carbon steel blind flange  

Application of the blind plate 1. In the initial start-up preparation stage, when the strength test or tightness test of the pipeline is carried out, it cannot be carried out simultaneously with the connected equipment (such as turbines, compressors, gasifiers, reactors, etc.) Next, a blind plate needs to be installed at the connection between the equipment and the pipeline. 2. For various process material pipelines connected outside the bounded area to the bounded area, when the device is shut down, if the pipeline is still in operation, a blind plate is installed at the cut-off valve. 3. When the device is multi-series, the main pipeline from outside the boundary area is divided into several sub-pipelines to enter each series, and blind plates are installed at the shut-off valves of each sub-pipeline. 4. When the device needs to be regularly maintained, inspected or switched between each other, and the equipment involved needs to be completely isolated, a blind plate should be inst…