supply PFA coated stainless isotank 19,000kg for storing Electronics grade sulfuric acid
Supply PFA coated stainless isotank 19,000kg for storing Electronics grade sulfuric acid
Design and manufacuture standard according to JB/T4710-2005 《Steel Vertical Vessels Supported by Skirt》Manufacture and inspection according to the《 Specification of Columns Design》
Use arc welding, rod bar No: Among J422, 16MnR and carbon steel J427
Carbon steel body with lining PTFE or ETFE, the length for each section is 3m, and the body with plate or support should weld flange between them.
Welding joint and size according to HG20583-98《Specification for structural Design of Steel Chemical Vessels》, among which the A, B type adapt the two sides through welding, flange and joint welding accoding to relatvie rule.
This equipment A,B type welding joint should conduct 20% radiography, magnetic particle testing must be done at skirt and dished ends welding, which should be conform to JB/T4730-2005, I grade.
Equipment lining PTFE/PFA should apply composite processing technology of board lining with high temperature and heating with pressure , ETFE should apply heat roller coating processing, and ECTFE with heating spray coating processing.
Spark test: voltage 12KV at a certain scanning speed, and no pinhole is qualified.
Housing/Shell inspection and pretreatment should be done before lining process