REPAIR OR MAINTENANCE OF ACTIVATED CARBON FILTER PLANT, SOFTENER PLANT, WATER SUPPLY DISTRIBUTION AND CERTAIN ALLIED WROKS OF WTP OR STP OR ETP AT 87 SQDN AT AF STATION ARJAN SINGH

Amount

Supply and fixing male female threaded adaptor suitable for soda ASH/Alum pots including taking down old adaptors

Supply and fixing PVC Diaphram valve of size 15 mm PN-1.6 suitable to fix in soda Ash and Alum pot complete all as specified and directed .

Supply and fix 2.5 mtr length heavy duty PVC flexible armoured pipe with jubilee clip on both ends of size 15/20 mm dia suitable for fixing with soda ash and alum pot complete all as directed.

Taking out existing submersible pump set of any capacity alongwith column pipe from bore well and lowering the same after repairs the pump set or adding the extra length of cable, column pipe, welding work or for development of tube well including disconnecting and re-connection of all electric & mechanical connection Note : (i) One lifting, & one lowering shall be measured one job in this item. (ii) Repair of pump set or adding extra length of cable, column pipe, welding work or development of tubewell shall be measured and paid separately

Material & labour for rewinding of electric motor of compressor 5 HP with supper enamelled copper wire of existing gauge, varnishing drying with electric furnace process with taking down burnt winding cleanining of stator and rotor, replacement of bush, bearing and greasing etc including taking down/dismantling from its base or from roof of building complete testing & commissioning all as directed by engineer in charge

Material & labour for rewinding of electric motor of 1 HP with supper enamelled copper wire of existing gauge, varnishing drying with electric furnace process with taking down burnt winding cleaning of stator and rotor including replacement of bush, bearing and greasing including testing & commissioning complete all as directed.

Material & labour for unscrewing of submersible pump from motor and rewinding of elctric motor 25 HP (submersible motor) with supper enameled copper wire of existing gauge, varnishing drying with electrical furnace process and repair/replacing / cleaning unserviceable impeller and all lathe work related to submersible pump and shafts including taking down burnt winding cleaning of stator and rotor including replacement of bush, bearing etc testing & commissioning complete all as directed by Engr-in-Charge

Material & labour for unscrewing of submersible pump from motor and rewinding of elctric motor of 20 HP (submersible motor) with supper enameled copper wire of existing gauge, varnishing drying with electrical furnace process and repair/replacing/ cleaning unserviceable impeller and all lathe work related to submersible pump and shafts including taking down burnt winding cleaning of stator and rotor including replacement of bush, bearing etc testing & commissioning complete all as directed by Engr-in-Charge

Material & labour for unscrewing of submersible pump from motor and rewinding of elctric motor of 15 HP (submersible motor) with supper enameled copper wire of existing gauge, varnishing drying with electrical furnace process and repair/replacing/ cleaning unserviceable impeller and all lathe work related to submersible pump and shafts including taking down burnt winding cleaning of stator and rotor including replacement of bush, bearing etc testing & commissioning complete all as directed by Engr-in-Charge

Material & labour for unscrewing of submersible pump from motor and rewinding of elctric mortor of 12 HP (submersible motor) with supper enameled copper wire of existing gauge, varnishing drying with electrical furnace process and repair/replacing/ cleaning unserviceable impeller and all lathe work related to submersible pump and shafts including taking down burnt winding cleaning of stator and rotor including replacement of bush, bearing etc testing & commissioning complete all as directed by Engr-in-Charge

Material & labour for unscrewing of submersible pump from motor and rewinding of elctric motor of 7.5HP (submersible motor) with supper enameled copper wire of existing gauge, varnishing drying with electrical furnace process and repair/replacing/ cleaning unserviceable impeller and all lathe work related to submersible pump and shafts including taking down burnt winding cleaning of stator and rotor including replacement of bush, bearing etc testing & commissioning complete all as directed by Engr-in-Charge

