Tender For bid to ras providing of custom bid for services - custom bid for services - hrm assisting in preventive maintenance-1.0 assisting in preventive maintenance in hrm mechanical , the following works are to be carried out through-out the contract period , 2) preventive maintenance jobs based on daily monitoring basis: , a) daily monitoring of all hydraulic pipelines and attending the leakage (fitting changing, damaged , "o" ring changing, pipeline crack welding, etc.). , b) dally monitoring of sm top housing servo valve stand to identify moog & servo valve block , seating 'o' ring damage to avoid oil leakage. , c) daily monitoring of sm equipment like side guide, pinch roll hydraulic cylinder, feed/table roll , rotation, non-rotating rolls for jamming / bearing damage, air leakage identification and arresting. d). daily monitoring of internal cooling valve system condition, removal of steam locking in pipeline , and damaged hose (water) changing. , 2) assisting in mill equipment downtime / delays: , during equipment downtime/delays in hrm mechanical area, proposed man power shall be utilized to restore the mill at the earliest possible time. they will also be utilized for carry out observation / inspection points noted during rolling time to ensure equipment availability. , 3) area jobs (re-heating furnace, roughing mill, steckel mill, down coiler) a) re-heating furnace jobs , 1) rhf charging/discharging gear box connecting drive shaft flange bolts checking/changing. 2) rhf charging/discharging door chain guide roll greasing & chain greasing. , 3) rhf charging/discharging arm gearbox oil level checking & coupling bolts checking. , 4) rhf charging/discharging arm liner bolts tightness checking & replacement. , 5) rhf zone valves (gas & air) servicing & greasing. , 6) any other jobs assigned by qa/ea. , b) roughing mill jobs , 1) rm approach roller table rolls, front and rear mill table rolls, gear coupling welding. , 2) rm edger lower & upper fixed beam fixations changing. , 3) rm edger upper and lower fixed beam worn out portions build up by welding & grinding. , 4) rm main drive spindle balancing guide block fixation checking. , 5) rm main screw down screw clutch spring tension adjusting, cleaning & lubrication. , 6) rm uj joint cover bolts & flange bolts checking & changing. , 7) rm work roll cooling nozzle flushing and changing. , 8) rm work roll wiper pad changing. , 9) cobble pusher arms alignment., 10) cobble pusher extended platform repair work like uprooted support beam, web welding in case of , break down along plate pushing. , 11) crop shear gap/overlap adjusting locks servicing. , 12) crop shear side guide line plate groove welding. , 13) crop shear side guide repositioning during t bar hitting. , 14) any other jobs assigned by oa/ea , c) steckel mill jobs , 1) sm dust removal apron position / welding , 2) sm entry & exit retractable roller table roll cooling pipe checking, damaged pipe changing, both , side vertical apron groove welding, coupling welding. , 3) sm entry/exit side guide cross spray damaged nozzle changing and damaged/uprooted nozzle , block changing/welding. , 4) sm entry/exit cross spray diaphragm valve servicing/changing. , 5) sm entry/exit deflector rolls bearing housing fixation tightening and shim addition. , 6) sm entry/exit flap and bottom plate assembly fixation tightening and elongated bolts changing. 7) sm guide synchronizing shaft fixations checking / changing. , 8) sm main drive shaft cooper bearing fixation tie rod fixation, gulding block bolts tightening , 9) sm pinch roll de-scaler roll to hydraulic cylinder lock checking and welding/changing. , 10) sm pinch roll split apron repositioning & base stool welding. , 11) sm roll cooling flushing by removing all nozzles from zone i & ii & fixing back. , 12) sm wobbler liner plate bolts, wobbler to uj bolts tightening and uj to drive spindle flange bolts , tightening.. , 13) sm work roll
Tender For corrigendum : supply installation and commissioning of lab. equipment for mechanical engg dept - separating & throttling calorimeter with mini boilerfeatures: determining the vapour content usingo a separating calorimeter with cyclone water separatoro a throttling calorimeter with vapour depressurization using an h-s diagramspecifications:supplied vapour temperature: 240 c pressure: 10barsafety valve: 10barmeasuring ranges temperature: 0 400 c pressure (inlet): 0 16bar pressure (outlet): -150 100mbar230v, 50hz, 1 phase230v, 60hz, 1 phase120v, 60hz, 1 phasedimensions and weight: l x w x h: 800x 800 x 1700 mm weight (approx.): 110 kg, steam turbine power plant setupfeatures steam power plant and its components start-up, operation and shut down of a steam power plant closed steam-water circuit with feed water treatment among others, determining:o boiler efficiencyo mechanical/thermal efficiency of the turbineo condenser efficiencyo specific fuel consumption of the plantspecificationsteam generator steam output: 200kg/h at 11bar fuel consumption: 12l/h heat-up time: 8min pressure: 13barsuper heater power: 7kwsingle-stage axial turbine with curtis wheel and hydraulic speed regulator power: max. 1,5kw at 3000min-1water-cooled condenser cooling capacity: 98kw transfer surface: 2,5m2measuring ranges temperature: 9x 0 400 c, 2x 0 100 c flow rate: 0 167l/min (cooling water) pressure: 3x 0 16bar, 1x 1bar torque: 0 20nm speed: 0 4000min-1400v, 50hz, 3 phases400v, 60hz, 3 phases, 230v, 60hz, 3 phasesdimensions and weight l x w x h: 3500x 2500 x 2250 mmweight (approx.): 2250 kg, rotary air compressor test benchfeatures: to study all components/accessories used in rotary air compressor. to study & determine isentropic work, actual work volumetric efficiency, isentropic efficiency & free air delivery at different delivery pressure. to plot volumetric efficiency/isentropic efficiency against delivery pressure & comment on the nature of the plot.observations can be taken by air compressed in storage& free condition. instrumentation: sensors with digital displays software for data acquisition via usbspecifications: vane compressor rotary compressor, driven by 3 hp motor. calibrated orifice meter