REPAIRS / MAINTENANCE OF EXTERNAL WATER SUPPLY DISTRIBUTION NETWORK, SEWAGE INSTALLATION, PUMPING INSTALLATION, VALVES AND CLEANING OF OH TANKS , UG SUMPS, SHALLOW WELLS AT MAIN CAMP, MADAMBAKKAM, NARENDRA PLACE AND 9 P S AT AF STATION TAMBARAM

Amount

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth and getting out in soft/loose soil for laying pipe all as specified and directed .

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

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

Taking up or down old CI/GI Pipe of 300mm dia including fittings and branch connections from trenches etc if any for cleaning and refixing or removal complete all as specified and directed.

All as per item No 4 above but CI/GI pipe of 200mm dia

All as per item No 4 above but CI/GI pipe of 150mm dia

All as per item No 4 above but CI/GI pipe of 100mm dia

All as per item No 4 above but CI/GI pipe of 80mm dia

All as per item No 4 above but GI pipe of 50mm dia

All as per item No 4 above but GI pipe of 40mm dia

All as per item No 4 above but GI pipe of 25mm dia

All as per item No 4 above but GI pipe of 20mm dia

All as per item No 4 above but GI pipe of 15mm dia

Refixing old steel tubing and connections in new or old position of size 50mm dia (walls, ceiling, floors, etc) complete all as specified and directed. NOTE:Serviceable pipe obtained from taking down shall be refixed after cleaning.

All as per item No 14 above but GI pipe of 40mm dia

All as per item No 14 above but GI pipe of 25mm dia

All as per item No 14 above but GI pipe of 20mm dia

All as per item No 14 above but GI pipe of 15mm dia

Supply and laying of GI Medium grade pipe 100mm dia including necessary fittings such as bends, elbows, union etc in trenches complete all as specified and directed.

All as per item No 19 above but GI pipe of 80mm dia

All as per item No 19 above but GI pipe of 50mm dia

All as per item No 19 above but GI pipe of 40mm dia

All as per item No 19 above but GI pipe of 25mm dia

All as per item No 19 above but GI pipe of 20mm dia

All as per item No 19 above but GI pipe of 15mm dia

Supply and lay of GI pipe 50mm dia medium grade including fittings such as bends, reducer, elbows, union, clips, wall hooks, wooden plugs etc in wall/floor/sump/wells. including cutting through wall/floor/sump/wells and making good the distrubed surfaces to match with existing complete all as specified and directed.

All as per item No 26 above but GI pipe of 40mm dia

All as per item No 26 above but GI pipe of 25mm dia

All as per item No 26 above but GI pipe of 20mm dia

All as per item No 26 above but GI pipe of 15mm dia

Supply and laying in trenches Ductile Iron spigot and socket pipes as per IS:8329/2000 Class K7 including EPDM rubber gasket suitable for push on rubber gasket joint with inside cement mortar lining and outside Zinc bitumen coating of size 300mm dia complete all as specified and directed. Make :- Electrosteel/Tata /Jindal

All as per item No.31 above but of 200mm dia

All as per item No.31 above but of 150mm dia

All as per item No.31 above but of 100mm dia

All as per item No.31 above but of 80mm dia

S&F cast iron fittings ISI marked such as bends (any type, radius any angle) tapers any type (straight or bend), increasing, decreasing or double socket etc) Tee pieces single branch, double branch,cross(all sockets and socket and spigot) collars, caps and plugs tail piece confirming to IS 1538/1993 complete all as specified and directed.

