REPAIR/MAINT OF CI/DI/GI PIPE LINES AND FITTINGS, CENTRIFUGAL PUMPS SETS, MONOBLOCK PUMP SETS, BOOSTER PUMPS, SUBMERSIBLE PUMPS SETS DOSING PLANTS, CI VALVES AND SWIMMING POOL IN E/M WATER SUPPLY INSTALLATIONS AT BARRACKPORE UNDER GE BARRACKPORE

Amount

Excavation in trenches in soft / loose soil not exceeding 1.5 metre wide and not exc 1.5 metre in depth and getting out for taking out / laying of GI / CI pipe line and making bottom surfaces of excavation leveledand to a gradient complete all as specified and directed .

Returning, filling in trenches with excavated soil including spreading, levelling, watering and well ramming in layers not exceeding 25 cm complete all as specified and directed.

Removing surplus soil / spoil to a distance not exceeding 50 metre away and depositing where directed at a level not exceeding 1.5 metre above the starting point complete all as specified and directed .

Taking down or taking up GI pipe and Supply and laying in trenches GI tubing 'Medium grade' 80 mm bore, with all fittings complete all as specified and as directed. (Note: Excavation, returning, filling & removing of earth work shall be measured and paid seperately).

Ditto all as per Item No. 4.00 above but 50mm bore complete all as specified and directed.

Ditto all as per Item No. 4.00 above but 40mm bore complete all as specified and directed.

Ditto all as per Item No. 4.00 above but 25mm bore complete all as specified and directed.

Ditto all as per Item No. 4.00 above but 20mm bore complete all as specified and directed.

Ditto all as per Item No. 4.00 above but 15mm bore complete all as specified and directed.

Taking up or down Cast Iron/ Ductile Iron water mains of size 250 mm bore, any class including all fittings, with spigot and socket ends and rubber gasket joints, complete all as specified and directed. (Note: Excavation, returning, filling and removing of earth works shall be measured and paid seperately)

Supply and laying in trenches of DI pipe K7 of size 250 mm bore, with tighten joint spigot and socket ends complete all as specified and as directed. (Note: Excavation, returning, filling and removing of earth works shall be measured and paid seperately).

Taking up or down Cast Iron/ Ductile Iron water mains of size 100mm bore, any class including all fittings, with spigot and socket ends and rubber gasket joints, complete all as specified and directed. (Note: Excavation, returning, filling and removing of earth works shall be measured and paid seperately)

Supply and laying in trenches of DI pipe K7 of size 100mm bore, with tighten joint spigot and socket ends complete all as specified and as directed. (Note: Excavation, returning, filling and removing of earth works shall be measured and paid seperately).

Taking up or down Cast Iron/ Ductile Iron water mains of size 150mm bore, any class (including all fittings), with spigot and socket ends and rubber gasket joints, complete all as specified and directed. (Note: Excavation, returning, filling and removing of earth works shall be measured and paid seperately)

Supply and laying in trenches of DI pipe K7 of size 150mm bore, with tighten joint spigot and socket ends complete all as specified and as directed. (Note: Excavation, returning, filling and removing of earth works shall be measured and paid seperately).

Cleaning of existing S/S pipe joints, recovering lead, finding reason for leakage and Material and labour for run lead joints with all jointing materials such as Lead, rope manila etc as required at site.for following size of CI pipes :- (Note: Excavation, returning, filling and removing of earth works shall be measured and paid seperately)

250mm dia CI pipe

150mm dia CI pipe

100mm dia CI pipe

M&L for CI specials any type spigot and socket ends or flanged pipe as required at site (such as bend, taper, Tee, socket etc) Socket end/ flanged as ordered of size up to 150mm.( as per requirement of site to rectify the leakage) including taking down old unserviceable one complete all as specified and directed.

Taking down old unserviceable DI special and supply and laying for DI specials any type spigot and socket ends or flanged pipe as required at site (such as bend, taper, Tee, socket etc) Socket end/ flanged as ordered of size 80mm to 250mm bore( as per requirement of site to rectify the leakage).

