REPAIR MAINTENANCE OF EXTERNAL WATER SUPPLY ALONGWITH CONNECTED WORKS OF PUMPING AND DISTRIBUTION SYSTEM AT ZONE III AND IV AREA UNDER GE DINJAN

Amount

Demolition of reinforced cement concrete in ground floors and pavings n.exc 15 cm thickness (below or above ground level) and removing the rubbishes off the premises complete all as specified and as directed .

Material & Labour for PCC, (1:2:4), type B-1 (using 20mm graded crushed stone aggregates) as in foundation, filling and mass concrete, sub base etc complete all as specified and as directed.

Labour for Disconnecting of electrical connections from panel board including disconnecting the cable leads from the motor terminal box and taking down/out electric motor upto 15 HP capacities from base plate of pump set after opening the nuts, bolts etc and transporting the motor to workshop for repair and back, re-installed after repair including testing complete all as specified and as directed.

Labour for opening the electric induction motor upto 15 HP capacity including taking down/out the burnt winding wire , cleaning the slots, rewinding the motor with super enamalled copper winding wire of existing gauge , weight etc. including all other insulating material to make it functional complete all as specified and as directed . Note:- Copper winding wire of approprioate guage will be measured in supply only

Supply and fixing in replacement of motor terminal box, upto 15 HP motor capacity.

Supply and fixing in replacement of motor terminal connection plate, upto 15 HP motor capacity.

Supply and fixing in replacement of CI sleeve on bearing housing upto 15 HP motor capacity.

Supply and fixing in replacement of motor cooling fan as per site requirement for any size of motor made of PVC/ Aluminium complete.

Labour for disconnecting and de-coupling the centrifugal pump upto 15 HP capacity from foundation after opening /cutting the rusted nuts, bolts etc including transporting the pump to workshop for repair and back, re-installed at existing position after repair and providing new MS nuts, bolts,packing flange etc including testing complete all as specified and as directed.

Opening the centrifugal pump upto 15 HP capacity, repairing the same by replacing the unserviceable spare parts including machining work and re-assembling the same in original position complete all as specified and as directed.

Disconnecting of electrical connections from panel board including disconnecting the cable leads from the motor terminal box and taking down/out monoblock pump set capacity upto 12.5 HP from foundation/base plate of pump set after opening the nuts, bolts etc and transporting the pump to workshop for repair and back, re-installed after repair including testing complete all as specified and as directed .

Opening the monoblock motor and pump upto capacity 12.5 HP , taking down/out the burnt winding wire and cleaning the slots including rewinding the monoblock motor with super enamelled copper winding wire of existing gauge ,weight etc. and repairing the pump by replacing the unserviceable spare parts including machining work and re-assembling the same in original position including all other insulating material complete all as specified and as directed. Note :- Copper winding wire of appropriate gauge and spare parts of pump shall be measured and paid separetely

Supplying and assembling super enamelled copper winding wire of appropriate gauge suitable upto 25 HP capacity of centrifugal, monoblock, inducation and submersible motors.

Material and labour for painting two coats of synthetic enamel paint as per existing pattern or scheme, on centrifugal pump & motor of any capacity rating 5-20 HP, scratching the rusted and suction/ delivery pipeline including NRV and sluice valve, MS base channel including preparation of surfaces by scratching and removing the rust complete all as specified and as directed.

Supply and fixing in replacement MS base channel of size as exists including cutting, welding and making hole including applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and as directed.

Supply and fixing in replacement of MS foundation bolts with nuts and washers, size 20mm dia , 250 mm long complete all as specified and as directed.

Supply and fixing in replacement 4.00 sqmm, single core FRLS PVC insulated industrial grade copper conductor wire of following size, 1100 volts complete all as specified and as directed.

Supply and fixing in replacement 6.00 sqmm, single core FRLS PVC insulated industrial grade copper conductor wire of following size, 1100 volts complete all as specified and as directed.

Supply and fixing in replacement PVC insulated FRLS, round sheathed, copper conductor wire of 2.5 Sqmm, 3 core, 1100 volts complete all as specified and as directed.

Supply and fixing in replacement moulded case circuit breakers (MCCB), 4 pole, 100 Amps with breaking capcity 16 KA , 415 volts, complete all as specified and as directed.

Supply and fixing in replacement of Submersible panel board MN 16 DOL starter type suitable upto 10 HP complete all as specified and as directed.

Supply and fixing in replacement of fully automatic star delta starter type with sheet metal encloser MN 25 FASD complete all as specified and as directed.

