REPAIR AND MAINTENANCE OF PUMPS, PANEL BOARDS AND REPAIR / REPLACEMENT OF CI/DI/GI PIPE LINES AND EXTERNAL DISTRIBUTION SYSTEM AND OTHER WORKS AT MIL STN KANCHRAPARA UNDER GE BARRACKPORE

Amount

Excavation in trenches in soft/loose soil not exceeding 1.5 mtr wide and not exceeding 1.5 meter in depth not exceeding 10 Sqm on plan and getting out complete all as specified .

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exceeding 25 cm of soft/loose soil complete all as specified and directed .

Removing excavated soil not exceeding 50 mtr ant depositing where directed at a level not exceeding 1.5 mtr above the starting point of soft/loose soil all as specified and directed

M&L for 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 including required watering and consolidation after laying and stretching the cable complete all as specified and directed.

M&L for disconnecting the centrifugal pump and motor of 2 to 5 HP capacities after disconnection of mechanical type coupling, suction/discharge pipe line and unbolting from foundation base plate loading/unloading the pump and motor to the vehicle and transportation to workshop for repair/replacement/rewinding with super enamelled copper conductor wires 22 gauge and including dismantle & re-assembling the pump setting the impeller & housing for smooth running, replacement of packing gaskets etc. after repair/replacement/maint transportation back from workshop to site, including re-assembling the same, recoupling the pump with motor on base frame, checking the alignment with motor, testing & commissioning on completion and checking upto the satisfaction of Engr-in-Charge.

M&L for dismantling and disconnecting of self priming non-clogging centrifugal pump coupled motor of capacity 5HP Induction type & loading/ unloading the pump and motor to the vehicle and transportation to workshop for repair/ replacement/.re-winding with super enamelled copper conductor wires 22 gauge, heat varnishing and drying stator and rotor including overhauling of motor and pump and including dismantle and re-assembling the pump setting the impeller alongwith for smooth running after repair/replacement/ maintainence and transportation back from workshop to site including re-assembling the same, re-coupling the pump with motor on base frame, checking line alignment with motor testing & commissioning on completion and checking upto the satisfaction of Engr-in-Charge. (Note : unserviceable spares parts of pump set (like ball bearing, pump shaft, rubber flap, flat gasket, shaft sleeve) shall be measured and paid separately as supply only).

Supply only following spare parts of centrifugal pump coupled motor of capacity 5HP (Make: Calama/ KSB/ CRI) against Item No. 6.00 :-

Ball bearing (DE) Part No. 260 or 261.

Rubber flap Part No. 4882.

Pump shaft Part No. 180.

Flat Gasket for shaft sleeve Part No. 515.

Shaft sleeve Part No. 261.

M&L for dismantling and disconnecting of self priming non-clogging centrifugal pump coupled motor of capacity 2HP Induction type & loading/ unloading the pump and motor to the vehicle and transportation to workshop for repair/ replacement/.re-winding with super enamelled copper conductor wires 22 gauge, heat varnishing and drying stator and rotor including overhauling of motor and pump and including dismantle and re-assembling the pump setting the impeller alongwith for smooth running after repair/replacement/ maintainence and transportation back from workshop to site including re-assembling the same, re-coupling the pump with motor on base frame, checking line alignment with motor testing & commissioning on completion and checking upto the satisfaction of Engr-in-Charge. (Note : unserviceable spares parts of pump set (like ball bearing, pump shaft, rubber flap, flat gasket, shaft sleeve) shall be measured and paid separately as supply only).

Supply only following spare parts of centrifugal pump coupled motor of capacity 2HP (Make: Calama/ KSB/ CRI) against Item No. 8.00 :-

Ball bearing (DE)

Rubber flap

Pump shaft

Flat gasket for shaft sleeve

Shaft sleeve

S&F for mild steel anchoring chain of 8 mm dia for holding pump in true/original position from cross bar near roof complete as in repair all as directed.

M&L for servicing, overhauling of submersible sewage pump of capacity 2HP/ 5 HP after lifting from the sewage well, disconnecting column pipes and electric connection, transporting to workshop of pump for replacement of all defective worn out parts and accessories and lowering and re-install the sewage pump to its original position with necessary arrangement for testing and commissioning complete all as directed. (Note : unserviceable spares parts of pump set (like thrust bearing, stainless steel shaft, gun metal impeller, sand guard, gun metal bush, gun metal sludge guard, impller guard) shall be measured and paid separately as supply only).

