| 1 | 1 | A. Periodical and Regular maintenance | BI01010001010000000000000515BI0100001112 | | |
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| 2 | 1.01 | Charges for Walk down and visual inspection of HRSG phosphate dosing pumps, stirrer and HRSG drain pit pumps, carrying out minor rectification works like cleaning, arresting of gland leaks in pumps, renewal of gland packing, if necessary, topping up of oil, adjusting of stroke length, lubricating of bearings etc. as per the direction of Engineerin-charge | BI01010001010000000000000515BI0100001113 | 36 | Activities |
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| 3 | 1.02 | Charges for Walk down and visual inspection of HRSG HP/IP/LP drum system, HP/IP/LP vent system, safety valves, HP/IP/LP main Steam system, connected pipelines and valves etc., observe for any water/steam leaks and rectify the minor defects by tightening of gland/removal of gland packings and replacing by new one, lubricating of valves, easying the valve operation and renewal of gaskets as per the direction of Engineerin-charge. | BI01010001010000000000000515BI0100001114 | 45 | Activities |
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| 4 | 1.03 | Charges for Walk down and visual inspection of HRSG HP/IP/LP Feed control Station, HP/IP/LP blow down system, HP spray control station, connected pipelines and valves etc., observe for any water/steam leaks and rectify the minor defects by tightening of gland/removal of gland packings and replacing by new one, lubricating of valves, easying the valve operation and renewal of gaskets, HRSG manhole door inspection and attending minor leaks as per the direction of Engineerin-charge. | | 45 | Activities |
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| 5 | 1.04 | Charges for Walk down and visual inspection of HRSG drain system, flash tanks, IBD and CBD tanks, connected pipelines and valves etc., observe for any water/steam leaks and rectify the minor defects by tightening of gland/removal of gland packings and replacing by new one, lubricating of valves, easying the valve operation and renewal of gaskets as per the direction of Engineerin-charge. | | 45 | Activities |
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| 6 | 1.05 | Charges for minor welding defects:\nCharges for minor welding joints per joint in steam & water lines and support structures by welding as per the direction of Engineerin-charge.\n | | 20 | Joints |
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| 7 | 1.06 | Charges for High Pressure Welding upto 150mm:\nCharges for welding joints upto 150mm diameter steam / water lines using High Pressure Welder after testing the weld by using DPT kit as per the direction of Engineerin-Charge.\n | | 6 | Joints |
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| 8 | 2 | BREAKDOWN MAINTENANCE\n | | | |
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| 9 | 2.01 | Phosphate Dosing Pumps:\nDismantling of the pump & coupling, checking of suction & discharge valve replacement of gland packing, replacement of worm out bearings, worm wheel and shaft, if any, changing of old gear box oil etc., and assembling of the pump after completion of work coupling with motor as directed by Engineerin-charge. \n | | 3 | Activities |
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| 10 | 2.02 | HRSG Drain Pit Pumps:\nBreakdown maintenance of HRSG drain pit pumps like cleaning of suction strainer, decoupling of the pump inspection of the pump internals, changing of the impeller / Casing wearing / Bearing / sleeves / Oil seals etc., and coupling of the pump with motor as per the direction of Engineerin-Charge.\n\n | | 1 | Activity |
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| 11 | 2.03 | Overhauling of MOV/Hand operated valves and NRV’s upto 25mm size:\nCharges for disassembling actuator if any, removal of insulation, disassembling valve completely, overhauling of valves including inspection, cleaning of all parts, rectification of minor defects, lapping of valve seat, valve globe/gate and blue matching, assembling of valve, renewal of gland packing, assembling actuator if any, providing insulation, checking of valve operation and completing the work as per the direction of Engineerin-charge.\n | | 5 | Activities |
