COMPREHENSIVE MAINT OF STP INSTALLED UNDER GE CHENNAI

Amount

REVISED BOQ UPLOADED ON 09 MAY 2023

SCH A PART -I

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m depth and getting out soft / loose soil for laying cables / pipes / erection of poles etc all as specified and as directed.

Removing excavated material (soil) not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point all as specified and as directed.

Returning filling in soil including spreading leveling watering well ramming in layers not exceeding 25 cm each all as specified and as directed.

Taking out unserviceable GI pipe line of following sizes from trenches including fittings complete all as specified and as directed by Engineer-in-Charge. Note: Excavation and earthwork will be measured and paid for separately under appropriate items.

150mm bore GI pipe.

100mm bore GI pipe.

80mm bore GI pipe.

50mm bore GI pipe.

40mm bore GI pipe.

25 mm bore GI pipe

20 mm bore GI pipe

Supply and lay GI tubing medium grade with screw, socket joints with all fitings / fixtures like bends, sockets, unions, nipples etc laid in trenches, fixed on wall or floor including making alterations in existing/ new pipes as required for following sizes

150mm bore GI pipe.

100mm bore GI pipe.

80mm bore GI pipe.

50mm bore GI pipe.

40mm bore GI pipe.

25 mm bore GI pipe

20 mm bore GI pipe

Taking out unserviceable DI pipeline of following sizes from trenches including fittings , rubber joints complete all as specified and as directed. Note: Excavation and earthwork will be measured and paid for separately under appropriate items.

100mm bore DI pipe

150 mm bore DI pipe

Supply and laying in trenches 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 following sizes:- Make :- Electrosteel/Tata /Jindal

100mm bore DI pipe

150 mm bore DI pipe

Material and labour for DI/CI fittings upto 150mm dia, 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.

Taking out unserviceable MS pipeline from making alterations in existing/ new pipes including fittings / fixtures all as specified and as directed by Engineer-in-Charge.. Note: Excavation and earthwork will be measured and paid separately under appropriate items.

150 mm bore MS pipe

100 mm bore MS pipe

80 mm bore MS pipe

65 mm bore MS pipe

40 mm bore MS pipe

Supply and fix of MS pipes heavy grade, of any length with screw, socket joints with all fitings / fixtures like bends, sockets, unions, nipples etc laid in trenches, fixed on wall or floor including making alterations in existing/ new pipes as required for following sizes:-

150 mm bore MS pipe

100 mm bore MS pipe

80 mm bore MS pipe

65 mm bore MS pipe

40 mm bore MS pipe

Taking out unserviceable butterfly valve of following sizes:-

100 mm dia

80 mm dia

50 mm dia

40 mm dia

Supply and fix of cast iron butterfly valve as per BS-5155 standard wafer and lug type can be easliy fixed between two flanges with studs,bolts bolts,nuts,washers etc all as specified and as directed for the following sizes:-

100 mm dia

80 mm dia

50 mm dia

40 mm dia

Taking out unserviceable CI Non Return valve of size 150mm dia all as directed.

Taking out unserviceable CI Non Return valve of size 100mm dia all as directed.

Supply and fix CI Non Return valve conforming to IS-5312 Part - I ,PN 1.6 ,having flanged end joints suitable size of 150 mm dia with brass seating including jointing materials such as 3mm rubber gasket 02 Nos, 10mm dia nut & bolts and washers complete all as directed.

Supply and fix CI Non Return valve conforming to IS-5312 Part - I ,PN 1.6 ,having flanged end joints suitable size of 100 mm dia with brass seating including jointing materials such as 3mm rubber gasket 02 Nos, 10mm dia nut & bolts and washers complete all as directed.

Taking down unserviceable Gun metal globe/gate valve of following sizes:-

50 mm dia

40 mm dia

25 mm dia

20 mm dia

Supply and fix Gun metal globe / gate valve conforming to IS 778-1984 with iron wheel head, screwed both ends for GI pipe including all fittings / fixtures like nipple, union etc complete for following sizes all as specified and as directed

Taking down unserviceable Foot valve of following sizes.