M&L for cleaning of existing RCC/steel overhead tank of capacity 90000 ltrs at 25 mtrs staging through 6" stage mechanical tank cleaning process by involving the following six (6) stages of cleaning process complete all as specified and as directed by Engr-in-Charge. for RCC/steel overhead tank of capacity 90000 ltrs at 25 mtrs staging . The six stages of cleaning process are as under :- (a) De-watering by high pressure submersible pump all complete. (b) Total removal of sludges by suction pumps all complete. (c) Cleaning of walls, ceiling & floor by high pressure German Jet of 80-80 bar pressure all complete. (d) Removal of all dirt particles and sludge by vaccum pump specially disigned all complete. (e) Anti-bacterial treatment of inside of tank which is effective against all pathogens all complete. (f) Sterlization of tank atmosphere by industrial ultra-violet radiation leaving the tank completely sterilized all complete. Note : - (1) The entire work should be carried out be TANCLEAN process by any franchises or M/s TANKCLEANING (Pvt) Ltd, or any other MES approved firm having equivalent technology. (2) Entire T&P should be arranged by the Contractor at their own. Only electric power & water shall be supplied by MES at the stipulated rate. (3) "Date of cleaning" should be written over the outer surface of tank by synthetic enamel paint with lettering not less than 100mm height. Cost of the same is deemed inclusive in the quoted unit rate of cleaning of tank.

All as per Item No 15 above complete but for existing RCC/steel overhead tank of capacity 50000 litre

All as per Item No 15 above complete but for underground sump/Ground level tank of capacity 90000 Ltrs

All as per Item No 15 above complete but for underground sump/Ground level tank of capacity 55000 Ltrs

All as per Item No 15 above complete but for underground sump/Ground level tank of capacity 247430 Ltrs

Supply & fix only PVC insulated waterproof 3 core cable suitable for submersible pump set 1100 volts grade with standard copper conductor cable of size 6 sqmm including water proof jointing material complete all as directed by Engr-in Charge. Make- KEI/Polycab/Havells

Supply and fixing Water pressure gauge 0 to 10.6 kg/cm2 pressure including gauge cock of suitable size complete testing and commissioning including taking out U/S pressure gauge with or without cock any type all as directed.

Supply and replacement of SWR steel rope of size 8 mm including fixing double U clamps of suitable size complete all as directed by Engr-inCharge

Supply and fixing in repairs, Pump tube of existing make complete all as directed

Supply and fixing in repairs Injection check valve 3/8'' of existing make complete all as directed

Supply and fixing in repairs , Weighted suction line strainer 3/8'' of existing make complete all as directed.

Supply and fixing in repairs, 3/8'' white suction/discharge PVC tubing suitable for decrin Dosing pump of existing make complete all as directed

Supply and fixing in repairs, Complete shaft with impeller, shaft made out of poly propylene rigid dia 32mm and 500mm long, impeller-two bladed pitched blade turbine and blades are welded to shaft of existing make complete all as directed

Supply and fixing in repairs, connecting nut 3/8" with adapter complete all as directed.

Supply and fixing in repairs, check valve duckbill only of existing make complete all as directed

Supply and fixing in repairs, glands of size 10 mm

Development of tube well with air compressor not less than 265 CFM capacity with adjustable length of pipe till sand free potable water is obtained all as directed by Engineer in charge. Note:-The machiniries, tools and plants, Diesel and labour cost to be beared by contracator

Testing/Chemical analysis of water sample from the IRP after recharging of Filter Media shall be carried out from any Govt. Engineering College/PHE office/Water Commission Board and test report shall be submitted to department with in 15 days after treatment of water. The test results should remains in pemisible limit for 6 month duration. The following parameters should be tested i) Turbidity, ii) Ph iii) Iron(Fe) iv) Fluoride v) Arsenic vi) Nitrate vii) Calciumas CaCO3 viii) Chloride ix) Residual chlorine Xi) Magnesium as MgCO3 Xii) Alkanity Xiii) TDS Xiv) COD xv) Total coliform Xvi) Sulphate SO4 xvii) BOD

supply only chlorine test kit with colured ample complete with all testing fitments and OT solution in rexine finish box complete. Make : RMCO or its equivalent make

Supply only OT solution for chlorine testing (500 ml)

supply only iron test kit with colured sample complete with all testing fitments and OT solution in rexine finish box complete. Make : RMCO or its equivalent

Supply only IRON TEST solution (3 botls x 500 ml each).Make- RMCO or its equivalent

Dismanling all parts of chlorine dosing pump and servicing/repair and rewind of motor of chlorine doser and replace all unserviceable parts etc all as directed by Engr- in- charge.

Supply only calcium Hypo chlorite having 65 % - 70 % available cholrine packed in plastic drums for water treatment chemical. Comlete all as specified and as directed. Make - DECLIBAC (ALTOCH-CH), M/S SHREE RAYALASEEMA Hi STRENGTH (PURI CHLOR), POTTER AND WATTS, BRIO ZING or any make approved by E-in-C Branch.

