TTPS Operation Circle CAD Water leak arresting by patch welding clamping the punctured portion of various sizes of Sea Water, service water and Raw water pipe lines and replacement of 300,200,150NB pipelines and overhauling of 100NB gate valves

Charges for attending the punctured portions of 300 / 200 / 150 / 100 NB service water/ raw water pipes at O-12mtr elevation by cutting the required size of MS patch plate, preparing the welding surface and patch welding on the punctured portion, including hire charges for T&P and cost of consumables scaffolding etc., (M.S. Scarp plate will by supplied by TANGEDCO)

Charges for providing clamps on the punctured pipe portion for arresting water leakages at 0-12mtr elevation including hire charges for T&P and scaffolding and cost of consumables etc.,

Charges for fabrication of 1 set of (2halves) pipe clamp by cutting the pipe piece to the required size, welding with MS angles, drilling holes including cost of cutting gas, welding electrodes and hire charges for T&P etc. (M.S. Scarp pipe will by supplied by TANGEDCO) For 1set of (2halves) 300/200NB MS pipe clamp

Charges for fabrication of 1 set of (2halves) pipe clamp by cutting the pipe piece to the required size, welding with MS angles, drilling holes including cost of cutting gas, welding electrodes and hire charges for T&P etc. (M.S. Scarp pipe will by supplied by TANGEDCO) For 1set of (2halves) 150/100NB MS pipe clamp

Replacement of 300NB service water line Charges for Dismantling of existing 300 NB pipes, loading and unloading the same to stores/ field yard as per the instruction of the Engineer in charge.

Replacement of 300NB service water line Charges for Erection, laying and welding of 300 NB M.Spipe line cost of consumables and hire charges for T & P’s etc.,

Replacement of 300NB service water line Charges for welding of 300 NB pipe joints as per requirement of site condition.

Replacement of 300NB service water line Charges for fabrication/machining of 300 NB MS flanges by gas cutting the flange in available second hand MS plate, drilling, surface fininshing etc., including cost of consumables and hire charges for T&P etc.,

Replacement of 200NB service water line Charges for loading and unloading of new E.R.W 200NB M.S pipe from stores to work spot.

Replacement of 200NB service water line Charges for dismantling of existing damaged 200NB M.S pipes loading and unloading the same to store as per the instruction of engineer in charge.

Replacement of 200NB service water line Charges for erection of new M.S. E.R.W 200NB pipe laying, aligning over rack by cutting & welding with suitable supports and related work.

Replacement of 150NB service water line Charges for cutting & dismantling the wornout portion of 150 NB M.S service water pipe line from OHT-II to Power house 200NB Header line to 150NB isolation valve at above 6mtr elevation near unit V south side wall including, leading, lowering and devolution from workspot to central stores.

Replacement of 150NB service water line Charges for Lifting the 150 NB M.S (S/H) service water pipe line from OHT-II to Power house 200NB Header line to 150NB isolation valve at above 6mtr elevation near unit V south side wall, including, laying, alignments erection and welding the 150 NB (S/H) pipe line with existing line.

Platform charges Charges for fabrication of 1No working platform to facilitate to carryout dismantling & erection work etc., in 5mtr elevation and dismantling after completion of work.

Overhauling of 100NB gate valves Charges for overhauling the 100NB gate valve by dismantling the valve bonnet and parts like shaft, bush, disc, gland etc, through cleaning and inspection of parts, changing the wornout parts /minor repair works if any, reassembling the valve parts, gland rope changing, wornout fasteners changing if necessary, Open / Close operation checking, commissioning, leak checking and painting etc., of in GLR-III including all consumables and T&P charges