REPAIR MAINTENANCE OF EXTERNAL WATER SUPPLY SEWAGE INSTALLATION LINES VALVES VALVE CHAMBER PUMPSET AND ALLIED WORKS AT MADAMBAKKAM NP AREA AND 9 P AND S AT AFS TAMBARAM

Amount

M&L for attending water supply complaints of any type ,including finding the fault/ defect and repairing the same including with required jointing materials and making water supply functional complete all as specified and directed by Engineer-in-Charge. .Note:- Quoted rate shall deemed to be inclusive for following provisions: (i) Contractor shall deploy a team of one plumber and one helper. The supervisor shall need to collect the complaints from MES complaint cell as and when intimated by Engineer-in-Charge through phone, email or any other electronic means without any delay. (ii) Tools,minor spares such as washer,nuts,white lead etc as required for rectifying complaints shall need to be carried alongwith by the team. (iii) Finally, Contractor shall submit the details/status of the rectification /non rectification of complaints to Engineer-in-Charge after attending complaint.

Excavation in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre depth and getting out in hard/dense soil for taking out / laying of GI pipe complete all as specified and directed by Engineer-in-charge.

Returning and filling including spreading, leveling, watering and well remming in layer n-exc 25 mm thick in soft/loose soil complete all as specified and directed by Engineer-in-charge.

Removing excavated soil to a distance not exceeding 50 mtrs and depositing where directed at a level not exceeding 1.5metre above the starting point complete all as specified and directed by Engineer-in-charge.

M & L for taking up or down from trenches old CI/GI Pipe including fittings and branch connections if any for cleaning and refixing or removal to stores for further disposal of complete all as specified and directed for the following size:- Note : Necessary earthwork, excavation shall be measured and paid separately.

300 mm dia

200mm dia

150mm dia

100mm dia

80mm dia

50mm dia

40mm dia

25mm dia

20mm dia

15mm dia

Material and labour for construction of masonary valve chamber of internal size 600x600x600mm with brick masonary set in cement mortar 1:6 over 100mm thick PCC (1:4:8) type D2 concrete foundation, 50mm thick PCC (1:2:4) type B1 in coping 15mm thick plaster in CM (1:4) for internal surfaces of walls and externally upto 15cm below ground level, including MS sheet 3.15mm thick hinged cover with locking arrangements including lifting handle fixed to 50x50x6mm angle iron frame embedded in PCC coping including two coats of synthetic enamel paint to steel surfaces; over a coat of red oxide primer including necessary excavation and earth work in any type of soil and removal of surplus excavated soil to a distance not exceeding 50metre including dismantling of old broken valve pit chamber complete all as specified and directed by Engineer-in-charge.

Material and labour for construction of masonary valve chamber of internal size 900 x 900 x 900 mm with brick masonary set in cement mortar 1:6 over 100mm thick PCC (1:4:8) type D2 concrete foundation, 50mm thick PCC (1:2:4) type B1 in coping 15mm thick plaster in cm (1:4)m for internal surfaces of walls and externally upto 15cm below ground level, including MS sheet 3.15mm thick hinged cover with locking arrangements including lifting handle fixed to 50x50x6mm angle iron frame embedded in PCC coping including two coats of synthetic enamel paint to steel surfaces; over a coat of red oxide primer including necessary excavation and earth work in any type of soil and removal of surplus excavated soil to a distance not exceeding 50metre including dismantling of old broken valve pit chamber complete all as specified and directed by Engineer-in-charge.

Material and labour for construction of masonary valve chamber of internal size 1200 x 1200 x 1000 mm with brick masonary set in cement mortar 1:6 over 100mm thick PCC (1:4:8) type D2 concrete foundation, 50mm thick PCC (1:2:4) type B1 in coping 15mm thick plaster in cm (1:4)m for internal surfaces of walls and externally upto 15cm below ground level, including MS sheet 3.15mm thick hinged cover with locking arrangements including lifting handle fixed to 50x50x6mm angle iron frame embedded in PCC coping including two coats of synthetic enamel paint to steel surfaces; over a coat of red oxide primer including necessary excavation and earth work in any type of soil and removal of surplus excavated soil to a distance not exceeding 50metre including dismantling of old broken valve pit chamber complete all as specified and directed by Engineer-in-charge.

