TTPS Mech II TM I Unit II Renewal of defective 250 NB class 2500 class in Boiler feed pump 2A discharge line NRV during the forthcoming annual overhaul

Charges for renewal of defective 250 NB, class 2500 class in Boiler feed pump 2A discharge line NRV during the forthcoming overhaul period of unit II Cutting the spool piece for required length from the carbon steel pipe 273mm OD x 32mm thickness and transportation to the site from the stores and devolution of the released piece to the stores - Arresting the boiler feed pump discharge pipe line Dia 273mm and 32mm thickness and releasing it after the works - Cutting by grinding and removing the NRV from the BFP discharge line and removal of drain pipe line and grinding it to fit suitably into the piece - Edge preparation of BFP discharge line and spool piece (3 joints) - Drilling and edge preparation of suitable hole for welding the drain line in the new spool piece - Positioning of spool piece in line with BFP discharge line and welding. Positioning of drain line and tag welding it with spool piece and the drain pipe line - Preheating the weld area of spool piece NRV with the BFP discharge line and drain line with spool piece ( heating coils and welding transformer are to be arranged by the contractor) - TIG welding the spool piece, NRV with the discharge line ( 3 joints) and TIG welding the drain line with the spool piece - Stress releaving the welded area of the line - Cost of Supratherme special welding electrode and T & P hire charges - Radiographic test / Ultrasonic test - Including all transportation charges.

BHARATHI ENTERPRISES (BID ID -1551585)