Supply only raw water Poly aluminium chloride AC/100S inorganic soluble polymer in sealed plastic bag, medium basicity, suitable as a flocculant for treatment of water. Make : DECLIBAC(DEPAC-P), M/S SHREE RAYALASEEMA Hi STRENGTH, POTTER AND WATTS, BRIO ZING or any make approved by E-in-C Branch.

Supply only sodium hypo chlorite having spefic gravity at 25 degree celcius is min 1.171, available chlorine , min 12 % wt , total alkali as NaoH ; max 1.5 % wt Make : Aditya Birla Chemicals/Durgapur Chemical Ltd (DC)/Shri Ram/Vinyle & Chemicals Industries or equivalent make having ISI marked

Servicing/overhauling of centrifugal pump / Compressor set by dismantling completely and replacing unserviceable ball bearing, shaft sleeve, gland nack ring gland rope, nut and bolts etc. assembling back the complete pump and fixing alignment to the original position and coupling with pump and necessary alignment etc with two coat enameled paint including scraping complete and written MES/SM, testing and commissioning all as directed by Engr-in-charge. Note : (i) Spares shall be measured and paid separatly under relavent items.(ii) Painting and writting including item rate. (a) Maintenance schedule :- (i) Checking for looseness of all the foundation and coupling nuts/bolts and rectification. (ii) Checking for proper functioning of all the voltmeter, Ammeter, starter, contactor etc and rectification. (iii) Checking for proper functioning of suction and discharge pressure gauges and rectification. (iv) Checking of leakage in gland packing, shifting base, bushes sluice valves, gate valves etc and rectification. (v) Checking for any undue noise of motor pump and rectification. (b) Maintenance schedule :- (i) Checking for proper aligment and rectification. (ii) Checking for proper lubrication in bearing and lubricating. (iii) Checking all electrical panel using for pumping for cleanliness and rectification for any looseness burnt redressing etc. (c) 5 HP compressor

Supply and fixing submersible pump Motor controller for 25 HP pump 3 Phase including taking down old starter from panel connecting all necessary arrangent of starter with the existing system. Make : L&T, ABB or its equivalent.

Supply and fixing submersible pump Motor controller for 20HP pump 3 Phase including taking down old starter from panel connecting all necessary arrangent of starter with the existing system. Make : L&T, ABB or its equivalent.

Supply and fixing submersible pump Motor controller for 15 HP 3 Phase pump including taking down old starter from panel connecting all necessary arrangent of starter with the existing system.

Supply and fixing submersible pump Motor controller for 12.5 HP 3 Phase pump including taking down old starter from panel connecting all necessary arrangent of starter with the existing system.

Supply and fixing submersible pump Motor controller for 7.5 HP pump 3 Phase including taking down old starter from panel connecting all necessary arrangent of starter with the existing system.

supply and fix ball brass vlaves, Float Valve, high pressure, with polythene float and flynut complete, screwed for iron pipe or brass ferrule and fixed of size 20mm Dia at any height of the building.

supply and fix ball brass vlaves, Float Valve, high pressure, with polythene float and flynut complete, screwed for iron pipe or brass ferrule and fixed of size 25mm Dia at any height of the building.

supply and fix ball brass vlaves, Float Valve, high pressure, with polythene float and flynut complete, screwed for iron pipe or brass ferrule and fixed of size 50 mm Dia at any height of the building.

M & L replacement of bib taps 15 mm dia plastic type, screwed down, screwed for iron pipe or for brass ferrule and fixed for respective size

