REPAIR AND MAINTENANCE OF AIRBLOWERS PUMPS CONTROL VALVES CONTROL ELECTRICAL PANELS FILTER MEDIA FLOW METERS MS PIPE STPS AND ALLIED WORK IN THE AREA OF AGE U WATER SUPPLY II UNDER GE U WS DELHI CANTT 10

Amount

Labour for dismantling, disconnecting the Air Blower twin lobe positive displacement type of pressure upto 0.8Kg/Cm2 and capacity upto 800 Cum/hr including disconnecting from chanel frame and electrical panel for repair of Gear Box, refitting of gear box after oiling, greasing, alingment of pump set and re-fixing/ assembling testing to make it functional complete inciuding cleaning of all dirt, dust replacing the Air Filter with similar type and make of New filter etc complete all as specified and directed including transportation to workshop for repair

Supply and fixing in replacement following parts in the twin lobe positive displacement type and pressure rating upto 0.8Kg/cm2 of of existing make at site

Replacement of Pully V Belt SPB-1800/existing at site

Ball Bearing 6311/C3

Roller bearing 3213A or existing at site

Set of Gasket of suitable size for the compressor existing at site

Gear set of suitable size for the compressor existing at site

Oil seal of suitable size for the compressor existing at site

Oil level glass of suitable size for the compressor existing at site

Suction air filter of suitable size/type for the compressor existing at site

Air compressor shaft welding , turning , grinding required during overhauling of compressor

Bearing tapper bush for roller bearing 22213 EK/C3 or of suitable size for the compressor existing at site

Outer distance bush of suitable size for the compressor existing at site

Pressure ring of suitable size for the compressor existing at site

Asbestos graphite packing(casing cover) of suitable size for the compressor existing at site

Asbestos graphite packing(stuffing box) of suitable size for the compressor existing at site

Disconnecting electric comnnections from LT control pannel and starter of Non clogging submercible pump set of any size 3 HP to 20 HP and removing the pipe line connections from discharge side and taking out sub pump set alongwith, column pipe from Sewage sump/Well/Tank etc with the help of chainpully including transportion to wksp for repair including replacement of rusted nuts bolts. rubber gasket complete all as specified and directed. NOTE:- 1. The quoted rates will include for the charges wherever hydra is required for pulling out the pumps out. 2. The contractor will give a guarntee for 6 months for the proper functioning of the pumps and its allied pipe connections/Electrical connections. 3. Burn out/Defective Non clogging pumps/Submercible pumps will be open at site for the defects and material required for replacement in writing to Engr-in-Charge.

Labour for opening the non clogging sub pump set, repairing, rewinding and assembling the pump set including insulating material of any size 3HP to 10 HP capacity complete all as specified and directed(Copper winding wire and other spare part required for repairing will be measured and paid under relevant item as supply only) by Engr-in-charge

Labour for openning the non clogging sub pump set, repairing, rewinding and assembling the pump set including insulating material of any size 12.5HP to 20 HP capacity complete all as specified and directed (Copper winding wire and other spare part required for repairing will be measured and paid under relevant item as supply only)by Engr-in-charge

Supply only copper rewinding wire of exsting gauge for non clogging pump sets/ submercible pump Sets/ Induction motors complete all as specified and directed

Supply and fixing in replacement of following spare for non clogging sub Pump set cap 3 HP to 10 HP

SS roter sleeve of existing at site

SS roter shaft ASS 410 or of existing at site

Water seal of existing at site as per pump design

CI Lower Housing chamber of existing at site

CI upper housing chamber of existing at site

Connetion plate of existing at site

Remetaling of rotor & turning/grinding

Gun Metal suction ring of existing at site

Gun Metal Impeller of existing at site

Stainless Steel stud with nut of existing at site

Impeller nut as per existing at site

Impeller key as per existing at site

Jointing of submercible cable

Painting of submercible pump set with one coat of red oxide and two coat of synthetic enamel paint

CI suction chamber perfectly suitable as per existing at site

Repairing of stamping of stator

Mechanical seal set upper and lower

Jointing of cable kit without float switch

Jointing of cable kit with float switch

CI suction plate as per existing at site

O ring set as per existing at site

Insulation kit as per sample

Ball bearing 6306ZZ

Roller Bearing 3308

Roller Bearing NU 305

Temperature sensor as per existing at site

Moisture sensor as per existing at site

Supply and fix in replacement of following spare for Non clogging submercible Pump set cap 12.5 HP to 20 HP

