Explosion-proof pumps
The 4-pole A series is designed for pumping clear liquids and wastewater. Its wide range and high hydraulic efficiency make this series particularly useful in water treatment plants, sewer systems, agriculture, and industrial facilities, including airports, underground public transport systems, hospitals, and hotels.
The pumps can be used in all hazardous areas, in accordance with certificate CE0477 EPT 17 ATEX 2701 X, Ex II 2G [Ex db IIB T4 Gb, Ex h IIB T4 Gb, 0°≤Ta≤40°, available on request.
Characteristics
All major components are made of GG25 cast iron. Two separate mechanical seals (the motor side in the oil chamber and the impeller side in contact with the liquid), together with high-quality components, ensure excellent performance and product reliability.
A4 submersible pumps
The A4 series submersible pumps feature an open single-channel impeller, providing excellent pumping performance for raw wastewater with a function for cutting fibrous materials. On the one hand, there is only one channel, which limits flow separation in the pump’s hydraulic system, preventing fibrous materials from winding around the impeller. On the other hand, long materials are cut by the cutting pair: the impeller and the pump housing plate. At the same time, the impeller efficiency is significantly higher than that of pumps with free passage and Vortex-type impellers.
Installation of the A4 submersible pump
Because A4 series pumps are designed for professional applications, they are usually installed on DRENO-type coupling feet: A, B or DUTY in municipal and industrial pumping stations. For their control, we offer customers advanced control systems with appropriate motor protection and safeguards against pump damage, such as two independent moisture probes in the motor chamber and oil chamber, e.g. CR3.1.
We recommend consulting our specialists when selecting a submersible pump with an open single-channel impeller to confirm the required parameters of the pumping station.
Features
- Open single-channel impeller with a 75 mm free passage,
- Side pump outlet ending in a DN80 PN16 flange,
- 10 m NSSHOU-J power cable with bare terminals,
- T1-T2 thermal protection built into the motor winding and connected to an external control panel,
- 24-month warranty
- Warranty and post-warranty service
