Cap of improved drum for transfer of liquids with control of relative humidity, characterized by being formed by two parts, a part dedicated to the transfer and another part dedicated to the drying of the air that is introduced inside the container (3) of storage of liquid materials (2) that react with moisture and being that the only air that enters the interior is the air previously dried through the dehumidification device, being provided in turn with a system for viewing and reviewing the degree of humidity relative to the internal atmosphere of the storage container (3) through a sensor (10) that is placed on the end of a cylinder and equipped with an exhaust valve (9) that for safety opens when a certain pressure is exceeded, operating with any liquid material so that the assembly of the container (3) -stop (11) and the liquid transfer means with relative humidity control is hermetic. (Machine-translation by Google Translate, not legally binding)
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