M & L for Re-fixing old serviceable steel tubing and connections in new or old position of size in walls, ceiling, floors, / trenches complete all as specified and directed for the following size:-

50mm dia

40mm dia

25mm dia

20mm dia

15mm dia

Supply and lay GI pipe of medium grade ISI marked including fittings such as bends, reducer, elbows, union etc in trenches complete all as specified and directed for the following size :- Note : Necessary earthwork, excavation shall be measured and paid separately.

100 mm dia

80mm dia

50mm dia

40mm dia

25mm dia .

20mm dia

15mm dia

Supply and lay GI pipe of medium grade ISI marked 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 disturbed surfaces to match with existing complete all as specified and directed for the following size :- Note : Necessary earthwork, excavation shall be measured and paid separately.

100 mm dia

80mm dia

50mm dia

40mm dia

25mm dia

20mm dia

15mm dia

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

300mm dia

200mm dia

150mm dia

100mm dia

80mm dia

M & L in repair CI/DI 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 by Engineer-in-charge.

M & L run lead joint including all necessory jointing materials like lead spun yarn etc (old recovered lead from leaking joints shall not be re used) for the CI pipe complete all as specified and directed for the following size :-

300 mm dia

200mm dia

150mm dia

100mm dia

80mm dia

Supply and fix in repairs Gun metal globe or gate valves,ISI marked with iron wheel head, screwed both ends for iron pipe complete all as specified and directed for the following size:- .

50mm dia

40mm dia

25mm dia

20mm dia

15mm dia

Supply and fix in repairs CI Non Return valve conforming to IS-5312 Part - I ,PN 1.6 ,having 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 the following size :-

150mm dia

100mm dia

80mm dia

Supply and fix Gun metal Non Return Sluice Valve of size 50mm bore ISI marked suitable for screwing in GI pipes fixed complete all as specified and directed by Engineer-in-charge.

Supply and fixing in replacement CI sluice valve confirming to IS -14846 PN-1.0 non raising type both ends flanged with SS spindle including jointing materials such as nuts, bolts washers and 3mm rubber gasket 02 Nos complete all as specified and directed for the following size.

300 mm dia

150mm dia

100mm dia

80mm dia

Cutting of existing road of any description of length upto 4.00m as per existing road, 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 disturbed surface with Plain Cement Concrete 1:3:6 type C1 nominal mix using 20mm graded stone aggregate or with bitumen instant road repair mix to match the existing black top bituminous surface complete all as specified and directed by Engr-in-Charge. Note- PCC shall be measured and paid separately.

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

M&L for Plain cement concrete 1:3:6 type C1 Nominal mix using 20mm graded stone aggregate as in foundation for etc complete all as specified and directed by Engineer-in-charge.

Supply and fixing LED aviation light 10 watt rating voltage 215 to 245 V including necessary connection with three run of 1.50 sqmm single core copper wire fixed on over head tank of any height complete all as specified and directed by Engineer-in-charge.

Supply and fixing lightening arrester at over head tank with aluminium strip 25 X 3mm fix with saddle s properly top to bottom complete all as specified and directed by Engineer-in-charge.

Supply and installing water level gauge on over head tank scale marking in cm unit scale material aluminium pressure type low petrotech RCC overhead storage tank level indicator is simple economic level measuring instrument including all connecting items (ie) connected pipe, wire rope, float, guiding flanges, process flages and anchor plate including top mounting brackets & side bracket complete all as specified and directed by Engineer-in-charge.

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

M&L for rendring 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 by Engineer-in-charge.

