MTPS I TM UNIT I Gasket renewing of 600 500 350 300 250 200 150 mm Valves Gasket renewing of 350 300 200 150 mm cooling line orifice plates Flanges in Unit I during bearing high vibration problem rectification work

Amount

Gasket renewing for 400/500/600 mm valve, This work involves removing the valve from line, Cleaning the flange surface on both sides, Preparation of gaskets for both ends, positioning the valve in the line with gaskets and tightening the flange bolts & nuts. (Tag No: ES- 13 & 14- 2 Nos and MC-1 &2-2Nos Total=4Nos)

Gasket renewing for 250/300/350 mm valve, This work involves Removing the valve from line, Cleaning the flange surface on both sides, Preparation of gaskets for both ends, positioning the valve in the Line with gaskets and tightening the flange bolts & nuts. (Tag No: MC-18,20,22,23,29,30,31,33, 34,35,36,37,38, 39,40,41,55,56,57 &58,ES-9 &12, BFP Suction -2A, 2B&2C, Deaerator NRV-1No -Total= 26 Nos)

Gasket renewal works of BFP to Deaerator 100 mm RC line Orifice flanges 3Nos at deareator floor GV,GLV 100mm/40 ATA in MC lines. This work involves dismantling the flange bolts and nuts,removing the orifice platecleaning the flange surface, preparing the 2Nos of gaskets, positioning the flanges & gaskets and tightening the flange bolts and nuts. (Tag No– MC-3,32 49,50 & RC line Orifice flanges-2A, 2B & 2C= 7 Nos)

Gasket renewing for 250/300/350 mm valve, This work involves Removing the valve from line, Cleaning the flange surface on both sides, Preparation of gaskets for both ends, positioning the valve in the Line with gaskets and tightening the flange bolts & nuts. (Tag No: ,AS-58, CA-1 & 2- 3 Nos , Main CW LOCPB I/L & O/L header valves from tunnel - 2 Nos, H2CWBP I/L & O/L header valves from tunnel - 2 Nos, TLOCBP I/L & O/L valves=4 Nos,H2CPB I/L & O/L valves-4Nos, Total-15 Nos.

Gasket renewing for 150/200 mm valve, This work involves Removing the valve from line, Cleaning The flange surface on both sides, Preparation of gaskets for both ends, positioning the valve in the Line with gaskets and tightening the flange bolts & nuts. (TagNo HD-16,17,22,23,24,25,26,27,28, 29,31,32,35, 38,39,40,41,42,43,46,47,48, 49,51,52,58,60 –27 Nos, ACW to TLOCBP inlet & outlet header interconnection line valves-2 Nos, CA-03,04,05,06 –4 Nos, AS-1,2,3,4, 5,6 & 31–7 Nos, VHCS-52, 53, 54, 58, 57,120,121-7Nos and Deaerator pressure control valve Total–48 Nos)

Gasket renewing for 50 mm /40ATA/ 800 class valve. This work involves Removing the valve from line, Cleaning The flange surface on both sides, Preparation of gaskets for both ends, positioning the valve in the Line with gaskets and tightening the flange bolts & nuts. Tag No- AS 21 to 30 = Total=10Nos

Gasket renewal works in 350 / 300 mm Cooling water lineorificeplate flanges This work involves dismantling the flange bolts and nuts, removing the orifice plate and differential pressure line flanges, cleaning the flange surfaces, preparing the 2 sets (1 set = 2 Nos) of gaskets, positioning the flanges & gaskets and tightening the flange bolts & nuts. (Tag.No.TLOCBP and H2CBP O/L header each 1 No – Total =2 Nos)

Gasket renewal works in 200 / 150 mm Cooling water line orifice plate flanges This work involves dismantling the flange bolts and nuts, removing the orifice plate and differential pressure line flanges, cleaning the flange surfaces, preparing the 2 sets of gaskets, positioning the flanges & gaskets and tightening the flange bolts & nuts. (Tag.No. TLOC A, B & C O/L – 3 Nos, Seal oil cooler –A & B outlet – 2 Nos, ACW main outlet A, B, C – 3 Nos, WOC outlet A, B, C- 3 Nos, SWC A & B Outlet-2 Nos and H2 Cooler outlet- 4 Nos- Total = 17 Nos)

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