KMC/WS/GJKBPS/25-26/10

2A)SUPPLY AND DELIVERY OFHEAVY DUTY WORM GEARBOX (WITHOUT HANDWHEEL) SUITABLE BUTTERFLY VALVE .SPECIFICATION OF GEARBOX:MODEL AT - 250/2/S2E,GEAR RATIO (MINIMUM)456:1,RATED OUTPUT TORQUE 22500 NM (199141.78LBF-IN).GEARBOX MOUNTING F25/F30,KEY SLOT LOCATION AT CLOSE/OPEN 12 O' CLOCK /3 O" CLOCK. MATERIAL OF CONSTRUCTION,A)HOUSHING/COVER-CI IS 210 FG 200,GEAR -DI,SGI 500/7,WORM/PINION SHAFT-CS IS 45C8,WORM WHEEL-DI SGI 500/7 IS SUITABLE FOR SHAFT DIA UPTO 110MM.

REMOVING THE GEAR BOX FROM THE B/F VALVE USING NECESSARY ATTACHMENT, CHAIN PULLEY, PULLER TOOLS AND TACKLES ETC AS PER DIRECTION OF EIC.

FITTING FIXING THE GEAR BOX WITH THE EXISTING VALVE SHAFT MAINTAINING PROPER ALIGNMENT AND ADJUSTMENT OF THE SECTOR PINION, FITTING OF KEY, TIGHTENING THE MOUNTING BOLTS, ADJUSTMENT AND FIXING STOPPER BOLT ETC AND TO ENSURE FULL OPEN/CLOSE AT 90 DEGREE ROTATION.

SUPPLY AND FIXING OF GOOD QUALITY GASKET AFTER PROPER CLEANING THE SURFACE AS PER DIRECTION OF EIC.

CHAPTER - VIII SUPPLYING OF MATERIALS HIRE CHARGES OF MACHINERIES 8.26 Hire charges of moveable crane with fuel & manpower having load handling capacity upto 14MT with the 45 deg. moveable arrangement & the boom length of 40 feets for loading & unloading of various materials / accessories of water supply works. For minimum engagement of 8 hrs. In a day

MATERIALS AND LABOUR 1. Building (B) Labour Rates Per Diem : 17)Fitter Mechanic. Note: (I)The above rates of labour are exclusive of 10% contractors profit and 1% Labour welfare cess which would be admissible to the Contractors, but contractual percentage will not be applicable. (II) The workersemployed on high rise building or any structure over 30 ft in height and also workers engaged in Tunnel shall be paid 20% extra wages.

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