REPAIR AND MAINTENANCE TO PUMP SETS, MOTOR, CHLORONOME PLANTS AND WATER TREATMENT PLANTS AT 20 WING, 273 SU AND 46 WEU AFS BAGDOGRA UNDER GE AF BAGDOGRA

Amount

M & L for Taking out existing filter media like sand, gravel & ferminex from filtration plant of capacity 10,000 gallon per hour including soda & Alum Pots & removing from site and cleaning the internal surfaces of filtration plant with soda & Alum Pots with using PVC/Steel wire brushes to remove all scales, iron particles and finally clay & other foreign particles with clean water complete all as specified and as directed.

All as per ser item No. 1.00 above but capacity 6000 gallon per hour.

Taking out existing unserviceable PVC nozzles and Supply and fix new PVC double deck type PP strainer nozzle of size 10mm to 15mm (3/8” to ½” inch) dia, push type complete all as specified and as directed (Make: RMCO/ASHFORD or equivalent ).

M & L for preparation of old painted internal steel surfaces of Filtration plant shell and painting with one coat of black bituminous paint suitable for drinking purpose of area exceeding 10 cm in width or girth not otherwise described complete all as specified and as directed.

M & L for preparation of old painted external surface of Filtration Plant shell and painting with first quality of synthetic enamel (gray shead) paint exceeding 10 cm in width or girth not otherwise described complete all as specified and directed.

M& L for packing of following sizes of new filter media in layers of approved quality obtained from ‘Barakar River’ complete all as specified and as directed :- Gravel of size 12 mm to 25 mm

All as per ser item No. 6.00 above but Gravel of size 6 mm to 12 mm

All as per ser item No. 6.00 above but Gravel of size 3 mm to 5 mm

All as per ser item No. 6.00 above but Sand of size 16/30 mesh

M & L for packing of chemical of ‘Feriminex’(MNO2) catalytic agent of size 1/16”x1/32 inches in layers complete all as specified and as directed.

Taking water sample for chemical analysis test for portability of water from approved Govt lab like National Test house Kolkata /RV Bridge Kolkata complete all as specified and as directed.

Replacement of unserviceable water pressure gauge with new pressure gauge capacity 7 kg/sqcm to 10 kg/sqcm complete all as specified and as directed (Make : RMCO/OASIS).

Taking out old unserviceable rubber gasket from position with taking out of nuts, bolts etc and S&F New rubber gasket of size 75cm outer dia, 3mm thick rubber sheet of approved quality fixed with suitable size & dia mild steel machine made nuts, bolts & washers of required size & numbers complete all as specified and as directed. (Note : Nuts, bolts & washers shall be measured & paid separately under relevant item here-in-before).

All as per item ser No.13.00 above but of size 45cm outer dia.

S&F mild steel machine made nuts, bolts & washers of size 15mm(5/8”) dia and 75mm (3”) long or nearest suitable sizes for top cover and side cover of Soda /Alum pot complete all as specified and as directed.

Taking down old unserviceable slucie valve from existing position and supply and fixing cast iron sluice valve conformig to IS - 14846 PN 1.6 clockwise dosing with flanged ends and iron wheel including necessary joints by means of bolts, nuts washers and rubber gaskets complete all as specified for 150 mm bore pipe Make - KIRLOSKAR/ BIR/ RMCO/VENUS or equivalent

All as per ser item No. 16.00 above but for 100 mm dia

All as per ser item No. 16.00 above but for 80 mm dia

Lifting and taking out complete submersible pump set 5 HP to 20 HP alongwith the column pipes with the help of chain pulley block from borewell well after disconnecting electrical connections from panel,disconnecting from suction and delivery pipe lines,disconnecting column pipes,testing electric motor to ensure its actual condition,seperating pump & motor from coupling,reassembling and lowering pump & motor into bore well complete,connecting,testing and commissioning alongwith connected items such as MS column pipe,cable,re-fixing after receiving repaired and tested submersible pump with new nuts & bolts,rubber packing with proper alignment and making electrical connection,binding of cable with column pipe with nylon rope complete including testing all as specified.