M&L for Mild steel chamber cover made with mild steel sheet of 3.15mm thick for shutter angle iron frame including necessory welding and fixing arrangement and applying two coats of synthetic enamel paint over a coat of metal primer etc complete including taking down old MS sheet cover complete all as specified and directed by Engineer-in-charge.

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 complete all as specified and directed by Engineer-in-charge.

S&F in repair 12mm dia nylon rope or suitable size to match with existing at the for hanging pumpsets/motors in well/sumps etc., complete all as specified and directed by Engineer-in-charge.

Supply only grafted cotton rope (gland packing rope ) complete all as specified and directed for thef following sizes:-

6 mm dia

8 mm dia

10 mm dia

12 mm dia

M&L required for attending pump set /motor complaints of any type , finding of fault/ defect and repairing the same including required repairing materials and making pump sets/motor functional complete all as specified and directed by Engineer-in-Charge. Note :- Quoted rate shall be inclusive for following provisions: (i) Contractor shall deploy one supervisor, one Motor Mechanic and one helper. The supervisor shall collect the complaints from MES complaint cell as and when intimated by Engineer-in-Charge (ii) The team shall need to carry 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.

M&L for repairing centrifugal pump set by replacing of the relevant spares taken and including packing, refixing and testing of motor of capacity 40 HP complete etc.complete all as specified and directed by Engineer-in-charge. Location: MES Complex P/H.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 under repair required for 40 HP capacity centrifugal pump set mentioned above:-

Impeller

Pump Shaft

Shaft Sleeve

Bearing

Gland collar complete with nut and bolts

Repairing centrifugal pump set by replacing of the relevant spares taken and including packing, refixing and testing of motor of capacity 5 to 25 HP complete etc complete etc.complete all as specified and directed by Engineer-in-charge. .Location : C Tank P/ H 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 under repair required/ suitable for 25/20 HP capacity centrifugal pump set:-

Impeller

Pump Shaft

Shaft Sleeve

Bearing

Gland coller complete with nut and bolts

M&L for repairing centrifugal split type/monoblock pump set by replacing of the relevant spares taken and including packing, refixing and testing of motor of capacity 15 HP complete etc.complete all as specified and directed by Engineer-in-charge. Location : One Lakh Gallon P/H 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 under repair required/ suitable for 15 HP capacity centrifugal split type/monoblock pump set

Impeller

Pump Shaft

Shaft Sleeve

Bearing

Gland coller complete with nut and bolts

M&L for 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 all as specified and directed by Engineer-in-charge. Location : Main Camp sewage P/H Make : Kirloskar 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 under repair required for 12.5 HP capacity centrifugal non clog sewage pump set :-

Impeller

Rubber Flap

Pump Shaft

Rubber flap

Ball bearings

Gland collar complete with nut and bolts

Rubber packing

Shaft 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 2/3 HP to 10 HP complete etc., complete all as specified and directed by Engineer-in-charge. (Make:- Kirloskar ) Location : MES Complex P/H 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 2/3 HP capacity submersible pump set/ monoblock submersible pump set

Impeller

Pump Shaft

Bearing

Shaft Sleeve

M&L for stripping out squirrel cage, induction motor, 3 phase 415 volts AC 50 c/s 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 .Location : Camp Pump Houses

40 HP capacity

20/25 HP capacity

15 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 OEM recommended , reassembling,erecting back in position, cable jointing, testing and commissioning of motor complete all as specified and directed for the following capacity:- ( Location: Camp Shallow wells ) Note - Necessary Gate pass shall be issued by the Engineer-in-charge before taking out to workshop and the same shall need to be attached along with with RAR/Final Bill.