M&L for Run lead joint including all necessary, jointing material (old recovered lead from the leaking joint shall not be reused) for the 300mm bore pipes all as specified and directed:-

All as per Sl.item No. 37 here in before but 200mm dia

All as per Sl.item No. 37 here in before but 150mm dia

All as per Sl.item No. 37 here in before but 100mm dia

All as per Sl.item No. 37 here in before but 80mm dia

S&F in repairs Gun metal gate valve confirm to IS:5312 non rustable spindle with cast iron wheel ISI marked suitable for screwing in GI pipes all as specified and directed for the following size : Make : Leader / Zoloto / Vir

50mm dia

40mm dia

25mm dia

20mm dia

15mm dia

Supply and fix in repairs Bib tap of size 15mm dia standard of PTMT any colour screwed, for iron pipe and fixed (minimium weight 90 gms) complete all as specified. Make :- Prayag/Polytuf/sudhakar

Supply and fix in repairs ball valve high pressure of PTMT with epoxy coated aluminium rod & high density plastic ball minimum weight 1240 gms screwed for iron pipe of 50mm dia complete all as specified.

Supply and fix in repairs ball valve high pressure of PTMT with epoxy coated aluminium rod & high density plastic ball minimum weight 210 gms screwed for iron pipe of 20mm dia complete all as specified.

Supply and fix in repairs ball valve high pressure of PTMT with epoxy coated aluminium rod & high density plastic ball minimum weight 142 gms screwed for iron pipe of 15mm dia complete all as specified.

Supply and fix in repairs CI Non Return valve conforming to IS-5312 Part - I ,PN 1.6 , flanged end joints with brass seating including jointing materials such as 3mm rubber gasket 01 No, 10mm dia nut & bolts and washers complete all as directed for follwing size .Make :- Kirloskar/Upadhaya/ Kartar/ Leader

150mm dia

100mm dia

80mm dia

Supply and fix Gun metal Non Return Valve ISI marked suitable for screwing in GI pipes of 50mm dia and fixed all as specified and as directed.

Supply and fix in repairs CI sluice valve for 300mm bore pipes confirming to IS -14846 PN-1.0 non raising type both ends flanged with stainless steel spindle including jointing materials such as nuts, bolts washers and 3mm rubber gasket 02 Nos complete all as specified and directed. Make :- Kirloskar/Leader/Kartar

All as per Sl.item No. 57 here in before but for 200mm dia

All as per Sl.item No. 57 here in before but for 150mm dia

All as per Sl.item No. 57 here in before but for 100mm dia

All as per Sl.item No. 57 here in before but for 80mm dia

M&L for cutting of existing road/ floor/ plinth/drain of any description of width and depth not exeeding 0.45 metre for taking out /laying of CI/DI/GI pipe line including necessary earth work excavation and making good the distrubed surface with PCC 1:3:6 type C1 using 20mm graded stone aggregate complete all as specified.

Supply and fix in repair galvanised iron valve flanges 8mm thick with suitable size drilled holes and suitable for screwing in GI pipe of 100mm bore including 3mm thick rubber washer complete all as specified.

All as per Sl.item No. 63 here in before but for 80mm dia

All as per Sl.item No. 63 here in before but for 50mm dia

Supply and fix in repair galvanised iron bolt,nut and washers of any dia and length as required at site all as specified and directed.

M&L for plain cement concrete 1:3:6 type C1 using 20mm graded stone aggregate as in foundation for valve chamber etc all specified and as directed.

M&L for brick work with sub class "B" bricks using old size bricks straight or curved on plan exceeding 6m mean radius,built in cement mortor 1:6 as in valve chamber complete all as specified and as directed.

M&L for rendering 10mm thick on fair faces of bricks ( inside of valve chamber) in cement mortor 1:4 finished the surface even and smooth without using extra cement,complete all as specified and directed.

S&F mild steel chamber cover made with mild steel sheet of 3.0mm thick for shutter angle iron frame including necessory welding and fixing arrangement and applying two coats of synthetic enamel paint over a coat of zinc chrome primer etc complete including taking down old MS sheet cover all as specified and directed.

