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LEEMIN SZU-A,SQU-A,SWU-A,SXU-A series Duplex Return Line Filter
The SZU-A SQU-A SXU-A SWU-A Duplex return line filter series are composed of two single bowl filters and one 2-position 6-way directional valve. It is simple in structure and easy to use, There is by-pass valve and contamination indicator in it, for protecting the hydraulic system safety.
The feature of this filter allows continues operation during replacing the element which is clogged by contaminant. By opening the balance valve and turning the direction valve, the other filter will be working, the clogged element should be changed at that time..
This series filter is widely used in the hydraulic systems of heavy-duty mining and metallurgical machines.
◆ 1. Install the duplex filter to the working system.
◆ 2. Filter installation is completed , open the inlet and outlet valve of the filter , the system start to working.
◆ 3. When the CMS-I is alarm (differential pressure is achieved 0.35MPa), pls change the switch valve and let the spare filter to work.
◆ 4. Open the vent valve(on the upper cap) and blowdown valve (on the bottom cap), let the dust fluid drain off the filter completely.
◆ 5. Open the upper cap of filter, take our the filter element .
◆ 6. Clean or change the filter element , then install the filter element and upper cap.
◆ 7. Closed the vent valve and blow down valve and let this filter to be a spare filter to wait once again the replacement.
