REPAIR AND MAINTENANCE OF EXTERNAL WATER SUPPLY AND UNSERVICEABLE PIPE LINES AT SECTOR D AREA UNDER 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 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. Make : JINDAL/KISAN/SFMC/Supreme/Kanha Plastic Pvt Ltd

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. Make : JINDAL/KISAN/SFMC/Supreme/Kanha Plastic Pvt Ltd

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. Make : JINDAL/KISAN/SFMC/Supreme/Kanha Plastic Pvt Ltd

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. Make : JINDAL/KISAN/SFMC/Supreme/Kanha Plastic Pvt Ltd

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. Make : JINDAL/KISAN/SFMC/Supreme/Kanha Plastic Pvt Ltd

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. Make :TATA/Electro Steel Ltd/Jindal Saw Pipes/Rashmi Metalic Ltd/AARKO

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. MAKE : TATA/JINDAL/BST/Prakash Surya

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. MAKE : TATA/JINDAL/BST/Prakash Surya

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. MAKE : TATA/JINDAL/BST/Prakash Surya

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. MAKE : TATA/JINDAL/BST/Prakash Surya

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. MAKE : TATA/JINDAL/BST/Prakash Surya

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. MAKE : TATA/JINDAL/BST/Prakash Surya

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. Make Kirloskar/Sant/L&T/BIR/Leader/TATA

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. Make Kirloskar/Sant/L&T/BIR/Leader/TATA

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. Make Kirloskar/Sant/L&T/BIR/Leader/TATA

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. Make : JINDAL/KISAN/SFMC/Supreme/Kanha Plastic Pvt Ltd

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. Make : JINDAL/KISAN/SFMC/Supreme/Kanha Plastic Pvt Ltd

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. Make : JINDAL/KISAN/SFMC/Supreme/Kanha Plastic Pvt Ltd

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. Make : JINDAL/KISAN/SFMC/Supreme/Kanha Plastic Pvt Ltd

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. Make : JINDAL/KISAN/SFMC/Supreme/Kanha Plastic Pvt Ltd

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 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. Make Kirloskar/Sant/L&T/BIR/Leader/TATA

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 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. Make Kirloskar/Sant/L&T/BIR/Leader/TATA

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 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. Make Kirloskar/Sant/L&T/BIR/Leader/TATA

S & F in replacement of cast iron air release valve flanged type heavy duty grade single outlet air release valve 150mm 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. Make : Kirloskar/Sant/L&T/BIR/Leader/TATA

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. Make : Kirloskar/Sant/L&T/BIR/Leader/TATA.

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. Make : Kirloskar/Sant/L&T/BIR/Leader/TATA.

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.

Supply and mixing of calcium based granular disinfectant for water treatment more stable than clorine gas and stronger than bleaching powder and sodium hypo chlorite paking in 45 Kgs plastic drums all as specified and directed. Make : Purichlor or equivalent

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 80-150 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.

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 40/52 HP submersible 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 52 HP Pump

Neck Ring suitable for 15- 25 HP Pumps

Neck Ring suitable for 52 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 52 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.

Supply & fixing in replacement PVC insulated flat submersible cable with copper conductor 3 core 16 sqmm make - Finolex/plaza/Kaling/Havell's

Supply & fixing in replacement PVC insulated flat submersible cable with copper conductor 3 core 10 sqmm make - Finolex/plaza/Kaling/Havell's

M & L for insulation to pipe line 50 mm bore dia using Nitrile insulation 19m thick including appliying addessive all as specified and as directed by Engr-in-Charge.

M & L for insulation to pipe line 25 mm bore dia using Nitrile insulation 19m thick including appliying addessive all as specified and as directed by Engr-in-Charge.

M & L for taking down,transportation from site to civil work shop and back to installation site after repair electric motor 3 phase 415 V, 50 Hz, AC from foundation/coupling, opening the motor cutting and 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 nuts and bolts and re-installing the motor and connecting to the pump testing the motor for satisfactory performance all as directed for the following capacities and make of motors including demolition of existing PCC bed of the respective motor after taking and material and labour for provinding new PCC bed for the respective motor as per existing old size including making certain cemented works all as directed by the Engineer-in-Charge at site ( The item rate is inclusive of provision of new foundation bolts etc) :-

Electric motor 3 phase, 415 V capacity 100 HP Make Seimens/Jyothi/Crompton Greaves/kirloskar and make as per site requirment.

Electric motor 3 phase, 415 V capacity 15 to 25 HP Make Seimens/Jyothi/Crompton Greaves/kirloskar and make as per site requirment.

M & L for taking down,transportation from site to civil work shop and back to installation site after repair booster Pump from foundation/coupling, opening the centrifugal pump and connecting to the motor testing for satisfactory performance all as directed for the following capacities and make including making certain cemented works all as directed by the Engineer-in-Charge at site ( The item rate is inclusive of provision of new foundation bolts etc) :- (Spare parts replaces shall be measured and paid for seprately)

Multistage centrifugal Pump coupled to motor of capacity 100 HP Make Seimens/Jyothi/Crompton Greaves/kirloskar and make as per site requirment.

Centrifugal Pump coupled to motor of capacity 15 to 40 HP Make Seimens/Jyothi/Crompton Greaves/kirloskar and make as per site requirment.

Repair of pump shaft of any make with necessary metral filling and grinding to required shape suitable for 100 HP capacites.

Neck Ring suitable for 100 HP Pumps

Supply and replace pumpset coupling made out of mild steel

Impllers as per existing suitable for 100 HP Pumpset .

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

KONCHOK TSEWANG

M/S BETONG CONSTRUCTION CO

R B TRADERS

Feroz Engineering Works