Supply only the following spares for submersible pump of capacity 2 HP/5HP pump (Make: Calama/ KSB/ CRI) against Item No.11.00 :- -

Thrust bearing for 5 HP/ 2 HP pump.

Gunmetal impeller for 5 HP/ 2 HP pump.

Sand guard for 5 HP/ 2 HP pump.

Gunmetal bush for 5 HP/ 2 HP pump.

Stainless steel shaft for 5 HP/ 2 HP pump.

Gun metal sludge guard.

Impeller guard (as per existing) by metalling turning and balancing of impeller complete.

M&L for repair/ rewinding of electric motor of 5 HP (submersible motor) with supper enamelled copper winding wire of existing gauge, varnishing drying with electric furnace process after taking down burnt winding cleanining throughly of stator and rotor including replacement of bush, bearing etc testing & commissioning complete all as directed.

M&L for mild steel screw bolts (machined made) with hexagonal or square heads at one end and screwed the other, or screwed both ends each screwed end to be fitted with washers and one hexagonal or square nut but length of bolt exceeding 5 cm but not exceeding 10 cm long complete all as directed.

M&L for dismantling to non-cloging pump 20 HP capacity pump of type monoblock carrying out repair/maintenance work, replacement of unserviceable spare parts including necessary cutting, grinding, drilling, machine work for fixing bushing, Impeller, neck ring, shaft, sleeve & spare parts etc, re-assembling to same including re-fixing in position and testing complete all as specified and and as directed. (Note : unserviceable spares parts of pump set (like bearing, shaft sleeve, impeller, wear ring, inter stage ring, water deflector, bush, fan blade) shall be measured and paid separately as supply only).

M&L for dismantling to non-cloging Pump 5 HP Capacity pump of type monoblock carrying out Repair/Maintenance Work, replacement of Unserviceable Spare parts including necessary Cutting, grinding, drilling, machine work for fixing bushing, Impeller, neck ring, shaft, sleeve & spare parts etc and re-assembling to same including refixing in position and testing complete all as specified and directed. (Note : unserviceable spares parts of pump set (like bearing, shaft sleeve, impeller, wear ring, inter stage ring, water deflector, bush, fan blade) shall be measured and paid separately as supply only).

Supply only following spare parts suitable for 20HP/ 5 HP Capacity non- cloggging Pump as per existing size make & model against Item No. 15.00 & 16.00 :-

Cast Iron Impeller .

Bearing cover DE/NDE.

Ball bearing 6208 or 6209.

Ball bearing 6305.

Shaft sleeve DE/NDE.

Wear ring.

Inter stage ring.

Water deflector.

Gun metal bush.

Fan blade.

M&L for dismantling to defective 2 HP electric driven squirrel cage induction motor, 3-Phase, 415 Volt, 50Hz , strip opening & taking out old burnt winding wire from stator carefully, cleaning the stator slots carefully and Rewinding to stator with copper winding wire as per exiting gauge of wire including providing mica paper in stator slots, thimbles, vanishing to winding wire and assembling to motor after repair work including testing to motor at work shop/site complete all as specified and as directed.

M&L for dismantling to defective 5 HP Electric Driven Squirrel cage Induction Motor, 3-Phase, 415 Volt, 50Hz , strip opening & taking out old burnt winding wire from stator carefully, cleaning the stator slots carefully and Rewinding to stator with copper winding wire as per exiting gauge of wire including providing mica paper in stator slots, thimbles, vanishing to winding wire and assembling to motor after repair work including testing to motor at work shop/site complete all as specified and as directed.

M&L for dismantling to defective 20HP Electric Driven Squirrel cage Induction Motor, 3- Phase, 415 Volt, 50Hz, strip opening & taking out old burnt winding wire from stator carefully, cleaning the stator slots carefully and Rewinding to stator with copper winding wire as per exiting gauge of wire including providing mica paper in stator slots, thimbles, vanishing to winding wire and assembling to motor after repair work including testing to motor at work shop/site complete all as specified and as directed.