Disconneting of electrical connection from the panel board, and starter of submersible pumping set of any model / make size 2 HP to 20 HP capacity and removing the pipe line connection from discharge side and taking out submersible pump set along with column pipe from bore well with the help of chain pully block including transportation to Workshop and back after repair and lowering of same pumping bore well including replacement of rusted nuts bolts rubber gasket etc to make it fully functional, testing complete all as specified and directed by Engr-in-Charge.

Opening the submersible motor & pump set of capacity 2.00 to 20.00 HP including taking down/out the burnt winding wire cleaning the slots, rewinding the motor with super enamelled copper winding wire of existing gauge, weight etc, repairing the same by replacing the unserviceable parts including machine/ lathe work and re-assembling the pump set in original position with required insulating material to make it fully functional complete all as specified and as directed by Engr-in-Charge.

Material and labour for painting of submersible pump set of size 2 HP to 20 HP with two coat of synthetic enamelled paint over coat of red oxide primer comete all as specified and ad directed by Engr-in Charge.

Material & labour for replacement of heavy duty GI nipple 300 mm long and 100 mm bore with flange welded on both ends complete all as specified and directed by Engr-in-Charge.

Material & labour for replacement of heavy duty GI nipple 300 mm long and 80 mm bore with flange welded on both ends complete all as specified and directed by Engr-in-Charge.

Supply and fixing water proof submersible cable of 6 sqmm 3 core copper conductor, PVC insulated 1100 volts grade, protected by means of metal clip alongwith the pump body and connected to pump motor through water tight sealing joints including taking out old unserviceable submersible cable complete all as specified and as directed by the Engr-in-Charge.

Supply and fixing water proof submersible cable of 10 sqmm 3 core copper conductor, PVC insulated 1100 volts grade, protected by means of metal clip alongwith the pump body and connected to pump motor through water tight sealing joints including taking out old unserviceable submersible cable complete all as specified and as directed by the Engr-in-Charge.

Supply and fixing in replacement of GI Pipe column pipe heavy grade, 100 mm bore 3 mtrs long coupled with heavy grade suitable size of MS flanges 16mm thick duly welded on both sides as directed including necessary nut and bolts with washers & rubber packing required at site condition and lowered in to the bore well including taking out old unserviceable Column pipe complete all as specified and directed by Engr-in-Charge (length of each column pipe shall be 3 Mtrs) (Note : - taking out and Lowering of Submersible pump set shall be measured and paid under respective item)

Supply and fixing in replacement of GI Pipe column pipe heavy grade, 80 mm bore 3 mtrs long coupled with heavy grade suitable size of MS flanges 16mm thick duly welded on both sides as directed including necessary nut and bolts with washers & rubber packing required at site condition and lowered in to the bore well including taking out old unserviceable Column pipe complete all as specified and directed by Engr-in-Charge (length of each column pipe shall be 3 Mtrs) (Note : - taking out and Lowering of Submersible pump set shall be measured and paid under respective item)

Supply and fixing MS clamp in replacement of MS flat size 100mm X 6mm with two Nos of MS nut & blots for 80mm dia column pipe complete all as specified and directed.

Opening the 3 HP induction motor of Air compressor, taking down/out the burnt winding wire and cleaning the slots including rewinding the induction motor with super enamelled copper winding wire of existing gauge, weight etc. and unserviceable spare parts including machining work and re-assembling the same in original position including all other insulating material complete all as specified and as directed. Note :- Copper winding wire of appropriate gauge and spare parts of pump shall be measured and paid separetely.

Supply and fixing in repair of Air presure meter in air compresssor complete all as specified and directed

Supply and fixing in repair of V belt in air compresssor complete all as specified and directed

Supply and fixing in repair of Air pessuer switch in air compresssor complete all as specified and directed

Supply and fixing in repair of Comprehesive maint of air compressor complete all as specified and directed

Supply and fixing in repair of Air presure line in air compresssor complete all as specified and directed

Supply and fixing in repair of Air filter in air compresssor complete all as specified and directed

Supply and fixing in repair of On load Change over switch, 100 Amps, 4 pole, 415 V, 50 Hz, fully compacted in 1.6mm thick CRCA sheet enclosure of suitable size and direct mounted & front operated type, manually operated, consisting of two sets of terminals for connecting two incoming supply sources alongwith all necessary accessories inclduing taking down old one complete all as specified and as directed.

Material & labour for repair of suction sweeper assembly complete all as specified and as directed.

