CLOSING FLANGE OF A RESERVOIR AND RESERVOIR

摘要

The present invention relates to a closing flange (4) of a reservoir (1). The flange comprises a flange body (14) made of a composite material (polypropylene reinforced with glass fibres) and at least one bush (30) or an insert (50) of metal material (brass), buried in the matrix of the flange body thanks to the co-moulding production process. The flange can be made in at least two versions: closed at the centre or drilled at the centre and provided with a central bush (90) for inserting an electrical resistance. The flange in the two versions is thus usable both for making reservoirs and water heaters.