Method for connecting, in a fluid manner, a system (100) for fluid communication comprising a first (10) and a second (20) fluid valve and comprising the following steps:—providing a first (10) and a second (20) fluid valve, —providing a first pipe (60), —inserting each of the ends (61, 62) of the first pipe (60) into each of the fluid valves (10, 20) in order to form a fluid assembly (100), —providing a compression means (1) comprising two ends (2, 3), —positioning said two ends (2, 3) of said compression means (1) on either side of said fluid assembly (100), —applying a compression force onto said fluid assembly (100) via the compression means (1).