Abstract: A tube (1) for an air conditioning system comprises a rigid pipe (2), a flexible pipe (3) comprising at least one layer of polymeric material; a connection (4) to fasten the metal pipe (2) to the flexible pipe (3) and comprising a bell element (13) fastened to said rigid pipe (2) and plastically deformable to close a first end portion (5) of the flexible pipe (3) over a second end portion (6) of the rigid pipe (2); and a seal (14) comprising a tubular body (20) interposed radially between the first end portion (6) and the second end portion (5) and a flange (21) interposed axially between the first end portion (6) and the bell element (13).

Abstract: A fluidic assembly for an air conditioning circuit comprises a first feeding line for a high temperature fluid, a second feeding line comprising a barrier material for a refrigerating fluid in the gaseous state, and a casing defining a first inlet and a first outlet connected to the second line; a chamber having an elongated shape and a minimum upper cross dimension as compared to the first inlet and second outlet; a second inlet and a second outlet connected to the first line; the fluidic assembly comprising a radiating body adapted to be crossed by the high temperature fluid and fluid-tightly connected to the casing between the second inlet and the second outlet within the chamber for defining an integrated silencer-exchanger assembly.

Abstract: A metal complex of a piperazineNONOate derivative of the formula: wherein a) R1 and R2 independently represent hydrogen, linear or branched (C1-C4) alkyl, optionally substituted by 1 or 2 groups selected from the group consisting of hydroxy, (C1-C4) alkoxy, (C1-C4) alkylthio, amino, (C1-C4) alkylamino, di-(C1-C4) alkylamino, carboxy, carbo(C1-C4) alkoxy, aryl, aryloxy, arylthio; or b) R1 and R2 taken together, represent one of the following groups ?CR3-aryl, where R3 represents hydrogen, (C1-C4) linear or branched chain alkyl, optionally substituted by 1 or 2 groups selected from the group consisting of hydroxy, carboxy, aryl; n represents a whole number ranging from 2 to 4; M+ represents a cation of a transition metal or zinc; x represents a whole number which varies from 1 to 3, and indicates the charge units of the cation of the transition metal or of the zinc in relation to its stable oxidation state; A ? represents an inorganic or organic anion which forms stable salts with the NONOate metal complex

Abstract: The invention relates to ligand complexes characterised by the presence of a piperazineNONOate residue with metal cations where the cations derive from a transition metal or zinc in a stable oxidation state. These complexes are nitric oxide donors and exert an endothelio-protective effect on the coronary district and stimulate re-endothelialization and angiogenesis processes. The invention comprises a preparation process and the therapeutic use of said compounds.