REPAIR/MAINTENANCE OF PUMP MOTORS and CONNECTED WORKS AND REPAIR/REPLACEMENT OF FILTER MEDIA and MAINTENANCE WORKS AT AF STN TEZPUR UNDER GE (AF) TEZPUR.

Amount

Disconnecting electrical connections of mono block/ booster pump set with motor of capacity 10 HP, 3 Phase, 415 Volts, lifting and removing motor form its existing foundation to the location (inside/outside of building) where directed by the Engr-in-Charge, dismantling parts of the motor carefully, checking, segregating serviceable and unserviceable parts,cleaning the serviceable parts thoroughly as per OEM's reccommendations, heating, drying, varnishing,insulating the windings with OEM approved insulating materials including replacement of unserviceable parts as required and including reassembling the motor, painting external surface with two coats of synthetic enamel paint after necessary preparation of surface,marking SM, MES or Srl No.,installing to its existing foundation, commissioning, connecting up and testing complete as specified and directed. Note:-Spare Parts for replacement will be measured and paid seperately under respective items of this BOQ here in after.

All as per Serial Item 1 Here in Before but for mono block/ booster pump set with motor of capacity 15 HP, 3 Phase, 415 Volt,complete as specified and directed. Note:-Spare Parts for replacement will be measured and paid seperately under respective items of this BOQ here in after.

Disconnecting suction and delivery pipeline of pumps of capacity 10000 GPH at a head of 100 feet (Make Kirloskar/Beacon), lifting and removing from its existing foundation to the location (inside/outside building) as directed by Engr-in-Charge,dismantling carefully the pump completely checking and segregating serviceable and unserviceable parts,cleaning/washing and servicing the serviceable parts as per OEM's reccommendations, replacing unserviceable parts, reassembling the pump completely including painting external surface of pump with MS foundation with two coats of synthetic enamel paint after preparation of surface and marking of SM, MES or Ser No,installing to its existing foundation,connecting up, testing and commissioning,complete all as specified and directed. Note:-Spare Parts for replacement will be measured and paid seperately under respective items of this BOQ here in after.

Supply Only Chrome Steel Ball Bearing No. 6306. (Make: TATA/NBC/SKF)

Supply Only Chrome Steel Ball Bearing No 6307. (Make: TATA/NBC/SKF)

Supply Only Chrome Steel Ball Bearing No 6308. (Make: TATA/NBC/SKF)

Supply Only Chrome Steel Ball Bearing No 6309. (Make: TATA/NBC/SKF)

Supply Only Chrome Steel Ball Thrust Bearing No 51220. (Make: TATA/NBC/SKF)

Supply Only motor terminal box suitable for 10/15 HP, 3 Phase, 415 Volts electric motors.

Supply Only Shaft Key

Supply Only Coupling for pump motor (P45)

Supply Only Coupling for pump motor (D-50/70/80)

Supply Only Bolt/Studs for coupling of pump motor.

Supply Only rubber flange for coupling of pump motor (PX 45/ PX 50) .

Supply Only CI flange for coupling of pump motor (PX 60/ PX 80) .

Supply Only brass impeller suitable for pump with motor of capacity 10 HP.

Supply Only brass impeller suitable for pump with motor of capacity 15 HP.

Supply Only steel shaft suitable for pump with motor of capacity 10 HP.

Supply Only steel shaft suitable for pump with motor of capacity 15 HP.

Supply and Fix in repairs, spare coil ,type MNX 25 suitable for 2 pole power contactors with AC-3 rating 25 Amps and AC-1 rating 45 Amps, complete all as specified and directed. [Cat No.CS94127 of Make “L&T” or equivalent Model of Make Siemens/ Schneider / ABB.]

Supply and Fix in repairs, 2 pole power contactors conforming to IS / IEC 60947-4-1 & IEC 60947-4-1, Type MNX 18-2P, AC-3 rating 18 Amps and AC-1 rating 30 Amps, auxillary contacts 1 NO, complete all as specified and directed. [Cat No.CS90236 of Make “L&T” or equivalent Model of Make Siemens/ Schneider / ABB.]

