This International Standard 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 ISO 10920 and ISO 11363-1. It 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.
NOTE The procedures and practices specified in this International Standard can be beneficially applied to other valve
to cylinder screw thread connection systems. ISO/TR 11364[4] lists the valve to gas cylinder threads in use worldwide. It
gives details of the thread identification codes, 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[4] gives clear guidance
for the method and torque for all listed inlet threads, which are not interchangeable.
ISO 13341:2010 Referenced Document
ISO 11114-2 Gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 2: Non-metallic materials*, 2021-09-30 Update
ISO 11119-2 Gas cylinders — Design, construction and testing of refillable composite gas cylinders and tubes — Part 2: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with load-sharin*, 2023-05-11 Update
ISO 11119-3 Gas cylinders — Design, construction and testing of refillable composite gas cylinders and tubes — Part 3: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with non-load-sh*, 2023-07-11 Update
ISO 15245-1 Gas cylinders - Parallel threads for connection of valves to gas cylinders - Part 1: Specification*, 2021-04-30 Update