Self-priming centrifugal pump JP 3-42

The self-priming centrifugal pump JP 3-42 from Grundfos is a reliable and efficient solution for a wide variety of domestic applications, designed to pump water from wells or tanks. With a power of 0.55 kW (700 W input), this pump is perfect for domestic consumption of groundwater, offering exceptional performance thanks to its self-priming capability and its compact, robust design.

The pump casing is made of AISI 304 stainless steel, which provides high resistance to corrosion, ensuring a long service life even in demanding conditions. Its composite impeller guarantees optimal performance and reliable operation, while its compact design facilitates transport and installation. The pump includes an integrated ejector with guide vanes, which enhances self-priming properties and allows it to lift liquids from a depth of up to 8 meters below the inlet level.

Key features:

• Nominal flow rate: 3 m³/h
• Nominal head: 17.91 m
• Maximum working pressure: 6 bar
• Liquid temperature: 0-40 °C (recommended operation at 20 °C)
• Casing material: Stainless steel (AISI 304)
• Impeller material: Composite PPO-20GF

The design of the JP 3-42 pump is optimized for long and trouble-free operation, with an integrated thermal protection that automatically stops the motor in case of overheating, protecting the pump and reducing the risk of failures. Additionally, it is equipped with oversized and sealed ball bearings, permanently lubricated, which minimizes maintenance and ensures quiet and efficient operation.

Key technical data:

• Operating voltage: 220-240 V, 50 Hz
• Nominal current: 3.2 A (starting current: 13.2 A)
• Nominal speed: 2850 rpm
• Protection: IP44 rating (protection against solid objects and water splashes)
• Maximum inlet pressure: 1 bar
• Connection standard: ISO 228-1
• Inlet and outlet size: G1

The JP 3-42 pump is designed to operate in environments with ambient temperatures between 0 and 40 °C, making it suitable for a variety of applications in different climates. Its self-priming capability allows it to handle a combination of air and liquid in the suction system, ensuring stable and reliable operation, even in challenging conditions.

Additional features:

• Thermal protection: Stops the pump operation if overheating is detected, protecting the motor and extending the equipment's lifespan.
• Easy installation and transport: Thanks to its compact design and the integrated handle, the JP pump is easy to transport and install in various applications.
• Standard connections: Complies with ISO 228-1 standards for easy integration with local piping systems.
• Sealed bearings: Provide quiet operation without the need for regular maintenance.

Typical applications:

The JP 3-42 pump from Grundfos is ideal for a wide range of domestic applications, such as water supply in homes, garden irrigation, and transferring water from tanks or wells. Its robustness and self-priming capability make it especially suitable for situations where water needs to be pumped from a lower level, such as in installations with suction from wells.

Dimensions and weight:

• Dimensions: 36 mm wide, 91 mm high, and 73.5 mm deep
• Net weight: 9 kg (gross weight: 11 kg)

Certifications and compliance:

The JP 3-42 pump has CE certification, complying with international safety and quality standards. Additionally, it adheres to energy efficiency regulations, contributing to low energy consumption and efficient operation.