Supply and Fix in repairs, 2 pole power contactors conforming to IS / IEC 60947-4-1 & IEC 60947-4-1, Type MNX 25-2P, AC-3 rating 25 Amps and AC-1 rating 45 Amps, complete all as specified and directed. [Cat No.CS90240 of Make “L&T” or equivalent Model of Make Siemens/ Schneider / ABB.]

Supply and Fix in repairs, 3 pole power contactors conforming to IS / IEC 60947-4-1 & IEC 60947-4-1, Type ML 2, AC-3 rating 32 Amps and AC-1 rating 40 Amps, auxillary contacts 2 NO + 2 NC, complete all as specified and directed. [Cat No.SS90701 of Make “L&T” or equivalent Model of Make Siemens/ Schneider / ABB.]

Supply and Fix in repairs, 3 pole power contactors conforming to IS / IEC 60947-4-1 & IEC 60947-4-1, Type ML 3, AC-3 rating 40 Amps and AC-1 rating 45 Amps, auxillary contacts 2 NO + 2 NC, complete all as specified and directed. [Cat No.SS90721 of Make “L&T” or equivalent Model of Make Siemens/ Schneider / ABB.]

Supply and Fix in repairs, Electronic Timers, Type ST 100, 240 /415V, 50Hz, Time-Delay 3 - 30 secs/12 - 120 secs,operating voltage band of 160V to 500V with Star-Operation LED display to indicate Star to Delta changeover, complete all as specified and directed. [Cat No.ST80328OOOO/ST80329OOOO of Make “L&T” or equivalent Model of Make Siemens/ Schneider/ ABB.]

Supply and Fix, Fully Automatic Star Delta Motor Starter in sheet steel enclosure, suitable for Pump/Motor 3Ø, 415V,50Hz,10 HP, with over load relay range 6-10 Amps,coil voltage 360/440 V, type MK1,all as per Cat. No SS96255COVO/SS96255POVO of Make ‘L&T’ or Equivalent Model of Make Siemens/Crompton Greaves/BCH (Bharat Cuttler Hammer), complete all as specified and directed.

Supply and Fix, Fully Automatic Star Delta Motor Starter (With Wideband Coil) in sheet steel enclosure, with SPP features, for Maximum Submersible Pump Rating at 3Ø, 415V, 50Hz,15 HP,11 KW, with over load relay range 11-18 Amps, type MU-G15 FASD,all as per Cat. No CS94091SOCO of Make ‘L&T’ or Equivalent Model of Make Siemens/Crompton Greaves/BCH (Bharat Cuttler Hammer) complete all as specified and directed.

Disconnecting electrical connections carefully from the penal board and lifting of submersible pump motor of 15HP capacity from existing bore well including column pipe with all accessories and removing the same to the location (inside/ outside building),complete all as directed.

Dismantling carefully submersible pump completely of capacity 15 HP,1320 LPM at a head of 63 Metres (Make KSB),checking and segregating serviceable and unserviceable parts,cleaning/washing and servicing the serviceable parts as per OEM's reccommendations, replacing unserviceable parts, reassembling the pump completely including painting external surface of pump with two coats of synthetic enamel paint after preparation of surface,connecting up with all accessories, lowering in the existing bore well, testing and commissioning,complete all as specified and directed. Note:-Spare Parts for replacement will be measured and paid seperately under respective items of this BOQ here in after.

Supply Only,Neck Ring for submersible pump.

Supply Only,GM Bushing for shaft of submersible pump.

Supply Only, Key suitable for shaft of submersible pump.

Supply Only, SS sleeve for shaft of submersible pump.

Supply Only,pump cap for submersible pump.

Supply Only, copper washer for submersible pump.

Supply Only, nut&bolt/stud suitable for bowl of submersible pump.

Dismantaling of parts,removing burnt out windings with insulating materials, cleaning throughly internally and externally, rewinding motor for centrifugal/mono block pump motor (Make:Kirloskar/Beacon) of capacity 10 HP,3 Phase,415 V, 50 Hz, with super enamelled copper wires of existing size/gauge including provision of all insulating materials and varnishing, lubrication of bearing / bushes using fresh lubricant all as per OEMs reccommendations, replacement of defective parts,re-assembling,including testing and commissioning,complete all as specified and directed.