100 mm dia

80 mm dia

50 mm dia

40 mm dia

Supply and fix Foot valve cast iron body with fianged and leather diaphram including bolts, nuts gaskets etc all as directed for following sizes :-

100 mm dia

80 mm dia

50 mm dia

40 mm dia

Disconnecting inlet&outlet pipe and electrical connection,taking out complete elecric driven centrifugal/monoblock pump set of capacity up to 3 HP ,3phase,415volts,50Hz with suction and delivery lins of any size,shifting to civil workshop for carrying out repair/overhauling including replacement of wornout parts for smooth function and briging back after repair,refixing testing commissioning etc., complete all as specified and as directed. including carrying out repair/overhauling and replacement of wornout spares for smooth function, complete all as specified and as directed. Note: 1.Supply only of parts and cost of rewinding shall be measured and paid under relevant item of this schedule. 2.The labour element involved in replacing of parts shall be deem to have been included in this item

Supply only following Parts for upto 3.0 HP capacity electric driven pump set:-

Dismantling of motor of capacity upto 3.0 HP, cutting and taking out burnt / unserviceable winding coils, cleaning of slots and rewinding with correct size / gauge super enamelled insulated copper wire including providing proper insulation, varnishing, drying, reassembling

Ball bearings (drive /non drive )

Cooling fan blade

Terminal Box.

Terminal connectors 3 phase.

Electro dynamically balanced bronze impellor

Shaft (mild steel)

Gun metal bush

Gland cup with bolts and nuts.

Water seal

Flange drilled suitable size with bolts, nuts and rubber gasket.

Air lock nozzle brass

Shaft coupling

Rotor

Disconnecting inlet&outlet pipe and electrical connection,taking out complete elecric driven centrifugal/monoblock pump set of capacity 5 HP/7.5 HP ,3phase,415volts,50Hz with suction and delivery lins of any size,shifting to civil workshop for carrying out repair/overhauling including replacement of wornout parts for smooth function and briging back after repair,refixing testing commissioning etc., complete all as specified and as directed. including carrying out repair/overhauling andreplacement of wornout spares for smooth function, complete all as specified and as directed. Note: 1.Supply only of parts and cost of rewinding shall be measured and paid under relevant item of this schedule. 2.The labour element involved in replacing of parts shall be deem to have been included in this item

Supply only following spares for 5.0/7.5 HP, capacity electric driven pump set:-

Dismantling of motor of capacity 5 HP/7.5 HP, cutting and taking out burnt / unserviceable winding coils, cleaning of slots and rewinding with correct size / gauge super enamelled insulated copper wire including providing proper insulation, varnishing, drying, reassembling

Ball bearings (drive /non drive )

Cooling fan blade

Terminal Box.

Terminal connectors 3 phase.

Electro dynamically balanced bronze impellor

Shaft (mild steel)

Gun metal bush

Gland cup with bolts and nuts.

Water seal

Flange drilled suitable size with bolts, nuts and rubber gasket.

Air lock nozzle brass

Shaft coupling

Rotor

Disconnecting inlet&outlet pipe and electrical connection,taking out complete elecric driven centrifugal/monoblock pump set of capacity 10 HP ,3phase,415volts,50Hz with suction and delivery lins of any size,shifting to civil workshop for carrying out repair/overhauling including replacement of wornout parts for smooth function and briging back after repair,refixing testing commissioning etc., complete all as specified and as directed. including carrying out repair/overhauling andreplacement of wornout spares for smooth function, complete all as specified and as directed. Note: 1.Supply only of parts and cost rewinding shall be measured and paid under relevant item of this schedule. 2.The labour element involved in replacing of parts shall be deem to have been included in this item

Supply only following spares for 10 HP, capacity electric driven pump set:-

Dismantling of motor of capacity 10 HP, cutting and taking out burnt / unserviceable winding coils, cleaning of slots and rewinding with correct size / gauge super enamelled insulated copper wire including providing proper insulation, varnishing, drying, reassembling

Ball bearings (drive /non drive )

Cooling fan blade

Terminal Box.

