REPAIR/REPLACEMENT OF EXTERNAL WATER SUPPLY WORKS INCL REPAIR TO VALVE PITS,CLEANING OF UG SUMP, REPAIRS TO PUMP MOTORS AT BMC AREA UNDER GE (C) KOLKATA

Amount

Excavation in trenches not exc. 1.5 Metre wide and not exc. 1.50 Metre in depth for foundation etc. or for shafts, wells, cess pits, manholes, pier holes etc. not exc. 10 Sqm on plan and not exc. 1.50 Metre in depth and getting out as in Soft/Loose Soil, complete all as specified and as directed.

Returning, Filling in, including Spreading, Levelling, Watering and Well Ramming in Layers not exc. 25 Cm as in Soft/Loose Soil, complete all as specified and as directed.

Removing excavated Material (Soil) not exc. 50.00 Metre and depositing where directed at a level not exc. 1.50 Metre above the starting point, complete all as specified and as directed.

Taking up / down the following size of water mains and connections/fittings of any type from trenches/ walls / floors (of any location) for replacement / re-use in old / new location/diversion complete all as specified and directed by the Engr-in-Charge. Note: Necessary earthwork, if any , will be measured and paid separately under relevant items (a) Bore size 50 mm

(b) Bore size 40 mm

(c) Bore size 25 mm

(d) Bore size 20 mm

Relaying/Re-fixing Galvanised Steel Tubing 20mm Bore (dia) and Connections in New or Old Position (Serviceable Pipes and Fittings obtained from taking down item) after Cleaning both Inner and Outer Surfaces of Pipes by using of Wire Brush including Provision of New GI Fittings (as ordered), complete all as specified and as directed.

Relaying/Re-fixing Galvanised Steel Tubing 25mm Bore (dia) and Connections in New or Old Position (Serviceable Pipes and Fittings obtained from taking down item) after Cleaning both Inner and Outer Surfaces of Pipes by using of Wire Brush including Provision of New GI Fittings (as ordered), complete all as specified and as directed.

Relaying/Re-fixing Galvanised Steel Tubing 40mm Bore (dia) and Connections in New or Old Position (Serviceable Pipes and Fittings obtained from taking down item) after Cleaning both Inner and Outer Surfaces of Pipes by using of Wire Brush including Provision of New GI Fittings (as ordered), complete all as specified and as directed.

Relaying/Re-fixing Galvanised Steel Tubing 50mm Bore (dia) and Connections in New or Old Position (Serviceable Pipes and Fittings obtained from taking down item) after Cleaning both Inner and Outer Surfaces of Pipes by using of Wire Brush including Provision of New GI Fittings (as ordered), complete all as specified and as directed.

M&L for burning out old unserviceable lead joint in position, including removing old lead of size 80 mm Cast Iron complete all as specified and directed.

M&L for burning out old unserviceable lead joint in position, including removing old lead of size 100 mm Cast Iron complete all as specified and directed.

M&L for burning out old unserviceable lead joint in position, including removing old lead of size 150 mm Cast Iron complete all as specified and directed.

S&F CI bends, (any type radius & angle) tapers any type (strain out bend) increasing decreasing or double socket etc Tee pieces (single branch) junction double brass cross collars (flanged or socket and spigot suitable for 150 mm DI/CI pipe) etc. after taking out old UNSV one complete all as specified and as directed.

Taking out existing Cast Iron Sluice valve for the following size of any type from pipe line, including cleaning for refixing or removal of unserviceable sluice valve from site complete all as specified and directed by the Engr-in-Charge. (a) Bore size 80 mm

(b) Bore size 100 mm

(c) Bore size 150 mm

S&F Cast Iron Sluice valve of 150 mm bore of pressure rating PN-1.6 conforming to IS : 14846 – 2000 specifications comprising of cast iron body with control assembly of flanged both ends, brass spindle with extended iron rod of 25mm dia & 3.00 m long alongwith iron wheel head, bolts, nuts & washers with 3mm thick rubber gaskets including taking out the old unserviceable one complete all as specified and directed.