Dismantaling of parts,removing burnt out windings with insulating materials, cleaning throughly internally and externally, rewinding motor for centrifugal/mono block pump motor (Make:Kirloskar/Beacon) of capacity 15 HP,3 Phase,415 V, 50 Hz, with super enamelled copper wires of existing size/gauge including provision of all insulating materials and varnishing,lubrication of bearing / bushes using fresh lubricant all as per OEMs reccommendations,replacement of defective parts,re-assembling,including testing and commissioning,complete all as specified and directed.

Dismantaling of parts,removing burnt out windings with insulating materials, cleaning throughly internally and externally, rewinding motor for submersible pump motor (Make:KSB) of capacity 15 HP,3 Phase,415 V, 50 Hz,with PVC insulated copper wires of existing size/gauge including provision of all insulating materials,lubrication of bearing / bushes using fresh lubricant all as per OEMs reccommendations,replacement of defective parts,re-assembling,including testing and commissioning,complete all as specified and directed.

Dismantaling of parts,removing burnt out windings with insulating materials,cleaning throughly internally and externally, rewinding motor for submersible pump motor (Make:KSB) of capacity 20 HP,3 Phase,415 V, 50 Hz,with PVC insulated copper wires of existing size/gauge including provision of all insulating materials,lubrication of bearing / bushes using fresh lubricant all as per OEMs reccommendations, replacement of defective parts,re-assembling,including testing and commissioning, complete all as specified and directed.

Overhauling/servicing of Granular Chlorine Solution Dosing System comprising of tank with agitator with shaft and blade mounted on tank with high pressure single head gear motored adjustable dosing pump with non metallic liquid ends including lead tubing connecting nuts,injection check valves,clay weight ferrule,suction and discharge tubing, spring loaded anti-syphon valve, foot valve etc.,as per OEM's reccommendations,including re assembling the dosing system,including testing and commissioning, complete all as specified and directed. Note:-Spare Parts for replacement will be measured and paid seperately under respective items of this BOQ here in after.

Supply Only, oil seal for dosing pump motor.

Supply Only, head screw for dosing pump motor.

Supply Only, spacer for dosing pump motor.

Supply Only, alter head screw for dosing pump motor.

Supply Only, spring (small) for dosing pump motor.

Supply Only, spring (retention) for dosing pump motor.

Supply Only, diaphagm for dosing pump motor.

Supply Only, electronic pulser unit for dosing pump motor.

Supply Only, transformer for dosing pump motor.

Supply Only, shaft for dosing pump motor.

Supply Only, inlet/outlet nozzle for dosing pump motor.

Disconnecting electrical connections of jet pump set with motor of capacity 1 HP, Single Phase, 240 Volts, lifting and removing motor form its existing foundation to the location (inside/outside of building) where directed by the Engr-in-Charge, dismantling parts of the motor carefully, checking, segregating serviceable and unserviceable parts,cleaning the serviceable parts thoroughly rewinding of burnt out windings with super enamelled copper wires of existing size/gauge including provision of all insulating materials and varnishing all as per OEM's reccommendations and including replacement of unserviceable parts as required and including reassembling the motor, painting external surface with two coats of synthetic enamel paint after necessary preparation of surface,marking SM, MES or Srl No.,installing to its existing foundation, commissioning, connecting up and testing complete as specified and directed. Note:-Spare Parts for replacement will be measured and paid seperately under respective items of this BOQ here in after.

Supply Only Chrome Steel Ball Bearing No. 6201/6202. (Make: TATA/NBC/SKF)

Supply Only oil seal for jet pump set.

Supply Only PVC cooling fan for motor of jet pump set.

Supply Only capacitor for motor of jet pump set 15-25 mfd, 440 V conforming to IS:1709.

Disconnecting electrical connections of monoblock pump set with motor of capacity 7.5 HP, Three Phase, 415 Volts, lifting and removing motor form its existing foundation to the location (inside/outside of building) where directed by the Engr-in-Charge, dismantling parts of the motor carefully, checking, segregating serviceable and unserviceable parts,cleaning the serviceable parts thoroughly rewinding of burnt out windings with super enamelled copper wires of existing size/gauge including provision of all insulating materials and varnishing all as per OEM's reccommendations and including replacement of unserviceable parts as required and including reassembling the motor, painting external surface with two coats of synthetic enamel paint after necessary preparation of surface,marking SM, MES or Srl No.,installing to its existing foundation, commissioning, connecting up and testing complete as specified and directed. Note:-Spare Parts for replacement will be measured and paid seperately under respective items of this BOQ here in after.

