REPAIR AND MAINT OF EXTERNAL WATER SUPPLY INSTALLATIONS INCLUDING DISTRIBUTION PIPELINES RISING MAINS AND VARIOUS TYPES OFVALVES AT SECTOR D UNDER AGE EM I OF GE 865 EWS

Amount

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, for laying cables/pipes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth in Hard/Dense soil and getting out soil, complete all as specified and as directed by Engineer-in-Charge.

Removal of excavated material (soil) to a distance n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point complete all as specifed and as directed by Engineer-in-Charge.

Returning filling in (soil) including spreading, levelling, watering and well ramming in layers n.exc 25cm thick in any type of soil complete all as specifed and as directed by Engineer-in-Charge.

S&F for GI tubing 150mm bore medium grade with all fittings and laid in floors or trenches complete including taking down of old u/s GI pipes all as specified & directed by Engr-in-Charge.

S&F for GI tubing 100mm bore medium grade with all fittings and laid in floors or trenches complete including taking down of old u/s GI pipes all as specified & directed by Engr-in-Charge.

S&F for GI tubing 80mm bore medium grade with all fittings and laid in floors or trenches complete including taking down of old u/s GI pipes all as specified & directed by Engr-in-Charge.

S&F for GI tubing 50mm bore medium grade with all fittings and laid in floors or trenches complete including taking down of old u/s GI pipes all as specified & directed by Engr-in-Charge.

S&F for GI tubing 40mm bore medium grade with all fittings and laid in floors or trenches complete including taking down of old u/s GI pipes all as specified & directed by Engr-in-Charge.

S&F for GI tubing 25mm bore medium grade with all fittings and laid in floors or trenches complete including taking down of old u/s GI pipes all as specified & directed by Engr-in-Charge.

Supply and laying in trenches of Ductile iron pipe S/S including specials, Class “K-7” in replacement including alighning and jointing with the existing pipe line complete with necessary Rubber Gasket/tightined jointing and jointing material for 150mm Dia complete all as directed by tyhe Engr-in-Charge.

S&F PP-R pipes PN 20/SDR 6, 3 layer 50mm dia bore with all fittings conforming to IS-15801 and fixed complete to walls and ceiling or laid in floors or trenches complete including taking down of old u/s PP-R pipes all as specified & directed by Engr-in-Charge.

S&F PP-R pipes PN 20/SDR 6, 3 layer 40mm dia bore with all fittings conforming to IS-15801 and fixed complete to walls and ceiling or laid in floors or trenches complete including taking down of old u/s PP-R pipes all as specified & directed by Engr-in-Charge.

S&F PP-R pipes PN 20/SDR 6, 3 layer 32mm dia bore with all fittings conforming to IS-15801 and fixed complete to walls and ceiling or laid in floors or trenches complete including taking down of old u/s PP-R pipes all as specified & directed by Engr-in-Charge.

S&F PP-R pipes PN 20/SDR 6, 3 layer 25mm dia bore with all fittings conforming to IS-15801 and fixed complete to walls and ceiling or laid in floors or trenches complete including taking down of old u/s PP-R pipes all as specified & directed by Engr-in-Charge.

S&F PP-R pipes PN 20/SDR 6, 3 layer 20mm dia bore with all fittings conforming to IS-15801 and fixed complete to walls and ceiling or laid in floors or trenches complete including taking down of old u/s PP-R pipes all as specified & directed by Engr-in-Charge.

S&F in replacement gun metal, globe or gate valve ISI marked cast with ironwheel head, screwed both ends for iron pipe and fixed for 50 mm dia bore complete all as specified & directed by Engr-in-Charge.

S&F in replacement gun metal, globe or gate valve ISI marked cast with ironwheel head, screwed both ends for iron pipe and fixed for 40 mm dia bore complete all as specified & directed by Engr-in-Charge.

S&F in replacement gun metal, globe or gate valve ISI marked cast with ironwheel head, screwed both ends for iron pipe and fixed for 25 mm dia bore complete all as specified & directed by Engr-in-Charge.

Supply and fixing in replacement PPR gate valve confirming to ISO 9001- 2000 conforming to IS-15801 screwed down high pressure with crutch or butter fly handle screwed both ends for PP-R pipes or for union and fixed completely as specified for the size 50mm dia bore complete all as specified and directed bt Engr-in-Charge.