Supply and fix Cast Iron Sluice valve of 100 mm bore of pressure rating PN-1.6 conforming to IS : 14846 – 2000 specifications comprising of cast iron body with control assembly of flanged both ends, brass spindle with extended iron rod of 25mm dia & 3.00 m long alongwith iron wheel head, bolts, nuts & washers with 3mm thick rubber gaskets including taking out the old unserviceable one complete all as specified and directed.

Supply and fix Cast Iron Sluice valve of 80 mm bore of pressure rating PN-1.6 conforming to IS : 14846 – 2000 specifications comprising of cast iron body with control assembly of flanged both ends, brass spindle with extended iron rod of 25mm dia & 3.00 m long alongwith iron wheel head, bolts, nuts & washers with 3mm thick rubber gaskets including taking out the old unserviceable one complete all as specified and directed.

Repair to u/s sluice valve 150mm bore by taking out cleaning & derusting with acid washing all the parts after removing from site & replacement of brass spindle, GM lock nuts, gaskets, nuts both & washer etc to make fully serviceable and re-fixing the same in original position including connection complete all as specified and directed. Note : Brass spindle will be measured & paid separately.

Repair to u/s sluice valve 100mm bore by taking out cleaning & derusting with acid washing all the parts after removing from site & replacement of brass spindle, GM lock nuts, gaskets, nuts both & washer etc to make fully serviceable and re-fixing the same in original position including connection complete all as specified and directed. Note : Brass spindle will be measured & paid separately.

Supply only brass spindle suitable for 150mm bore sluice valve complete all as specified and directed.

All as per item No.18 but suitable for 100mm bore sluice valve complete all as specified and directed.

S&F Gun metal check valve 200 mm dia heavy duty (IS-778-84+1 marked) screwed end including rubber gasket joints, nuts, bolts etc after lifting of suction pipe from UG sumps and lowering the same including taking down old one complete all as specified and directed. Make- zoloto , Cat No-41023/HSN Code-84813000 or equivalent make - Leader/ Laxmi etc as specified in the particular specification.

S&F Gun metal check valve 100 mm dia heavy duty (IS-778-84+1 marked) screwed end including rubber gasket joints, nuts, bolts etc after lifting of suction pipe from UG sumps and lowering the same including taking down old one complete all as specified and directed. Make- zoloto , Cat No-1009/HSN Code-84813000 or equivalent make - Leader/ Laxmi etc as specified in the particular specification.

S&F Gun metal check valve 80 mm dia heavy duty (IS-778-84+1 marked) screwed end including rubber gasket joints, nuts, bolts etc after lifting of suction pipe from UG sumps and lowering the same including taking down old one complete all as specified and directed. Make- zoloto , Cat No-1009/HSN Code-84813000 or equivalent make - Leader/ Laxmi etc as specified in the particular specification.

S&F Gun metal check valve 50 mm dia heavy duty (IS-778-84+1 marked) screwed end including rubber gasket joints, nuts, bolts etc after lifting of suction pipe from UG sumps and lowering the same including taking down old one complete all as specified and directed. Make- zoloto , Cat No-1009/HSN Code-84813000 or equivalent make - Leader/ Laxmi etc as specified in the particular specification.

S&F Gun metal check valve 40 mm dia heavy duty (IS-778-84+1 marked) screwed end including rubber gasket joints, nuts, bolts etc after lifting of suction pipe from UG sumps and lowering the same including taking down old one complete all as specified and directed. Make- zoloto , Cat No-1009/HSN Code-84813000 or equivalent make - Leader/ Laxmi etc as specified in the particular specification.

S&F 150mm bore Cast iron non return valve double flanged (class-'B) high pressure conforming to IS-5312 ete with nuts, bolts & washer gaskets etc including taking down the old unserviceable one complete all as specified and directed. Make : Kirloskar/leader/Venus

S&F 100mm bore Cast iron non return valve double flanged (class-'B) high pressure conforming to IS-5312 ete with nuts, bolts & washer gaskets etc including taking down the old unserviceable one complete all as specified and directed. Make : Kirloskar/leader/Venus

S&F 50 mm bore Gun metal gate valve as per IS : 778-84, marked Class-2 Pressure tested 2.4 Mpa with iron wheel head, screwed both ends for iron pipes or for unions as in repair complete as all specified and as directed. Make : Kirloskar/leader/Venus