Terminal connectors 3 phase.

Electro dynamically balanced bronze impellor

Shaft (mild steel)

Gland sleeve

Water seal

Air lock nozzle brass

Shaft coupling

Disconnecting inlet&outlet pipe and electrical connection,taking out complete elecric driven centrifugal/monoblock pump set of capacity 10 HP ,3phase,415volts,50Hz with suction and delivery lins of any size,shifting to civil workshop for carrying out repair/overhauling including replacement of wornout parts for smooth function and briging back after repair,refixing testing commissioning etc., complete all as specified and as directed. including carrying out repair/overhauling andreplacement of wornout spares for smooth function, complete all as specified and as directed. Note: 1.Supply only of parts and cost of rewinding shall be measured and paid under relevant item of this schedule. 2.The labour element involved in replacing of parts shall be deem to have been included in this item

Supply only following spares for 15 HP, capacity electric driven pump set:-

Dismantling of motor of capacity 15 HP, cutting and taking out burnt / unserviceable winding coils, cleaning of slots and rewinding with correct size / gauge super enamelled insulated copper wire including providing proper insulation, varnishing, drying, reassembling

Ball bearings (drive /non drive )

Cooling fan blade

Terminal Box.

Terminal connectors 3 phase.

Electro dynamically balanced bronze impellor

Shaft (mild steel)

Gland sleeve

Water seal

Air lock nozzle brass

Shaft coupling

Taking up unserviceable centrifugal non clog submerciable sewage pump set 5.0 HP from sewage sump by bailing out the water, disconnectin ,declamping , transport to authorised work shop and re-installation in the sump,testing complete on replacement of Gasket,cable protector kit,terminal block with terminal plate,'O' rings,seal monitors,safety rings,cable end cap,Painting as required and service charges for smooth function complete all as directed. (Make:- KSB ) .Note: 1.Replacement of Winding,insulating oil, bearings,Seal, Sensor,Shaft etc., shall be measured and paid for separately under relevant items of this schedule. 2.The labour element involved in replacing of parts shall be deem to have been included in this item

Supply only the following parts of centrifugal non clog submerciable sewage pump set 5.0 HP capacity :-

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

Bearing (Top,bottom & RR)

Mechanical seal lower and upper

Temperature Sensor

Moisture sensor

Rotor Shaft

Insulating oil as per manufacturer recommended grade

Repairing centrifugal non clog sewage pump set by replacing of the worn out parts including packing, refixing and testing of motor of capacity 1.0/2.0 HP complete etc., all as specified and directed. Note: 1.Spare parts/ accessories like shaft, rubber flap, bearings, gland packing, rubber packing and sleeve etc., shall be measured and paid for separately under relevant items of this schedule. 2.The labour element involved in replacing of parts shall be deem to have been included in this item

Supply only the following parts of 1.0/2.0 HP capacity centrifugal non clog sewage pump set

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

Shaft

Rubber flap

Ball bearing

Gland packing

Rubber packing

Sleeve

Electro dynamically balanced bronze impellor

Repair and servicing of air blower twin type capacity 50m3/hr, head 0.3 Kg/m2 including servicing the equipment complete by replacing worn out parts, bushes, gaskets and filling of oil all as specified and as directed. . Note: 1.Supply only of spares shall be measured and paid under relevant item of this schedule. 2.The labour element involved in replacing of parts shall be deem to have been included in this item

Supply of following parts for air blower:-

Impeller

Motor bearing

Air compressor oil, recommended grade. Make: Servo/Castrol/HP

Repair and servicing the equipment complete by replacing worn out spares complete for hypo chlorine solution dosing pump electronic metering type capacity 0-12 LPH, head 20 meter all as specified and as directed. Note: 1.Supply only of spares shall be measured and paid under relevant item of this schedule. 2.The labour element involved in replacing of parts shall be deem to have been included in this item

