| 摘要 |
They comprise arranging, in the inlet openings for the fluids to be filtered by the hood, paired double guide frames, which are immediate and superposed for supporting pairs of filter modules, the outside ones flush with the basic frame of the hood and the immediate ones slightly displaced inwards, including a tube originating from the water mains supply, provided with a control valve, which passes longitudinally through the body of the hood in its plane of symmetry and is equipped with a diversity of spraying nozzles facing the inner planes of the filter modules, and also an external reservoir for liquid detergent which, by means of tubing with control valve, is inserted in the aforesaid water-supply circuit. <IMAGE>
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