China Cold Rolled Boiler Economizer Air Preheater Enameled Tubes for Sale, Find details about China Enamel Pipe, Chemical Enamel Pipe from Cold Rolled Boiler Economizer Air Preheater Enameled Tubes for Sale
Enamel thickness | About 0.3mm (or according to the actual situation) |
Curvature | less than 5% |
Appearance | smooth, without sagging and bottom leakage |
Steam resistance | allowable weight loss ≤ 4mg / M ² |
Sulfuric acid resistance | allowable weight loss ≤ 3.5mg/m ² |
Boiling water resistance | allowable weight loss ≤ 2.2mg/m ² |
Chilling test | circulate in cold water from 360 ºC to room temperature for 5 times |