with water manometer to measure air intake. energy meter to measure input of the meter. pressure gauge to measure discharge pressure. control valve at delivery side. stop clock.dimensions and weight: l x w x h: 1500x 1500 x 1250 mmweight (approx.): 320kg, marcet boiler test apparatusfeatures: recording the vapour pressure curve of water presentation of the relationship between pressure and temperature in a closed system temperature and pressure measurementspecification:bourdon tube pressure gauge: -1 24bartemperature limiter: 200 csafety valve: 20barheater: 2kwboiler, stainless steel: 2lmeasuring ranges temperature: 0 200 c pressure: 0 20bar230v, 50hz, 1 phase230v, 60hz, 1 phase120v, 60hz, 1 phasedimensions and weight: l x w x h: 800x 600 x 600 mmweight (approx.): 45 kg, rope brake dynamometerpower 0.5 kwvoltage 220 vphase single phasefrequency 50 hzmaterial stainless steelwheel size 45 cm, cam analysis apparatus capacity 7. 5 hpphase 3 phasespeed 1500 rpmfrequency 50 hzmaterial stainless steel 304color blue, slip gauge set steel sets with high wear resistance.47 & nabl calibrationslip gauge set steel sets with high wear resistance. high level accuracy and reliability of measuring results are guaranteed by precise calibration. provided with nabl traceability if required. sets of m46, m87, m112. metric/imperial., bevel protectorblade length 150mm w/60, 40degree edges, required stand and type, sine bar range 200mm for checking concentricity, run out of sharpness taken & degree checking, digital outside micrometerspecification range 0-25mm, digital vernier caliperspecification range 0-150mm/6 , radius gaugeradius gauge 1-7mm, surface plate granite a grade 24 x 36 inch in a class granite, mechanical comparator analog type with dia
Tender For corrigendum : supply of ohe modification at twd siding mihk hazira - ohe layout plan , foundation , gi steel structure , contact wire hdgcc 107 sqmm , cadmium copper briddle wire , briddle wire , 5 mm dropper wire , briddle wire clamps 1070 , contacat and catenary , single anddouble conductor , structure bond , single bracket cantilever , regulating equipment re assembly , retro-reflective number , g jumpers with fitting , adjustment of cantilever , adjustment of x and y value , checking and re adjustment of ohe , adjustment of turnouts , ohe for electric loco movement , extra charges power block , eig documents , tower wagon charges per day , dismantling of a section insulator assembly , dismantling of regulating equipment , dismantling of contact wire with briddle wire associated fittings , dismantling of bracket complete assembly due to modification. , dismantling of termination assembly , dismantling of guy rod , dismantling of ohe mast dwarf mast and structure by cutting due to modification , dismantling of a section insulator assembly in power block , dismantling of re in power block , dismantling of contact wire with briddle wire and associated fittings in power block , dismantling of bracket complete assembly due to modification in power block. , dismantling of termination assembly in power block , dismantling of guy rod in power block , dismantling of ohe mast and structure by cutting due to modification in power block
Tender For custom bid for services - repair and maintenance of ac modules dc modules and various pcbs of all departmental drilling rigs of ongc tripura asset-work includes but not limited to supply of men, materials, testing equipment / tools etc for fault finding (trouble shooting), repairing, calibration and functional testing of ac modules, dc modules and various pcbs in e1400 series drilling rigs of tripura asset. broad details of the activities to be carried out are as below: a. following jobs are to be carried out in pcbs i. physical checking of healthiness of components & cleaning of the pcbs. ii. checking of voltages at different points in the pcbs after powered up through simulator. iii. replacement of faulty components, limited to 50% cost of the pcb, to make it operational. iv. calibration of pcbs v. on load testing of 12 hrs. continuous loading for satisfactory operational vi. fixing of pcbs in the respective panels b. following jobs are to be carried out in ac module i. visual inspection of module for any loose hardware & cleaning of the module. ii. checking of circuit by using simulator. iii. checking of over frequency tripping. iv. checking of under frequency level. v. under frequency voltage cut back test vi. idle-run ramp and idle trip test vii. throttle regulation check viii. master slave and command circuits check ix. current demodulator check x. automatic voltage regulator check xi. meter circuit check xii. over voltage trip check xiii. reverse power trip check xiv. frequency demodulator check xv. module panel meter check xvi. replacement of faulty components, limited to 50% cost of the ac module, to make it operational. xvii. on load testing of 12 hrs. continuous loading for satisfactory operational xviii. fixing of ac modules in the generator panel c. following jobs are to be carried out in dc-module i. visual inspection of module for any loose hardware & cleaning of the module. ii. dead band and current limit calibrations iii. zero throttle interlock circuit test iv. firing circuit test v. speed feedback circuit test vi. power limit circuit test vii. slave circuit test viii. manual voltage circuit test ix. over current trip calibration test x. meter circuit check xi. replacement of faulty components, limited to 50% cost of the dc module, to make it operational. xii. on load testing of 12 hrs. continuous loading for satisfactory operational xiii. fixing of dc modules in the dcpcr panel d. following jobs are to be carried out in battery charger i. visual inspection and cleaning of components such as transformer, voltmeter, ammeter, pcbs, rectifier, indication lamps and tightening of loose hardware, if any. ii. checking of tripping logics, dc under voltage, dc over voltage, reverse polarity, ac mains fail, over current, over temperature etc. iii. replacement of faulty components, limited to 50% cost of the battery charger, to make it operational.-msme exemption - no | startup exemption - no