M&L for disconnecting & taking out to Submersible Pump & Motor of Capacity of 25 HP and lifting from bore hole of Pump Houses and Transporting to nearest Workshop for repairing and dismantling the submersible pump 25HP for repair & replace-ment of unserviceable spare-parts including necessary cutting, grinding, drilling, machine work for fixing of spares and re-assembling the Same and Tested in work shop and returning back after repairing and Re-instaltion & lowering in Original Position and Re-connection in water supply installation and Testing complete all as specified and as directed. (Note : unserviceable spares parts of pump set (like bearing, pump shaft, impeller, suction casing, discharge casing, stage casing, rotor assembly, suction stainer, diffuser, stage bowl, sand guard, stud nut & bolts), shall be measured and paid separately as supply only).

All as per item No 21.00 here-in-before but capacity 15HP complete.

Supply only following spare parts suitable for 25HP/ 15 HP Capacity Submersible Pump as per existing size, make & model and against Item No. 21.00 and 22.00 :-

Pump shaft suitable for submersible pump of any type, 6 to 8 stage, as approved.

Cast Iron Impeller suitable for submersible pump of any type, as approved.

Gun Metal Impeller suitable for submersible pump of any type, as approved.

Suction casing suitable for submersible pump of any type, as approved.

Discharge casing suitable for submersible pump of any type, as approved.

Stage casing suitable for submersible pump of any type, as approved.

Rotor assembly suitable for submersible pump of any type, as approved.

Carbon thrust bearing with pressure plate suitable for submersible pump any type, as approved.

Suction stainer suitable for submersible pump of any type, as approved.

Diffuser (Broanze) suitable for submersible pump of any type, as approved.

Stage bowl suitable for submersible pump of any type, as approved.

Sand guard suitable for submersible pump of any type, as approved.

Bearing segment carrier suitable for submersible pump any type, as approved.

Stud nut and bolt 8.0mm and length, as required, suitable for submersible pump any type, as approved.

All as per item No 21.00 here-in-before but 5/7.5HP complete.

Supply only following spare parts suitable for 5HP/ 7.5 HP Capacity Submersible Pump as per existing size, make & model against Item No.24.00 :-

Cast Iron Impeller suitable for submersible pump of any type, as approved.

Gun Metal Impeller suitable for submersible pump of any type, as approved.

Carbon thrust bearing with pressure plate suitable for submersible pump of any type, as approved.

Suction stainer suitable for submersible pump of any type, as approved.

Diffuser (Broanze) suitable for submersible pump of any type, as approved.

Stage Bowl suitable for submersible pump of any type, as approved.

Sand guard suitable for submersible pump of any type, as approved.

M&L for disconnecting and taking out the submersible pump and motor of capacity 15 HP to 25 HP and lifting from bore hole of motor and transporting to nearest work shop for repair and dismantling to existing unserviceable submersible motor of capacity 15HP to 25 HP, 3 phase, 440 volts, 50 Hz, 2900 RPM and rewinding to stator with PVC insulated copper winding wire including sleeves, thimbles & including minor spare parts like as bronze bushes , gland packing etc and re-assembling to the same motor after repair work and returning back for re-installation of lowering in original position and re-connection in water supply installation and testing etc complete all as specified and as directed.

All as per item No 26.00 here-in-before but 5/7.5 HP capacity submersible motor complete.

S&F for single phase preventor with accessories suitable for electric motor 7.5 to 25 HP capacity with necessary electrical connection by using proper size of single core copper conductor cable as in repair complete including taking down/ removing old unserviceable one with necessary electrical connection complete all as specified and directed. (Make : Minilec Cat No-VSP1 AST or equivalent model of L &T/Seimens as approved)

M&L for DOL starter in Sheet steel housing, 3- phase 415 Volt 50 Hz for Centrifugal pump of capacity 3 HP, 2.2 KW relay range - 6.3 to 10 Amps including birelay with single phase preventor complete all as specified and directed. (Make :- Siemens Cat No. 3TW72911A.72 or equivalent model of L&T as approved)