Supply Only Chrome Steel Ball Bearing No. 6203/6204. (Make: TATA/NBC/SKF)

Supply Only oil seal for monoblock pump set.

Supply Only PVC cooling fan for motor of monoblock pump set.

Disconnecting electrical connections carefully from the penal board/starter and lifting of submersible pump motor of 15/20 HP capacity from existing bore well including column pipe with all accessories and replacement of existing unserviceable column pipe with 100 mm bore galvanised steel tubing,heavy grade of 5.4 mm wall thickness ISI Marked (IS: 1239-Part-I) both end flanged, in 08 (Eight) pieces of 3.00 Metre length each, fitted with flanges at both ends,complete with bolts, nuts, gaskets etc as required,re-lowering of pump motor in the existing bore well, reconnection to starter/penal board testing and commissioning, complete all as specified and directed.

Supply and Fix in repairs, cast iron sluice valve of size 80 mm bore,Class PN 1.6, long body type, with brass spindle,CI wheel, both ends flanged with holes, ISI Marked (IS 14846-2000), including provision of nuts, bolts& washers, rubber gaskets etc., fixed to CI water mains,complete all as specified and directed.

Supply and Fix in repairs, cast iron sluice valve of size 100 mm bore, Class PN 1.6, long body type, with brass spindle,CI wheel, both ends flanged with holes, ISI Marked (IS 14846-2000), including provision of nuts, bolts& washers, rubber gaskets etc., fixed to CI water mains,complete all as specified and directed.

Supply and Fix in repairs, cast iron sluice valve of size 150 mm bore, Class PN 1.6, long body type, with brass spindle,CI wheel, both ends flanged with holes, ISI Marked (IS 14846-2000), including provision of nuts, bolts& washers, rubber gaskets etc., fixed to CI water mains,complete all as specified and directed.

Supply and Fix in repairs, cast iron double flanged swing check type reflux valve of size 80 mm bore, Class PN 1.6, with vertical seating and integral by-pass arrangement, both ends flanged with holes, ISI Marked (IS-5312: 2004) provision of nuts, bolts& washers, rubber gaskets etc., fixed to water mains, complete all as specified and directed.

Supply and Fix in repairs, cast iron double flanged swing check type reflux valve of size 100 mm bore, Class PN 1.6, with vertical seating and integral by-pass arrangement, both ends flanged with holes, ISI Marked (IS-5312: 2004) provision of nuts, bolts& washers, rubber gaskets etc., fixed to water mains, complete all as specified and directed.

Supply and Fix in repairs, cast iron flanged foot valve with stainer, swing type, with single disc, size 100 mm bore, ISI Marked [IS-4038:1986 (Reaffirmed 2005)], including provision of carbon steel nuts, bolts & washers, rubber gaskets etc., fixed to column pipe, complete all as specified and directed.

Supply and Fix in repairs, gun metal globe or gate valves with iron wheel head, screwed both ends for iron pipe 20 mm bore, complete all as specified and directed

Supply and Fix in repairs, gun metal globe or gate valves with iron wheel head, screwed both ends for iron pipe 25 mm bore, complete all as specified and directed

Supply and Fix in repairs, gun metal globe or gate valves with iron wheel head, screwed both ends for iron pipe 50 mm bore, complete all as specified and directed

Supply and Fix in repairs, cast copper alloy vertical check valve, 25 mm size, ISI Marked [IS : 778 - 1984 (Reaffirmed 1995)],complete all as specified and as directed.

Materials and Labour for,run lead joint for cast iron spigot and socket pipes and fittings for water mains ,80 mm bore,complete all as specified and directed.

Materials and Labour for,run lead joint for cast iron spigot and socket pipes and fittings for water mains ,100 mm bore,complete all as specified and directed.

Materials and Labour for,run lead joint for cast iron spigot and socket pipes and fittings for water mains ,150 mm bore,complete all as specified and directed.