2/3 HP capacity

5 HP capacity

7.5 HP capacity

10 HP capacity

Taking up unserviceable centrifugal non clog submerciable sewage pump set 25HP from sewage sump by bail out the water, disconnecting ,declamping, transport to authorised work shop and re-installation in the sump,after repaired,testing complete including replacement of accessories like Gasket,cable protector kit,terminal block with terminal plate,'O' rings,seal monitors,safety rings,cable end cap,Painting etc as required complete and service charges complete all as specified and directed by Engineer-in-charge.(Make:- KSB ) Location : Main Camp sewage pump House . Note: (a) Replacement of Winding,insulating oil, bearings,Seal, Sensor,Shaft etc., shall be measured and paid separately under relevant items of this schedule. (b) Necessary Gate pass shall be issued by the Engineer-in-charge before taking out to workshop and the same shall need to be attached along with with RAR/Final Bill.

Supply only the following spares under repair required for centrifugal non clog submerciable sewage pump set 25HP capacity:-

Re-winding stator with with new copper wire of appropriate size of class-F insulation and including removing old burnt copper wire

Replacement of bearing (Top,bottom & RR)

Replacement of mechanical seal lower and upper

Temperature Sensor

Moisture sensor

Rotor Shaft

Replacement Insulating oil of appropriate grade as per the OEM recommendition

Taking up unserviceable centrifugal non clog submerciable sewage pump set 12.5HP from sewage sump by bail out the water, disconnecting ,declamping, transport to authorised work shop as directed by Engineer-in- charge and re-installation in the sump,testing complete including replacement of Gasket,cable end cap, water/oil Seal,oil, painting and service charges etc.,lathe work as required complete all as specified and directed by Engineer-in-charge. (Make:-Kishore ) Location : Main Camp sewage pump House. Note: Spare parts/ accessories like Winding charges,bearings,Seal,Sensors,Shaft etc., shall be measured and paid separately under relevant items of this schedule.(b) Necessary Gate pass shall be issued by the Engineer-in-charge before taking out to workshop and the same shall need to be attached along with with RAR/Final Bill.

Supply only the following spares in repair required for centrifugal non clog submersible sewage pump set12.5HP capacity

Re-winding stator with with new copper wire of appropriate size of class-F insulation and including removing old burnt copper wire

Bearing upper and lower.

M-seal lower and upper

Temperature Sensor

Moisture sensor

Rotor Shaft

O Ring

Repalcement of Insulating oil of appropriate grade as recommended by OEM

S&F in repair contactor for Star Delta starter 440 volts, 50 Hz, 3 phase, AC, suitable for following HP of induction motors complete all as specified and directed by Engineer-in-charge.

upto16 Amps suitable for 7.5 / 10 HP

upto 25 Amps suitable for 12.5/15 HP

upto 80 Amps suitable for 25/ 40 HP

Supply and fix in repair DOL starter suitable for submersible pump 3 phase AC motor upto 5HP,3Phase,415 volt complete all as specified and directed by Engineer-in-charge.

Supply and fix in repair automatic star delta starter suitable for pump set, 3 phase AC motor capacity 7.5 to 15HP,built in overload relay,single phase preventor,AC3,4pole contactor,415 volt in heavy duty deep drawn sheet metal box complete all as specified and directed by Engineer-in-charge.

Supply and fix in repair electronic overload relay suitable for submersible pump of following capacity complete all as specified and directed by Engineer-in-charge :-

S&F No volt coil, 440 volt ,suitable for star delta starters up 7.5 to10 HP capacity complete all as specified and directed by Engineer-in-charge.

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

S&F in fix single phase preventer for 3 phase motors complete all as specified and directed by Engineer-in-charge.

Supply and fix in repairs MCB TPN, capacity 40/63 Amps, 10 KA suitable for LT panel board including dismantling existing unserviceable MCB complete all as specified and directed by Engineer-in-charge.

Supply and fix following capacity of MCCB TPN , 415 volt, of following capacity fixed in repair on existing panel board including dismantling existing unserviceable MCCB complete all as specified and directed by Engineer-in-charge:-

63 Amp ,25 KA

100 Amp.25 KA

Taking out defective flat PVC insulated, submersible cable,3 core, 4 Sqmm multistranded copper cable from submersible pump set including supply and providing new cable of same size, jointing with jointing materials, testing and commissioning etc., complete all as specified and directed by Engineer-in-charge.

