SPECIAL REPAIR TO NAL VILLAGE PUMP HOUSE OF MES UNDER GE AF NAL

Excavation in trenches in soft / loose soil not exceeding 1.5 metre wide for foundation etc or for shafts, wells cesspits, manholes etc not exceeding 10 Sqm on plan and not exceeding 1.5 metre in depth and getting out, complete all as specified and as directed .

Returning, filling in, including spreading levelling, watering and well ramming in layers not exceeding 25 cm, complete all as specified and as directed .

Removing excavated material not exceeding 50 metre and deposited where directed at a level not exceeding 50 metre above the starting point in soil, complete all as specified and as directed .

Taking down U/S 150mm/100 bore DI/CI/cement water mains and connections/fittings of any type from trenches/ walls / floors (of any location) for replacement in old / new location/diversion by burning out/removing of lead joint/tyton joint/rubber gasket joint, complete all as specified and as directed . (Note: Necessary earthwork, will be measured and paid separately under relevant items)

Taking down U/S 80mm bore DI/CI/cement water mains and connections/fittings of any type from trenches/ walls / floors (of any location) for replacement in old / new location/diversion by burning out/removing of lead joint/tyton joint/rubber gasket joint complete all as specified and as directed . (Note: Necessary earthwork, will be measured and paid separately under relevant items)

Supply and fix in repair cast iron Sluice Valve 150mm , heavy duty class -1 ISI marked conforming to IS 14846,long body type, pressure type PN 1.6,flanged end and driled having stainless steel spindle with iron head wheel at the top complete with including nuts ,bolt,washer,rubber gasket and jointing complete all as specified and directed .

Supply and fix in repair cast iron Sluice Valve 100mm , heavy duty class -1 ISI marked conforming to IS 14846,long body type, pressure type PN 1.6,flanged end and driled having stainless steel spindle with iron head wheel at the top complete with including nuts ,bolt,washer,rubber gasket and jointing complete all as specified and directed .

S & F in replacement of cast iron non return valve 100 mm dia both side flanged (ISI Marked) confirming to IS 5312 (Pt-I) including nut & bolts complete all as specified and directed

Supply and fix in repair foot valve conforming to IS 4038 100mm (4") dia complete all as specifeied and directed,

Supply, installation, testing and commissioning monoblock type pumping set 15 HP,36M head including star delta starter with connecting flate copper cable 3 core 10 sqmm and PCC foundation,MS channels and anti vibrate pads shall be as per Manufacturer's recommendation. Note (a) The rate shall be inclusive of dismantling the existing any type foundation.(b) old unsv motor shall be deposited into MES Yard

Earthing complete with galvanised steel earth electrode 60 cm X 60 cm X 6 mm burried directly in ground vertically to depth not less than 2.25 m below normal ground level with top edge of the earth plate at a depth not less than 1.5m below ground level connected to and including GI strip of size 32 X 6 mm by means of nut, bolt, check nut and washer of galvanized iron or steel ,protected by GI pipe light grade 40mm bore all as shown on electrical plate No 3 of SSR Part -1 2009 connected to earth test point electrode , PCC pit with RCC cover ,funnel with wire mesh ,watering pipe 20mm dia protection pipe etc and testing on completion complete all as specified and directed. .Note No 1:- The unit rate shall also include for earth work in hard /dense soil,PCC (1:3:6) type C1 chamber ,RCC 1:2:4 type B-1 cover 50mm thick reinforced with watering pipe 20mm dia medium grade ,GI protection pipe light grade 40mm dia and wire mess & testing complete. Note No-2 :- Earthing strip and GI protection pipe beyond 7.5 m will be measured and paid separately if required.

Supply, laying and testing cable XLPE insulated ,screened,PVC bedded ,galvanized steel strip or wire armoured ,electric power cable (heavy duty) 1100 volts grade with stranded aluminium conductor of size 70 sqmm 3.5 core, complete all as specified and directed.