Lifting Chain heavy duty 10/12 mm Stainless Steel

Mechanical seal set upper and lower

Cable assembly kit

Lubrication oil suitable for lubricating pump

Motor casing cover as per existing at site

impeller Bolt & Nut Stainless Steel as per existing at site

Intermediate casing as per existing at site

Bolt with square Nut for CSG as per existing at site

Bearing sleeves as per existing at site

Thread Bush as per existing at site

Bearing 6309 2RS1/C3

Bearing 6306 2 R S1/C3

Bearing 3212

Bearing NU-207

Terminal connection plate heavy duty as per existing at site

Moisture sensor as per existing at site

cable protection tube valcunized

Rubber diaphram as per existing at site

Labour for dismantling, disconnecting the centrifugal/sewage pump set from foundation and fixing after repairing rewinding and assembling the pump set including insulating material of any size ,testing complete up to upto 15 HP complete all as specified and directed including transportation to workshop for repair

Supply and fixing in replacement the following items for DB model pumps of capacity upto 15 HP

Impeller CI/SS as per existing at site

Pump shaft SS AISI410 or as per existing at site

Mechanical seal for pump shaft AISI-410 or as per existing at site

Wear ring as per existing at site

Gland CI as per existing at site

Ball bearing 6307ZZ

Bearing housing NDE as per existing at site

Shaft Sleeve SS as per existing at site

Impeller nut as per existing at site

lock nut as per existing at site

Gland packing suitable for existing pump as per mfg recommendation

Set of O rings as per existing at site

Liquid deflector as per existing at site

Gland Eye Bolt with nut SS as per existing at site

Impeller Key as per existing at site

Oil seal as per existing at site

Mechanical seal for support plate as per existing at site

Bent plug as per existing at site

Set of gasket as per existing at site

Support foot as per existing at site

Lantern ring as per existing at site

coupling Key CS as per existing at site

Supply and fixing in replacement the following parts for Decantor gear box installed at Baird Place STP with SBR Technology

Bearing of size 758A-32208

Bearing of size 7513A-32213

Oil seal of size 40mm x 60mm x10mm or as per existing at site

Oil seal of size 65mm x 90mm x12mm or as per existing at site

Stainless Steel Ellen bolt 8x50 or as per existing at site

Set of gasket as per existing at site

Screw thread sleeve 80 x 150mm repair

Stainless Steel pin as per existing at site

Gun Metal Gear box repair

Main Shaft repair and balancing

S & F in replacement of flexible suction hose pipe heavy duty ISI marked of size 65 mm outer dia complete all as specified and directed

S & F in replacement of flexibl suction hose pipe heavy duty ISI marked of size 90 mm outer dia complete all as specified and directed

Supply and fixing in replacement of cloth of sludge centrifuge machine of capacity 1 cum/hr, basket type at STP Kabul Line as per existing sample complete all as specified and directed

Supply & pouring MBBR/FAB PVC media model PP22 effective specific surface area 400m2/cum of height 15mm and dia of 22mm complete all as specified and directed.

Material and labour for quartz silica sand of 32 -64 grade media size.

Material and labour for quartz silica sand of 16 - 32 grade media size.

Material and labour for quartz silica sand of 8 - 16 grade media size.

Material and labour for quartz silica sand of 4 - 8 grade media size.

Material and labour for activated carbon filter media IV1000.

NOTE- for item no. 15 to 20 ,the cost for removal the old material from site to the location complete all as specified and directed deemed to be included in item.

Taking out complete pebbles from the filter and re-filling the same after washing/cleaning throughly.

S & F in replacement of Air dispersion system in equilisation tank/MBBR tank of STP ,capable of handling 3 - 5 cfm of air with oxygen transfer efficiency of 3 - 4% per meter water depth of following type:-

Disc type coarse bubble diffuser of size 150mm dia. MOC:silicon

Tube type fine Bubble diffuser of size 63 mm Dia. X 600mm lomg, MOC: Silicon.

M & L in replacement of Providing and filling post/frame work of stainless steel, grade 304 pipes including braces of stainless steel, plates, angle, flats, tubular sections etc including cutting, hoisting fixing with Argon Gas welding, stain finish, buffing polishing etc complete with necessary holes, nuts, bolts, caps and anchor plates of stainless steel as per design provided complete all as specified and directed.

Supply and fixing electromagnetic water flow meter suitable for pump discharge 25 cum/hr and line size 100mm bore at STPs including electrical connection complete all as specified and directed.

