Important: For optimal ventilation, sufficient free cross-sectional area of the grille is necessary in relation to the bearing size. For a pellet bearing size of < 10 tons, the BVD25 can be used. For larger bearings with a capacity of up to 22.5 tonnes, more cross-sectional area should be available according to the standard specification, which is why the BVD60 is recommended. For bearings with an even larger capacity, we recommend the use of fan covers with forced ventilation.

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