DIN EN ISO 13341:2011-02

DIN EN ISO 13341 specifies the procedures to be followed when connecting cylinder valves to gas cylinders. It specifically applies to all valve and cylinder combinations connected with ISO screw threads as specified in DIN EN ISO 11363-1. DIN EN ISO 13341 defines routines for inspection and preparation prior to valving for both taper and parallel screw threads. Torque values are given in Annex A for steel and aluminium gas cylinders including composite cylinders with steel or aluminium boss. The procedures and practices given in DIN EN ISO 13341 can be beneficially applied to other valve to cylinder screw thread connection systems. For example, ISO/TR 11364 lists the valve to gas cylinder threads in use worldwide. It contains details of the thread identification codes, information on whether the threads are interchangeable with ISO threads and if the taping procedure and torque values specified in this International Standard can be used. ISO/TR 11364 gives clear guidance for the method and torque for all listed inlet threads, which are not interchangeable.