RFD duplex filter is composed of two single-barrel filters and two-position six-way directional valves, simple structure, easy to use, and with bypass valve and filter element pollution blockage transmitter to achieve the purpose of system safety.
In principle we recommend that the filter element is changed every 6 months or upon indication.
We recommend installing the filter with a clogging indicator (visual and/or electrical or electronic) to monitor the filter element.
When no clogging indicator has been installed, we recommend changing the elements at specific intervals. (The frequency of changing the filter elements depends on the filter design and the conditions under which the filter is operated). When filter elements are subject to high dynamic loading it may prove necessary to change them more frequently. The same applies when the hydraulic system is commissioned, repaired or when the oil is changed.
The standard clogging indicators only respond when fluid is flowing through the filter. With electrical indicators the signal can also be converted into a continuous display on the control panel. In this case the continuous display must be switched off during a cold start or after changing the element.
If the clogging indicator responds during a cold start only, it is possible that the element does not yet need to be changed.
