This standard specifies the technical requirements, test methods and inspection rules, marking, packaging, transportation and storage of steel dryers for papermaking machinery. This standard applies to steel drying cylinders with a diameter of no more than 3800mm and a working pressure of no more than 0.8MPa and steel hot press cylinders with a working pressure of no more than 1.0MPa (hereinafter collectively referred to as "drying cylinder").
QB 2552-2002 history
2002QB 2552-2002 Technological condition of steel dryers used in paper machinery