Taking down old unserviceable and Material and labour for flanged joints with all accessories such as MS nuts, bolts, washers, gaskets rubber or fiber board complete.for following sizes of CI/DI Pipes :-

250mm dia CI/DI pipe

150mm dia CI/DI pipe

100mm dia CI/DI pipe

80mm dia CI/DI pipe

S&F of Sluice valve, both end flanged with CI operating wheel, stain less steel spindle etcas per latest IS specification, Class PN - 1.6 including necessory jointing and jointing materials such as gasket, nuts, bolts, washer etc complete including taking out unserviceable sluice valve of following size:-

Sluice valve of size 250mm dia

Sluice valve of size 150mm dia

Sluice valve of size 80mm dia

Taking down old unserviceable sluice valve of dia 250mm and repair of Sluice valve with replacement of spindle, glanpacking , nuts, bolts etc to serviceable of sluice valve complete all as specified and directed.

Taking down old unserviceable sluice valve of dia 150mm and repair of Sluice valve with replacement of spindle, glanpacking , nuts, bolts etc to serviceable of sluice valve complete all as specified and directed.

Taking down old unserviceable sluice valve of dia 100mm and repair of Sluice valve with replacement of spindle, glanpacking , nuts, bolts etc to serviceable of sluice valve complete all as specified and directed.

Taking down old unserviceable gunmetal gate valve and Supply and fixing of GM gate valves with iron wheel head, screwed both ends for iron pipes of following sizes:-

50mm dia gate valve

40mm dia gate valve

25mm dia gate valve

20mm dia gate valve

15mm dia gate valve

Taking down centrifugal pump of capacity 20 HP make Bareja, from its foundation by disconnecting the suction discharge lines and decoupling from motor and repair the pumps with the following works:- (a) Dismantling the pump assy carefully part by part, cleaning all rotary and stationary parts properly, display the items at pump house for inspection of Garrison engineer/ Engr- in- Charge.to ascertain the serviceability / unserviceability and requirement of renewal of parts. (b) Reassembling the Pump with existing serviceable parts and by replacing unserviceable parts including machining works where necessary for fitment of new parts for their smooth functioning. (c) Placing the pump at its foundation, couple with the motor, make ascentric for trouble free functioning, connecting suction and discharge lines and testing discharge of pump complete. Note: (i) Spare Parts if required shall be measured and paid seperately as "Supply Only" under relevant items. (ii) Labour charge for taking down and fixing of 'Supply Only' items are deemed to be included with quoted rate.

Ditto all as per item No 25.00 above but capacity of Pump 15 HP (Make: Bareja, Model-81 CV-3A)

Ditto all as per item No 25.00 above but capacity of Pump 30 HP (Make: Bareja, Model-99 CV-2A)

Ditto all as per item No 25.00 above but capacity of Pump 40 HP (Make: Bareja, Model-99 CV-2A)

Supply only following spare parts of centrifugal pump of make Bareja of capacity 20 HP:-

IMPELLER CI Part No 8100030404C for Pump Model 81C 4

GLAND FLANGE (SUC) CI Part No 8100030410 for Pump Model -81C 4A

GLAND FLANGE (DIS) CI Part No 8100030411 for Pump Model -81C 4A

Base Bush (Suc) GM Part No-81000304084

Base Bush (Dis) GM Part No-8100030409G

BEARING PER SET OF 2 NOS.STAN MAKE Part No 8100030421 for Pump Model- 81C 4A

Shaft SS Part No-8100030406S (Note for Item No. 29.01 to 29.07 : Materials of Item No. 29.01 to 29.07 to be incorporated in Item No. 25.00 here-in-before)

Supply only following spare parts of centrifugal pump of make Bareja capacity 15 HP:-

