REPAIR AND MAINTENANCE OF PS OVERHEAD TANK, PUMPS, AIR COMPRESSORS, STPs, IRP AND REPLACEMENT OF OLD CI/GI PIPELINE WITH DI/PP-R LINE AT AFS DINJAN UNDER GE (AF) MOHANBARI.

Amount

Excavating in trenches, not exceeding 1.5 m wide and not exceeding 1.5 m in depth for laying of cables, pipes etc. and getting out including trimming the sides and forming bottom surfaces to required levels in soft/loose soil complete all as specified and directed by Engineer-in-charge.

Returning, filling in, including spreading, levelling, and well ramming in layer not exceeding 25 cm thick in soft/loose soil complete all as specified and directed by Engineer-in-charge.

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

Taking up or down old unserviceable GI / MS/CI/DI tubing) 25 mm bore dia and connections including cleaning for refixng or removal to store of following bore of pipe complete all as specified and directed by Engineer-in-charge.. ( Excavation and earthwork measured and paid separately.

All as per item No.4 above but 50 mm bore dia.

All as per item No. 4 above but 80 mm bore dia.

All as per item No. 4 above but 100 mm bore dia.

Supply, laying, jointing and testing Mild steel galvanised water tubing, 25 mm bore dia, medium grade, with and including all GI fittings in trenches complete all as specified and directed by Engineer-in-charge. Note :- (i) Excavation & earthwork shall be measured & paid separately under appropriate item) (ii) All fittings required for laying / fixing shall be brought by the contracor and cost there of shall deemed to be included in the quoted rates.

All as per item No. 8 above but 50 mm outer dia.

All as per item No. 8 above but 80 mm outer dia.

All as per item No. 8 above but 100 mm outer dia.

Supply & fixed in repairs, 20 mm bore dia of pipe, gun metal globe or gate valve, yoke type, full opening with iron wheel head, screwed both ends , heavy duty, ISI marked conforming to IS-778 complete for iron pipe of following sizes complete all as specified and directed by Engineer-in-charge.

Supply & fixed in repairs, 25 mm bore dia of pipe, gun metal globe or gate valve, yoke type, full opening with iron wheel head, screwed both ends , heavy duty, ISI marked conforming to IS-778 complete for iron pipe of following sizes complete all as specified and directed by Engineer-in-charge.

Supply & fixed in repairs, 50 mm bore dia of pipe, gun metal globe or gate valve, yoke type, full opening with iron wheel head, screwed both ends , heavy duty, ISI marked conforming to IS-778 complete for iron pipe of following sizes complete all as specified and directed by Engineer-in-charge.

Supply & fixed in repairs, PP-R Gate valves ( brass insert) 25 mm outer bore of pipe, complete all as specified and directed by Engineer-in-charge.

Supply & fixed in repairs, PP-R Gate valves ( brass insert) 32 mm outer bore of pipe, complete all as specified and directed by Engineer-in-charge.

Material and labour in repairs run lead joints suitable for spigot & socketed CI Pipe, 80 mm bore and gland packing wherever necessary and all jointing materials to make the joint absolutely leak proof including burning out lead joint in position, removing & recovering old lead & including necessary earth work excavation as required complete all as specified and directed by Engineer-in-charge. (Note: Qty of Lead required if any for this joint shall not be paid extra.)

Material and labour in repairs run lead joints suitable for spigot & socketed CI Pipe, 100 mm bore and gland packing wherever necessary and all jointing materials to make the joint absolutely leak proof including burning out lead joint in position, removing & recovering old lead & including necessary earth work excavation as required complete all as specified and directed by Engineer-in-charge. (Note: Qty of Lead required if any for this joint shall not be paid extra.)

Material and labour in repairs run lead joints suitable for spigot & socketed CI Pipe, 150 mm bore and gland packing wherever necessary and all jointing materials to make the joint absolutely leak proof including burning out lead joint in position, removing & recovering old lead & necessary earth work excavation as required complete all as specified and directed by Engineer-in-charge. (Note: Qty of Lead required if any for this joint shall not be paid extra.)

Material and Labour for opening of sluice valves for rectifying leakage of size 80 mm dia, refacing, regrinding and re-fixing with new gland packing, gasket after repair refixing at existing position including nut, bolt, washer, wheel and testing complete all as specified and directed by Engineer-in-charge.

