Explosion-proof pumps
The 4-pole A series is designed for pumping clear liquids and wastewater. Its wide range and high hydraulic efficiency make it particularly suitable for 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.
Features
All main components are made of GG25 cast iron. Two separate mechanical seals (on the motor side in the oil chamber and on the impeller side in contact with the liquid), together with high-quality parts, ensure excellent performance and product reliability.
A4 Submersible Pumps
A4 series submersible pumps feature a closed, single-channel impeller, which delivers excellent performance when pumping raw sewage. The single channel limits flow separation in the pump’s hydraulic system, preventing fibrous materials from winding around the impeller. At the same time, the impeller is considerably more efficient than those in pumps with a free passage and a Vortex-type impeller.
Installing the A4 Submersible Pump
W since A4 series pumps are designed for professional applications, in most cases they are installed on DRENO-type guide rail couplings: A or B in municipal and industrial pumping stations. We offer customers advanced control systems for operating them, with appropriate motor protection and protection against pump damage, such as two independent humidity 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 110 mm passage,
- Side pump outlet with DN200 PN10 flange,
- 10 m NSSHOU-J power cable terminated with free terminals,
- T1-T2 thermal protection built into the motor winding, connected to an external control panel,
- Warranty and post-warranty service,
- 24-month warranty.
