The DNA series is designed for pumping biological liquids and wastewater. Its large free passage for solids makes it ideal for treatment plants, public and private sewage systems, and the livestock industry.
Characteristics
All major components are made of GG20 cast iron. The double mechanical seal in a back-to-back configuration, located in an oil chamber, guarantees a long product service life.
Advantages of DNA pumps
The DNA sewage 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 sewage pump is the best alternative to pumps with macerators, which often become clogged, exposing users to operational difficulties. The large free passage under the impeller for contaminants 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 sewage content perfectly, whereas macerators act like winding devices. Macerator blades quickly become blunt in sewage, acting like wedges and blocking the pump. Sewage 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 sewage. Connection flanges allow installation with any coupling feet featuring holes according to DN.
When selecting a pump, the parameters of the available pipeline should be checked, as the discharge pipe diameter or terrain geometry may sometimes require the use of a higher-power model.
Control
The DNA sewage pump is available in four versions, combining single- and three-phase power supplies with control by an integrated float or an external signal. To control DNA pumps (except versions with an integrated float), we recommend the simple M121 (230 V) controllers, as well as the M131 (400 V). For more demanding users and two-pump pumping stations, we offer professional relay- and contactor-based power and control cabinets: SPP and SPS.
Installation methods
Thanks to the DN flange, DNA pumps are commonly installed on coupling feet in domestic, municipal, network, and stormwater sewage pumping stations. When fitted with a suitable hose connection (an elbow ending in a plain end), they become portable pumps for drainage and for handling liquids with a high content of solids (gravel, sand, waste). The DNA 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 pumps have stable feet extending from the pump body, allowing them to stand on level ground while providing adequate clearance under the body for water intake.
Like every DRENO sewage pump, the DNA comes standard with a 10-metre power cable. They are fully compatible with DRENO coupling feet: DUTY50, DUTY 65, DUTY 80 and B5.
Features
- Low pump weight,
- Vortex impeller with an 80 mm free passage,
- Horizontal pump outlet with a DN80 PN16 flange,
- 10 m power cable terminated with free leads,
- Thermal protection built into the motor winding
- Warranty and post-warranty service
- 24-month warranty
