TK 811 in shazand, arak petrochmical

PWHT on Spherical tank in Arak petrochemical

PWHT on TK-810 , TK-811 in Shazand, Arak Petrochemical In Jan,2014 Tank Detail: External Dia: 18m Maximum Thickness: 50mm PWHT Process detail: Heating Rate: 52’C/Hr Holding Temperature: 580~620 ‘C Cooling Rate: 65’C/Hr Ambient temperature during PWHT was -10’C