M&L for construction of brick masonary valve pit chamber of size 900mm x 900mm x 900mm (internal dimension) including necessary excavation and earthwork, PCC in foundation, brick work,12 mm thick rendering in cement mortar 1:4 on internal surface of valve pit and mild steel sheet cover 3mm thick and mild steel angle iorn frame size 40 x 40 x 5 mm around of valve pit, locking arrangement with pad lock of size 50 mm brass, 6 levers and key (Make : Godrej) complete including two coat of synthetic enamel over a coat red oxide primer on steel surface with preparation of surface and including dismantling of existing valve pit complete all as specified & directed.

M &L for Yield test of the bore well by continuously pumping for 16 hours to determine safe pumping yield, complete all as specified & directed.

M&L for development of tube well/open well with compressed air and after with 25% extra capacity pump by pumping muddy water complete all as specified & directed.

Supply and fix submersible copper cable of size 10 sqmm 3 core complete all as specified and directed.

Supply and fix Cast Iron Air Valves with single air Outlets, conforming to IS 14845 of size 100 mm dia bore and fixing up in DI/Cast Iron Water supply mains of size 100/150 mm dia complete all as specified and directed.

Supply only borewell column pipe 80mm dia heavy duty class A pipe with collars, complete all as specified and as directed.

M & L for dismantling of motor of 20 HP capacities pumpset from installed position after disconnecting the coupling and electric connections and transporting the motor to the work shop, strip opening of the motor complete incl dismanlting stator, rotor assembly and cleaning the complete assemblies by taking out perished glass sleeve of connecting leads from common termination to terminal block,and washing with carbon tetra chloride, decarbonising and cleaning the rotor with CTC solution.Replacing the glass sleeve of connecting leads from common termination to terminal block, binding the loose coils with binding cloth, varnishing the coils complete and applyng bectol on the excitor coils, stator coils and heating complete, reassembling the unit and testing with megger for insulation value and re-assembling, aligning with pump, re-inserting shims where necessary, refixing with coupling, tightening with torque wrench to required level, complet painting of motor /pump re-connecting the electric cable etc and check for drawing current testing, commissioning etc all as directed by Engineer-in-Charge. Note: The rate shall be inclusive of rewinding and painting of motor

M & L for dismantling the pump of 15 to 20 HP capacity, checking the worn out parts like impeller, shaft, stuffing box, shaft sleeve using Micrometer and transporting to workshop for repairs, check for condition of bearings, removing scales from impeller and pump housing, building the worn out metal of transmission shaft to required level, machining to the required size on lathe machine, grinding and finishing to match the sleeve, and fixing into the housing, re-assembling, transport back to the installation, installing in position, check for alignment with dial gauge, inserting shims where necessary, refixing with coupling, tightening with torque wrench to required level, re-connecting the flanged pipe connections of suction/ delivery including replacement of rubber insertion, complete painting of motor /pump etc complete all as specified and directed. Note The rate shallbe inclusive of impeller, shaft, stuffing box, shaft sleeve and painting

Supply only following items incorporating for repair work of pumpset of capacity 15 to 20 HP :-

Shaft bushes with check nuts (stainless steel) for above pumpset.

Ball bearings suitable for above pump. Make : NBC / SKF.

Metal Coupling for above pumpset.

Gland packing end cover (Stainless steel of suitable grade) as per existing size

Star rubber Coupling for above pumpset.

Supply and fix in replacement pressure gauge 0-50 kg/cm² ,4" dia internal glycerine filled including stop cock etc complete with necessary fittings incl dismantling old one, complete all as specified and directed.

M&L for boring of holes under road pavement hard standing by trenchless boring without any damage to nearby electric cable water pipeline incl HDPE Pipe 200 mm dia suitable for 0.4 mpa working pressure and sealing the end of pipe complete all as specified and directed

S&F in replacement fully automatic star delta motor starter with SPP metal enclosure suitable for 20 HP submersible motor, complete all as specified and directed

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