Supply and fixing electromagnetic flow meter suitable for pump discharge 50 cum/hr and line size 150mm bore at STPs including electrical connection complete all as specified and directed.

Supply and fixing electromagnetic water flow meter suitable for pump discharge 90 cum/hr and line size 100mm bore at STPs including electrical connection complete all as specified and directed.

Supply and fixing Air flow meter,model suitable for max flow rate 4000-8000 lpm constrution material;SS304,Seal material P.T.F.E/SILICON at STPs including all fitting complete all as specified and directed.

Excavation in trenches in any type of soil not exceeding 1.5 meter wide and not exceeding 1.5 metre deep for taking out / laying of pipe lines and getting out and forming bottom surfaces to required gradient complete all as specified and directed.

Returning, filling in, including spreading leveling, watering and well ramming in layers not exceeding 25 centimeter thick in layer in any type of soil complete all as specified and as directed.

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

Material and labour for Brick protection with sub class ‘B’ bricks old size, laid dry, flat over cable, perpendicular across the cable in trenches complete all as specified and directed.

Sand cushioning with fine dry sand in trenches, for cable protection complete all as specified in clauses 19.75 of MES schedule part-I, complete all as specified and directed.

Manually trench drill (bockey) up to 150mm dia of pipe complete all as specified and as directed

Supply and lay in replacement of MS Pipes heavy grade with all fittings laid in floors or fixed to walls and ceilings including welding as required at site and removing old pipe to MES store yard of following bore. Note :- Rate quoted shall deemed to be included for MS flanges and flange joints.

150 mm dia pipe

125 mm dia pipe

100 mm dia pipe

80 mm dia pipe

65 mm dia pipe

40 mm dia pipe

Supply & Fixing in replacement of butterfly valve of following size/bore conforming to IS 13095 complete all as specified and directed

100 mm bore

125 mm bore

150 mm bore

80 mm dia

50 mm dia

40 mm dia

Supply & Fixing gun metal gate valve with iron wheel head screwed both ends for iron pipe and fixed, bore of pipe of following sizes complete all as specified and directed

15 mm dia

20 mm dia

25 mm dia

50 mm dia

Material and Labour for CI foot valve flanged type including nuts bolts washers and rubbers 150mm dia confirming to IS-4038 complete all as specified and directed including taking out the old unserviceable foot valve

All as per item No 38.00 above but size 100 mm

All as per item No 38.00 above but size 80 mm

All as per item No 38.00 above but size 50 mm

Supply and fixing man hole cover of UG/semi UG Sump tanks of any size made out of 3 mm thick MS sheet and angle iron 40x40x6 mm duly welded and having handle on top to open and close the cover welding two butt higes including painting with two coat of synthetic enamelled paint over a coat of primer complete all as specified and directed.

Material and Labour for fabrication of base frame with MS Channel MC-25/50/75/100/125 for foundation of centrifugalpump set/steps/General Frame work at STP incl one coat of red oxide and two coat of black enamel paint and incl taking out of old base frame and grouting new one existing with all nuts and bolts complete all as specified and directed.

Supply and fixing in replacement of XLPE insulated, armoured heavy duty electric cables with aluminium conductor, 11000 volts grade, cross sectional area 25 sqmm, 3.5 core complete all as specified and directed

Supply and fixing in replacement of XLPE insulated, armoured heavy duty electric cables with aluminium conductor, 11000 volts grade, cross sectional area 35 sqmm, 3.5 core complete all as specified and directed

40 mm bore GI light grade pipe for protection of cable, laid in trenches / under floors / Paths /along poles/ equipments etc complete all as specified and directed

Supply & Fixing in replacement of MCCB 200 Amp 415 Volts, 25 KA, 4 pole, 50 Hz, with adjustable thermal & fixed magnetic setting

Supply & Fixing in replacement of MCCB 100 Amp 415 Volts, 25 KA, 4 pole, 50 Hz, with adjustable thermal & fixed magnetic setting

Supply & Fixing in replacement of autometic star - delta starter complete with cotactor(18A) and over load relay of range 12-18A for & upto12.5HP pump

Supply & Fixing in replacement of autometic star - delta submersible pump starter complete with cotactor(25A) and over load relay of range 17-25A for 15HP submersible pump

Supply & Fixing in replacement of standerd autometic star - delta submersible pump starter complete with cotactor(32A) and over load relay of range 23-32A for 25HP submersible pump

Supply & Fixing in replacement of Pneumatic Timer Block suitable for mounting on contactor (9A-630A) type CPT1A complete all as specified and directed

Supply & Fixing in replacement of 3 pole power contactor MNX32 Type contactor (32A-55A) complete all as specified and directed.