Transportation of submersible pump sets 3 phase any make and capacity 5 to 15 HP from pump house to contractor work shop for carry out necessary repair work to pump set submersible and transporting it back to site of water supply installation of AF Stn area.

Dismantling of submersible motor any make and any capacity 5 HP to 15 HP and reassembling complete after carry out necessary repair work & testing complete for smooth working to entire satisfaction of Engineer in charge. Note :New parts/components to be replaced shall be measured and paid separately under supply only.

M&L for rewinding of submersible motor of any make and capacity as mentioned below existing size and gauge of PVC insulated single core copper winding wire submersible including all insulating material of make a approved:- (a) Capacity 10 HP to 12.5 HP 3 phase 400/415 Volts

All as per ser item No. 22.00 above but Capacity 5 HP to 7.5 HP 3 phase 400/415 Volts

Supply only upper and lower housing bushes of any material complete suitable for 5HP to 15 HP complete.

Supply only stainless steel bushes each set suitable for 5HP to 15 HP submersible motor complete

Supply only 'O' ring kit and oil seal kit suitable for any capacity complete

Supply only sand guard suitable for any capacity omplete all as specifed and as directed.

Supply only water seal suitable for any capacity complete all as specifed and as directed.

Repair of bowl bush of housing by proper machine work of housing and pump soft & replacement of bowl bush for 5 HP to 15 HP complete.

Supply only rubber packing 20mm thick consisting of 8/6" holes for 150mm to 100 mm dia column pipe complete all as specified and directed

Jointing the submersible cable by jointing kit of suitable size by means of jointing material & making the leak proof jointing complete all as specified and directed by Engineer-in-Charge.

Dismantling and taking down unserviceable electric motor from foundation and transportation to workshop for repairing and rewinding with existing size copper wire, winding with insulating material and warnishing, heating etc and reassembly installing on existing foundation including proper alignment and testing complete for the following size of Pump sets :- (a) 5 HP to 7.5 HP Capacity.

All as per ser item No. 32.00 above but 1 to 3 HP Capacity.

Repair/maint/servicing and checking thoroughly defective centrifugal pump set of capacities 1 to 3 HP HP by dismantling of pump set at site and checking inspection and replacement of unsv spares as required or as directed

All as per srl item No 34.00 above but pump set capacities 7.5 HP to 15 HP. Note : (i) Spares shall be measured and paid separately under relevant item. (ii) Job involves proper alignment after repairing testing, recommissioning the pump set to the entire satisfaction of Engr-in-Charge, Job should be carried out by the authorised persons of manufactures / dealers).

Supply and replace the following spares for 7.5 to 15 HP Pump set :- (a) Impeller

All as per ser item No. 36.00 above but Water retaining (Deflector) Ring DE/NDE

All as per ser item No. 36.00 above but Linter Ring CI DE/NDE

All as per ser item No. 36.00 above but Set of gasket

Supply and replace ball bearing of following sizes including taking out old unserviceable bearing. Make : SKF/NBC (a) Ball bearing 6307 (Single ball) Make : SKF

All as per ser item No. 40.00 above but Ball bearing 6308 (Single ball) Make : SKF

All as per ser item No. 40.00 above butBall bearing 6309 (Single ball) Make : SKF

All as per ser item No. 40.00 above but Ball bearing 6311 (Single ball) Make : SKF

Checking overhauling and pressure testing of normal working pressure and replacement of unserviceable gauges safty "V' belt compressor piston rings etc for air compressor stationary type electrically operated air cooled complete including painting with two coats of synthetic enamel paint (first quality) after preparation of surfaces by scraping old paint complete all as specified and as directed.

Repair/ overhauling of single phase motor 230 Volts, 50 Hz, 4 pole induction non-synchronous 990 RPM all complete as specified and as directed.

Supply & fix PVC NRV( injection check valve) set with glass ball for Suction & delivery suitable for existing granual chlorine dosing system.

Supply & fix PVC strainer washer type heavy duty or Y type stainer for Suction suitable for existing granual chlorine dosing system.

