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, installed in an oil chamber, ensures a long product service life.
Advantages of DNA-EX pumps
The DNA-EX wastewater pump is the 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 wastewater pump is the best alternative to pumps with macerators, which often become clogged, causing operating difficulties for the user. 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 machines. Macerator blades quickly become blunt in wastewater, acting like wedges and blocking the pump. Wastewater pumps with such a large free passage under the impeller are free from these disadvantages. The thick impeller walls are sufficient for many years of operation in raw domestic wastewater. The 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 site geometry may sometimes require the use of a higher power rating.
Control
The DNA-EX wastewater pump is available in two power supply versions: single-phase and three-phase. Float switches are available as separate accessories and are connected to a dedicated EMX-EX barrier (a relay in the control cabinet). To control the operation of DNA-EX pumps (except versions with a built-in float switch), we recommend simple controllers M121 (230 V); suitable control cabinets ensuring compliance with ATEX requirements may also be used.
Installation methods
Thanks to the DN flange, DNA-EX pumps are commonly installed on coupling feet in domestic, municipal, and network wastewater pumping stations, as well as stormwater pumping stations. With a suitable hose connection (an elbow ending in a plain end), they become portable dewatering pumps for liquids with a high solids content (gravel, sand, and debris). The DNA-EX wastewater pump can be used without difficulty to water a garden with rainwater, drain a flooded garage or basement, or transfer water from a pond or ditch to another tank. DNA-EX pumps have stable feet extending from the pump body, allowing them to stand on a level surface and providing sufficient clearance beneath the body for water intake.
Like every DRENO wastewater pump, DNA pumps also come standard with a 10-metre 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,
-
Vortex impeller with a 50 mm free passage,
- Horizontal pump outlet with a DN50 PN10 flange and 2" internal thread,
- 10 m power cable ending in a starting box,
- Thermal protection built into the motor winding,
- Warranty and post-warranty service,
- 24-month warranty.
