PS II 2X 600 MW MI Circle BM Division Unit II Boiler Lifting the level of low point drain station

Amount

Fixing of higher ton capacity chain blocks arrangement and fabrication of special type fixtures at various locations for moving & lifting the pipeline of Dia 219.1 x 28mm thk, Dia 168.3 x 21.95mm thk,Dia 88.9 x 11.13mm thk, Dia 73 x 9.53mm thk & Dia 48.3 x 7.14mm thk along with valves each line from its position to facilitate cutting, welding and to attend the re-routing works by using special type fixture for holding, moving and alignment in Waterwall drain station. Charges inclusive of consumables and T&ps.

Charges for cutting the existing waterwall drain station pipeline Dia 219.1 x 28mm thk, Dia 168.3 x 21.95mm thk,Dia 88.9 x 11.13mm thk, Dia 73 x 9.53mm thk & Dia 48.3 x 7.14mm thk edge preparation by grinding after moving and lifting to the required position, holding, fit-up, checking alignment in the required pipeline preparation of temporary supports, clamps etc. Charges inclusive of consumables and T&ps.

Charges for welding the waterwall drain station pipeline Dia 219.1 x 28mm thk, Dia 168.3 x 21.95mm thk,Dia 88.9 x 11.13mm thk, Dia 73 x 9.53mm thk & Dia 48.3 x 7.14mm thk by IBR quality welding includes edge preparation, fit up, Preheating and post heating and completion of welding. Charges including consumables and T&P’s.

Charges for Conducting Ultrasonic Test before & after stress relieving in waterwall drain station pipeline joints involve, applying the solution near welded surfaces, checking the strength of root and filler welding using special ultrasonic kit, identify the defect if any including Hire charges for T&P's and Consumables.

Charges for Conducting Stress relieving in welding joints by electric resistance heating in waterwall drain station line involves, Cleaning on welding surface free of grease and dust for avoid short circuit, Ceramic beaded heating coils wrapped all round weld area of waterwall drain station line, Ceramic blanket wrapped around heating coils to avoid temperature difference, Thermocouple attaching in the weldment area, starting the heat treatment cycle on an auto program by Programmable temperature control box, where in heating rate is maintained 110 deg per hour, soaking time starts when all thermocouple achieve the temperature of 625 deg and Soaking time 75 minutes, after attaining 300 deg power could turned off & on cooling the weld to below 150 deg the insulation / elements etc., could be removed completion of soaking time, including Hire charges for T&P's and Consumables.

Charges for dismantling of chain block arrangement and special type fixtures after completing the moving the pipeline from its position by cutting, welding and attending the re routing works in waterwall drain station line. Charges including consumables and T&P’s.

Charges for renewal of defective Boiler drain lines of sizes OD 33.4 x 6.35mm thk inclusive of transportation, cutting of defective portion of tubes edge preparation, welding of new spool piece with IBR welder. (Bends, Pipes & Valves will be given by board at free of cost). Charges including consumables and T&P’s.

Charges for leading, lifting and transportation of iron and steel materials from store to site. ( Elevation -> 0 to 9 Mtr ) Charges including consumables and T&P’s.

Charges for fabrication and erection of MS structurals and patch up work ( Elevation -> 0 to 9 Mtr ). Charges including consumables and T&P’s.

ferrofabs (BID ID -1116452)