IMPELLER CI Part No 8103220304C for Pump Model 81CV 3A

GLAND FLANGE CI Part No 8103220309 for Pump Model 81CV 3A

Stage Bush GM Part No-8103220307G

BEARING PER SET OF 2 NOS.STAN MAKE Part No 8103220317 for Pump Model 81CV 3A (Note for Item No. 30.01 to 30.04 : Materials of Item No. 30.01 to 30.04 to be incorporated in Item No. 26.00 here-in-before)

Supply only following spare parts of centrifugal pump of make Bareja of capacity 30 HP & 40 HP:-

IMPELLER CI Part No 9903220204C for Pump Model -99 CV 2A

GLAND FLANGE CI Part No 9903220209 for Pump Model -99 CV 2A

Stage Bush GM Part No-9903220207G

Base Bush GM Part No-9903220208G

BEARING PER SET OF 2 NOS.STAN MAKE Part No 9903220217 for Pump Model -99 CV 2A

Shaft SS Part No-9903220206S

Rubber gasket cuppling for centrifugal pump of capcity 15 HP to 40 HP (Note for Item No. 31.01 to 31.07 : Materials of Item No. 31.01 to 31.07 to be incorporated in Item No. 27.00 & 28.00 here-in-before)

supply, installation, testing and commissioning of 30 HP monoblock pump & motor set 3 phase, 50 HZ, 415 V having min 40 m head and min discharge 22 including taking down old unserviceable pump complete all as specified and directed.

Fabricated from structural steel sections including, nuts, bolts, washers,welding, bending cold or hot,drilling holes for bolts, in any shape or size as indicated or directed and including preparation of surfaces and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

Lifting of submersible pump set complete of capacity (5 to 15 HP) along with colomn pipe (column pipe not exc 45 Mt with each pump) and all connected items, including disconnection of water and electric connection, testing pump, motor, keeping column pipes and other items in safe custody for reinstallation all as specified and directed.

Lowering of submersible pump set complete of capacity (5 to 15 HP) along with column pipe and all connected items, connecting water and electric connections complete all as specified & directed. (Note for Item No. 35.00 & 36.00 : (i) Repair of pump motor shall be measured and paid separately under appropriate items given here-in-after). (ii) Machinary and materials required for the testing shall be the responsibility of the contractor and cost on this effect shall deemed to be included in item No. 35.00 & 36.00. No extra cost shall be entertained by the department in this aspect.

Dismantling of submersible pump motor of capacity 5-15 HP, checking fitness of stator and rotar, machining where required, rewinding the statar with insulated winding wire of existing dia and turn to achieve desired rpm HP as per existing parameters all as specified & directed.

Dismantling of submersible pump motor of capacity 2-4 HP, checking fitness of stator and rotar, machining where required, rewinding the statar with insulated winding wire of existing dia and turn to achieve desired rpm HP as per existing parameters all as specified & directed.

Supply only the following spare parts of submersible pumps & motor to incorporate against item Nos.37.00 & 38.00 :-

GM bush suitable for KSB / CALAMA make submersible pump of any capacity and model as per requirement.

Impeller Key for KSB/ CALAMA make submersible pump set, cut to required length as per requirement.

Rubber seal for submersible pump as per existing.

Casing outer bowl for KSB/ CALAMA make submersible pump of any capacity and model as per requirement.

Discharge case for KSB / CALAMA make submersible pump of any capacity and model as per requirement of site.

Discharge case bearing suitable for KSB/ CALAMA make submersible pump of any capacity and model as per requirement.

Coupling for pump and motor suitable for KSB / CALAMA make submersible pump of any capacity and model as per requirement.

Sand guard rubber suitable for submersible pump of any size as per requirement.

Strainer suction case of submersible pump.

Thrust bearing suitable for KSB / CALAMA make submersible motor of capacity 5 to 25 HP and and model as per requirement.

Submersible cable flat 6 sqmm, 3 core copper conductor PVC insulated & PVC sheathed.

Multi-stranded flexible steel rope 10mm dia superior quality. (Make : Usha Martine or equivalent.)

