Interval distance for setting rupture discs on long-distance pipelines

In accordance with China’s Work Safety Law and Coal Mine Safety Regulations, there are specific requirements regarding the spacing between blast valves installed on long-distance pipelines: 1. The spacing between blast valves should be determined based on factors such as the pipeline’s length, diameter, material, and pressure, in order to ensure safety. 2. Under normal circumstances, the installation spacing of pipeline rupture discs should not be less than 200 meters. 3. For long-distance pipelines in special situations, the spacing can be increased or other protective measures can be taken according to the actual conditions. 4. The placement of blast fragments must comply with design specifications, and corresponding safety assessments and verifications are required. It should be noted that the specific spacing between rupture disks may vary depending on factors such as industry, project, and region. It is recommended to refer to relevant industry standards and specifications in specific projects, and to consult professional engineers for advice. .

For dust pipelines, the requirements specified in GB15605-2008 \"Guidelines for Pressure Relief in Dust Explosions\" are as shown in the figure below. For gas pipelines, no relevant requirements exist.