Supply and fixing in replacement PPR gate valve confirming to ISO 9001- 2000 conforming to IS-15801 screwed down high pressure with crutch or butter fly handle screwed both ends for PP-R pipes or for union and fixed completely as specified for the size 40mm dia bore complete all as specified and directed bt Engr-in-Charge.

Supply and fixing in replacement PPR gate valve confirming to ISO 9001- 2000 conforming to IS-15801 screwed down high pressure with crutch or butter fly handle screwed both ends for PP-R pipes or for union and fixed completely as specified for the size 32mm dia bore complete all as specified and directed bt Engr-in-Charge.

Supply and fixing in replacement PPR gate valve confirming to ISO 9001- 2000 conforming to IS-15801 screwed down high pressure with crutch or butter fly handle screwed both ends for PP-R pipes or for union and fixed completely as specified for the size 25mm dia bore complete all as specified and directed bt Engr-in-Charge.

Supply and fixing in replacement PPR gate valve confirming to ISO 9001- 2000 conforming to IS-15801 screwed down high pressure with crutch or butter fly handle screwed both ends for PP-R pipes or for union and fixed completely as specified for the size 20mm dia bore complete all as specified and directed bt Engr-in-Charge.

S&F in replacement cast iron sluice valve for water supply purpose with CI drilled flanged ends (internal cast 150mm bore class PN1.6 confirming to IS-780 (ISI marked) with stainless steel spindle and iron wheel including jointing material complete such as rubber packing rings of adequate size and requisite number of nuts bolts and washer complete all as specified and directed by Engr-in-Charge.

S&F in replacement cast iron sluice valve for water supply purpose with CI drilled flanged ends (internal cast 100mm bore class PN1.6 confirming to IS-780 (ISI marked) with stainless steel spindle and iron wheel including jointing material complete such as rubber packing rings of adequate size and requisite number of nuts bolts and washer complete all as specified and directed by Engr-in-Charge.

S&F in replacement cast iron sluice valve for water supply purpose with CI drilled flanged ends (internal cast 80mm bore class PN1.6 confirming to IS-780 (ISI marked) with stainless steel spindle and iron wheel including jointing material complete such as rubber packing rings of adequate size and requisite number of nuts bolts and washer complete all as specified and directed by Engr-in-Charge.

S & F in replacement of cast iron air release valve flanged type heavy duty grade single outlet air release valve 25mm bore and fixing upto 150mm dia CI/DI/GI pipe including suitable adopter, rubber hinged sheet, nut, bolt etc complete all as specified & directed by Engr-in- Charge.

Supply and fix in replacement cast iron non return valve ISI marked flanged ends with by pass arrangements of size 150mm dia bore complete all as specified and directed by Engr-in-Charge.

Supply and fix in replacement cast iron non return valve ISI marked flanged ends with by pass arrangements of size 100mm dia bore complete all as specified and directed by Engr-in-Charge.

M & L for checking of leakage at various places including labour for excavation,welding work,returning filling including requitred material (e.g. lead jointing,rubber gaskit,flange,ironing for PPR pipes etc.) for DI/CI/GI/PPR 150-250 mm dia pipe complete all as specified and directed.

M & L for checking of leakage at various places including labour for excavation,welding work,returning filling including requitred material (e.g. lead jointing,rubber gaskit,flange,ironing for PPR pipes etc.) for DI/CI/GI/PPR 40-65 mm dia pipe complete all as specified and directed.

M & L for checking of leakage at various places including labour for excavation,welding work,returning filling including requitred material (e.g. lead jointing,rubber gaskit,flange,ironing for PPR pipes etc.) for DI/CI/GI/PPR 80-100 mm dia pipe complete all as specified and directed.

Lifting of defective submersible pump set including motor of any type and size from the bore well along with column pipe including disconnection electric and water supply connection as required and aside for re-use after repair including transport to the workshop for repair complete as directed by the Engineer-in-chgarge.

Rewinding of 15/25 HP submersible motor vertical type with suitable size of copper conductor PVC wire complete all as specified and directed.