GI holder clamp ("U" bolt) 10mm dia, 50mm long to hold the steel. (Note for Item No. 39.01 to 39.13 : Materials of Item No. 39.01 to 39.13 to be incorporated in Item No. 37.00 & 38.00 here-in-before)

S&F in repairs of 3/8 inches white suction / discharge tubing suitable for Altoc Dozing pump complete all as specified and directed.

S&F in repairs of coil 230 Volt, 50 HZ Part No 11143H suitable for dozing pump complete all as specified and directed.

S&F in repair of Spring for EPU part No M01257S for Dozing pump complete all as specified and directed.

S&F in repair of Speed Knob Part No. 20461 for Dozing pump complete all as specified and directed.

S&F in repair of Diaphragm Part No. 30981 for Dozing pump complete all as specified and directed

S&F in repair of Ring sealTeflon Part No 30981 for Dozing pump complete all as specified and directed.

S&F in repair of Ball ceramic Pat No 10338 complete all as specified and directed.

S&F in repair of Agitator motor 220 Volts, single phase 50 HZ 120 Watts Capacity, 900 RPM complete all as specified and directed.

S&F in repair of Foot valve assembly Part No 906967 suitable for Dozing pump complete all as specified and directed.

S&F in repair of Fuse suitable for dozing pump complete all as specified and directed. Make:-AQUAFIT(VARIMA) / RMCO .

S&F in repair of Speed Shaft Part No35743S suitable for dozing pump complete all as specified and directed. Make:-AQUAFIT(VARIMA) / RMCO .

S&F in repair of Pulser Assy. Part No0357085 suitable for dozing pump complete all as specified and directed. Make:-AQUAFIT(VARIMA) / RMCO .

S&F in repair of Shim EPU Part No. M01258 suitable for dozing pump complete all as specified and directed. Make:-AQUAFIT(VARIMA) / RMCO .

S&F in repair of Antisyphone Valve Assy. Part No906167 suitable for dozing pump complete all as specified and directed. Make:-AQUAFIT(VARIMA) / RMCO .

S&F in repair of Shaft & Impeller suitable for dozing pump complete all as specified and directed. Make:-AQUAFIT(VARIMA) / RMCO .

S&F in repair of single head suitable for dozing pump complete all as specified and directed. Make:-AQUAFIT(VARIMA) / RMCO .

S&F in repair of Dosing Injector suitable for dozing pump complete all as specified and directed. Make:-AQUAFIT(VARIMA) / RMCO.

S&F in repair of Pipe Line with Filter suitable for dozing pump complete all as specified and directed. Make:-AQUAFIT(VARIMA) /RMCO .

S&F in repair of Service Tank suitable for dozing pump complete all as specified and directed. Make:-AQUAFIT(VARIMA) / RMCO .

Repair / rewinding of induction motor of capacity 15 to 20 HP, of any make, three Phase, 430 Volt, AC 50 Hz, by taking out burnt winding wires from core, cleaning throughly and rewinding the same with bare insulated copper winding wire of proper gauge and burnt to achieve required rpm HP and connected with the system. Existing DE and NDE bearing to be replaced with new bearing (SKF / NBC) and corresponding is deem to be inluded with unit rate complete all as specified and directed.

Repair / rewinding of induction motor of capacity 30-40 HP, of any make, three phase, 430 Volt, AC 50 Hz, by taking out burnt winding wires from core, cleaning throughly and rewinding the same with bare insulated copper winding wire of proper gauge and burnt to achieve required rpm HP and connected with the system. Existing DE and NDE bearing to be replaced with new bearing (SKF / NBC) and corresponding is deem to be included with unit rate all as secified and directed.

Taking down old unservieable fully automatic star delta starter and Supply, and fixing fully autometic star delta starter Submercible pump controller in sheet metal enclouser, Three Phase, 430 Volt, 50 Hz, Relay range 6.0-9.3 Amp suitable for motor capacity up to 10 HP, 4.5KW complete all as specified and directed. ( Make :-BHC Cat No-NASAJLEN)

S&F in repairs of three phase power contractors of capacity ML-1.5 including control wiring etc complete all as specified and directed.

