Product News: Lightweight EFDA Duplex Filter Series
For industrial applications where it is necessary to keep the system running while performing maintenance and filter element change tasks, we recommend a duplex filter with two separate filtration chambers in one assembly.
New In-line Duplex Filter: low pressure filter for continuous operation
As addition to our portfolio we introduce the new change-over filter series EFDA, as lightweight equivalent to the EFDM high pressure duplex filter series.
For hydraulic systems with low operating pressure and high flow rates, the EFDA is a suitable match. The aluminum housing not only provides the advantage of being a lightweight alternative, but also reacts to growing demands of a cost-efficient filtration solution for industrial applications.

Function and Features of the EFDA
Both filter elements are assembled parallel with horizontally located inlet and outlet. The handle to operate the change-over valve is centered between both interconnected filter heads. Safe operation of the handle, also with one hand, is ensured by the integrated pressure equalization line.
Equipped with a differential pressure clogging indicator, the filter elements’ condition can be monitored either visually or remotely via electric signal. Thus assuring optimal protection of critical system components. The integrated flow change-over valve as well as the check valves at both elements outlets are 100% tested for leakage during assembly to ensure that there is no leakage during servicing of the contaminated filter side.
Technical Specifications
| EVOTEK EFDA Sizes | : | 160 l/min to 400 l/min |
| Filtration Degree | : | 3µm fibreglass to 125µm wire mesh |
| Operating Pressure | : | max. 25 bar |
| Burst Pressure | : | min. 75 bar |
| Element Collapse Pressure | : | 21 bar |
| Clogging Indicator Setting | : | Δp 2.5 bar (± 10%) or Δp 5 bar (± 10%) |
| Connection Ports | : | G 1¼”, G1½”, SAE DN40 3000psi |
| Material | : | Aluminium Housing / NBR or FKM Seals |