Material and Labour for opening of sluice valves for rectifying leakage of size 100 mm dia, refacing, regrinding and re-fixing with new gland packing, gasket after repair refixing at existing position including nut, bolt, washer, wheel and testing complete all as specified and directed by Engineer-in-charge.

Material and Labour for opening of sluice valves for rectifying leakage of size 150 mm dia, refacing, regrinding and re-fixing with new gland packing, gasket after repair refixing at existing position including nut, bolt, washer, wheel and testing complete all as specified and directed by Engineer-in-charge.

Supply and fixed in repairs, Cast Iron sluice valve of 150 mm bore, class PN 1.0 duly ISI Marked, (conforming to IS-14846-2000) with iron wheel head both end flanged , stainless steel spindle, non rising type complete with Neoprene rubber gasket, nuts, bolts and washers etc. complete all as specified and directed by Engineer-in-charge.

All as per item No.23 above but 100 mm bore pipe

All as per item No.23 above but 80mm bore pipe

Supply and fixed in replacement, connecting and testing reflux valve (non return valve ISI -5312) CI suitable for 100 mm bore pipe heavy duty both end flanged of pressure rating PN 1.6 and jointing with joint with rubber or fibre board gasket complete with and including required nos size of nuts, bolts and washers complete all as specified and directed by Engineer-in-charge.

Supply & fixed in repairs of butterfly valve of size 100 mm dia incl nut, bolt etc complete all as specified and directed by Engineer-in-charge.

Supply and Fixing in repairs pressure gauge with isolation cock suitable for a working pressure of zero to 100 Kg/SqCm (Liquid based High intensity) complete all as specified and directed by Engineer-in-charge. Make :- RAMGO / GILCO / FIEBIG / PREMIER

Material and labour for lifting of submersible mortor pump set (upto 20 Hp) from existing borewell of depth upto 30 Mt with the help of chain pully carefully including MS/GI pipe and submersible cable for inspection by Engineer-in-Charge and lowering the submersible pumps set into the existing borewell upto a depth of 30 Mt including replacement of submersible cable, rubber gaskets and MS pipe complete all as specified and directed by Engineer-in-charge. Note: (i) Cost of small parts such as,nuts,bolts, are deemed to be included in quoted rate. (ii) cable and MS pipe as required will be measured and paid separately under respective items.

Material and Labour for lifting of submersible mortor pump set (upto 20 Hp) from existing borewell of depth upto 30 Mt with the help of chain pully carefully including MS/GI pipe and submersible cable and lowering the submersible pumps set into the existing borewell upto a depth of 30 Mt including submersible cable and GI tubing/ MS tubing including repair/ overhauling of submersible pump by replacing the bush impeller, thrust bearing, nuts and bolts, washers, bowl, neck ring, SS Shaft key and winding the motor with existing gauge copper wire etc and repair to pump set by re-mettaling, grinding, polishing on lathe machine, greasing and reassembling the pump set with complete testing including painting with 2 coat of enamel paint (1 st quality) over a coats of zinc chrome primer complete all as specified and directed by Engineer-in-charge. Note:- (i) Spares required for repairs and replacement shall be measured and paid seperately under respective item. (ii) Quoted rate shall deemed inclusive of labour element for repair and replacement of spares. (iii) Inventory of all defective parts required to be replaced will be recorded in a separate register alongwith Pump No. & location / area and before replacement duly signed by JE, Engineer-In-Charge & contractor and the same shall be produced as and when desired for verification. ( iv) Proper gate pass and issue voucher and recipt voucher shall be maintained out side MD Land repair works are to be carried out for motor pump. (v) Cost of small parts such as,nuts,bolts, are deemed to be included in quoted rate.

Supply only Bowl for submersible pump.

Supply only Impeller for submersible pump.

Supply only Bushing for submersible pump.

Supply only Neck ring for submersible pump.

Supply only SS shaft for submersible pump.

Supply only Key for submersible pump 1' long.

Supply only Coupling for submersible pumpset..

Supply only Thurst bearing for submersible motor.

Supply only Sar clip for motor.

Supply only Upper housing for submersible motor.

Supply only Lower housing for submersible motor.

Supply only Motor bushing.