M&L required for attending water supply complaints of any type , finding of fault/ defect and repairing the same including required jointing materials and making water supply functional complete all as specified and directed. Note for Sl.item No 71 :- Quoted rate shall be inclusive for following provisions: (i) Contractor shall deploy one plumber and one helper for collect the complaints from MES complaint cell as and when intimated by Engineer-in-Charge (ii) Tools,minor spares such as washer,nuts,white lead etc as required for rectifying complaints (iii) Contractor shall submit the details of rectification /non retification of complaints to Engineer-in-Charge after attending complaint.

Surface dressing not exceeding 15 cm deep and getting out in hard /dense soil around shallow well / pump houses inside the fencing and outside 3 meters wide around the edges of fencing all as specified and directed.

S&F in repair 12mm dia nylon rope suitable to match with existing for hanging pumpsets/submersible motors in well/sumps etc., complete all as specified and directed.

Supply only grafted cotton rope of size 8 mm dia

Supply only grafted cotton rope of size 10 mm dia

Supply only grafted cotton rope of size 12 mm dia

M&L for bailing out water from under ground sump, removing silt, sludge, mud, moss, efflorescent salts and algae growth etc., using steel wire brushes/ cleaning tools and washing all internal surfaces using cleaning materials like bleaching powder or other cleaning liquids and draining out the waste water completely including one coat of white washing all inside wall surfaces and roof including writing letter in bold with white paint of size not exceeding 10 cms height on black back ground with details such as sump capacity, date of cleaning and due date of next cleaning etc., for the following capacity all as specified and directed :-

Sump of capacity 2 Lakh gallons

Sump of capacity 60,000 gallons

Sump of capacity 50,000 gallons

Sump of capacity 30,000 gallons

Sump of capacity 10,000 gallons

Sump of capacity 6,500 gallons

Sump of capacity 6,000 gallons

Bailing out water from over head reservoir, removing silt, sludge, mud, moss, efflorescent salts and algae growth etc., using steel wire brushes/ cleaning tools and washing all internal surfaces using cleaning materials like bleaching powder or other cleaning liquids and draining out the waste water completely including one coat of white washing all inside wall surfaces and roof including writing letter in bold with white paint of size not exceeding 10 cms height on black back ground with details such as OHR capacity, date of cleaning and due date of next cleaning etc., for the following capacity all as specified and directed:-

Over Head Reservoir of capacity 1 Lakh gallons

Over Head Reservoir of capacity 50000 gallons

Over Head Reservoir of capacity 40000 gallons

Over Head Reservoir of capacity 25000 gallons

Over Head Reservoir of capacity 20000 gallons

Over Head Reservoir of capacity 15000 gallons

Over Head Reservoir of capacity 12000 gallons

S&F in repair 8mm dia nylon rope or suitable size to match with existing rope at the over head reservoir for showing water level etc., complete all as specified and directed.

Repair and replacement of water level indicator from over head reservior of capacity 40000 gallons to one lakh gallon by providing floating balls made out copper and iron weights,nylon ropes 8mm dia,wooden board with level marking,painting including fixing on RCC walls/columns complete all as specified and directed by Engineer - in - charge.

Repair and replacement of water level indicator from over head reservior of capacity 12000 gallons to 25000 lakh gallon by providing floating balls made out copper and iron weights,nylon ropes 8mm dia,wooden board with level marking,painting including fixing on RCC walls/columns complete all as specified and directed by Engineer - in - charge.

M&L for Collecting sample of water from shallow well/Pump houses and carry out all manadory tests at M/s.king Institute, Guindy or NABL approved Laboratories/ Govt Institutions/ Central & State Govt water analysis laboratories for the suitability of water for drinking purpose and submission of analysis report all as directed.

M&L for water pressure gauge,scale 0 to 60 kg/sqcm, white aluminium dial 200mm dia,black steel case,bottom connection with brass socket for 15mm pipe including taking down unserviceable meters all as specified and as directed by Engineer in charge.

