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Tender For purchase of tig welding lab items - purchase of workshop pratic, mains supply- 230 15 % 1, 50/60 hz maximum input current,43 a1eff,21.5amma output range,20-200 a tig ouput range,10-200 a open circuit voltage,63 vduty cycle mma-200a/28 v @ 25%129a/25.2v @ 60%100 a /24 v @100%tig 200 a /18 v @ 25%129a/15.2v @ 60%100 a /14 v @100%protection class-ip23s weight,8.7kgdimensions, 403*153*264mmaccessories1.rogue et 200 ip delivered with power source with 3mmain cable and plug, shoulder strap,4m tigtorch and 3m return cable with clamp.argon cylinder 7 cubic meter,commercial grade -1 no,argon gas regulator isi make-1 no
Tender For bid to ras supply of electrical items c c - ml for flame proof point wiring with two single core frls h pvc insulated pvc unsheathed multi stranded copper conductor cable of size 1 point 5 sqmm 1100v , supply install testing of flame proof metallic body exhaust fan single phase 230v 50hz 300mm 1440 rpm with louvers and shutter including civil work , ml switch flame proof rotory type with termination box in lm 6 16 a single phase 250v complete all as specified and directed by engr in charge , supply and fixing db spn 4 way db including all fixing accessories complete all as specified and directed by engr in charge , supply and fixing mcb sp 6 to 32 amps 240v rupturing capacity 10 ka c series complete all as specified , supply and fixing mcb db 20 amps 240v breking capacity 10 ka complete all as specified , ml for earthing complete with galvanized steel earth plate electrode 60cmx60cmx6mm thick surrounded with charcoal and salt buried directly in ground , ml for submain wiring with 2 single core pvc insulated unsheathed multi stranded copper conductor frls wire 4 sqmm 1100v grade incl one 4 sq mm pvc insulated , supply lay jointing testing xlpe insulated lt under ground cable 1100v grade heavy duty armoured with multi stranded aluminium conductor laid in trenches ducts , excavation in trenches n exc 1 point 5m wide and n exc 1 point 5m in depth for foundation etc or for shafts wells cesspits manholes pier holes laying of cables etc , ml for tibba sand cushioning to under ground cable in trenches existing cable trenches ducts in layers of 8 cm deep before laying the cable and 15 cm deep after laying , ml for 40 to 50 mm thick rough dressed jodhpur type stone slab 25 to 35 cm in width of 80 cm long laid dry abutting each other for protection to under ground cable , ml for removing excavated material to a distance n exc 50m and depositing where directed at a level n exc 1 point 5m above the ) /bid number : gem/2025/b/6562017 * /dated: 20-08-2025 & & / bid document 1 / 20 & & ' ' /item category starting point complete , ml for returning, filling in including spreading leveling watering and well ramming in layers not exc 25 cm complete all as specified and as directed , ml for gi tubes in replacement of 32mm bore size light grade galvanised including fittings with clamp of 25x3 flat iron welded to pipe fixed to wall , supply install testing or commissioning of inverter tech split wall mounted ac indoor outdoor unit with cordless remote control cap 1 point 5 tr make lg blue star hitachi voltas lyod , supply fixing heavy duty copper pipe 12mm 1 oblique 2 inch dia bore thickness 0 point 70 mm complete incl brazing welding nuts bolts and screws , supply fixing heavy duty copper pipe 6mm 1 oblique 4 inch dia bore thickness 0 point 70 mm complete inclu brazing welding nuts bolts and screws , supply and fixing new nityrile rubber insulation for copper pipes suitable for split ac of capacity from 1 point 5 to 2 tr complete all as directed by engg in charge , supply fixing in replacement wall mounted digital voltage stabilizer for automatic operation single phase naturally air cooled indoor type designed for input variation between 150 to 285v , sf sheet metal enclosure 2 pin earth plug socket complete with one single pole mcb of 20 amp capacity complete all as specified and directed by engr in charge , sf wiring from indoor to outdoor unit size 2 point 50sqmm pvc insulated multistranded frls 4 core round cable incl fixing of thimbles for split type air conditioner 1 point 5 to 2 tr , m l for surface sub main wiring with two runs of 4sqmm single core pvc insulated unsheathed multistranded with copper conductor cable 1100v frls h grade isi marked , supply fixing new pvc drain pipe 15 mm dia with coupler joint for split or window ac complete all as specified as directed , supply fixing in replacement outdoor unit odu stand for 1 point 5 or 2 tr type split ac complete all as specified as directed
Tender For the scope of work covers perform visual and dimensional inspections of runner, buckets, splitters, and needle impact zones. map and quantify erosion depth, especially on bucket edges, splitter, and cutout. the defects /cracks noticed during dpt (die penetrate test) and ultrasonic test (ut) will be provided and following observations have been noticed. erosions, material wear out and porosity noticed at leading edges, splitter tips, and bucket surfaces. cavitations damages, pitting, surface degradation has been observed in all runner buckets around the splitter leading to material loss at the splitter. cracks have been observed at back of the several runner buckets around splitter and its tips areas. due to cumulative wear, pitting and erosions surface roughness observed. compare worn surfaces to ideal profiles, calculate material to rebuild. material of construction (moc) details of pelton runner to be carried out at certified material testing laboratory or at cmti, bangalore. welding electrode suitable for moc of pelton runner shall be selected. the compatibility certificate for selection of welding electrode from welding electrode manufacturer shall be furnished. material build-up via welding includes deposit weld material to rebuild worn bucket edges, cutouts, and splitters. pre-clean the surface thoroughly to remove contaminants and moisture. preheat the component to specified temperature, and weld with controlled parameters to minimize residual stress and avoid cracking. maintain uniform temperature during welding to prevent residual stress formation and porosity. use filler materials compatible with the base metal as per the moc of pelton runner for enhanced fatigue and erosion resilience. use thermocouples to ensure uniform heating and cooling within limits to avoid unwanted microstructural changes. machining, grinding & polishing after welding, perform milling, grinding and polishing to restore hydrodynamic shape and surface finish for optimal flow and efficiency. after rectifications works, the firm shall conduct pelton runner dpt & ut testing and submit report. the work shall be carried out diligently and as per site requirement. in the event of any dispute, the decision of the engineer in charge of the work shall be final and binding. detailed technical specifications and scope of work/supplies are furnished in section-iii of bid document attached in the e-portal.
Tender For corrigendum : supply of manual metal annual rate contract welding electrode, class-m1, type of coating-heavy, to drawing/specification irs: m-28/2020, code as per is: 5206/2013, size: 4 x 350 mm.