M&L for automatic Star - Delta starter in sheet steel housing, three phase 415 Volt 50 Hz for submercible pump of capacity 15 HP, 11 KW relay range - 10 to 16 Amps including birelay with single phase preventor complete all as specified and directed. (Make :- Siemens Cat No - 3TE72910A.77 or equivalent of L&T as approved)

M&L for automatic Star - Delta starter in Sheet steel housing, three phase 415 Volt 50 Hz for submercible pump of capacity 25 HP, 18.5 KW Relay range - 16 to 25 Amps including birelay with single phase preventor all as directed. (Make :- Siemens Cat No - 3TE72910A.79 or equivalent of L&T as approved)

S&F for PVC insulated, unsheathed copper conductor cable 6 Sq mm, 3 core, flat in shape suitable for submersible pump motor complete as in repair all as specified and directed.

Testing of water samples from state Govt or any NABL approved laboratory for chemical test before and after filteration complete all as specified and as directed.

Testing of water samples from state Govt or any NABL approved laboratory for bacteriological test before and after filteration complete all as specified and as directed.

S&F for 3/8" (inch) white suction / discharge tubing suitable for altoc dozing pump complete as in repair all as specified and directed. (Make:-AQUAFIT(VARIMA) / RMCO as approved)

S&F for weighted suction line stainer 3/8" (inch) suitable for Altoc Dozing pump complete as in repair all as specified and directed. (Make:-AQUAFIT(VARIMA) / RMCO as approved)

S&F for pump tube suitable for Altoc Dozing pump complete as in repair all as specified and directed. (Make:-AQUAFIT(VARIMA) / RMCO as approved)

S&F for injection check valve 3/8" (inch) suitable for Altoc Dozing pump complete as in repair all as specified and directed. (Make:-AQUAFIT(VARIMA) / RMCO as approved)

S&F for roller assembly Pack of 4 complete as in repair all as specified and directed. (Make:- AQUAFIT(VARIMA) / RMCO as approved)

S&F for connecting nut 3/8" (inch) complete as in repair all as specified and directed. (Make:-AQUAFIT(VARIMA) / RMCO as approved)

S&F for agitator motor 230 Volts, single phase, 50 HZ, 120 Watts Capacity, 0.4 Amps 920 RPM complete as in repair all as specified and directed. (Make:-AQUAFIT(VARIMA) / RMCO as approved).

S&F for foot valve assembly suitable for Dozing pump complete as in repair all as specified and directed. (Make:-AQUAFIT(VARIMA) / RMCO as approved)

S&F for stainer for Foot valve suitable for dozing pump complete as in repair all as specified and directed. (Make:-AQUAFIT(VARIMA) / RMCO as approved)

S&F for complete gear motor 230 Volt, 50 HZ suitable for dozing pump complete as in repair all as specified and directed. (Make:-AQUAFIT(VARIMA) / RMCO as approved)

S&F for single head FEED rate control with shaft suitable for dozing pump complete as in repair all as specified and directed. (Make:-AQUAFIT(VARIMA) / RMCO as approved)

Disconnecting electric connections and taking out submersible pump set of any capacity with column pipe of any length including cable for carring out development/repairing of bore well of any size and any length by applying pressure air compressor at 6 Kg per centimeter square and taking out deposited mud/unwanted particles through compressed water from inside the bore well as per required lenght for three days and removal of devolopment pipe after proper devoloping of bore well satisfactorly and lowering the same and connecting the electric cable after devolopment complete including testing for getting satisfactory discharge complete all as directed.

M&L for brick covering with width equal to length of brick as mechanical protection to cable with well burnt sub class ‘B’ bricks of size 250mm x 125mm x 75mm laid dry flat complete all as specified and directed .

M&L for XLPE insulated, LT armoured electric cable with aluminium stranded conductor 1100 volts grade, cross-sectional area 95 sqmm, 3.5 core laid in trenches/pipes/ducts/wall/borings with necessary cable lugs and glands, nuts, bolts and washers etc and testing complete after taking out old unserviceable cables from any position with serviceable bricks obtained from trenches complete all as specified and directed. (NOTE: Excavation/earth work, sand cushioning, cable cover/brick shall be measured and paid separately if required)

