Preparation and operation process of blind flange pumping and blocking operati……
Large blind flange pumping and blocking operations above DN1400 occur less frequently in the daily maintenance and project expansion of the gas system of iron and steel enterprises. Such operations are relatively complex, requiring high preparation and cooperation of personnel and machines. The operation with gas takes a relatively long time and is dangerous. By sorting out the preparation process and operation process, the whole process of pumping and blocking operation will be standardized and institutionalized to improve the operation efficiency and ensure the smooth and safe process of blind flange pumping and blocking operation. As the main carrier of […]