Abstract： Due to the special internal medium impact and construction phase condition, pneumatic pressure test must be carried out for pressure pipelines. Pipeline pneumatic pressure test has the advantages of low cost and short time consuming, but the risk is high. To ensure the smooth progress of the pneumatic test, we need to strengthen the control of safety technologies and safety management. For the safety technology aspect, in addition to the general requirements of the technical aspects, more attention should be paid to the safety valve design, so as to ensure the timely gas discharge in the overpressure case. Generally, fully open safety valves are used, with the pressure limit set to no higher than 1.1 times the test pressure of the pipeline. The gas energy in the tested pipeline is calculated and then converted into TNT equivalent. According to the air explosion shock wave equation given in related regulations, combined with the body injury research results, we can get the safe distance for a pipeline with certain pressure and capacity. For the safety management, organization management, emergency management, flange management, process control and other aspects of pipeline pneumatic test are discussed.