S&F 40 mm bore Gun metal gate valve as per IS : 778-84, marked Class-2 Pressure tested 2.4 Mpa with iron wheel head, screwed both ends for iron pipes or for unions as in repair complete as all specified and as directed. Make : Kirloskar/leader/Venus

S&F 25 mm bore Gun metal gate valve as per IS : 778-84, marked Class-2 Pressure tested 2.4 Mpa with iron wheel head, screwed both ends for iron pipes or for unions as in repair complete as all specified and as directed. Make : Kirloskar/leader/Venus

S&F 20 mm bore Gun metal gate valve as per IS : 778-84, marked Class-2 Pressure tested 2.4 Mpa with iron wheel head, screwed both ends for iron pipes or for unions as in repair complete as all specified and as directed. Make : Kirloskar/leader/Venus

S&F Water pressure gauge 100mm dia in the main line of pump including necessary dirlling welding, taping/Threading of existing line etc with taking out unserviceable one complte all as specified directed by Engr-in-Charge.

Leakage detection in GI water mains upto 150mm bore and necessary repairs including cutting, threading for addition/alteration and insertion necessary of fittings like tee,elbow, branches pieces etc complete all as directed by the Engr-in-Charge.

Materials and Labour for Construction of brick masonary valve pit chamber of size 1050x1050x1050mm internal dimension using sub class-'B' bricks in CM (1:6) plastering in cement mortar (1:4) externally & internally extended to 15 cm below ground level including PCC bed 10 cm thick in PCC 1:3:6 Type C2 with MS frame fabricated by angle of size 40 x 40 x 6mm complete with top cover of 3 mm thick MS sheet & locking arrangement and painting with two coats of synthetic enamel over a coat of red oxide primer including demolition of old unserviceable damged valve pit complete all as specifed and directed.

Construction of brick masonary valve pit chamber of sizse 900 x 900 x 900 mm internal dimension using sub class-'B' bricks in CM (1:6) plastering in cement mortar (1:4) externally & internally extended to 15 cm below ground level including PCC bed 10 cm thick in PCC 1:3:6 Type C2 with MS frame fabricated by angle of size 40 x 40 x 6mm complete with top cover of 3 mm thick MS sheet & locking arrangement and painting with two coats of synthetic enamel over a coat of red oxide primer including demolition of old unserviceable damged valve pit complete all as specifed & directed.

Construction of brick masonary valve pit chamber of sizse 600 x 600 x 600 mm internal dimension using sub class-'B' bricks in CM (1:6) plastering in cement mortar (1:4) externally & internally extended to 15 cm below ground level including PCC bed 10 cm thick in PCC 1:3:6 Type C2 with MS frame fabricated by angle of size 40 x 40 x 6mm complete with top cover of 3 mm thick MS sheet & locking arrangement and painting with two coats of synthetic enamel over a coat of red oxide primer including demolition of old unserviceable damged valve pit complete all as specifed & directed.

M&L Rewinding electric motor submersible pump set, single phase ,415 volts 50- HZ of capacity 10 HP with supper enamel copper wire of same size and heating and vernishing after removing the old burnt out winding ressembling, re-connecting etc testing & commissioning complete all as specified and directed by Engr-in-Charge.

Repairs Panel board for pump of any size/ any type by disconnecting and taking out old unserviceable wires and spare parts and rewiring the same with same size of copper wire, replacment of nut & bolts with washers,cleaning with blower, painting with one coat of synthetic enamel painting of existing colour including necessary preparation of surfaces including testing and commisioning complete all as specified and directed by Engr-in-Charge. Note:- Any other Electrical fittings connecting to panel board should be measured and paid separately.

Supply and fix Fully automatic star delta starter with steel enclosure AC 3 phase, 415 volt 50-60 Hz, type MN-25F relay range 14-23 Amps suitable for 30 HP pump motor set fixing on existing LT panel board including taking down old one complete all as specified and as directed. Make:- L&T Cat Part No.SS94364,C&S-BE3-D3235N322 or equivalent make of Schneider / Siemens / ABB.etc as specified in the particular specification.