supply only Soda ash

Supply only distill water

Comprehensive maintenance of pump sets, installed in pump house at C-130J(WTP), Sewage Treatment Plant (STP), Effluent Treatment plant (ETP), hangar including repairing, serviceing and replacement if required i.e checking of gland packing, ball bearing, alignment of pump and motor, mechanical seal, oil seal, oil seal bush, strainer, impeller key, 'O' ring, round gasket, outer cover packing,impeller washer, cap washer, spring washer,long screw, oil plug screw, air vent screw, priming plug, bush for capacitor, capacitor, split coller pin, bearing house, rotor, outer casing, impeller casing, flange rubber gasket, checking and rectification of operation of pump and motors abnormal noise/sound, motor vibration. Details of items are as under:- (a) Iron removal filter feed pump set 2.2KW/3HP, Make:- KIrloskar =02Nos (b) Softener feed pump set 1.5KW/2HP, Make:- Kirloskar =02Nos (c) HPN system for sanitary fixtures 5.5KW/7.5HP, Make:- Grandfos =02Nos (d) HPN system for HVAC system .1.5HP, Make:- Grundfos =02Nos (e) Dosing Pump for IRFP(Capacity 0-6 LPH) , Make-E-Dose, =01Nos (f) Drainage Pump -3HP, Make- WILO=02 Nos (g) Submersible pump 12.5HP- 02 Nos (h) Raw Sewage Pump (Submersible Pump)-0.75 KW, Make- Grunfos=02 No. (i) Filter Pressure Pump set .75KW/1HP, Make:- Roto =01Nos (j) Filter Feed Pump set .75KW, Make:- Grandfos =02Nos (k) Sludge Reciculating Pump set 0.75HP, Make:- Jonson Pump =02Nos (l) Blower set with electric motor2.2KW/3HP, Make:- Kirloskar =02Nos (m) Filter Press Make-Welcome=01Nos (n) Dosing Pump for (Capacity 0-6 LPH) , Make-E-Dose, =01Nos (o) Raw Sewage Pump set(Submersible Pump) 0.5KW/.75HP, Make:- Wilo=02Nos (p) Filter Feed Pump set .75KW/1HP, Make:- kirloskar =02Nos (q) Sludge Disposal pump .7KW/1HP, Make:- UT =01Nos (r) Blower set with electric motor 2.2KW/3HP, Make:- Everest =02Nos (s) Dosing Pump-Make-Toschon Jesco=04 No. NOTE FOR ITEMS NO. 50 - (i) Service carried out by reputed service firms Having one engineer, one technician, and one helper in each servicing. (ii) Minor spare parts such as grease, gland rope, split pin, nuts bolts etc are included in Sch A and no extra cost will be given by the department. (iii) If any other spare parts required during the service the same will be measured and paid seperatly under provision sum.

Supply and fix CI sluice valve 100 mm, PN 1.6, including taking down existing u/s, Make:- Kirloskar/Sant/Castle/Apollo/Rmco.

Supply and fixing Water pressure gauge 0 to 100 kg/cm² pressure including gauge cock of suitable size complete testing and commissioning including taking out U/S pressure gauge with or without cock any type all as directed.

Schedule A Part II Prime cost Sum : The prime cost is to used as directed by the Accepting Officer vide condtion 1 (v) and 5 of IAFW-2249 of General Condition of Contract forming part of the tender documents. (a) Suppy of spare parts for various capacity of Pump sets will be decided after dismantling and ordered convening BOO of the Acceptnig Officer (b) Suppy of spare parts for Plumbing fixtures and control panel will be decided after dismantling and ordered convening BOO of the Acceptnig Officer (c) Spare parts will be handed over to contractor in schedule of credit, Rates will be taken from Schedule of credit board (d) Contractor quoted rate shall be included for overhead and profit and insert amount to cover all However,quoted amount shall not exceed 15% (Fifteen percentage) of estimated amount . In case the contractor quoted amount is in excess of 15% of the estimated amount,the same shall be restricted to 15% add the amounted quoted shall be corrected accdordingly to work out the contract sum

Disconnection of inlet, outlet, and back wash connections from existing Multi grade filter for IRFP(WTP) , Pressure Feed Type with FRP vesels of overall size 30" dia. & 72" Height, opening carefully the manhole/handhole covers, taking out old filteration media from inside the vessels and deposited at a distance n. exceeding 50 Meters, including cleaning the vessels internally by descaling washing down with water, including cleaning the external surfaces of vessels alongwith frontal pipings and inter connection pipings, through cleaning of external surfaces of vessels and writing letters or figures (Block, Roman, Italic or Indian) n exc. 30 cm high and drawing stops, commas, short lines, dashes, hyphens, brackets etc. with synthetic enamel paint [SM/MES No., Capacity, Location etc.], including recharging of Filteration Media, refixing of PVC strainer etc and including reconnection of pipelines, refixing of manhole/handhole covers, testing and commissioning of MGF. Filter media to be replaced as follows(a) Gravels Size 1 1/2" X 1"-150KG (b) Gravels Size 1" X 1/2"- 75KG (c) Gravels size 1/2" X 1/4"-75KG (d) Coarse Silex-150 KG (e) Fine Silex -150KG (f) Filtering Sand-100KG having media density 1.6-18.complete all as specified and directed by engr in charge