Taking down old unserviceable and Construction of valve pit chamber with brick masonary with sub class 'B' bricks in cement mortar (1:4) and necessary PCC type D2 (1:4:8) as in foundation and 100mm thick PCC (1:3:6) type C1 for floor and 15mm thick plastering on brick work in CM (1:4) mixed with WPC as per manufacturer's instructions including necessary earthwork in soft/loose soil etc work having internal dimension 90cm x 90cm x 90cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with to coats black bituminous paint over a coat of anti corrosive red oxide primer complete all as specified and directed.

Taking down old unserviceable and Construction of valve pit chamber with brick masonary with sub class 'B' bricks in cement mortar (1:4) and necessary PCC type D2 (1:4:8) as in foundation and 100mm thick PCC (1:3:6) type C1 for floor and 15mm thick plastering on brick work in CM (1:4) mixed with WPC as per manufacturer's instructions including necessary earthwork in soft/loose soil etc work having internal dimension 60cm x 60cm x 60cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with to coats black bituminous paint over a coat of anti corrosive red oxide primer complete all as specified and directed.

Taking down old unserviceable and Construction of valve pit chamber with brick masonary with sub class 'B' bricks in cement mortar (1:4) and necessary PCC type D2 (1:4:8) as in foundation and 100mm thick PCC (1:3:6) type C1 for floor and 15mm thick plastering on brick work in CM (1:4) mixed with WPC as per manufacturer's instructions including necessary earthwork in soft/loose soil etc work having internal dimension 120cm x 120cm x 120cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with to coats black bituminous paint over a coat of anti corrosive red oxide primer complete all as specified and directed.

Taking down Existing unserviceable Non return valve of size 100mm and Supply and fixing Non Return valve Cast Iron body spring loaded with Brass gate of size 100mm with necessary gasket, Bolts, Nuts, washer etc all as specified and as directed.

M&L for disconnecting the centrifugal/Booster pump and motor after disconnection of mechanical tyre coupling, suction/discharge pipe line and unbolting from foundation base plate loading/unloading the pump and motor to the veh and transportation to workshop for repair/replacement/rewinding with super enamelled copper conductorwires 22 gauge maint and incl dismantle & re-assembling the pump setting the impeller & housing for for smooth running, replacement of packing gaskets etc. after repair/replacement/maint transportation back from workshop to site, including re-assembling the same, recoupling the pump with motor on base frame, checking the alignmment with motor, testing & commisioning on completion and checking upto the satisfaction of Engr-in-Charge ot the following capacity :- (Note :- Unserviceable spare parts of pump set (like bearing, shaft, impeller), will be measured and paid separately.)

Above 2HP upto 5 HP centrifugal pump

Upto 2 HP centrifugal pump

S&F of mild steel screw bolts (machine made) with hexagonal or square heads at one end and screwed the other,or screwed bothe ends, each screwed end to be fitted with washers and one hexagonal or square nut, length of bolts exc 22.5 cm and n exc 30 cm long and dia of neck 16 to 20 mm dia using for fundation/base platform for fixing of existing centrifugal pump set, complete all as specified and directed.

Cutting & Screwing extg any type and size for alterations or additionals or lengthening screw on pipe to from connector and done in position without taking down all as specified and directed.

S&F of 80mm CI Foot Valve Strainer (Flange Type) with screwed both ends for iron pipes including taking down old unserviceable foot valve complete all as specified and directed.

M&L for attending water supply breakedown/pipe line leakage and pipe line blockage in bldgs in and including replacing of Tee,elbow,sockets, nipple & foot valve etc as per requirement in pipe line 20 to 25 mm dia including necessary excavation earth work if required complete all as specifitd and directed.

Ditto all as per item No 71.00 here in above but 40 to 65 mm dia complete all as specified and directed.

Ditto all as per item No 71.00 here in above but 80-250 mm dia complete all as specified and directed.

