supply of heat exchangers x for guwahati refinery revamp of cdu, nsf and nsu of indian oil corporation limited, india supply of heat exchangers x for guwahati refinery revamp of cdu, nsf and nsu of indian oil corporation limited, india , residual design & engineering, procurement & supply of all materials and bought out components, weld preparation, fabrication, assembly / subassembly at shop, testing at manufacturer workshop, inspection including all ndt, pwht ( as applicable ) , ibr testing, carrying out design calculations as per required code & std.& obtaining approval for ibr & others for e-031. surface preparation & primer + finish paint application, packing & forwarding ( seaworthy if imported ) , supply of mandatory spares, supply of accessories like test rings, test flanges, etc. documentation as per the enclosed standard and specifications, instructions to vendors, job specification, data sheets etc. and other codes and standards attached or referred to. , procurement of reboiler e-031 ( stabilizer reboiler ) : new equipment e-011 / 011a to be replaced with single reboiler e-031 as per revamp condition. , procurement of shell & tube heat exchangers e-032 ( splitter-1 bottom ) : e-032 is a new equipment required as per revamp condition. => limited