Tap having a clamping ring on the base end portion

摘要

The invention relates to a tap for a gas or liquefied gas vessel having on a conical threaded base of the tap body a clamping ring adapted to be firmly tightened against a neck of the vessel to maintain a tight engagement of the threads of the base and the neck of the vessel in case of application of a strong impact force to the tap exteriorly of the vessel.