Dismantling pump set centrifugal type 20 HP, AC, 3 phase, 415 volts from site after disconnecting of suction and delivery line, taking out to work shop, dismantling pump set for overhauling, replacing u/s shaft sleeve, gland packing, bush, water seal, applying grease and rewinding the motor with wire of proper gauge and reassembling the pump set and refixing back at site on the base plate and connecting existing pipe line with nuts, bolts and new gasket, connecting the electric connection with existing cable etc and including painting of external portion of pump with synthetic enamel paint (1 st quality) of two coat after one coat priming of red oxide primer and testing for satisfatory working of pump complete all as specified and directed by Engineer-in-charge.

Supply and fixing in repairs PVC insulated copper cable, HRFR, water proof best quality of size 3 core 10 Sqmm multistranded for connection to submersible pump set of capacity upto 20 HP, testing and commissioning complete all as specified and directed by Engineer-in-charge.

Supply and fixed in repair fully automatic Star-Delta strater for submersible pump set of rating 25 HP/ 18.7KW, 415 volt, 50 Hz, with relay range 21-42 Amps, 3 phase in epoxy coated sheet enclousre and necessary connection complete all as specified and directed by Engineer-in-charge.

Transportation of monoblock pump set 0.5 HP,AC, Single phase, 220/240 V from pump house at any location/Yard in Cantt area contractor's workshop, dismantling for carrying out cutting , opening of winding, re- winding of monoblock pump set of any make and rewinding with same size of copper winding wire with insulation material, varnishing, heating complete and depositing the same after repairs to AGE EM store yard complete all as specified and directed by Engineer-in-charge.

Material and labour for repairing of leakage of GI tube size exceeding 25 mm bore and not exceeding 50 mm bore dia at any location and any position by cutting / threading/ jointing including necessary fitting such as tee/socket/ elbow/ reducer/ nipple as per requirement of site including earth work complete all as specified and directed by Engineer-in-charge.

Supply only calcium Hypo Chlorine 65%-70% Chlorine content calcium based granular disinfectant (45Kg sealed drum) for water treatment, much more stable than Chlorine Gas and stronger than bleaching powder and sodium hypochoride complete all as specified and as directed. Note: Test certificate are to be submitted at the time of supply of material.

Material and labour for dismantling of F R P construction solution preparations cum settling tank with level gauge, lid, inlet / outlet connection, drain connection and fitted with speed reducer, motor and SS agitator dozing pump motor and rewinding the 0.5 Hp motor with existing gauge copper wire and insulation material and repairing the chemical dosing (metering) pump. complete all as specified and directed by Engineer-in-charge.

Matreial and labour for disconnecting of defective Air compressor from the Pump house including motor of 3 phase and Compressor along with PVC pipe including disconnecting electric connection as required and dismantling spare parts of Air Compressor of any size, motor overhauling, rewinding, greasing, testing and separating the unserviceable parts, cleaning the serviceable parts, re-metalling machinery polishing and re-assembling including replacement of old parts and necessary painting apply spray paint with two coat of synethetic enamel paint over a coat of red oxide primer complete all as specified and directed by Engineer-in-charge. Note:- Spare parts required will be measured and paid separately as "Supply only" here in after.

Supply only Piston for pump set

Supply only Piston oil ring

Supply only Liner

Supply only Bearing

Supply only Gear oil

Supply only Compressor air meter

Supply only Nozzle (Air)

Supply only Gate valve 1/2 inch

Supply only PVC nylon heavy duty pipe

Supply only Fan belt

Supply only Wheel

Material and labour for cleaning of internal surface of 50000 Gallons capacity Steel PS OH tank installed at height of 40' to 50' by scraping with brush, rubbing down scales, dirt, sludge etc and washing with clear water using bleaching powder/caustic soda and taking all rubbish from the tank and removing the same to outside MD land at any distance including the writing of date of cleaning complete all as specified and directed by Engineer-in-charge.

Material and labour for cleaning of internal surface of 4800, 6600 and 3600 Gallons capacity Steel PS OH tank installed at height of 30' to 50' by scraping with brush, rubbing down scales, dirt, sludge etc and washing with clear water using bleaching powder/caustic soda and taking all rubbish from the tank and removing the same to outside MD land at any distance including the writing of date of cleaning complete all as specified and directed by Engineer-in-charge.

Material and labour for Cleaning of internal surface of 50000 gallon capacity RCC overhead reservoir of 18 metre high staging by scraping with wire brushes, rubbing down scale, birt, sludge etc and washing with clear water using bleaching powder/costic soda and taking all rubbish from the reservoir and removing the same to outside MD land land at any distance complete all as specified and directed by Engineer-in-charge.