Supply of following parts for chlorine solution dosing pump:-

Dosing pump low level switch

PVC foot valve

Dosing pump PVC non return valve

Repair and including servicing complete by replacing worn out parts of sludge filter press machine for dewatering sludge from the SBR reactor through the sludge valve, plate and frame type all as specified and as directed. . Note: 1.Supply only of spares shall be measured and paid under relevant item of this schedule. 2.The labour element involved in replacing of parts shall be deem to have been included in this item

Supply of following parts for sludge filter press machine:-

Center feed pipe assembly

Filter press cloths

Gaskets

Repair,and changing of filter media and supply of all spares and accessories complete for multi grade sand filter with multi port valve, type down flow, MOC FRP, diameter 600mm, inlet outlet size 50 mm, media gravel and sand, pressure gauge 02 Nos inlet and outlet all as specified and as directed.

Repair, and supply of all parts and accessories complete for vertical self supporting Activated carbon filter fabricated from FRP type down flow diameter 600 mm inlet outlet size 50 mm, distribution system header and lateral, media activated carbon of 1000 iodine value, MPV valve all as specified and as directed.

Repair and servicing the equipment complete by replacing worn out parts of Diffused aeration system with external control with valve with individual down comer Cap 7.5-12 m3/hr, max pressure 0.6 Kg/cm2, fine bubble membrane diffuser, SS 304 pipeline submerged MS class B including supply and fixing of all spares including all necessary piping, valves, air diffuser, air distribution grid and decanter all as specified and as directed.

Cleaning of Bar screen chamber 4.275 Cum capacity having one compartment by specialized water tank clean process all as described below and including writing the details like 'Cleaned ON ', "sump capacity" with white enameled paint over black painted surface on sump (02 Nos,) all as specified and as directed.

Dewatering using submersible pump/bailing out of water to dispose the minimum level of dirty water from the tank

Cleaning the tank bottom, walls and ceiling using high pressure water jet to dislodge the algae calcinations, dirt etc.

Disposing the dirt water sludge etc., using specially designed sludge removal pump.

Cleaning the tank inside thoroughly by using industrial grade vacuum pump to make the tank inside free from dirt, algae and sludge etc.

Treating the inside walls, bottom, ceiling of tank including all nooks and corners by using and spraying anti bacterial agent such as Hydrogen peroxide (bio degradable) for disinfection of tank inside

Total disinfection and sterilization of tank hygienically cleaned and bacteria free and safe for storage of water

All as per item No 35.above but SBR tank 137.5 Cum capacity(01 No) and 20 Cu m (01 Nos)

All as per item No.35 but chlorine contact tank 84 Cum capacity (01 Nos) and 12 Cu m (01 Nos)

All as per item No35 but treated water tank 67.2 Cum capacity (01 Nos) and 20 Cum (01 No)

Supply only sodium hypochlorite solution with active chlorine content 6gm / ltr conforming to IS 11673 in 35 ltrs capacity container all as specified and as directed.

Supply only high strength calcium based granular chlorination chemical(Grade I)(Packing in 45 KG)of following specifications:- (a) Description- Whitish granules (b) Granular Size(Mesh passing through-100BSS): 1.1(+0.1)%(c) Other insoluble calcium salts: 1.1(+0.1)% (d) Requirement must be 140-200gms per one lac liter of water to achieve 1PPM at injection point all as specified and as directed.

Supply only bleaching powder suitable grade conforming to IS specification No 1065/1989 with minimum available chlorine percentage of mass 33.5% and slab percentage Nil all as specified and as directed.

Supply and fix DOL starter 3 phase 440 volts with relay range up to 16 amps including taking down old unserviceable DOL starter all as specified and as directed.Make : L&T/Minilec/Siemens

Supply and fix star delta starter with single phase protection and relay range from 13-32 amps 3 phase 440 volts including taking down old unserviceable starter all as specified and as directed..Make : L&T/Minilec/Siemens

Supply and fix Contactor for Star Delta starter 440 volts, 50 Hz, 16 Amps to 32 Amps , 3 phase, AC, induction motor including taking down existing unserviceable all as specified and directed. Make: L&T/Siemens/ABB.

