Explosion-proof pumps
The four-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, sewage 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 a closed, single-channel impeller with excellent pumping characteristics for raw wastewater. There is only one channel, which limits the division of the flow in the pump’s hydraulic system, preventing fibrous materials from winding around the impeller. At the same time, the impeller efficiency is significantly higher than that of pumps with a free passage and a Vortex-type impeller.
Installation of the A4 submersible pump
As A4 series pumps are intended for professional applications, they are most often installed on DRENO coupling feet of type: A or B in municipal and industrial pumping stations. For their control, we offer customers advanced control systems with suitable motor protection and safeguards against pump damage, such as two independent moisture probes in the motor and oil chambers, e.g. CR3.1.
We recommend consulting our specialists when selecting a submersible pump with a single-channel impeller to confirm the required pumping station parameters.
Features
- Closed single-channel impeller with an 80 mm free passage,
- Side pump outlet terminated with a DN150 PN16 flange,
- 10 m NSSHOU-J power cable with free terminals,
- T1-T2 thermal protection built into the motor winding and connected to an external control panel,
- Warranty and post-warranty service,
- 24-month warranty.