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| 12 | 2.04 | Overhauling of MOV/Hand operated valves and NRV’s upto 50 mm size:\nCharges for disassembling actuator if any, removal of insulation, disassembling valve completely, overhauling of valves including inspection, cleaning of all parts, rectification of minor defects, lapping of valve seat, valve globe/gate and blue matching, assembling of valve, renewal of gland packing, assembling actuator if any, providing insulation, checking of valve operation and completing the work as per the direction of Engineerin-charge. \n\n | | 3 | Activities |
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| 13 | 2.05 | Overhauling of MOV/Hand operated valves and NRV’s upto 100 mm size:\nCharges for disassembling actuator if any, removal of insulation, disassembling valve completely, overhauling of valves including inspection, cleaning of all parts, rectification of minor defects, lapping of valve seat, valve globe/gate and blue matching, assembling of valve, renewal of gland packing, assembling actuator if any, providing insulation, checking of valve operation and completing the work as per the direction of Engineerin-charge.\n\n | | 1 | Activity |
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| 14 | 2.06 | Overhauling of MOV/Hand operated valves and NRV’s upto 150 mm size:\nCharges for disassembling actuator if any, removal of insulation, disassembling valve completely, overhauling of valves including inspection, cleaning of all parts, rectification of minor defects, lapping of valve seat, valve globe/gate and blue matching, assembling of valve, renewal of gland packing, assembling actuator if any, providing insulation, checking of valve operation and completing the work as per the direction of Engineerin-charge.\n | | 1 | Activity |
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| 15 | 2.07 | Overhauling of MOV/Hand operated valves and NRV’s upto 250 mm size:\nCharges for disassembling actuator if any, removal of insulation, disassembling valve completely, overhauling of valves including inspection, cleaning of all parts, rectification of minor defects, lapping of valve seat, valve globe/gate and blue matching, assembling of valve, renewal of gland packing, assembling actuator if any, providing insulation, checking of valve operation and completing the work as per the direction of Engineerin-charge.\n\n | | 1 | Activity |
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| 16 | 2.08 | Thermal Insulation Removal for Single layerlagging and cladding. | | 10 | Sq.m |
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| 17 | 2.09 | Thermal Insulation Re-insulation for Single layer lagging and cladding.\n | | 10 | Sq.m |
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| 18 | 2.1 | HDPE line joints upto 100mm:\nCharges for removing the damaged HDPE pipeline and renewal of pipelines and fitting like stub end, flange and bend etc., and welding HDPE joint by special technique up to 100 mm size as per the direction of Engineerin-Charge. \n\n | | 1 | Joints |
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| 19 | 2.11 | HP/IP/LP Phosphate Dozing tank and stirrer:\nCharges for cleaning of phosphate dozing tank , decoupling of Stirrer and motor, cleaning the shaft and impeller, inspection of bearings, replacement of wornout bearings, assembling of the same, after completion of work, coupling with motor and normalizing as per the direction of Engineerin-charge.\n\n | | 1 | Activities |
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| 20 | 2.12 | Charges for cleaning by wire brush and enamel painting of (2 coats) HRSG structures, foundation beds, pipelines, hand rails and other equipmentsupto the height of 1.75 meters (enamel paint / AC black paint will be supplied by TANGEDCO) as per the direction of Engineerin-charge.\n\n | | 45 | Sq.m |
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| 21 | 2.13 | Overhauling of Antrieb Actuators\nCharges for disassembly of control units, drives and limit switches and drive bush, worm gear assembly, bearings and oil seal, inspection and complete cleaning, replacement of wornout / damaged parts, assembling of the above mentioned parts, testing, limit checking and commissioning of the actuator as per the direction of Engineerin-Charge.\n\n\n\n | | 1 | Activity |
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| 22 | 2.14 | Overhauling of Auma/Rotork Actuators\nCharges for disassembly of control units, drives and limit switches and drive bush, worm gear assembly, bearings and oil seal, inspection and complete cleaning, replacement of wornout / damaged parts, assembling of the above mentioned parts, testing, limit checking and commissioning of the actuator as per the direction of Engineerin-Charge.\n\n\n | | 2 | Activities |
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