Materials and Labour for constructions of brick masonry valve pit,of size 450 mm (L) X 450 mm (B) X 450 mm (D) [internal dimensions] 230 mm thick brick wall in cement mortar (1:4) on 100 mm thick PCC 1:4:8 type D2 (using 40 mm graded aggregate) as in foundation, 15 mm thick rendering internally, externally up to 15 centimetre below GL provision of valve pit cover made out of 3 mm thick MS plate welded with 40 x 5 mm thick FI frame all round including provision of hinges, handles, locking arrangement, ISA 40 x 40x 5 mm frame, fixed on top of valve pit by means of hold fast 150 mm long, embedded in PCC 1:2:4 type B1 (Block size 230 X 200 X 100 mm) including applying two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer and necessary earth work in soft/loose soil, including demolition of existing unserviceable valve pit,complete all as specified and directed.

Materials and Labour for constructions of brick masonry valve pit,of size 900 mm (L) X 900 mm (B) X 900 mm (D) [internal dimensions] 230 mm thick brick wall in cement mortar (1:4) on 100 mm thick PCC 1:4:8 type D2 (using 40 mm graded aggregate) as in foundation, 15 mm thick rendering internally, externally up to 15 centimetre below GL provision of valve pit cover made out of 3 mm thick MS plate welded with 40 x 5 mm thick FI frame all round including provision of hinges, handles, locking arrangement, ISA 40 x 40x 5 mm frame, fixed on top of valve pit by means of hold fast 150 mm long, embedded in PCC 1:2:4 type B1 (Block size 230 X 200 X 100 mm) including applying two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer and necessary earth work in soft/loose soil, including demolition of existing unserviceable valve pit,complete all as specified and directed.

Materials and Labour for constructions of brick masonry valve pit,of size 1200 mm (L) X 1200 mm (B) X 1200 mm (D) [internal dimensions] 230 mm thick brick wall in cement mortar (1:4) on 100 mm thick PCC 1:4:8 type D2 (using 40 mm graded aggregate) as in foundation, 15 mm thick rendering internally, externally up to 15 centimetre below GL provision of valve pit cover made out of 3 mm thick MS plate welded with 40 x 5 mm thick FI frame all round including provision of hinges, handles, locking arrangement, ISA 40 x 40x 5 mm frame, fixed on top of valve pit by means of hold fast 150 mm long, embedded in PCC 1:2:4 type B1 (Block size 230 X 200 X 100 mm) including applying two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer and necessary earth work in soft/loose soil, including demolition of existing unserviceable valve pit,complete all as specified and directed.

Supply Only, flat three core, PVC insulated industrial cable for submersible motor, 10.00 Sq. mm (Nominal area) with multi stranded copper conductor, 1100 Volts grade,conforming to IS: 694,complete all as specified and directed.

Supply and Fix, On Load Change Over Switch in sheet steel enclosure, Four Pole, Current Rating 63 Amps, conforming to IS 13947 (Part 3)-1993; IEC: 60947-3, complete all as specified and directed. [Cat No.CO10630OSOO of Make “L&T” or equivalent Model of Make Siemens/ Schneider/ ABB.]

Supply and Fix, On Load Change Over Switch in sheet steel enclosure, Four Pole, Current Rating 100 Amps, conforming to IS 13947 (Part 3)-1993; IEC: 60947-3, complete all as specified and directed. [Cat No.CCO11000OSOO of Make “L&T” or equivalent Model of Make Siemens/ Schneider / ABB.]

Supply and Fix, On Load Change Over Switch in sheet steel enclosure, Four Pole, Current Rating 160 Amps, conforming to IS 13947 (Part 3)-1993; IEC: 60947-3, complete all as specified and directed. [Cat No.CO21600OSOO of Make “L&T” or equivalent Model of Make Siemens/ Schneider/ ABB.]

Supply and Fix in repairs,moulded case circuit breakers (MCCBs), conforming to IEC 60947-2& IEC 60947-2, AC 415V, 4 pole, with current rating 63 Amps and 25 KA breaking capacity Icu at 415V, AC, 50Hz, with adjustable Over Load setting: 0.8 - 1.0 x In and adjustable Short Circuit setting: 6-10 x In, complete all as specified and directed. [Cat No. CM91712OOHOOG of Make “L&T” or equivalent Model of Make Siemens/ Schneider / ABB.]