M&L for repair of digital type water level indicator, 150mm size digital display cable system including stem insertion for sensing the water level suitable for overhead water reservior with suitable fixing arrangement and other accessories complete all as specified and as directed.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth for foundation, etc (for taking out and laying pipe etc) not exceeding 10 Sqm in plan and getting out in soft/loose soil complete all as specified and as directed.

Returning, filling in, including spreading, levelling, as in soft/loose soil complete all as specified and as directed.

Removing excavated material to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above starting point complete all as specified and as directed.

Taking up 150 mm bore cast iron pipes (including all fittings) with spigot and socket end and lead joints including burning out lead joints and recovering lead complete all as specified and as directed. Note : Excavation and earth work shall be measured and paid seperately.

All as per item No 46 here-in-before but size 100 mm bore.

All as per item No 46 here-in-before but size 80 mm bore.

Supply, laying, connection and testing 150 mm bore, ductile iron pressure pipe centrifugally cast (spun) with spigot and socket ends, class K-7 and confirming to IS 8329 - 2000 with push on rubber gasket jointing inside with cement mortar lining and outside zinc coating with finishing layer of black bitumen/blue epoxy coating duly ISI marked in any length laid in trenches complete all as specified and as directed.

All as per item No 49 here-in-before but size 100 mm bore.

All as per item No 49 here-in-before but size 80 mm bore.

S&F in repairs 150mm bore, cast iron sluice valve both end flanged, class PN 1.6 conforming to IS -14846 (raising stem type) with iron wheel head and stainless steel spindle including necessary jointing materials like nuts, bolt, washer and rubber/fiber board gasket complete all as specified and as directed.

S&F in repairs 100mm bore, cast iron sluice valve both end flanged, class PN 1.6 conforming to IS -14846 (raising stem type) with iron wheel head and stainless steel spindle including necessary jointing materials like nuts, bolt, washer and rubber/fiber board gasket complete all as specified and as directed.

S&F in repairs 100 mm bore, cast iron non-return (reflux) valve, flange type with by-pass arrangement suitable for 100 mm dia water mains conforming to IS-5312 Part-I class PN 1.6 complete all as specified and as directed.

Taking up or down 100 mm bore galvanised steel tubing including connections from trenches/wall/floor/ceiling etc and keeping serviceable pipes in safe custody for re-use at same site or other site complete all as specified and as directed. Note for item No. 21 to 27 : Excavation of earth shall be measured and paid separately under respective item.

All as per item No 55 here-in-before but size 80 mm bore.

All as per item No 55 here-in-before but size 50 mm bore.

All as per item No 55 here-in-before but size 40/32 mm bore.

All as per item No 55 here-in-before but size 25 mm bore.

All as per item No 55 here-in-before but size 20 mm bore.

All as per item No 55 here-in-before but size 15 mm bore.

Relaying/refixing 100 and 110mm bore galvanised steel tubing/PPR pipeline only jointing and testing of old GI pipes including cleaning in trenches/walls/floors complete all as specified and as directed.

All as per item No 62 here-in-before but size 80 and 90mm dia.

All as per item No 62 here-in-before but size 50 and 63mm dia.

All as per item No 62 here-in-before but size 40 mm dia.

All as per item No 62 here-in-before but size 25 mm dia.

All as per item No 62 here-in-before but size 20 mm dia.

All as per item No 62 here-in-before but size 15 mm dia.

Supply, laying, connection and testing, 100mm bore, steel water tubing, galvanised, medium grade conforming to IS 1239 (Part -1):2004 with all fittings conforming to IS 1239(Part -2):2011 and fixtures laid in trenches etc complete all as specified and as directed.

Supply, laying, connection and testing, 80mm bore, steel water tubing, galvanised, medium grade conforming to IS 1239 (Part -1):2004 with all fittings conforming to IS 1239(Part -2):2011 and fixtures laid in trenches etc complete all as specified and as directed.

Supply, laying, connection and testing, 50mm bore, steel water tubing, galvanised, medium grade conforming to IS 1239 (Part -1):2004 with all fittings conforming to IS 1239(Part -2):2011 and fixtures laid in trenches etc complete all as specified and as directed.

Supply, laying, connection and testing, 40mm bore, steel water tubing, galvanised, medium grade conforming to IS 1239 (Part -1):2004 with all fittings conforming to IS 1239(Part -2):2011 and fixtures laid in trenches etc complete all as specified and as directed.

Supply, laying, connection and testing, 25mm bore, steel water tubing, galvanised, medium grade conforming to IS 1239 (Part -1):2004 with all fittings conforming to IS 1239(Part -2):2011 and fixtures laid in trenches etc complete all as specified and as directed.

