Explosion-proof pumps
The A 2-pole series is designed for pumping clear liquids and raw sewage. The high-performance open single-channel impeller makes this type ideal for wastewater treatment plants, industrial sewer systems, agriculture, and drainage applications.
The pumps can be used in all hazardous zones 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.
Advantages of A2 pumps
The A2 series pumps feature a closed single-channel impeller with excellent raw sewage pumping characteristics. There is only one channel, which limits the division of the flow in the pump’s hydraulic system, preventing fibrous fractions from winding around the impeller. At the same time, the impeller efficiency is significantly higher than that of pumps with free passage and a Vortex-type impeller.
Installation of A2 pumps
As the A2 series pumps are intended for professional applications, they are most often installed on DRENO coupling feet of the following types: A, B or DUTY in municipal and industrial pumping stations. For their control, we offer customers advanced control systems 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 pumps with an open single-channel impeller in order to confirm the expected parameters of the pumping station.
Features
- Closed single-channel impeller with a 60 mm passage,
- Side pump outlet terminated with a DN80 PN16 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.