Supply and Fix in repairs,moulded case circuit breakers (MCCBs), conforming to IEC 60947-2& IEC 60947-2, AC 415V, 4 pole, with current rating 160 Amps and 25 KA breaking capacity Icu at 415V, AC, 50Hz, with adjustable Over Load setting: 0.8 - 1.0 x In and adjustable Short Circuit setting: 6-10 x In,complete all as specified and directed. [Cat No. CM90642OOMO of Make “L&T” or equivalent Model of Make Siemens/ Schneider/ ABB.]

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in soft/loose soil , complete all as specified and directed.

Returning filling in soft/loose soil, including, spreading levelling watering and well ramming in layers not exc. 25 cm complete all as specified and directed.

Removing excavated soils to a distance not exceeding 50 Metres and depositing where directed at a level n. exc. 1.5 M above the starting point complete all as specified and directed.

Materials and Labour for,100 mm bore, galvanized steel tubing, medium grade, with all fittings, fixed complete to walls and ceilings or laid in floors,including taking up or down existing steel tubing, and connection including cleaning for re-fixing or removal from site of work, complete all as specified and directed.

Taking out carefully old filter media from rapid sand gravity fitter of size 4.50 M x 3.85 M x 3.70M, open type,above ground level,removing to a distance not exceeding 100 M and depositing where directed at a level n. exc.1.5 M above the starting point complete all as directed.

Taking out carefully old filter media from rapid sand gravity fitter of size 3.80 M x 2.50 M x 4.10 M, open type,above ground level,removing to a distance not exceeding 100 M and depositing where directed at a level n. exc.1.5 M above the starting point,complete all as directed.

Draining out water from settling tank of size 3.70M x 4.50M x 3.85M (internal dimensions) including taking out silt, mud, sludge etc. and removing all dirt, scales etc. manually from the internal surfaces of tank including washing the surface throughly with fresh water, complete all as specified and directed.

Draining out water from reserve tank of size 4.90M x 1.20M x 3.85M (internal dimensions) including taking out silt, mud,sludge etc.and removing all dirt, scales etc.manually from the internal surfaces of tank including washing the surface throughly with fresh water, complete all as specified and directed.

Draining out water from clear water sump of size 3.70M x 2.10M x 3.85M (internal dimensions) including taking out silt, mud,sludge etc.and removing all dirt, scales etc.manually from the internal surfaces of tank including washing the surface throughly with fresh water, complete all as specified and directed.

Taking out carefuly the existing unserviceable 80mm bore perforated steel tubing and connection from bottom of the rapid sand gravity filter/reserve tank including cleaning for re-fixing or removal from site of work,complete all as directed .

Materials and Labour for,80 mm bore,perforated galvanised steel tubing, medium grade,with 03 (Three) rows of 6mm dia. holes @ 70 mm c/c, fixed to the bottom of rapid sand gravity filter/reserve tank, with one end of the tubing sealed by welding 6mm thick MS plate and other end to be fixed with GI reducer socket 80 mm x150 mm to existing 150mm bore galvanised steel tubing complete with all accessories including cutting, threading, drilling holes etc.,all as required at site and including painting of new steel surfaces with two coats of anti corrosive and non toxic black bituminous paint (Compatible with Drinking Water) over a coat of red oxide zinc chrome primer,complete all as specified and directed.

Supply and Fix in repairs, 80 mm bore,galvanised steel tubing nipple,300 mm long made out of steel tubing medium grade,fixed to bottom of rapid gravity filter reserve tank, including taking out the existing GI nipple complete all as specified and directed.

Cleaning of aeration tower with channel upto sump [8.25M(L) x 0.75M (W) x 6.75M (H)] by scraping off dirt and scales etc. including washing the surface throughly with fresh water,complete all as specified and directed.