Disconnection of inlet, outlet, and back wash connections from existing Softener for HVAC make up water (WTP), Pressure Feed Type with FRP vesels of overall size 600mm dia. & 1600mm Height, opening carefully the manhole/handhole covers, taking out old filteration media from inside the vessels and deposited at a distance n. exceeding 50 Meters, including cleaning the vessels internally by descaling washing down with water, including cleaning the external surfaces of vessels alongwith frontal pipings and inter connection pipings, through cleaning of external surfaces of vessels and writing letters or figures (Block, Roman, Italic or Indian) n exc. 30 cm high and drawing stops, commas, short lines, dashes, hyphens, brackets etc. with synthetic enamel paint [SM/MES No., Capacity, Location etc.], including recharging of Filteration Media, refixing of PVC strainer etc and including reconnection of pipelines, refixing of manhole/handhole covers, testing and commissioning of Softner plant. Filter media to be replaced as follows(a) Resin Quantity-300L (make-Ion exchange or Thermax) (b) Under bed media quantity- 50KG (c) Coarse Silex-75 KG having media density 1.6-1.8 and Resin Density 1.0 complete all as specified and directed by engr in charge

Disconnection of inlet, outlet, and back wash connections from existing Activated Carbon Filter for HVAC make up water (WTP), Pressure Feed Type with FRP vesels of overall size 600mm dia. & 1600mmHeight, opening carefully the manhole/handhole covers, taking out old filteration media from inside the vessels and deposited at a distance n. exceeding 50 Meters, including cleaning the vessels internally by descaling washing down with water, including cleaning the external surfaces of vessels alongwith frontal pipings and inter connection pipings, through cleaning of external surfaces of vessels and writing letters or figures (Block, Roman, Italic or Indian) n exc. 30 cm high and drawing stops, commas, short lines, dashes, hyphens, brackets etc. with synthetic enamel paint [SM/MES No., Capacity, Location etc.], including recharging of Filteration Media, refixing of PVC strainer etc and including reconnection of pipelines, refixing of manhole/handhole covers, testing and commissioning of ACF. Filter media to be replaced as follows(a) Gravels Size 1 1/2" X 1"-150KG (b) Gravels Size 1" X 1/2"- 75KG (c)Activated carbon-200KG having media density 1.6-1.8. complete all as specified and directed by Engr-in-Charge

Note For Item No. 55, 56, 57 (i) The entire media shall be taken out and shall be filled with new filter media. The inside of the filter shell (2 nos) shall be painted with back anticorrosive paint and outside shall be painted with epoxy paint. (ii) Pre strainers to be checked and broken strainer to be changed .

Dismantling all parts of chlorine dosing pump and servicing/repairing of chlorine doser and replace all unserviceable parts from OEM service centre etc complete all as directed by Engr- in- charge. Make-E Dose (Capacity-0-6LPH)/Make-Toshcon Jesco (Capacity-0-6LPH), Courier charge is included in this item rate. Spare Parts to be measured and paid separately in lump sump item

S & F chlorine dosing pump of capacity 0 to 6LPH, Pressure-10 Bar, Power-210 V, complete with suction pipe , Discaharge Pipe, Foot Valve, Line injector, Hose Pipe(15ft), 100 L FRP tank, Manual, Test certificate and minm two year warranty complete all as directed by Engr- in- charge. Make-E Dose(Capacity-0-6LPH)/Make-Toshcon Jesco(Capacity-0-6LPH)

Supply & fixing 100L PVC circular tank fitted for dosing pump of chlorination tank as per sample given. Complete all as specified and directed by engr in charge.

Material and labour for Testing of Raw sewage and treated water of STP in C-130J complex, Following parameters is tested on quarterly basis from any recogonised Govt lab or any authorised lab and Testing certificate is submitted to GE AF Panagarh on quarterly basis. Complete as directed and specified by Engr in charge i)PH(For Raw sewage and treated water) ii)BOD(For Raw sewage and treated water) iii)COD(For Raw sewage and treated water) iv)TSS(For Raw sewage and treated water) v) MLSS(For Aeration Tank) vi)Oil and grease (For raw sewage and traeted water)

Material and labour for Testing of Raw sewage and treated water of ETP in C-130 J complex, Following parameters is tested on quarterly basis from any recogonised Govt lab or any authorised lab and Testing certificate is submitted to GE AF panagarh on quarterly basis. Complete as directed and specified by Engr in charge i) PH(For Raw sewage and treated water) ii) BOD(For Raw sewage and treated water) iii) COD(For Raw sewage and treated water) iii) COD(For Raw sewage and treated water) iv) TSS(For Raw sewage and treated water) v) MLSS(For Aeration Tank) vi) Oil and grease (For raw sewage and treated water)

