NCTPS I SE MI circle AMC 24 25 BM Dn Unit I II III Attending boiler tube puncture and breakdown works

Amount

Identification, rectification of tube puncture up to 10 Joints including Arc filling by spool piece, edge preparation and welding by IBR welder and assisting for hydraulic test. (Spl. Welding electrode/Filler wire will be provided by TANGEDCO). Charges inclusive of consumables and hire charges of T&P's.

Renewal of punctured boiler tubes (each tube have two joints) of size above 44.5mm OD inclusive of transportation, cutting of defective tubes, edge/spool preparation, welding with IBR welder. Charges including consumable and hire charges for T&P's. (Spl. Welding electrode/Filler wire will be provided by TANGEDCO).

Charges for renewal of defective/puncture boiler tubes (each tube have two joints) of size 44.5mm OD inclusive of transportation, cutting of defective tubes, edge/spool preparation, welding with IBR welder. Including consumable and hire charges for T&P's.

Tube rectification by window cutting: Tube rectification by window cutting and welding: Marking of defective tubes identified, cutting of defective portion of tubes, edge preparation, welding of new spool piece with IBR welder. Window cutting on the tube, edge preparation, welding of new piece with IBR Welder. Charges including consumable and hire charges for T&P's. (Spl. Welding electrode/Filler wire will be provided by TANGEDCO).

Strengthening of eroded existing joints: This work involves identification of less eroded existing joints, Grinding metal filling by welding with IBR welder. Charges including consumable and hire charges for T&P's.

Erosion Filling: Charges IBR Welder for Arc filling of area 25 x 150 mm2 by 3 layer. Charges including consumable and hire charges for T&P's.

Charges for fin welding: Charges for fin welding by cleaning, surface preparation and welding. Including consumable and hire charges for T&P's.

Skin casing welding and patch up work in Boiler area: This work involves removing refractory, cutting the damaged existing skin casing sheet where ever required, Welding with new skin casing sheet. Charges including consumable and hire charges for T&P's. (MS/Skin casing sheet will be provided by TANGEDCO).

Patch up Refractory: Chipping removal of defective refractory, cleaning, surface preparation, patch work new refractory in various elevation of Boiler. Charges including transporting the refractory from stores and unloading at site, leading, lifting and removing the waste refractory from Boiler lowering to the ground flower, loading to tipper and disposing at waste disposal area, consumable and hire charges for T&P's. (Castable refractory will be provided by TANGEDCO).

Renewal for safety valve flange gasket: This work involves dismantling safety valve flange, cutting gasket for required size, renewal of gasket and assembling of safety valve properly. (Gasket will be supplied by the TANGEDCO) Charges inclusive of cost of consumables and hire charges for T&Ps.

Charges for cutting and replacing the defective valve of size up to 25 mm Rate for 3 valves (For valves of size up to 25 mm). Charges inclusive of cost of consumables and hire charges for T&Ps.

Cutting and replacing the defective valves for valves of size 40 mm to 50 mm. Charges inclusive of cost of consumables and hire charges for T&Ps.

Cutting, edge preparation and welding of 1” pipe line, tee elbows, bends in Boiler pressure parts by IBR welder etc. at joints. Charges inclusive of cost of consumables and hire charges for T&Ps.

Dismantling of steel structural in Boilers. Charges inclusive of cost of consumables and hire charges for T&Ps.(above 9 meter)

Ash choke cleaning work in the air vent tray: Charges for cutting the choked boiler vent drain pipeline, in the bend portion to remove the ash choke from 52 mtr to ‘0’ mtr level of boiler and including cutting & re welding the pipe line after removing of ash choke. Including consumable and hire charges for T&P's.

Removal of accumulated ash in penthouse, roof, ceiling girder and rear arch enclosure. Removal of accumulated ash in boiler pent house, I & II pass boiler roof, ceiling girders, drum enclosure area between I Pass & II pass. Charges including consumable and hire charges for T&P's.

Charges for Leading, lifting and arranging platform and scaffolding wherever required in the boiler and dismantling after completion of work. Including consumable and hire charges for T&P's.

Inspection of critical steam pipe line hanger supports assemblies. Providing necessary scaffolding, checking the hangers hot and cold setting readings and adjustments, minor rectifications if any. Charges including consumable and hire charges for T&P's.

Charges for bending of various size of boiler tubes, inclusive of consumables and hire charges of T&P’s.

SAHIRA ENTERPRISES