Supply and fix single phase preventer including taking down existing unserviceable all as specified and directed ..Make : L&T/Minilec/Siemens

Supply and fix electronic overload relay suitable for 5 to 15HP submersible pump including taking down existing unserviceable all as specified and directed . Make: L&T /Siemens/ABB.

M&L for replacement of chemical dosing pumps, single phase 230 volts, 50Hz with connecting wire,PVC tubes for plant to pumping the solution complete all as specified and directed

Supply and replace FRP chemical dosing storage tanks 150 litres capacity pressure up to 10Kg/sqcm suitable to fix the existing dosing pumps all as directed.

Material and Labour for Plain Cement Concrete (1:3:6) type C1 (Using 20mm graded aggregate) to making good the disturbed hard standing area/road and match with the existing surroundings complete all as specified and as directed.

Surface dressing not exceeding 15 cm deep and getting out in soft/loose soil (grass or brush cutting) including cutting of grass vegetation around pump house and removing excavated material(soil) and rubbish to out side MD land all as specified and as directed.

Material and labour for structural steel work as in base plate for pump sets with nut bolts washers welding and necessary fabrication work in any situation valve chamber covers and similar items etc as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint including taking down the existing unserviceable items complete all as specified and directed.

S&F 20 Watt LED light fittings, basic all purpose, surface and wall mounted LED batten with poly carbonate housing and integrated electronic driver complete . Make : Havel's (cat No.- LUMILINEBS20WLED 865SPCWH or Equivalent from Philips/Wipro.

Supply and fix 45 Watt LED Street light luminaries made-up of pressure die-cast aluminum housing, IP-66 with high powered LEDs as light source and electronic driver. complete fixed on pole/wall including pipe bracket, bolt nuts etc complete. Make : Havel's (cat No.- ENDURASUNDOWNSL 45WLED765PASYBOPC or its Equivalent from Philips/Wipro.

Supply and fix 70 Watt LED energy saving environment friendly long life, flood light luminaries made-up of pressure die-cast aluminum housing, with high powered LEDs as light source and electronic driver complete fixed on pole including bolt nuts etc complete. Make : Havel's (cat No. JETAADORNFLS 70WLED 757SSYMTOTG or its Equivalent from Philips/Wipro.

Material and labour for Cubical type name board/Sign Board of size 1.2x1.0x0.30m made out of GI sheet 2mm thick and white acrylic sheet 3mm thick for front side with suitable size angle iron support and 04 Nos 12 watt LED lamps with lamp holder and all accessories fixed inside the board and wiring complete including writing and stick with colored stickers of suitable size for name of plant, location, unit etc. In capital letter on front side board as directed including erected on angle iron pole 04 Nos of size 50x50x6mm, 1.80mtr height duly painted with two coats of synthetic enamel paint over a coat of red oxide and necessary PCC foundation 1:3:6 with 20mm graded stone aggregate all as directed by Engineer-in-Charge /all as per trade practice.

Preparation of old painted steel surface and cleaning the surface thoroughly and applying two coats of synthetic metallic grey enamel paints with spray gun and writing the SM/MES No complete all as specified and directed, for electric driven centrifugal pump and motor set of capacities up to 15 HP of any make and including suction and delivery pipes all as specified and as directed.

M&L for earthing complete with GI earth plate electrode 600x600x6mm thick buried directly in ground (earth pit not less than 2.25 meter below normal ground level) with top edge of the plate not less than 1.5 mtr below ground level connected with earth lead of 32x6 mm GI strip by means of bolts, nuts check nuts and washers of galvanized including GI protection pipe40mm dia light grade all as shown in electrical plate No.1 of SSR Part I including necessary excavation and earth work,PCC 1:3:6 type C-1 chamber,RCC chamber cover 50mm thick in cement concrete 1:2:4 type B-1 with8 mm dia TMT bar 100mm centre to centre with suitable handle, watering pipe 20mm dia light grade pipe with funnel, charcoal and common salt connected to panel all as specified including testing and commissioning on completion complete all as specified and as directed.

G.L.THIRUMALAI NAIDU AND COMPANY

SWIFTTECH ENGINEERS INDIA PVT LIMITED