Preparation of old plastered or unplastered surfaces of aeration tower including channel and applying two coats of cement base paint, complete all as specified and directed. (Approx. area of painting 125.00 SqM)

Disconnection of pipeline connection from the pressure filter plant of capacity 10000 gallon, opening the man hole, taking out the old filter medias completely from oxidation chamber, pre filter, iron removal filter and removing to a distance not exceeding 100 M and depositing where directed at a level n. exc.1.5 M above the starting point including re-connection of pipeline and re-fixing of manhole cover in the original position, including replacement of unserviceable PP/LDPE, 3/8” BSP thread strainer and including replacement of gasket for man hole cover and necessary nuts, bolts & washers as required, complete all as specified and directed

Disconnection of pipeline connection from the pressure filter plant of capacity 20000 gallon, opening the man hole, taking out the old filter medias completely from oxidation chamber, pre filter, iron removal filter and removing to a distance not exceeding 100 M and depositing where directed at a level n. exc.1.5 M above the starting point including re-connection of pipeline and re-fixing of manhole cover in the original position, including replacement of gasket for man hole cover and necessary nuts, bolts & washers as required,complete all as specified and directed

Material and Labour for applying two coats of anti corrosive and non toxic black bituminous paint (Compatible with Drinking Water) to internal brick,stone,concrete,asbestos cement or plaster surfaces of existing open type rapid sand gravity filter after complete descaling of surfaces and including preparation of surfaces,complete all as specified and directed.

Material and Labour for applying two coats of anti corrosive and non toxic black bituminous paint (Compatible with Drinking Water) over a coat of red oxide zinc chrome primer to internal steel surfaces of existing IRP of capacity 10000 gallons per hour, comprising of pre-filter,pressure filter,oxidation chamber/media chamber etc. after complete descaling of surfaces and including preparation of surfaces (Approx area of painting 45.00 SqM),complete all as specified and directed.

Material and Labour for applying two coats of anti corrosive and non toxic black bituminous paint (Compatible with Drinking Water) over a coat of red oxide zinc chrome primer to internal steel surfaces of existing IRP of capacity 20000 gallons per hour, comprising of pre-filter,pressure filter,oxidation chamber/media chamber etc. after complete descaling of surfaces and including preparation of surfaces (Approx area of painting 79.00 SqM),complete all as specified and directed.

Supply and Fix in repairs, PP/LDPE, 3/8” BSP thread strainer suitable for pressure filter, complete all as specified and directed.

Materials and Labour for filling in,Filtration Media Sand ,effective size 0.35 mm to 0.50 mm,hard and resistant, quartz or quartzite, free from clay, fine particles, soft grains and dirt of every description,conforming to IS 8419, Part-I, inside rapid gravity filter & pressure filter,complete all as specified and directed.

Materials and Labour for filling in,Filteration Media Gravel,size 3 mm to 6 mm, consisting of hard,rounded stones with average specific gravity of not less than 2.5 and free from clay, sand, loam and organic impurities of any kind,conforming to IS 8419, Part-I, inside rapid gravity filter & pressure filter, complete all as specified and directed.

Materials and Labour for filling in,Filteration Media Gravel,size 6 mm to 12 mm, consisting of hard,rounded stones with average specific gravity of not less than 2.5 and free from clay, sand, loam and organic impurities of any kind,conforming to IS 8419, Part-I, inside rapid gravity filter & pressure filter,complete all as specified and directed.

Materials and Labour for filling in,Filteration Media Gravel,size 12 mm to 20 mm, consisting of hard,rounded stones with average specific gravity of not less than 2.5 and free from clay, sand, loam and organic impurities of any kind,conforming to IS 8419, Part-I, inside rapid gravity filter & pressure filter, complete all as specified and directed.

Materials and Labour for filling in,Filteration Media Gravel,size 20 mm to 40 mm, consisting of hard,rounded stones with average specific gravity of not less than 2.5 and free from clay, sand, loam and organic impurities of any kind,conforming to IS 8419, Part-I, inside rapid gravity filter & pressure filter, complete all as specified and directed.

Materials and Labour for filling in, Anthracite coke,hard,compact variety of coal, having a submetallic luster with carbon content between 92.1% and 98%,in aeration towers/gravity filters/pressure filters, complete all as specified and directed.

Materials and Labour for filling in,Carbofelt Compound, in aeration towers/ gravity filters/presssure filters, complete all as specified and directed.

Materials and Labour for filling in,Manganese Dioxide (MnO2) media, approximate size 20 mm X 24 mm, with MnO2 contents minimum 65%, in aeration towers/ oxidation chambers, complete all as specified and directed.

M/S L G BUILDERS