Explosion-proof design with ATEX certification
The DNA-EX series is used for pumping biological liquids and wastewater. The large free passage for solids makes it ideal for treatment plants, public and private sewage systems, and the livestock industry.
Pumps in this series can be used in all potentially explosive atmospheres, in accordance with the certificate available on request.
Characteristics
All major components are made of GG20 cast iron. The double mechanical seal in a back-to-back configuration, located in the oil chamber, guarantees a long product service life.
Advantages of DNA-EX pumps
The DNA-EX sewage pump is an ideal solution for those looking for a professional product for use at home or in a small business. The free passage of the DNA-EX sewage pump is the best alternative to pumps with macerators, which often become clogged and expose the user to operating difficulties. The large free passage under the impeller for solids measuring from 45 to 80 mm (depending on the model) ensures long-term operation without the need for intervention. Open, six-blade Vortex impellers handle even fibrous wastewater contents perfectly, whereas macerators act like winding devices. Macerator blades quickly become blunt in wastewater, act like wedges, and block the pump. Sewage pumps with such a large free passage under the impeller are free from these disadvantages. The impeller’s thick walls are sufficient for many years of operation in raw domestic wastewater. Connection flanges allow installation with any coupling feet featuring holes according to DN50-80 PN10.
When selecting a pump, check the parameters of the available pipeline, as the discharge pipe diameter or the terrain geometry may sometimes require the use of a higher-power pump.
Control
The DNA-EX sewage pump is available in two power supply versions: single-phase and three-phase. Floats are available as separate accessories connected to the special EMX-EX barrier (a relay in the control cabinet). To control the operation of DNA-EX pumps (except versions with a built-in float), we recommend the simple M121 controllers (230 V); suitable control cabinets ensuring compliance with ATEX conditions can also be used.
Installation methods
Thanks to the DN flange, DNA-EX pumps are commonly installed on coupling feet in domestic, municipal, network, and rainwater sewage pumping stations. When fitted with a suitable hose connection (an elbow ending in a plain end), they become portable drainage pumps for handling liquids with a high content of solids (gravel, sand, and debris). The DNA-EX sewage pump can be used without difficulty to water a garden with rainwater, drain a flooded garage or basement, or pump water from a pond or ditch into another tank. DNA-EX pumps have stable feet protruding from the pump body, allowing them to stand on level ground and providing sufficient clearance beneath the body for water intake.
Like every DRENO sewage pump, DNA pumps also come standard with a 10-meter power cable. They work perfectly with DRENO coupling feet: DUTY50, DUTY 65, DUTY 80 and B5.
Features
- Explosion-proof pumps with ATEX certification,
- Low pump weight,
-
65 mm free-passage Vortex impeller,
- Horizontal pump outlet with DN65 PN10 flange,
- 10 m power cable terminated with free leads,
- Thermal protection built into the motor winding,
- Warranty and post-warranty service,
- 24-month warranty.
