Abstract: The object of the present invention is a block manifold for large-sized thermal exchange batteries, comprising a one piece body having a union portion with a fluid piping to be connected to a thermal exchange battery, a plurality of branches to be connected to the pipes of the thermal exchange battery, and an intermediate distribution volume to place the union chamber in communication with the branches, wherein the intermediate distribution volume is coaxial to the union portion. The branches are divided into a first group that extends in the circle of the intermediate volume, on axes parallel to the axis of the union portion, and in a second group of branches that extends from one side of the intermediate volume, perpendicularly to the union portion. The second group of branches allows increasing the circulation of the thermal exchange battery fed by the manifold.

Abstract: A block body (11) has a fitting (12) with a fluid pipe for connection to a heat exchanger battery, two three or more branches (13) for connection to the pipes of the heat exchanger battery and an intermediate distribution chamber (14) to connect the fitting (12) with the branches (13). This intermediate chamber (14) is circular, completely closed all round and is coaxial with the union part or fitting (12).

Abstract: A block body (11) has a fitting (12) with a fluid pipe for connection to a heat exchanger battery, two three or more branches (13) for connection to the pipes of the heat exchanger battery and an intermediate distribution chamber (14) to connect the fitting (12) with the branches (13). This intermediate chamber (14) is circular, completely closed all round and is coaxial with the union part or fitting (12).