M&L for XLPE insulated, LT armoured electric cable with aluminium stranded conductor 1100 volts grade, cross-sectional area 35 sqmm, 3.5 core laid in trenches/pipes/ducts/wall/borings with necessary cable lugs and glands, nuts, bolts and washers etc and testing complete after taking out old unserviceable cables from any position with serviceable bricks obtained from trenches complete all as specified and directed. (NOTE: Excavation/earth work, sand cushioning, cable cover/brick shall be measured and paid separately if required)

M&L for XLPE insulated, LT armoured electric cable with aluminium stranded conductor 1100 volts grade, cross-sectional area 25sqmm, 3.5 core laid in trenches/pipes/ducts/wall/borings with necessary cable lugs and glands, nuts, bolts and washers etc and testing complete after taking out old unserviceable cables from any position with serviceable bricks obtained from trenches complete all as specified and directed. (NOTE: Excavation/earth wall, sand cushioning, cable cover/brick shall be measured and paid separately if required)

M&L for 40 mm bore galvanized iron tubing (light grade) including clamps, nut, bolt and washers, for cable protection, supporting to poles, plinth protections, road crossing, trenches, footpath etc, complete as in repair all as specified and directed.

M&L for 50 mm bore galvanized iron tubing (light grade) including clamps, nut, bolt and washers, for cable protection, supporting to poles, plinth protections, road crossing, trenches, footpath etc, complete as in repair all as specified and directed.

S&F for MCCB, 250 Amps, 4 pole, 36 KA, 3 phase, 415 volts with thermal magnetic release complete as in repair all as specified and directed. (Make : L&T cat No - CM98403OOQOOG/Legrand cat No. 420249 as approved)

S&F for MCCB, 200 Amps, 4 pole, 36 KA, 415 volts with thermal magnetic release complete as in repair all as specified and directed. (Make : L&T cat No - CM92109OOP10G/Legrand cat No. 420248 as approved)

S&F for MCCB, 100 Amps, 4 pole, 25 KA, 415 volts with thermal magnetic release complete as in repair all as specified and directed. (Make - L&T Cat No. CM9171200K00G/Legrand cat No 420055 as approved)

S&F for MCCB, 63 Amps, 4 pole, 25 KA, 415 volts with thermal magnetic release complete as in repair all as specified and directed. (Make - L&T Cat No. CM9171200JOOG/Legrand cat No 420053 as approved)

S&F for OFF load change over switch 200 Amps, 4 pole, 415 Volts Side handle type complete as in repair all as specified and directed. (Make: L&T/Legrand/Siemens as approved)

S&F for OFF load change over switch 100 Amps, 4 pole, 415 Volts Side handle type complete as in repair all as specified and directed. (Make: L&T/Legrand/Siemens as approved)

S&F for integral LED aviation light comprising of aluminium housing with polycarbonate enclosure, consisting of 302 Nos. LED complete as in repair all as specified and directed. (Make : Bajaj, Cat. No.BGAV 302 LED RED or equivalent model of Phillips/Havells)

M&L for 1100 KV grade heavy duty cable PVC insulated aluminium stranded conductor served with inner sheathing of PVC tape and overall PVC sheathed in service connections suspended by insulating hanger not more than 1 mtr apart including 4 mm suspension wire one twin core cable flat or circular of size 10 Sq mm multi- stranded conductor complete all as specified and directed after taking down existing cable of any type and any size.

M&L for earthing complete with galvanized earth plate electrode size 600mm x 600mm x 6mm thick buried directly in ground earth pit not less than 2.25 mtr deep below ground level with top edge of earth plate not less than 1.5 mtr below normal ground level connected to galvanised earth lead strip of size 32 X 6 mm earth lead by means of nuts, bolts check nuts and washers of galvanised iron steel , protected by galvanised iron pipe 40 mm dia (Medium grade) all as directed including cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1½ :3) type A-1 cover slab of size 42 x 42 x 10 cm thick reinforced with 8 mm dia TMT bars @ 15 cm cement concrete both ways with 10 mm dia mild steel round bar of 30cm long, bent to shape as lifting handle, funnel, wire mesh, 20 mm bore galvanised iron pipe (medium grade) for watering, charcoal or coke and salt in alternate layers with necessary earth work in soft/loose soil complete all as shown electrical plate No 5 of SSR Part - I including testing on completion all as specified and directed after taking down old earthing. (Galvanised iron strip upto 7.5m including testing consider in this item).