Repairing centrifugal split type/monoblock pump set by replacing of the relevant spares taken and including packing, refixing and testing of motor of capacity 12.5/15 HP complete etc., all as specified and as directed.(Make:- Kirloskar ) Note: Spare parts/ accessories like shaft, bush, bearings, gland etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares suitable for 12.5/15 HP capacity centrifugal split type/monoblock pump set

Shaft

Bearing

Gland/ Water seal

Repairing centrifugal split type/monoblock pump set by replacing of the relevant spares taken and including packing, refixing and testing of motor of capacity 10 HP complete etc., all as specified and as directed.(Make:- Kirloskar ) .Note: Spare parts/ accessories like shaft, bush, bearings, gland etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares suitable for 10 HP capacity centrifugal split type/monoblock pump set

Shaft

Bearing

Gland/ Water seal

Repairing centrifugal pump set by replacing of the relevant spares taken and including packing, refixing and testing of motor of capacity 7.5/5 HP complete etc., all as specified and directed (Make:- Kirloskar ) Note: Spare parts/ accessories like shaft, bush, bearings, gland etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares suitable for 7.5/5 HP capacity monoblock pump set

Shaft

Bearing

Repairing centrifugal non clog sewage pump set by replacing of the relevant spares taken including packing, refixing and testing of motor of capacity 12.5 HP complete etc., all as specified and directed.Note: Spare parts/ accessories like shaft, rubber flap, bearings, gland packing, rubber packing and sleeve etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares of 12.5 HP capacity centrifugal non clog sewage pump set

Shaft

Rubber flap

Ball bearing

Gland packing

Rubber packing

Sleeve

Taking out the submersible pump set/ monoblock submersible pump sets from its position and carrying out repairs after proper cleaning of impellers & shafts, including packing, refixing in position and testing of motor of capacity 5 HP/7.5/10 HP complete etc., all as specified and directed.(Make:- Kirloskar ) Note: Spare parts/ accessories like impeller, shaft, bush and sleeve etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares of 5 HP/ 7.5/10 HP capacity submersible pump set/ monoblock submersible pump set

Impeller

Shaft

Sleeve

M&L for stripping out squirrel cage, induction motor, 3 phase 415 volts AC 50 centrifugal/submersible starter and rotor cleaning up internally and externally including removing old burnt copper wire, worn out bearing and rewiring/ rewinding with new copper wire, including necessary transportation workshop and bring back to the installation and assembling, testing and commissioning of motor complete etc., all as specified and directed for the following capacity:-

For 15 HP capacity

For 12.5 HP capacity

For 10 HP capacity

For 7.5 HP capacity

For 5 HP capacity

Taking up defective submersible pump set/ Monoblock submersible pump sets 3 phase,AC,415 volts, 50 c/s from shallow well and disconnecting cable, GI delivery pipe etc,taking out/transport to work shop, dismantling and rewinding submersible pump motor with appropriate size of copper wire , reassembling,erecting back in position, cable jointing, testing and commissioning of motor complete all as specified and directed for the following capacity:-

For 5 HP capacity

For 7.5 HP capacity

For 10 HP capacity

Taking up unserviceable centrifugal non clog submerciable sewage pump set 40 HP from sewage sump by bail out the water, disconnectin ,declamping, transport to authorised work shop taken to civil workshop and re-installation in the sump,testing complete including replacement of Gasket,cable end cap,Seal,Painting and service charges complete all as directed.(Make:- Kishore ) .Note: Spare parts/ accessories like Winding charges, bearings,Seal,Sensor,Shaft etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares of centrifugal non clog submerciable sewage pump set 40HP capacity

Winding with new copper wire of appropriate size including removing old burnt copper wire

Bearing 02 Nos.( Lower and Upper)