M & L for Testing of water samples(Raw water from borewell and treated water both) including collection of samples in bottles/containers and depositing to testing agency i.e WB pollution control board or any approved Govt lab in same day and submitting results complete all as specified for following parameters (a) Turbidity, (b) Ph Value (c) Total hardness (d) Iron ,(e) Chloride (f) Residual free chloride, (g) Fluoride (h) Dissolved solids (j) Calcium (k) Mercury (l) Arsenic(m) Lead (n) Pesticides (o) Alkanity (p) Nitrate (q) Total collifarm (r) e- collifarm

Supply only laboratry electronic balance for measuring of chemicals in pump house, Cat No. AT 266-6 of capcity 3 KG complete all as Specified and directed.

Supply only aurora double Telescopic Mag Hinge and Dual ultra stabilizer Portable aluminium ladder 5 m, 16.5 Ft complete all as Specified and directed.

Supply only borosil beaker of capacity 1000ml, product code-1000D29

Supply only borosil Dishes, flat bottom with Pour Out of capacity 165ml, product code-3180072

Supply only borosil Dishes, flat bottom with Pour Out of capacity 855ml, product code-3180081

Supply only borosil Tubes Test with Rim of capacity 13 ml, product code-9800U04

Supply only water softer Salt tablets ISI marked

Construction of brick masonry valve pit internal dimension 650x650x650mm with subclass B bricks in CM (1:6) and 15mm thick plastering in CM (1:4) inside the chamber and on the external portion exposed above ground level, 3mm thick MS sheet cover welded arounds with ms flat iron of size 40x6mm and ms angel iron frame of size 40x40x6mm with locking arrangement and painting with two coats of synthetic enamel paint over a coat of red oxide primer including necessary earth all as specified and directed after dismantling of existing damaged one.

Supply only Pool professional Swimming pool Deep leaf net standard heavy duty pool cleaning Tool Swimming pool net

Supply only Pool professional wall brush 18 inch-curved, soft Nylon bristles,strong, standard and heavy duty, Best swimming pool & pond cleaning Tool, pool wall cleaner

M & L for laying 20 mm bore CPVC Tubing SDR11 in Trenches/Floor/Pillar and connection in old or new positions including fitting like socket/Union/Tee/ Reducer Nipple etc complete as required will be supplied by Contractor, rate for the same including cutting of old UPVC pipe is included in the item rate quoted all as directed by Engr-in Charge.

All as Per above item here-in-before but for 25mm dia,

Taking up or down 80 mm bore galvanised steel tubing and connection including cleaning for relaying or removal to store from trenches/wall surfaces complete all as directed.

All as per above item here-in-above but bore of Pipe 50 mm.

All as per above item here-in-above but bore of Pipe 40 mm.

All as per above item here-in-above but bore of Pipe 25 mm.

All as per above item here-in-above but bore of Pipe 20 mm.

All as per above item here-in-above but bore of Pipe 15 mm.

M & L for laying 80 mm bore GI Tubing medium grade in Trenches/Floor/Pillar and connection in old or new positions including fitting like socket/Union/Tee/ Reducer Nipple etc complete as required will be supplied by Contractor, rate for the same is included in the item rate quoted all as directed by Engr-in Charge.

All as per above item here-in-above but bore 50 mm

All as per above item here-in-above but bore 40 mm

All as per above item here-in-above but bore 25 mm

All as per above item here-in-above but bore 20 mm

All as per above item here-in-above but bore 15 mm

Supply & Fixing 40mm bore Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed including taking out of old unserviceable gate valve any type complete all as directed.

All as per above item here-in-above but size 50 mm dia bore

All as per above item here-in-above but size 25 mm bore.

All as per above item here-in-above but size 20 mm bore.

Excavation in trenches n exc 1.5 m wide & n exc 1.5 m deep in any type of soil for taking out pipe & laying of pipe & getting out for diverting of GI pipe line complete all as directed.

Returning, filling in, including spreading, leveling, watering & well ramming in layers n. exc 25 cm thick complete all as directed.

Removal of excavated soil to a distance not exc 50 m and depositing where directed at a level not exc 1.5 m above the starting point complete all as directed.

M/S BISWAS AND KUNDU CONSTRUCTION