M&L for 32 x 6 mm galvanized iron strip earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or fixed to poles or any other indicated situation for earthing complete as in repair all as specified and directed.

M&L for painting (by spray gun) to internal and external surface of LT Feeder Pillar Box/Panel Boards various sizes with two coats of synthetic enamel paint over a coat of red oxide metal primer making necessary surface preparation by scrapping the old pianted surfaces with wire brush/emery paper complete all as specified and directed.

S&F for CTs of ratio 200/5 A used on existing panel complete as in repair all as specified and directed.

S&F for CTs of ratio 100/5 A used on existing panel complete as in repair all as specified and directed.

S&F for CTs of ratio 50/5 A used on existing panel complete as in repair all as specified and directed.

Supply, laying and testing of ductile iron pipes (blue colour) of size 150mm bore with spigot and socket ends, push on rubber joint, centrifugally cast, class K-7, in any length, laid in trenches/ on surface/ over masonry pillar and connection to old or new position of including push on rubber (EPDM) ring complete including taking out old cast iron / ductile iron pipe of any type and class (including all fittings) all as specified and directed. (Note: (i) Rubber ring/gasket joint, jointing materials, etc required for jointing of DI pipes shall deemed to be included in unit rate.(ii) Excavation and earth work shall be measured and paid separately).

Supply, laying and testing of ductile iron pipes (blue colour) of size 100mm bore with spigot and socket ends, push on rubber joint, centrifugally cast, class K-7, in any length, laid in trenches/ on surface/ over masonry pillar and connection to old or new position of including push on rubber (EPDM) ring complete including taking out old cast iron / ductile iron pipe of any type and class (including all fittings) all as specified and directed. (Note: (i) Rubber ring/gasket joint, jointing materials, etc required for jointing of DI pipes shall deemed to be included in unit rate.(ii) Excavation and earth work shall be measured and paid separately).

Supply, laying and testing of ductile iron pipes (blue colour) of size 80mm bore with spigot and socket ends, push on rubber joint, centrifugally cast, class K-7, in any length, laid in trenches/ on surface/ over masonry pillar and connection to old or new position of including push on rubber (EPDM) ring complete including taking out old cast iron / ductile iron pipe of any type and class (including all fittings) all as specified and directed. (Note: (i) Rubber ring/gasket joint, jointing materials, etc required for jointing of DI pipes shall deemed to be included in unit rate.(ii) Excavation and earth work shall be measured and paid separately).

M&L for CI / DI spigot fittings for spigot and socket pipes such as bend, tees, tapes, tail piece etc of any size upto 150 mm bore complete all as specified and directed.

M&L for lead wool joint with all jointing materials such as lead, rope manila etc as required of site for repairing to leakage after removing of old lead from CI/DI pipe etc complete with tool & plant of following size of CI/DI pipe (Note : Excavation, returning filling and removing of earth work shall be measured and paid separately) :-

Bore of CI/DI Pipe 150/200mm

Bore of CI/DI Pipe 100mm

Bore of CI/DI Pipe 80mm

S&F for sluice valve, both end flanged with CI operating wheel, brass spindle etc as per latest IS specification, Class PN - 1.6 including necessary jointing and jointing materials such as gasket, nuts, bolts, washer etc complete after taking out old unserviceable sluice valve of following size:-

Sluice valve of 200mm dia

Sluice valve of 150mm dia

Sluice valve of 100mm dia

Sluice valve of 80mm dia

S&F non-return (Reflux) valve size 100mm with gun metal working parts, as per IS-5312, including jointing with rubber gasket, bolts, nuts, washer etc of following sizes complete as in repair all as specified and directed.

Non-return (reflux) valve of 150mm dia

Non-return (reflux) valve of 100mm dia

Non-return (reflux) valve of 80mm dia

S&F for 80mm dia GI tubings (medium grade) with all fittings laid in trenches after taking down old steel tubing and connection complete all as specified and as directed.

