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 suitable for water treatment plants, sewer systems, agriculture and industrial facilities, including airports, underground public transport, hospitals and hotels.
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.
Specifications
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 components, ensure excellent performance and product reliability.
A4 Submersible Pumps
A4 series submersible pumps have an open single-channel impeller, i.e. an impeller with excellent raw sewage pumping performance and the ability to cut fibrous materials. On the one hand, there is only one channel, which limits flow separation in the pump's hydraulic system, preventing fibrous matter 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 is much more efficient than those in pumps with free passage and Vortex-type impellers.
A4 Submersible Pump Installation
With the A4 series pumps designed for professional applications, they are installed in most cases on DRENO coupling feet of the following types: A, B or DUTY in municipal and industrial pumping stations. We offer customers advanced control systems for these pumps, equipped with appropriate motor protections 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 an open single-channel impeller to confirm that it will meet the expected pumping station performance requirements.
Features
- Open single-channel impeller with a 75 mm passage,
- Side pump outlet fitted with a DN80 PN16 flange,
- 10 m NSSHOU-J power cable with unterminated ends,
- T1-T2 thermal protection built into the motor winding, connected to an external control panel,
- 24-month warranty
- Warranty and out-of-warranty service