Supply and fix Fully automatic star delta starter with steel enclosure AC 3 phase, 415 volt 50-60 Hz, type ML-1.5F relay range 20-32Amps fixing on existing LT panel board including taking down old one complete all as specified and as directed. Make:- L&T Cat Part No.SS90705 or equivalent make of Schneider / Siemens / ABB. / C&S etc as specified in the particular specification.

Supply and fix Fully automatic star delta starter with steel enclosure AC 3 phase, 415 volt 50-60 Hz, type ML-2.0F relay range 20-32Amps fixing on existing LT panel board including taking down old one complete all as specified and as directed. Make:- L&T Cat Part No.SS91855 or equivalent make of Schneider / Siemens / ABB/C&S etc as specified in the particular specification.

Supply and fix 3 pole Power Contactor type ML-4, 32A capacity, 2NO + 2NC, 415 V ratings fixing on existing LT panel board including taking down old one complete all as specified and as directed. Make:- L&T Cat No SS90910 or equivalent make of Schneider / Siemens / ABB./C&S etc as specified in the particular specification.

Supply and fix 3 pole Power Contactor type ML-3, 32A capacity, 2NO + 2NC, 415 V ratings fixing on existing LT panel board including taking down old one complete all as specified and as directed. Make:- L&T Cat No SS90721, C&S-TC1D4011EN5+TA-DN11or equivalent make of Schneider / Siemens / ABB.etc as specified in the particular specification.

Supply and fix 3 pole Power Contactor type ML-2, 32A capacity, 2NO + 2NC, 415 V ratings fixing on existing LT panel board including taking down old one complete all as specified and as directed. Make:- L&T Cat No SS90701, C&S-TC1D3210EN5+TAI-DN13 or equivalent make of Schneider / Siemens / ABB.etc as specified in the particular specification.

Supply and fix 3 pole Power Contactor type ML-1.5, 32A capacity, 2NO + 2NC, 415 V ratings fixing on existing LT panel board including taking down old one complete all as specified and as directed. Make:- L&T Cat No SS91851, C&S-TC1D2510EN5+TA1-DN22 or equivalent make of Schneider / Siemens / ABB.etc as specified in the particular specification.

Supply and fix Electronic timer ET-100/ST-100, 415 V, 50 Hz fixing on existing LT panel board including taking down old one complete all as specified and as directed. Make:- L&T Cat No ST80329OOOO or equivalent make of Schneider / Siemens / ABB.etc as specified in the particular specification.

Supply and fix Electronic timer GT-200, 415 V, 50 Hz fixing on existing LT panel board including taking down old one complete all as specified and as directed. Make:- L&T Cat No SS91270 or equivalent make of Schneider / Siemens / ABB.etc as specified in the particular specification.

Supply and fix Single Phase stater relay range 11-18 amps fixing on existing LT panel board including taking down old one complete all as specified and as directed. Make:- L & T Cat No XM81809OOOO or equivalent make of Schneider / Siemens / ABB.etc

Supply and fix PVC insulated round sheathed , copper conductor flexible ,industrial cable 3 core 6.0 sqmm suitable for pump/motor set, 1100 volts grade conforming to IS-694 including taking out the old unserviceable one complete all as specified and directed.

Supply and fix PVC insulated round sheathed , copper conductor flexible ,industrial cable 3 core 4.0 sqmm suitable for pump/motor set, 1100 volts grade conforming to IS-694 including taking out the old unserviceable one complete all as specified and directed.

Dismantling the channel base and taking out the pump & motor of capacity 7.5/10/12.5 HP AC 3 phase 415 volt disconnecting the pump motor, opening the pump, cleaning derusting thoroughly, machining inside body of the pump & repairing by replacement collar rings, gaskets, Impeller locknuts, shaft key etc re-assembling the pump including installtion & testing commissioning complete all as specified and directed. Note:- Spare parts other than minor spares required to be replaced shall be measured and paid seperately under 'Supply only' items below.

Stainless Steel Shaft

Brass Impeller

Gun metal Bush

Pump Bearing

Motor Bearing

Coupling pulley of Pump motor

Dismantling the channel base and taking out the pump & motor of capacity 15/20 HP AC 3 phase 415 volt disconnecting the pump motor, opening the pump, cleaning derusting thoroughly, machining inside body of the pump & repairing by replacement collar rings, gaskets, Impeller locknuts, shaft key etc re-assembling the pump including installtion & testing commissioning complete all as specified and directed. Note:- Spare parts other than minor spares required to be replaced shall be measured and paid seperately under 'Supply only' items below.