Supply & fixing foot valve assembly for chlorine dosing system including teflon ring seal all complete as specified and directed

Supply & fixing Suction/ Discharge valve assembly for chlorine dosing system all complete as specifed and directed. Make : RAMCO/Aqafit/ Austin India.

Supply & fix teflon gland packing square type 3 mm suitable for existing granual chlorine dosing system.

Supply & fixing Suction/ Discharge tubing (3/8''-white) suitable for existing granual chlorine dosing system. Make : RAMCO/Aqafit/ Austin India.

S & F digital voltmeter of suitable size existing in LT panel Model VEGA, Make- L&T CAT No- WDS301FEV00 or equivalent of Seimens / Havells / C&S) as approved by GE.

S & F digital Ammeter of suitable size as fitted on existing in LT panel Model VEGA, Make- L&T CAT No- WDS301FCA00 or equivalent of Seimens / Havells / C&S) as approved by GE.

S & F Direct-on-line starters of capacity 3 HP complete all as specified and directed by Engr-in-Charge.Make- L&T CAT No- CS90319KODO or equivalent of Seimens / Havells / C&S) as approved by GE.

S & F Fully Automatic Star-Delta in sheet metal enclosure type MN with single phase protection feature suitable for motor rating AC-3 phase, 415V, 15 HP , 11 kW, 9-15 A range all complete as specified and directed. Make- L&T -CAT SS94362 or equivalent of Seimens / Havells / C&S) as approved by GE.

S & F Fully Automatic Star-Delta in sheet metal enclosure type MN with single phase protection feature suitable for motor rating AC-3 phase, 415V, 12.5 HP , 9.3 kW, 9-14 A range all complete as specified and directed. Make- L&T -CAT SS996254, or equivalent of Seimens / Havells / C&S) as approved by GE.

Supply and fixing Control cable of copper conductor sheathed PVC 3 core 4.0 sqmm size complete all as specified and directed by Engr-in-Charge.

Supply only OT solution for chlorine test in each bottleof 500 ml coplete as specified and directed by engineer in charge. Make - Ramco/ Aquafit / Austin india

Supply only chlorine test kit with coloured ample coplete with all testing fitments and OT solution in rexine finish box coplete all as specified and directed by engineer in charge. Make - ramco / Aquafit / Austin india

Supply only iron test kit with coloured ample complete with all testing fitments and OT solution in rexine finish box complete all as specified and directed by engineer in charge. Make - ramco / Aquafit / Austin India

Supply only digital type electronic pocket type TDS meter coplete all as specified and directed by engineer in charge. Make - ramco / Aquafit / Austin india

S&F MCCB 4 pole 125 Amp of breaking capacity 25 KA complete all as specified and directed.

S&F MCCB 4 pole 63 Amp of breaking capacity 25 KA complete all as specified and directed.

Indicator lamps LED type any colour or equivant to existing in LT panel at size complete all as specified and directed by Engr-in-Charge.

M&L for rewinding of submersible motor of any make and capacity 20 HP 3 phase 400/415 Volts existing size and gauge of PVC insulated single core copper winding wire submersible including all insulating material of complete all as specified and as directed.

Supply only stainless steel bushes each set suitable for 20 HP submersible motor complete

Supply only gun metal bush of pump shaft suitable for 20 HP complete.

Supply only neck ring of impeller as per existing size suitable for 20 HP including necessary lathe work complete all as specified and directed

S & F Fully Automatic Star-Delta in sheet metal enclosure type MN with single phase protection feature suitable for motor rating AC-3 phase, 415V, 20 HP , 15 kW, 28-42 A range all complete as specified and directed. Make- L&T CAT No SS95975 or equivalent Seimens / Havells / C&S) as approved by GE.

NOTES :- 1. The amount of schedule of credit shall be deducted from the total of this BOQ for arriving at contract sum. 2. Unless otherwise specified the rates for PCC shall deemed to include the cost of formwork shuttering etc., required for complete and proper execution of the work. Refer Schedule A notes for details.

BUILDERS ASSOCIATE

Unison Constraction

SHRI P P SHARMA

R.N.Construction Co.

NAYAK BROTHERS

M/S ALPHA BETA CONSTRUCTION

M/S SUNNY ENTERPRISE