Better Values – More Power
For a pumped storage power plant at the Eder in Hessen, D&D has commissioned a filter station consisting of two automatic backwashable filter units, type Filterautomat DDF, (coarse and fine filtration with 3 mm and 200 µm). The mechanical seal water of the turbine and the control water of the pump are filtered.
The Filterautomats DN 200 / PN 63 were mounted in series on a frame to save space. This automatically backwashable stage filtration replaces the previous manual filters and thus minimises costly maintenance and servicing work.
The special feature of this filter station is the design for alternating stress due to possible pressure fluctuations (hydraulic short circuit) and the welded steel construction for pressure stage PN 63.