Supply, laying, connection and testing, 20mm bore, steel water tubing, galvanised, medium grade conforming to IS 1239 (Part -1):2004 with all fittings conforming to IS 1239(Part -2):2011 and fixtures fixed to walls and ceilings or laid in floors, etc complete all as specified and as directed.

Supply, laying, connection and testing, 15mm bore, steel water tubing, galvanised, medium grade conforming to IS 1239 (Part -1):2004 with all fittings conforming to IS 1239(Part -2):2011 and fixtures fixed to walls and ceilings or laid in floors, etc complete all as specified and as directed.

Taking out sluice valve of any size (200/150/100/80 mm) , any type and refacing, regrinding and refixing the same at existing locations using new gasket nuts, gland packing etc complete all as specified and as directed.

Repacking stuffing box of sluice valve spindle (200/150/100/80 mm) , any type including taking apart and reassembling complete all as specified and as directed.

M&L for filling gland packing to control water leakage in sluice valve and centrifugal/monoblock pump sets of any capacity any type as and when required and all as specified and as directed

M&L in repairs 15 mm dia stop valve cast copper alloy screwed down, high pressure with crutch or butterfly handle screwed both end for iron pipe or for union complete all as specified and as directed.

M&L in repairs 20 mm dia stop valve cast copper alloy screwed down, high pressure with crutch or butterfly handle screwed both ends for iron pipe or for union complete all as specified and as directed.

M&L in repairs 25 mm dia stop valve cast copper alloy screwed down, high pressure with crutch or butterfly handle screwed both ends for iron pipe or for union complete all as specified and as directed.

M&L in repairs 40 mm dia gate valve cast copper alloy screwed down, high pressure with crutch or butterfly handle screwed both ends for iron pipe or for union complete all as specified and as directed.

M&L in repairs 50 mm dia gate valve cast copper alloy screwed down, high pressure with crutch or butterfly handle screwed both ends for iron pipe or for union complete all as specified and as directed.

M&L in repirs 15mm bore Bib taps, cast copper alloy with crutch or butterfly handle screwed down, screwed for iron pipe or brass ferrule of 15mm bore complete all as specified and as directed.

S&F for 20 mm bore, ball valves high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe and fixed (Minimum weight - 210 gms) complete all as specified and as directed.

Surface dressing not exceeding 15 cm deep in soft/loose soil and rubishes to a distance not exceeding 50m including spraying pesticides (roundup or equivalent) to control the grass growth complete all as specified and as directed.

M&L for cleaning of valve pit chamber with sluice valve, pipes etc, 150mm to 200mm dia including replacement of existing wornout/defective gland packing, nut, bolt and washer, etc with new one to make the sluice valve perfectly leak proof including marking of flow direction of inlet and outlet pipe line with necessary colour coding with one coat of synthetic enamel paint after preparation of old steel surfaces valve pit cover complete all as specified and as directed.

All as per item No. 87 here in before but for 80 mm to 100 mm dia.

Burning out existing lead joint in position, including removing old lead and keeping in safe custody for re-use for CI pipe 150 mm bore complete all as specified and as directed.

Burning out existing lead joint in position, including removing old lead and keeping in safe custody for re-use for CI pipe 100 mm bore complete all as specified and as directed.

Burning out existing lead joint in position, including removing old lead and keeping in safe custody for re-use for CI pipe 80 mm bore complete all as specified and as directed.

M&L for run lead joint for cast iron spigot and socket pipes and fittings 150 mm bore with new lead and other jointing materials complete all as specified and as directed.

M&L for run lead joint for cast iron spigot and socket pipes and fittings 100 mm bore with new lead and other jointing materials complete all as specified and as directed.

M&L for run lead joint for cast iron spigot and socket pipes and fittings 80 mm bore with new lead and other jointing materials complete all as specified and as directed.

M&L for cast iron fittings for spigot and socketed pipe, such as bends (any type, radius and angle) tapers any type, (straight, bend, increasing, decreasing or double socket etc.) Tee pieces single branch. "Y" junction, double branch, cross (all sockets or socket and pigot) collars, caps and plugs etc upto 150mm bore complete all as specified and as directed.

Cleaning and removing all scale and dirt etc, incl dewatering the tank from upto 1000 ltrs water tanks and from mouths of circulating pipes, etc.omplete all as specified and as directed

Road cutting & make good after rectified the pipeline leakage work etc, complete all as specified and as directed

Supply and fixing galvanised steel wire rope multistrand of size 8 Sqmm as per ISO 4309:2019 and safe for carry a point load of 48.6 KN/ 5 Ton, for lowering of pump/column pipe, complete all as specified and as directed by Engr-in-Charge.

