compititive ebidding for boiler retubing work for season 2022-23compititive ebidding for boiler retubing work for season 2022-23 compititive ebidding for boiler retubing work for season 2022-23 , 20 tph capacity boiler ( 21kg / cm2, ijt make ) , fabrication and supply of new economiser tubes fin type duly fabricated materials for fin and tube / coils are to be supplied by fabricator . both side flanges will be supplied by us . , fabrication and supply of new economiser tubes fin type duly fabricated materials for fin will be supplied by fabricator. material for tube / coilsandboth side flanges will be supplied by us . , dismanteling fabrication and erection of screen tubes ( size 76.2mmod x 4.06mm ) with satisfactoryexpansion , bellmouthing andhydraulic testing. all necessary formalities in accordance to ibr directives are to be taken up. , dismanteling fabrication and erection of superheated steam line bend ( 6 nb x sch 80 ) with satisfactory trial.material for bend is to be supplied by fabricator .all necessary formalities in accordance to ibr directives are to be taken up. , dismanteling fabrication and erection of side wall tubes ( size 76.2mmod x 4.06mm ) with satisfactoryhydraulic testing. all necessary formalities in accordance to ibr directives are to be taken up. , dismanteling fabrication and erection of roof tubes ( size 76.2mmod x 4.06mm ) with satisfactory expansion , bellmouthing hydraulic testing. all necessary formalities in accordance to ibr directives are to be taken up. , dismanteling fabrication and erection of superheated steam line ( 6 nb x sch 80 ) with satisfactory trial.material for superheated steam lineis to be supplied by fabricator .all necessary formalities in accordance to ibr directives are to be taken up. , 40 tph capacity boiler ( 45kg / cm2, lipi make ) , dismanteling fabrication and erection of superheated steam line bend ( 8 nb x sch 80 ) with satisfactory trial.material for bend is to be supplied by fabricator .all necessary formalities in accordance to ibr directives are to be taken up. , dismanteling fabrication and erection of economizer nipples ( size 38.1mmod x 4.06mm thicknessx 150mmlength ) with satisfactory hydraulic testing. materials for nipples are to be supplied by fabricator .all necessary formalities in accordance to ibr directives are to be taken up.