Stainless Steel Shaft

Brass Impeller

Gun metal Bush

Pump Bearing

Motor Bearing

Coupling pulley of Pump motor

Dismantling the channel base and taking out the pump & motor of capacity 30 HP AC 3 phase 415 volt disconnecting the pump motor, opening the pump, cleaning derusting thoroughly, machining inside body of the pump & repairing by replacement collar rings, gaskets, Impeller locknuts, shaft key etc re-assembling the pump including installtion & testing commissioning complete all as specified and directed. Note:- Spare parts other than minor spares required to be replaced shall be measured and paid seperately under 'Supply only' items below.

Stainless Steel Shaft

Brass Impeller

Gun metal Bush

Pump Bearing

Motor Bearing

Coupling pulley of Pump motor

Dismantling the channel base and taking out the pump & motor of capacity 5 HP AC 3 phase 415 volt disconnecting the pump motor, opening the pump, cleaning derusting thoroughly, machining inside body of the pump & repairing by replacement collar rings, gaskets, Impeller locknuts, shaft key etc re-assembling the pump including installtion & testing commissioning complete all as specified and directed. Note:- Spare parts other than minor spares required to be replaced shall be measured and paid seperately under 'Supply only' items below.

Stainless Steel Shaft

Brass Impeller

Gun metal Bush

Pump Bearing

Motor Bearing

Coupling pulley of Pump motor

Dismantling the channel base and taking out the pump & motor of capacity 75 HP AC 3 phase 415 volt disconnecting the pump motor, opening the pump, cleaning derusting thoroughly, machining inside body of the pump & repairing by replacement collar rings, gaskets, Impeller locknuts, shaft key etc re-assembling the pump including installtion & testing commissioning complete all as specified and directed. Note:- Spare parts other than minor spares required to be replaced shall be measured and paid seperately under 'Supply only' items below.

Stainless Steel Shaft

Brass Impeller

Gun metal Bush

Pump Bearing

Motor Bearing

Coupling pulley of Pump motor

Material and Labour Rewinding of electric motor AC 3phase 415 volts 50- HZ of capacity 15/20 HP with supper enamel copper wire of same size and heating and vernishing after removing the old burnt out winding including replacement of bearing etc testing & commissioning complete all as specified and directed by Engr-in-Charge.

Material and Labour Rewinding of electric motor AC 3phase 415 volts 50- HZ of capacity 75 HP with supper enamel copper wire of same size and heating and vernishing after removing the old burnt out winding including replacement of bearing etc testing & commissioning complete all as specified and directed by Engr-in-Charge.

Material and Labour Rewinding of electric motor AC 3phase 415 volts 50- HZ of capacity 5 HP with supper enamel copper wire of same size and heating and vernishing after removing the old burnt out winding including replacement of bearing etc testing & commissioning complete all as specified and directed by Engr-in-Charge.

Material and Labour Cutting PCC foundation for taking out the channel base replacing the same with new channel base complete foundation with PCC 1:4:8 D2 type, using 40mm graded crushed stone aggregate and fixed the pump and motor with grouting bolt of 9'' long -4Nos complete all as specifed and directed by Engr-in-Charge.

Lifting and Servicing of submersible pump motor set, 3 phase of capacity 10 HP for minor repair and reassembling complete after repair in existing place / position re-connection, testing and commissiong complete all as directed by Engineer-in-Charge. Note: (i) Rates are inclusive of transportation charges for to and fro, cost of petty item like grease, packing materials etc.

Supply only calcium based granular disinfectant for water treatment, (Chlorine 65%- 70%,) complete all as directed by Engineer-in-Charge. Make : Aquafit / ALTOCH GP/Chlorotech-90,

Supply and fixing bearing for pump or motor No. (6805)/(6808)/(6809), complete all as directed by Engineer-in-Charge. Make : SKF or equivalent.

