Submersible pump for sewage and dirty water (free passage 50 mm), Qmax=350 l/min, Hmax= 8 m, stainless steel housing and impeller PRIOX 50-350/8 M AUT N2110150

Application and Key Capabilities in Challenging Conditions

The PRIOX 50-350/8 M AUT submersible pump is designed for operation in environments where clean water is not the only medium. Thanks to its free passage diameter of 50 mm, it effortlessly handles the flow of dirty water containing solid contaminants, making it an ideal choice for dewatering basements, absorption wells, or household wastewater treatment plants. The construction from AISI 304 stainless steel (both housing and impeller) ensures corrosion resistance, which is crucial for long-term operation in aggressive media.

A maximum flow rate of 350 l/min (approx. 21 m³/h) and a pumping head of up to 8 meters enable efficient discharge of wastewater even to higher tanks or gravity sewer systems. The 1 kW motor operates at 230 V, facilitating connection to a standard electrical network without the need for additional transformers or complex three-phase installations.

Operational Safety and Structural Reliability

Installers will appreciate the fact that the pump is equipped with a built-in starting capacitor and overload protection. This simple yet effective solution protects the motor from overheating in case of impeller blockage or excessive load, significantly extending the device's service life and reducing the risk of failure during unattended operation. The IP68 protection rating guarantees full watertightness and the possibility of prolonged submersion in water without risk of damage to the electrical system.

The F insulation class further enhances the thermal resistance of the motor windings, which is important for continuous operation or in high ambient temperatures. The entire unit weighs only 10.5 kg, facilitating transport, installation, and potential maintenance – the device can be easily moved and positioned in hard-to-reach areas without the use of specialized lifting equipment. The discharge outlet diameter is 2 inches, which standardly corresponds to most PVC pipe systems used in dewatering installations.

Practical Application of Technical Parameters

It is worth understanding how specific device features translate into its field performance. The 50 mm free passage eliminates the risk of clogging when pumping water containing sediments or small solid fragments, which is crucial for continuous operation in challenging conditions. The use of AISI 304 stainless steel in both the housing and impeller ensures durability even when in contact with aggressive municipal wastewater or groundwater with altered pH.

The pumping force enabling a head of 8 m allows water to be discharged from deep wells or lifted to the level of a main sewer located higher than ground level. Rapid emptying of flooded rooms is possible thanks to a flow rate reaching 350 l/min, shortening the time required for rescue or maintenance work. Full watertightness confirmed by the IP68 protection rating allows for prolonged operation fully submerged without fear of electrical short circuits, while the universal single-phase power supply (230 V) means that installation does not require upgrading to a three-phase system – a standard socket is sufficient.

This device constitutes a solid link in dewatering systems where reliability and resistance to harsh operating conditions are required. Thanks to its compact dimensions and lightweight construction, installation does not require complex foundation preparations – it is sufficient to properly prepare the submersion location and connect the power cable and discharge pipe.