Explosion venting technology describes one of the possible constructional protective measures against the effect of explosions. Thanks to the results of extensive explosion trials conducted in the last ten years, important gaps in our knowledge have been filled and new findings gained. Equations involving numerical values have been developed which represent an optimized mathematical matching of the innumerable experimental investigations, and which, as experience has shown, embrace the conditions of operational practice even for the most unfavourable cases. Details have also been provided on the hazards which can arise in outside areas due to flames and pressures. Calculation details are also given for the reaction forces caused by the venting process and which can lead to the equipment overturning.