Dismantling and taking down unserviceable pressed steel plates of size 1.25 x 1.25 mtr of thickness 6 mm by unscrewing the jointing bolts and necessary arrangement for holding of other plates at the time of repairs/replacement etc from 50000, 6600,3600 or 4800 gallons capacity PS overhead water tank installed on 40' to 50' height staging complete all as specified and directed by Engineer-in-charge. (Note :- Cost of staging/working platform involved shall be deemed to be included in the unit rate quoted).

Material and labour for replacement of joint cleat of same size and thickness of 6 mm as existing inside the overhead P.S tank at 40 feet height staging including fabrication of cleat by cutting from MS plate to size and shape, drilling holes, welding of web pierces with gusset plate wherever required after making in shape and drilling holes including nuts and bolts etc complete all as specified and directed by Engineer-in-charge.

Supply and fixing Pressed steel plates of size 1.25 m x 1.25 m x 6 mm fixed at any position of PS overhead tank installed on 40' to 50' height staging including necessary jointing materials to make the jointing portion absolutely leak proof complete all as specified and directed by Engineer-in-charge.

Material and labour for Jointing old plates of OH PS tank with jointing materials such as lead wire, lead wool and bituminous compound including testing for leak proof complete all as specified and directed by Engineer-in-charge.

Opening completely pressure filter & oxidation chamber of capacity 10000 GPH and taking out existing filter media (sand, gravells) stainers and nozzles, removing and depositing filter media to a distance not exceeding 50 m for reuse at site and strainer and nozzles to MES stores yard including necessary repair/welding to make the pressure filter vessels complete leak proof for improving the strength and finally reassembling the pressure filter including filling of new strainer, gravles & sand in existing position duly cleaned replacing worn out gasket and nut bolts and washers complete all as specified and directed by Engineer-in-charge. ( Note-Nozzles, strainers, gravels shall be measured and paid seperatley under relevant items)

Material and labour for prepration of old painted steel/iron surfaces of pressure filter & oxidation chamber by scrapping and cleaning of internal surfaces and applying two coats of black bituminious anti corrosive paint suitable for drinking water and marking the date of cleaning on the body complete all as specified and directed by Engineer-in-charge.

Supply only of PVC push type/threaded type strainer suitable for filteration plant complete all as specified and directed by Engineer-in-charge.

Supply only special coarse sand passing through 3.125 x 1.56 mm mesh suitable for use in filteration plant complete all as specified and directed by Engineer-in-charge.

Supply only special coarse sand passing through 1.6 x 3.2 mm mesh suitable for use in filteration plant complete all as specified and directed by Engineer-in-charge.

Supply only new washed, cleaned, dust free, gravel of grading 25 mm to 20 mm. graded filter media suitable for use in filteration plant complete all as specified and directed by Engineer-in-charge.

Supply only new washed, cleaned, dust free, gravel of grading 20 mm to 12 mm. graded filter media suitable for use in filteration plant complete all as specified and directed by Engineer-in-charge.

Supply only new washed, cleaned, dust free, gravel of grading 12 mm to 06 mm. graded filter media suitable for use in filteration plant complete all as specified and directed by Engineer-in-charge.

Supply only new washed, cleaned, dust free, gravel of grading 06 mm to 03 mm. graded filter media suitable for use in filteration plant complete all as specified and directed by Engineer-in-charge.

Supply and fixing in repair in layers mix of manganese dioxide (MnO2) and treated carbofil in lumps of size 20 mm to 15 mm containing 65% of manganese Dioxide and 35% KG carbofil suitable for use in filltration plant complete all as specified and directed by Engineer-in-charge.

Developing of tube well by means of 265 cfm air compressor until sandfree clear potable water up to 10 PPM is obtained including testing by using diesel engine driven turbine pump to get maximum yeild and discharge including supply of yeild test result complete all as specified and directed by Engineer-in-charge.

Supply & fixing in repairs round strand steel wire rope RHO/LHO/RHL/LHL conforming to IS: 2266/02 dia 12 mm 1770 N/mm2 tensile and connected clamp nuts bolts fixed complete all as specified and directed by Engineer-in-charge.

Supply and fixing in repairs of double flanged Cl ventury of size 100 mm dia incl one No ferrule at no pressure zone complete in existing line complete all as specified and directed by Engineer-in-charge.