M-seal lower and upper

Temperature Sensor

Moisture sensor

Rotor Shaft

Taking up unserviceable centrifugal non clog submerciable sewage pump set 12.5 HP from sewage sump by bail out the water, disconnectin ,declamping, transport to authorised work shop taken to civil workshop and re-installation in the sump,testing complete including replacement of Gasket,cable end cap,Seal,Painting and service charges complete all as directed.(Make:- Kishore ) .Note: Spare parts/ accessories like Winding charges, bearings,Seal,Sensor,Shaft etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares of centrifugal non clog submerciable sewage pump set 12.5 HP capacity

Winding with new copper wire of appropriate size including removing old burnt copper wire

Bearing 02 Nos.( Lower and Upper)

M-seal lower and upper

Temperature Sensor

Moisture sensor

Rotor Shaft

S&F CI impeller for centrifugal/ monoblock pump set coupled with motor of capacity upto 12.5 HP all as specified and as directed.

S&F CI impeller for centrifugal non clog sewage pump set coupled with motor of capacity 12.5 HP of make Kirloskar model SP 4L+ all as specified and directed

S&F rubber flap with weight suitable for non clog sewage 12.5 HP pump set make Kirloskar model SP 4L+ all as specified and directed.

Taking down the old unserviceable coupling of pump sets and replacing with new F-70 type coupling with MS pulley 2 No's complete set including necessary machinery work including assembling and testing for satisfactory function all as specified and directed.

Supply and replacement of ball bearings including applying lubricating and testing complete for following:-

M&L for earthing for pole complete with galvanized steel earth plate electrode 600X600X6mm thick buried directly in ground (earth pit not less than 2.25m deep below normal ground level) with top edge of the plate not less than 1.5M below normal ground level connected to GI earth lead of 32x6 mm GI strip by means of nuts, bolts, check nuts and washer of GI protection pipe 40mm light grade and connecting to testing point including provision of test point and all as shown in electrical plate No. 5 of SSR Pt I (2009). The quoted rate shall be inclusive of necessary earth work and PCC chamber with cement concrete 1:3:6 type C1 complete all as specified and directed (Note:- (a) GI strip beyond 7.5M shall be measured and paid separately (b) The rate shall deemed to be inclusive of the cost of earth work, excavation on any type soil and removal of surplus soil to a distance of 50 Mtrs, RCC 1:2:4 type B1 earth pit cover including 6 Nos of 6 mm dia CTD bar on both direction, earth lead protection GI pipe medium grade with suitable size from earth plate electrode to main switch board complete.

S&F contactor for Star Delta starter 440 volts, 50 Hz, 16 Amps suitable for 7.5/10 HP capacity inuction motor, 3 phase, AC all as specified and as directed.

S&F contactor for Star Delta starter 440 volts, 50 Hz, 25 Amps suitable for 12.5/15 HP capacity induction Motor, 3 phase, ACall as specified and as directed.

S&F DOL starter suitable for submersible pump 3 phase AC motor upto 7.5HP,3Phase,415 volt all as specified and as directed.

S&F Electronic overload relay suitable for 5 to 10HP submersible pump all as specified and as directed.

S&F Electronic overload relay suitable for 12.5 to 40 HP capacity submersible pump all as specified and directed.

S&F No volt coil, 440 volt ,suitable starters up 7.5 to10 HP capacity all as specified and as directed.

S&F No volt coil suitable for DOL starter up to 5 HP capacity, 440 volts all as specified and as directed.

S&F in repair single phase preventer all as specified and as directed. Make: Minilec

S&F MCB TPN, capacity 63 Amps, 10 KA fixed in repair suitable for LT panel board including dismantling existing unserviceable MCCB complete all as specied and as directed.

S&F MCCB TPN 63Amp,25 KA, 415 volt,fixed in repair on existing panel board including dismantling existing unserviceable MCCB complete all as specied and directed.

S&F automatic star delta starter suitable for pump set, 3 phase AC motor capacity 7.5 to 15 HP, built in overload relay, single phase preventor , AC 3 four pole contactor, 415 volt in heavy duty deep drawn sheet metal box complete all as specied and directed.

M/S CLIMATE CONTROLS