All as per Item No 76.00 here-in-before but 50mm dia complete all as specified and directed

All as per Item No 76.00 here-in-before but 40mm dia complete all as specified and directed

All as per Item No 76.00 here-in-before but 25mm dia complete all as specified and directed

All as per Item No 76.00 here-in-before but 20mm dia complete all as specified and directed

All as per Item No 76.00 here-in-before but 15mm dia complete all as specified and directed

S&F for gunmetal gate valves with iron wheel head, screwed both ends for iron pipes after taking down old unserviceable gate valve of following sizes:-

Gate Valve of 50mm dia

Gate Valve of 40mm dia

Gate Valve of 25mm dia

Gate Valve of 20mm dia

S&F for pressure gauge of range 0 to 100 Kg/Cm2 complete as in repair all as specified and directed.

Construction of valve pit chamber with brick masonary with sub class 'B' bricks (one brick thick) in cement mortar (1:6) and necessary PCC (75mm thick) type D2 (1:4:8) as in foundation and 15mm thick plastering on brick work in cement mortar (1:4) including necessary earthwork etc work having internal dimension 120cm x 120cm x 120cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with two coats black bituminous paint over a coat of anti corrosive red oxide primer complete after demolition of old valve pit chamber all as specified and directed.

Construction of valve pit chamber with brick masonary with sub class 'B' bricks (one brick thick) in cement mortar (1:6) and necessary PCC (75mm thick) type D2 (1:4:8) as in foundation and 15mm thick plastering on brick work in cement mortar (1:4) including necessary earthwork etc work having internal dimension 60cm x 60cm x 60cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with two coats black bituminous paint over a coat of anti corrosive red oxide primer complete after demolition of old valve pit chamber all as specified and directed.

Repairing and servicing of Air compressors by changing of compressor oil and repairing of motor and starter with replacement of defective parts. (NOTE: Spare parts shall be measured and paid seperately as 'Supply only'.)

Supply only the following spair parts for Air compressure against item No.86.00 as under:

V- Belt.

Air pressure gauge.

Ball bearing for electric motor.

Compressor oil.

Gun metal butterfly valve 15 mm bore.

Supply only chlorine test kit with colored ample complete with all testing fitment and OT solution in rexine finish box all as specified & directed.

Supply only OT solution for chlorine test (500 ml pack).

Dewatering of OH tank, removing all dirt and silt, scrapping out the layers of the silt adhered on the reservoir floor of size 10.5m X 10.5m ,washing those out by clean water and making the floor dry by sweeping and soaking with cotton waste complete all as directed.

M&L for putting the bituminous caulking compound suitable for drinking purpose on the cracks to fill those completely,even putting some more for re-enforcement and left those to become dry and necessery testing after solidification by loading water complete all as directed.

Collection of treated sewage water in specified sample bottle from sewage treatment plant and testing of BOD,C OD, TSS, pH, total coliform content, residual chlorine, etc from State Govt. or any NABL approved laboratory complete all as specified and directed.

S&F for ball valve high pressure of PTMT with epoxy coated aluminium rod & high density plastic ball screwed for iron pipe and fixed for following sizes complete as in repair all as specified and directed:-

20mm dia (minimum weight-210 gms)

25mm dia (minimum weight-455 gms)

40mm dia (minimum weight-690 gms)

S&F for MCB, SP, 40 Amps, 10KA, 'C' series 240 volts, ISI marked complete as in repair all as specified and as directed. (Make:Legrand/Hager/L&T as approved)

S&F for MCB, SP, 6 Amps to 32 Amps, 'C' series, 240 Volt, 10KA, 50 Hz, ISI marked complete as in repair all as specified and directed. (Make:Legrand/Hager/L&T as approved)

S&F for brass spindle of 250 mm dia sluice valve with nut & bolts, gland packing etc after taking down old unserviceable brass spindle complete all as specified and directed.

S&F for brass spindle of 150 mm dia sluice valve with nut & bolts, gland packing etc after taking down old unserviceable brass spindle complete all as specified and directed.

S&F for brass spindle of 100 mm dia sluice valve with nut & bolts, gland packing etc after taking down old unserviceable brass spindle complete all as specified and directed.

M/S KARTICK CHANDRA CHAKRABORTY

R.S. COMPANY

M/S. ARUP KUMAR DEY

MANOJ CONSTRUCTION

TAMALIKA ENTERPRISE

M/S D K Singha

RISING ENTERPRISE