Pressure test of through out pigging: inspect pipe deformation and construction quality. Exhaust before water pressure test, drainage before manufacture, dryness and medium isolation.
Pressure test of through out pigging: inspect pipe deformation and construction quality. Exhaust before water pressure test, drainage before manufacture, dryness and medium isolation.
总通清管试压：检测管线变形、施工质量。水压试验前排气、生产前排水、干燥、介质隔离。