Supply & Fixing in replacement of 3 pole power contactor MNX40 Type contactor (40A-55A) complete all as specified and directed.

Supply & Fixing in replacement of 3 pole power contactor MNX25 Type contactor (25A-45A) complete all as specified and directed.

Supply & Fixing in replacement of 3 pole power contactor MNX18 Type contactor (20A-32A) complete all as specified and directed.

Supply & Fixing in replacement of 3 pole power contactor MNX12 Type contactor (13A-25A) complete all as specified and directed.

Supply only of thermal over load relay type MN relay range 28-42 Amps complete all as specified and directed.

Supply only of thermal over load relay type MN relay range 20-32 Amps complete all as specified and directed.

Supply only of thermal over load relay type MN relay range 13-21 Amps complete all as specified and directed.

Supply only of FRP construction solution preparations cum settling Tank with level gauge, lid, inlet / outlet connection, drain connection and fitted with speed reducer, motor and SS agitator of capacity 100 Ltr complete all as specified and directed.

Supply & pouring Compressor Oil in air blower at STPs complete all as specified and directed

Supply & Fixing in replacement of following parts for Ozone generator installed at Baird place STP.

Supply & fixing in repair/replacement of Ozone Oxygen Generator -9 Model -OZ INDIA -250 complete all as specified and directed comprising of following work/replacement of parts:- NOTE:- The servicing and replacement of spares will be exclusively done by OEM i.e. M/s OZ-India Greater Noida only

Cleaning & Re-wiring complete all as specified and directed

Ozone Oxygen Generator 5 + 5 = 10 LPM

Ozone Card

Ozone Transformer

Ozone High Voltage Electrode

Ozone Control Knob

Preventor 3 Phase

Supply only PVC insulated, sheathed, Copper conductor flexible cable, 1100 volts grade Heavy Duty, cross sectional area 4 sqmm, Four core round flexible complete all as specified and directed.

Supply only PVC insulated, sheathed unarmoured, Copper conductor flexible cable, 1100 volts grade Heavy Duty, cross sectional area 10 sqmm, Seven core round flexible complete all as specified and directed.

Supply only of PVC insulated sheathed copper conductor flexible cable 1100 volts grade heavy duty of size 35 sqmm nominal cross section area single core complete all as specified and directed.

Supply only of PVC insulated sheathed unarmoured copper conductor flexible cable 1100 volts grade heavy duty of size 50 sqmm nominal cross section area single core

Supply & only 3 pole power contactor ML-2, 32 Amps,415/440, 50 Hz suitable for fixing in exising panel complete all as specified and directed.

Material and labour for painting on steel and iron surfaces with one coat of synthetic enamel paint as per existing colour scheme or pattern or as per standard after preperation of old painted surface of any description over 10cm in width or girth complete all as specified and directed.

Supply & fixing in replacement of heat resistance , weather proof agro shed net for covering of tanks complete with fixing arrangement arround the tank complete all as specified and directed.

Earthing complete with galvanised steel earth plate electrode 600x600x6mm burried directly in ground not less than 2.25 mtr deep below normal ground level with top edge of earth plate not less than 1.5mtr below normal ground level connected to the Galvanised iron strip 32x6mm size by means of bolts ,nuts,check nuts and washers of galvanised iron and 32x6mm GI strip procted by provision of GI light grade pipe 40 mm bore incl provision of concrete pit in PCC1:2:4 type B-i , using 20 mm graded stone aggregates with 40 mm thick cover of RCC (1:2:4) reinforced with XPM weight not less than 4 Kg /Sqm and 6mm dia bar handle ,excavation and earth work in any type of soil ,charcoal dust and salt light grade GI watering pipe 20 mm bore with funnel and wire mashand medium grade GI protection pipe 15mm bore 5 Mtr long and GI strip upto main earthing of pole complete all as shown in electrical plate No 3 of MES Sch 2009 Part-I complete all as specified and directed .

Main earthing strip from earth plate electrode to test point upto length of 7.5 meters length shall deem to be included in the unit rate quoted against this item .

On testing after completion if the desired resistenance is not obtained the contrator shall redo the earthing without any extra cost to the department .

An amount of Rs 242348.50 shall be deducted from BOQ on account of schedule of credit

CHOUDHARY ELECTRICAL

B.R. Enterprises