Cleaning de-sludging and removing of all scales and dirt etc. from external surfaces/at platform OH pressed steel tank of capacity 8000 to10000 gallons installed at height of 15 to 40 feet staging complete all as specified and as directed.

S&F in repair bracing, supports, cleats, clamp, etc as per existing size and thickness fabricated from stuructural steel such as angles, flat, channel, etc as required for pressed steel tank & staging at 12 m to 15 m height including cutting, drilling holes, welding as necessary to suit the site requirement and including two coats of lead free black bituminous paint suitable for drinking water internally and two coats of aluminium paint over a coat of red oxide, zinc chrome primer externally after preparation of steel surfaces complete all as specified and as directed.

Dismantling existing pressed steel plate of size 1.22m x 1.22m x 5mm thick including taking out jointing bolts, nuts, washers, etc from 10000 gallons over head pressed steel tank installed at 12 to 15 m high staging for repair, cleaning, replacement of unserviceable plates, etc and removing unserviceable plates from site and keeping serviceable plates, bolts & nuts in safe custody for reuse in work complete all as specified and as directed. Note : Cost of staging/working platform as involved for the above operation in deemed to be included in the unit rate quoted by the tenderer.

S&F for factory made pressed steel plate of size 1.22m x 1.22m x 5mm thick placed on existing position at 12 m to 15 m high staging of over head water tank including necessary jointing/connecting materials such as lead wool, rubber gasket, bituminous compound with & including (new) mild steel bolts, nuts, washers, etc as required at site to make the joints perfectly leak proof all as per manufacturer's insturctions including testing of water tightness of the tank complete and including painting with two coats lead free black bituminous paints suitable for drinking water internally over a coat of primer and two coats of aluminium paint over a coat of red oxide, zinc chrome primer externally after preparation of steel surfaces complete all as specified and as directed.

Fixing only serviceable pressed steel plate obtained from item No 101 above after necessary repair, adjustment, cleaning, washing etc and connecting with jointing materials such as lead wool, rubber gasket, bituminous compound, bolts, nuts & washers etc as required to make the joints perfectly leaf proof and testing for water tightness of the tank complete all as specified and as directed. Note : (a) Old serviceable bolts & nuts obtained from item No 104 above shall be reused after cleaning. (b) New bolts, nuts & washers wherever required as a replacement of old one as directed by the Engr-in-Charge shall be measured and paid separately as Supply only under relevant item.

Dismantling existing pressed steel plate of size 1.22m x 3.75m x 3mm thick including taking out jointing bolts, nuts, washers, etc from 10000 gallons over head pressed steel tank installed at 12 to 15 m high staging for repair, cleaning, replacement of unserviceable plates, etc and removing unserviceable plates from site and keeping serviceable plates, bolts & nuts in safe custody for reuse in the work all complete all as specified and as directed. Note : Cost of staging/working platform as involved for the above operation in deemed to be included in the unit rate quoted by the tenderer.

S&F for factory made pressed steel plate of size 1.22m x 3.75m x 3mm thick, placed on existing position at 12 m to 15 m high staging of over head water tank including necessary jointing /connecting materials such as lead wool, rubber gasket, bituminous compound with and including machine made (new) bolts, nuts, washers, etc as required at site to make the joints perfectly leaf proof all as per manufacturer's instructions and including painting with two coats of lead free black bituminous paints suitable for drinking water internally and two coats of aluminium paint over a coat of red oxide, zinc chrome primer externally after preparation of steel surfaces complete all as specified and as directed.

M&L for repairing of old joints of plates in position by unscrewing the jointing bolts, taking out jointing materials such as lead wire/tapes, lead wool, gasket, bituminous compound and replacing with new machine made bolts, nuts, washers as per existing size, gasket, lead wool, bituminous compound suitable for portable water and MS cleats wherever required complete to make the existing defective joints perfectly leak proof and testing for water tightness of the tank complete all as specified and as directed. Note : New bolts, nuts & washers wherever required as a replacement of old one as directed shall be measured and paid separately as Supply only under relevant item.

M/S Build Tech (BID ID -3062699)

M/s GANDHESWAR PHUKAN (BID ID -3064978)

M/S AUTOMOTIVE WORLD (BID ID -3064892)

FREEZCON (BID ID -3066885)

STANDARD ELECTRIC WINDERS (BID ID -3065730)

MAZUMDAR ENTERPRISE (BID ID -3064338)