Rewinding of 40 HP submersible squirrel cage induction motor vertical type with suitable size of copper conductor PVC wire complete all as specified and directed.

M & L for servicing of submersible pump of following capacity by decoupling from motor and transport to the workshop for repair including replacement of UNSV spare parts and made functional complete all as specified and directed.(Spare parts will be measured and paid saperatelly .)

Supply only the following items for PUMP :-

Thrust bearing suitable for 15- 25 HP PUMP

Thrust bearing suitable for 40 HP Pump

Neck Ring suitable for 15- 25 HP Pumps

Neck Ring suitable for 40 HP Pumps

Pumpset coupling made out of mild steel

Pump shaft of any make with necessary material filling and grinding to required shape

Impellers made out of Bronze metal with suitable size of quarter pin.

Bowl assembly for 15-25 HP PUMP

Bowl assembly for 40 HP PUMP

Lowering of submersible pump and motor set alongwith column pipe of any size with including provision of new jointing materials such as rubber gasket, nuts and bolts and washers, pipe connection, jointing with M-Seal Jointing kit cable connection and testing complete.

M&L for disconnection of defective centrifugal booster pump/DD pump from foundation/coupling, transportation to civil workshop for opening the defective pump for replacement of following defective spares and connecting to motor for testing for satisfactory performance al as directed by Engr-in-Charge. (The item rate is inclusive of new foundation bolts :-

Multistage centrifugal pump 100 HP

Multistage centrifugal pump 15/25 HP

DD Pump 52 HP

Repair to pump shaft of any make with suitable material filling, welding, grinding to original shape suitable for 100 HP motor coupling

Repair to pump shaft of any make with suitable material filling, welding, grinding to original shape suitable for 52 HP DD Pump motor coupling

Repair to pump shaft of any make with suitable material filling, welding, grinding to original shape suitable for 15/25 HP motor coupling

Neck ring suitable for 100 HP Pump

Neck ring suitable for 52 HP DD Pump

Neck ring suitable for 15/25 HP Pump

M&L for disconnection of burnt/defective motor from foundation/coupling, transportation to civil workshop for opening the motor and cutting/removing the burnt windings, cleaning the stator and rotor with cleaning agent rewinding the motor with appropriate gauge of super enamelled copper wire of approved make. Insulating the winding with same class of insulation. Supply and replacement of base foundation incl nuts and bolts and re-installing the motor and connecting the pump for testing the motor and re installation at site after repair of electric motor, 3 phase, 415 volt 50 Htz AC for satisfactory performance all as directed by Engr-in-Charge for the following capacities and make of motors including demolition of existing bed of the motor after lifting and M&L for providing new PCC bed for respective motor as per existing old size incl making certain cemented platform works complete all as specified (The item rate is inclusive of new foundation bolts :-

Electric motor, 3 phase, 415 volt capacity 100HP. Make : Siemens/Jyoti/Crompton Greaves/Kirloskar

Electric motor, 3 phase, 415 volt capacity 52HP. Make : Siemens/Jyoti/Crompton Greaves/Kirloskar

Electric motor, 3 phase, 415 volt capacity 15/25 HP. Make : Siemens/Jyoti/Crompton Greaves/Kirloskar

Supply and installation in replacement High pressure single head gear motor adjustable dosing pump set, uneffected on dry running having no loss of prime independent of back pressure and aboe to handle bot chemical solutions as well as suspensions, 230 volt 50 cycles, AC , 44 RPM, 1/30 fraction HP having output 2 US GPD to 40 GPD complete with accessories is tubing connecting nuts injecting check valves, ferrules etc of Model 96NGQ51 of Declibac complete all as specified and directed by Engr-in-Charge.

Supply and fix in replacement Altoch dosing system consisiting of 100 litres PE/FRP tank with E/FRP lid and level gauge alongwiith Agiator (1280 RPM) with shaft and blade (FRP/Epoxy coated) plastic mounted on tank lid having port hole for pouring Altoch and water as required. Lid having provision for mounting dosing pump on lid Agiator motor 90 watts, 1440 RPM, 230 volts 50 cycles, 0.2 Amp and having speed controller to reduce speed upto 800 rpm of Model ADS - I of Declibac complete all as specified and directed by Engr-in-Charge.

