oversized and sealed ball bearings, which are permanently lubricated, reducing maintenance needs and ensuring quiet and efficient operation.

The pump's composite impeller is designed to offer optimal performance, allowing a nominal flow rate of 4 m³/h and a nominal head of 22.72 meters, making it a reliable choice for various domestic applications. Furthermore, the electrophoretic paint application contributes to its durability and resistance to adverse conditions.

Technical Specifications:

• Nominal flow rate: 4 m³/h.
• Nominal head: 22.72 m.
• Suction height: Up to 8 meters.
• Liquid temperature range: From 0 °C to 40 °C, with a recommended operating temperature of 20 °C.
• Maximum working pressure: 6 bar.
• Maximum allowable inlet pressure: 1 bar.
• Nominal connection pressure: PN 6.

Construction Materials:

• Pump body: Stainless steel (EN 1.4301 / AISI 304), ensuring corrosion resistance and long life.
• Impeller: Composite (PPO-20GF), designed to withstand continuous operation demands.
• Pump casing: Made of stainless steel to ensure durability in different environments.

Electrical Data:

• Input power (P1): 1020 W.
• Nominal power (P2): 0.75 kW.
• Network frequency: 50 Hz.
• Nominal voltage: 220-240 V.
• Nominal current: 4.5 A.
• Nominal motor speed: 2840 rpm.
• Protection grade: IP44, ensuring protection against water splashes and particles.
• Cable length: 1.5 meters, equipped with SCHUKO plug.

Key Advantages:

• Self-priming and versatile: The JP 4-54 pump can lift liquids from below the inlet level and handle a mix of air and liquid, making it easy to use in applications where water is in distant wells or reservoirs.
• Corrosion resistant: The stainless steel casing and composite impeller ensure the pump can operate in adverse conditions, resisting corrosion and wear over the long term.
• Integrated thermal protection: The pump automatically stops operation if the motor overheats, protecting components and extending equipment life.
• Easy transport: The compact design and ergonomic handle make it easy to transport and install the pump anywhere.
• Quiet and maintenance-free operation: The oversized ball bearings are sealed and permanently lubricated, ensuring quiet operation and reducing maintenance needs.

Main Applications:

• Domestic water consumption: Ideal for pumping water from wells, reservoirs, or cisterns for home use.
• Irrigation systems: Suitable for irrigation applications in gardens, orchards, or green areas.
• Water transfer: Excellent for moving water from one place to another in domestic installations or small properties.