Supply and fixing bearing for pump or motor No. (6504)/(6506)/(6507), complete all as directed by Engineer-in-Charge. Make : SKF or equivalent.

Supply and fixing bearing for pump or motor No. (6208),complete all as directed by Engineer-in-Charge. Make : SKF or equivalent.

De-watering of existing RCC UG water sump size 150000 Gln capacity at 80 feet staging cleaning the overhead tank with wire brush,cloth ,bleaching powder,removing alll dirt scale from tank and from mouths of circulating pipes etc through drain pipe or by manually including writing with white paint in tank wall as "TANK CLEANED ON" with date ,month and year with a minimum 10 CM height capital lettrs/numbers and conducting all connections (if any) after cleaning and testing at different multi-storeyed buildings at BM camp complete all as specified and directed by Engineer-In-Charge.(a) To drain out the water by using exit valve or our own high capacity dewatering system. (b) Cleaning all the algae formation insied the tank by using a laboratory tested branded chemical of the company and scrubbing the walls of the tanks.(c) Fresh water cleaning by high speed jet pump (d) first bacteria screening is desertification by using a govt laboratory certified branded halogen compound. (e) Cleaning of the floor of the water tank by industrial vacuum cleaner. (f) The second bacteria screening and sterlizing method by using ultra violet ray with in the tank and kills all suspended bacteria. (g) Cleaning the third bacteria screening and sterilize the floor of the water tank by using laboratory certified branded strong oxidizing agent.

All as per item No 100 here-in-before but UG capacity upto100000 Gln.

All as per item No 100 here-in-before but UG sump capacity upto 50000 Gln.

All as per item No 100 here-in-before but UG capacity upto 25000 Gln.

All as per item No 100 here-in-before but UG capacity upto 20000 Gln.

All as per item No 100 here-in-before but UG capacity upto 10000 Gln.

De-watering of existing RCC OH water tank size 100000 Gln capacity at 80 feet staging cleaning the overhead tank with wire brush,cloth ,bleaching powder,removing all dirt scale from tank and from mouths of circulating pipes etc through drain pipe or by manually including writing with white paint in tank wall as "TANK CLEANED ON" with date ,month and year with a minimum 10 CM height capital lettrs/numbers and conducting all connections (if any) after cleaning and testing at different multi-storeyed buildings at BM camp complete all as specified and directed by Engineer-In-Charge.(a) To drain out the water by using exit valve or our own high capacity dewatering system. (b) Cleaning all the algae formation insied the tank by using a laboratory tested branded chemical of the company and scrubbing the walls of the tanks.(c) Fresh water cleaning by high speed jet pump (d) first bacteria screening is desertification by using a govt laboratory certified branded halogen compound. (e) Cleaning of the floor of the water tank by industrial vacuum cleaner. (f) The second bacteria screening and sterlizing method by using ultra violet ray with in the tank and kills all suspended bacteria. (g) Cleaning the third bacteria screening and sterilize the floor of the water tank by using laboratory certified branded strong oxidizing agent.

Cleanning of PVC water tank of capacity exc 500 ltrs & n.exc 1000 ltrs by taking down existing inlet and outlet pipes setting aside the tank and cleaning rubbing down and removing all scales and dirt mud and any other foreign materials etc from inside and outside the tank with bleaching powder and refixing the tank in its original position and inlet outlet pipe including writing letter on PVC tank as 'TANK CLEANED ON---------'complete all as specified and directed by Engr-in-charge.

All as per item No 107 here in before but capacity from 1000 to 2000 Ltrs

All as per item No 107 here in before but capacity from 2000 to 5000 Ltrs

De-watering of existing RCC open water sump for fountain cleaning the tank with wire brush,cloth ,bleaching powder,removing alll dirt scale from tank through water pump or by manually Including repairs and replacement of brass nozales,Including scraping of old painted existing surface for painting with one coat of Red oxide and Sky blue paint suitable for fountains pipeline, pump motor etc complete all as directed by Engr-in-Charge.

S KUNDU AND CO

MS JYOTI INDUSTRIES

M A ENTERPRISES

SPECIAL CONCRETE AND CONSTRUCTION CO.

K.P Construction Co

R T BUILDERS

INDIA ELECTRICAL EQUIPMENTS