Supply and lowering MS column pipe (medium grade) conforming to IS of size 100 mm dia bore approx 3 m length each duly both ends flanged / drilled by welding with special provision such as MS clamps and MS flange (Sice shall be as per IS specifications) and should have two cuts for fixing submersible cable and connecting complete with rubber gasket and nuts bolts etc including taking out, dismantling of old pipe complete all as specified and directed by Engineer-in-Charge.

Material and labour for construction of valves pit chamber of size (900 mm x 900 mm x 900 mm, internal ), using PCC (1:4:8) 40 mm graded stone aggregate for foundation 15 cm thick, 23 cm thick wall in CM (1:4) 10 mm thick rendering all around the brick work with 1:6 cement mortar PCC (1:2:4) type B1 coping with 20 mm graded agregate for grouting MS frame including 4 mm thick MS top sheet cover with locking arrangement including 50 mm pad lock with double key arrangement, MS frame out of 40 x 40 x 5 mm thick angle iron including painting of steel surface with two coats of synthetic enamel paint over a coat of red oxide primers finishing coat including necessary excavation in any type of soil, returning filling in and removal of surplus soil to a distance not exceeding 50 mtrs all as specified and including demolition/dismantling of existing cracked valve chamber complete all as specified and directed by Engineer-in-Charge.

Dismantling the water level indicator and Supply and Fixing PVC float valves of 300 mm dia bore at over head tank of height 40' to 50' and replacement of nylon rope of 6 sqmm dia of water level indicator of existing length, greasing and repair to rope guide pully complete all as specified and directed by Engineer-in-Charge.

Taking out defective / unservicable hand pump set and refixing the same after replacement of unserviceable parts like MS plunzer with rod 01 No, leather washer 01 Nos, leather bucket with cast iron plate 01 Nos, cast iron handle and 01 No cast iron base plate 01 Nos and MS nuts, bolts of sizes as required numbers complete all as specified and directed by Engineer-in-Charge. (Note : Material used to make pump in serviceable deemed tobe incliuded in quoted rate. )

S&F in repair Rollar Assembly of chlorine dozing plant

S&F in repair Pump Tube of chlorine dozing plant

S&F in repair Injection Check Valve 3/8" of chlorine dozing plant

S&F in repair White suction and discharge tubing 3/8" of chlorine dozing plant

Dismantling and taking down unserviceable pressed steel plates of sizes 1.25x1.25M of thickness 6mm by unscrewin the jointing bolts from U/S water storage tank at S/S-B of 50000 gallons capacity PS overhead water tank installed on 40' to 50' height staging complete etc all as specified and as directed by Engr-in-Charge. (Note-Cost of staging/ working platform involved should be deemed to be included in the unit rate quoted and the U/S pressed steel of size 1.25x1.256 mtr which have removed from overhead tank at S/S -B should be deposited in MES store yard)

Dismantling and taking down unserviceable channel of sizes upto 300mm from U/S water storage tank at S/S-B of 50000 gallons capacity PS overhead water tank installed on 40' to 50' height staging complete etc all as specified and as directed by Engr-in-Charge. (Note-Cost of staging/ working platform involved should be deemed to be included in the unit rate quoted and the U/S channel of size upto 300mm which have removed from overhead tank at S/S -B should be deposited in MES store yard)

Dismantling and taking down unserviceable angle iron of sizes upto 100x100x8mm from U/S water storage tank at S/S-B of 50000 gallons capacity PS overhead water tank installed on 40' to 50' height staging complete etc all as specified and as directed by Engr-in-Charge. (Note-Cost of staging/ working platform involved should be deemed to be included in the unit rate quoted and the U/S angle iron of sizes 100x100x8mm which have removed from overhead tank at S/S -B should be deposited in MES store yard)

Dismantling and taking down unserviceable angle iron of sizes upto 65x65x6mm from U/S water storage tank at S/S-B of 50000 gallons capacity PS overhead water tank installed on 40' to 50' height staging complete etc all as specified and as directed by Engr-in-Charge. (Note-Cost of staging/ working platform involved should be deemed to be included in the unit rate quoted and the U/S angle iron of sizes 65x65x6mm which have removed from overhead tank at S/S -B should be deposited in MES store yard)

D B Construction

M/S D G ENTERPRISE

M/s Sashi Enterprise

S K ENTERPRISE

KP GHOSH AND CO

M/s Shiva Technical Enterprise