Supply and mixing of Altoch GP water disinfectant in packing of 45 Kgs plastic drums all as specified and directed.

S&F in replacement for design, fabrication, installation, testing and commissioning of 70 Amp Auto starter cum fault analyser, protection and control panel comprising of the following :- (i) Fabricatin of PHU/Auto starter with power contactor MNX-70 - 2 Nos. MNX-50 - 1 Nos of L&T make alongwith MCCB of 100 Amp rating of L&T Make. (ii) The system should be provided with a solid state fault analyser cum controller (CB - 4 SA) (iii) The complete system shall be enclosed in a floor/wall mounted MS sheet enclosure/box of suitable gauge and dimensions with proper entry and exit holes for incoming and outgoing cables. The enclosure should be finished with powder coated painting from inside aswell form outer surface of approved colour. (iv) Providing/laying of copper cables from stabilizer/main switch to Automation/protection system (3 leads) and from system to motor (6 leads) with proper thimbling and socketing each end of the conductor with proper rating copper thimbles as per site requirement. The system shall provide protection against :- (a) Low voltage below 360V (b) High voltage above 450V (c) Single Phasing (d) Reverse phasing (e) Un balanced phasing (f) Dry running (g) Overloading Make : L&T/Havells/Guardian

S&F in replacement for design, fabrication, installation, testing and commissioning of 125 Amp Auto starter cum fault analyser, protection and control panel comprising of the following :- (i) Fabricatin of PHU/Auto starter with power contactor MNX-125 - 2 Nos. MNX-50 - 1 Nos of L&T make alongwith MCCB of 100 Amp rating of L&T Make. (ii) The system should be provided with a solid state fault analyser cum controller (CB - 4 SA) (iii) The complete system shall be enclosed in a floor/wall mounted MS sheet enclosure/box of suitable gauge and dimensions with proper entry and exit holes for incoming and outgoing cables. The enclosure should be finished with powder coated painting from inside aswell form outer surface of approved colour. (iv) Providing/laying of copper cables from stabilizer/main switch to Automation/protection system (3 leads) and from system to motor (6 leads) with proper thimbling and socketing each end of the conductor with proper rating copper thimbles as per site requirement. The system shall provide protection against :- (a) Low voltage below 360V (b) High voltage above 450V (c) Single Phasing (d) Reverse phasing (e) Un balanced phasing (f) Dry running (g) Overloading Make : L&T/Havells/Guardian

Supply & fixing in replacement PVC insulated flat submersible cable with copper conductor 3 core 16 sqmm

Supply & fixing in replacement PVC insulated flat submersible cable with copper conductor 3 core 10 sqmm

Material and labour for construction of stone masonary valve pit sixe 120x120x90 cm (internal dimension) built in cement mortal 1:4 incl plastering 20mm thick internally and externally in CM 1:4 PCC 1:4:8 TYPE D-2 15 Cm thick in foundation extending 10cm beyound external faces of wall around PCC flooring 1:2:4 type B-1 40mm thick cover made out of 3.15mm thick MS round bar and locking arrangement with lock 2 keys . MS sheet cover should be painted with two caats of enamessed paint over a coat of red oxide primer all as specified and directed.

M&L dewatering, celaning of reserviours/UG sump of following capacity with high-pressure jet complete all as specified and directed in six stages cleaning process as under :- (a) Dewatering the tank with protable submersible pump of suitable capacity. (b) Cleaning of wall, ceiling and floor with high-pressure rotary water jet and bleaching powder/liquid. (c) Spraying of nontoxic biodegradable ecofriendly antibacterial agent certified by a Govt approved lab to disinfect the tank from harmful pathogens. The dose utilzied should be as per OECD guide NO 432. (d) Treatment of inside tank exposing UV radiations to kill the suspended or floating bacterial remaining in tank :-

25000 gallon capcity under ground sump at LSRC

50000 gallon capcity under ground sump at Ladkah and 2 LS Pump House

SANJEEV ENTERPRISES

sumit associates

KONCHOK TSEWANG

betong construction company

EESSI

SHARMA AND SONS CONSTRUCTION CO

R B TRADERS

Mehar Enterprises