M/L for earthing for pole/over head Tank complete with galvanized steel earth plate electrode 600 X 600 X 6mm 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 1.5metre below normal ground level connected to GI earth lead strip 32 X 6 mm as earth lead by means of nuts, bolts, check nuts and washer of GI steel and connecting to testing point including provision of test point and all as shown in electrical plate No.3 of SSR Pt I (2009). The quoted rate is inclusive of necessary earth work and PCC chamber in type B1 (1:2:4) with 8 mm CTD bar reinforcement both ways at 140 mm centre to centre complete all as specified and directed by Engineer-in-charge. Note : The GI strip and GI earth protection pipe upto 7.5 mtr lenght is included in the unit rate and beyond 7.5 metre shall be measured and paid seperately.

M&L in repair for Earth continuity conductor or main earthing fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/ pipe or fixed to plant /machinery or any other indicated situation for loop earthing as required 25 x 3 mm aluminium strip complete all as specified and directed by Engineer-in-charge.

M&L for servicing / maintenance including repairs but excluding supply of spares as required of complete altoch Dosing system installed in tech areas constituting following operations: (a) Dismantling of altoch Dosing System complete part by part in MES yard/ workshop, cleaning of all the stationary and rotary parts,repairing to gear box and display the parts at site for inspection of Engr-in-Charge to ascertain the serviceability / unserviceability of plant and to ascertain the quantum of defects and repairs involved. (b) Transporting the defective parts to authorised dealer for repairs as decided by the Engineer-in-Charge and carrying out the needful repairs including replacement of defective unserviceable parts as per OEM recommendation. (c) Assembling the altoch Dosing System after repair/service and carrying out necessary test in presence of Engineer-in-Charge to establish functionability of the repaired plant upto the entire satisfaction of Engnr-in-Charge. Note: (i) Maintenance / servicing of each altoch Dosing System shall be measured and paid maximum twice in every month. However, in case of unserviceability of the same, the contractor shall be required to carry out the job for its maintenance any number of times as required and directed at site as a case of emergency breakdown. (ii) Any minor parts/spares required to make plant serviceable even if not notified by the Engr-in-Charge shall be supplied by the firm without any extra cost to the department. (iii) Necessary Gate pass shall be issued by the Engineer-in-charge before taking out to workshop and the same shall need to be attached along with with RAR/Final Bill.

Supply only the following components/spares in repair required for altoch Dosing sytem (PROVISIONAL) Items to be incorporated against item No.- 59 here in before:

PVC Dosing head assemblywith suction and delivery adopter Make- Satya sai or equivalent as E-in-C approved list of make.

Weighted suction line strainer 3/8 ". Make- Satya sai or equivalent as E-in-C approved list of make.

3/8 " white suction / discharge tubing. Make- Satya sai or equivalent as E-in-C approved list of make.

NRV (Non Return Valve) for delivery line Make- Satya sai or equivalent as E-in-C approved list of make.

Dosing agitator rod with fan ,PP coating Make- Satya sai or equivalent as E-in-C approved list of make.

Stater Make- Satya sai or equivalent as E-in-C approved list of make.

gear oil 460 Make- Satya sai or equivalent as E-in-C approved list of make.

PVC NRV set with glass ball for suction and delivery adopter Make- Satya sai or equivalent as per E-in-C approved list of make.

SJM CONSTRUCTIONS (BID ID -3397475)

UNIVERSAL ENGINEERING (BID ID -3405498)

rc enterprises (BID ID -3396888)

M/S SRI BALAJI ENTERPRISES (BID ID -3405641)

M/S CLIMATE CONTROLS (BID ID -3404549)

M/s Bakiyalakshmi Enterprises (BID ID -3396976)

Sri Sankar Enterprises (BID ID -3405323)