Collecting the sample of water of required quantity in bottle/kit from different point submitted duly levelled the source through Engineer-in-Charge for forwarding to the test house and carrying out chemical testing of water for iron, PH value, hardness, turbidity, chloride, fluoride, arsenic test and submitting the test report in triplicate done from NABL & ISO 17025 accredited laboratory/ National Test House/Govt. approved laboratory complete all as specified and as directed. (NOTE: Sample of water shall be collected and tested quarterly.)

Collecting the sample of water of required quantity in bottle/kit from different point submitted duly levelled the source through Engineer-in-Charge for forwarding to the test house and carrying out bacteriological test for water sample quarterly and submitting the test report in triplicate done from NABL & ISO17025 accredited laboratory / National test house/Govt. approved laboratory complete all as specified and as directed. NOTE: Sample of water shall be collected and tested quarterly.

M&L for Collection of Treated Sewage water sample (quarterly) from Sewage Treatment Plants of 350 KLD capacity from Kanchrapara Military Station and carry out following test from Govt. Laboratory or any NABL approved laboratory complete all as specified and directed. (a) B.O.D. (Biochemical Oxygen Demand) (b) C.O.D. (Chemical Oxygen Demand) (c) T.S.S. (d) Residual free chlorine, mg/ltr (e) PH value, Oil and Grease (f) Total Coli from Organisms per 100 M (MPN) (g) T O C (Total Organic Carbon)

S&F for spare parts for indoor type LT Panel Board including taking down old unserviceable one, the following spare parts :-

MCCB, 3 pole ,415 volt ,DM125 Amps 35 KA

Contactor ML -2,32 A,AC3,415 Volt , 50 Hz

Contactor ML -3,40 A,AC3,415 Volt , 50 Hz

Single phasing preventer VSP -3 system supply 240 V 50 Hz

LED phase Indicator lamp (R,Y,B) - 03 Set

Digital type AC ammeter, range 100-1650 AAC, supply 240 Volt, input 0-5 AAC,

M&L for complete cleaning the area of water supply installation, DG set installations near by OHT including cutting of grass, dismantaling of small plants/ vgitation etc surrounding of installations /stores yeard area upto 1000 sqmtr etc as per requirement time to time (i.e twice in one months for each installation) complete all specified and directed.

M&L for applying two coats of synthetic enamel paint (1st grade quality) over a coat of red oxide primer after complete removal of existing paint and preparation of old steel surfaces of any description over 10cm width or girth complete all as specified and directed.

Repairing and servicing of Air compressors by changing of compressor oil and repairing of motor and starter with replacement of defective parts. Note: (i) Spare Parts if required shall be measured and paid seperately as "Supply Only" under relevant items. (ii) Labour charge for taking down and fixing of 'Supply Only' items are deemed to be included with quoted rate.

Supply only the following as under:

V- Belt.

Air pressure gauge

Ball bearing for electric motor

Compressor oil

GM Butterfly valve 15 mm dia (Note for Item No. 81.01 to 81.05 : Materials of Item No. 81.01 to 81.05 to be incorporated in Item No. 80.00 here-in-before)

S&F of 15 mm bore PVC nylon braided pipe including taking down unserviceable one complete all as specified and directed.

Boaring holes 20m deep in soil for underreamed piles and getting out and disposal of spoil to a distance of n exc 50m horizontally under Road without damaging the surface of road (minimum 1.0 Mtr bellow the road surface) with the help of GI tubing of any dia not exc 200 mm dia for passing of UG cable/GI/CI Pipe all as specified and as directed.(GI Pipe laid shall be measured seperately)

Supply only chlorine test kit with colored ample complete with all testing fitment and OT solution in rexine finish box all as specified & directed.

Supply only OT solution for chlorine test (500ml pack)

PUNAM ENTERPRISE

N C DUTTA

B.N. SADHUKHAN

RISING ENTERPRISE

PRESCIENCE TECHNO INDUSTRIES

BANERJEE ENTERPRISE

NANDY ENTERPRISE