It is intended to provide a excess flow valve is to be provided, which can be introduced into a gas fitting, without an additional machining is required. Furthermore, the excess flow valve be fixed in its position.The housing of the gas flow is more in a sleeve (4) attached in a gas-tight manner, which on its outer surface (17) a circumferential groove (18), in which a retaining ring (19) is mounted, whose outside diameter in the relaxed state is greater than the by the cross section of the hollow space (15) is formed on the other side of the effective internal diameter. In this case, the snap ring (19) in the relaxed state a with respect to the outer surface (17) by at least a third of the wire thickness smaller inner diameter, whereas the inside diameter in the tensioned state is greater than the depth of the groove (18) which determines the diameter is. Furthermore, the sleeve (4) at its end facing away from the cavity (15) a collar (5), which is at the end face (16) is supported.The excess flow valve serves to automatically close gas lines in the event of an impermissible by means of flow increasing.
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