Self-priming domestic water booster pump HWJ 202-EM-2 2549379

Domestic booster set – a reliable water source for your home

Are you looking for a water supply solution that will provide you with comfort and safety? The HWJ 202-EM-2 self-priming domestic booster set is an ideal choice for both installers and end-users. Thanks to its design and performance, this device guarantees stable water pressure throughout the system. It is a perfect solution for single-family homes where water consumption varies.

The HWJ 202-EM-2 booster set is designed to work with clean water drawn from wells (up to a depth of 7 meters) or tanks. Its solid construction based on stainless steel 304 (1.4301) ensures long-lasting and trouble-free operation. The pump is equipped with a motor designed for continuous operation and thermally protected – which translates to greater durability and a lower risk of failure.

Construction and application

This booster set is a complete set, ready to connect. It consists of a self-priming pump and a diaphragm tank with a capacity of 20 liters (not specified in the technical data, but resulting from the product description). This tank reduces the frequency of pump starts, which extends its life and reduces energy consumption. The device is characterized by quiet operation, which is particularly important in residential buildings.

• Self-priming: Eliminates the need to manually prime the pump before the first start-up or after a longer period of inactivity.
• Stainless steel: Both the pump housing and impeller are made of stainless steel 304 (1.4301), which guarantees corrosion resistance and longevity.
• Performance: The maximum pump capacity is 4.5 m³/h, and the maximum head is 36.55 meters – ensuring adequate water flow even at higher points in the building.
• Versatility: Possibility of connection to an installation powered by 230V (50Hz).
• Energy efficiency class IE1: The motor meets energy efficiency standards, which translates to lower operating costs.
• Protection class IP44: Provides protection against splashing water and solid objects larger than 1 mm – allows installation in various environmental conditions.

Technical parameters in practice

The motor output power (P2) is 0.55 kW with a rated current of 4A – this is sufficient power for efficient water pumping in typical domestic conditions. The pressure class of the inlet and outlet flanges PN 6 and the nominal diameter of the connection 1 inch (25 mm) ensure compatibility with most standard plumbing installations. The ambient temperature range is from 3 to 40°C, and the medium temperature from 5 to 35°C – allowing for year-round use of the device.