REPAIRS AND MAINTENANCE TO PUMP SETS,MOTOR, CHLORONOME PLANTS AND WATER TREATMENT PLANTS AT 20 WING, 273 SU AND 46 WEU AND COMPREHENSIVE MAINTENANCE TO SWIMMING POOL, STP AND PUMP HOUSE AT 20 WING AF STN 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 above item 1 above but capacity 6000 gallons/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 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 painting with first quality of synthetic enamel (gray shade) paint exceeding 10 cm in width or girth not otherwise described complete all as specified and directed.

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

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

All as per item No.6 above but Gravel of size 3 mm to 5 mm

All as per item No.6 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/KIRLOSKAR) or equivalent as approved by GE.

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 and refixed with bolts & washers complete all as specified and as directed. (Note : Nuts, bolts & washers shall be measured & paid separately under relevant item here-in-after).

All as per item No.13 above item 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.

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 model in CEs/Seimens)

Lifting and taking out complete submersible pump set 5 HP to 15 HP alongwith the column pipes with the help of chain pulley block from borewell 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 directed.

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 including transportation from site to work shop and back complete. 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 of any make of capacity 10 HP to 12.5 HP 3 phase 400/415 Volts existing size and gauge of PVC insulated single core copper winding wire submersible including all insulating material of make a approved:- Note : The retrieved unserviceable copper winding wire shall be handed over to store and necessary RV shall be obtained.

All as per item No.19 above but for capacity 5 to 7.50 HP

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

Supply only Impeller for 5HP to 15 HP submersible motor complete all as specified and directed.

Supply only stainless steel bushes each set suitable for 5HP to 15 HP submersible motor complete all as specified and directed.

Supply only 'O' ring kit and oil seal kit suitable for any capacity complete all as specified and directed.

Supply only sand guard suitable for any capacity complete all as specified and directed.

Supply only water seal suitable for any capacity complete all as specified and 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 100mm to 150 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.

Taking down old unserviceable sluice valve from existing position and supply and fixing cast iron sluice valve conforming 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 100 mm bore pipe Make - KIRLOSKAR/ BIR/ RMCO/VENUS or equivalent

All as per item No.30 above but for 150 mm bore pipe

All as per item No.30 above but for 80 mm bore pipe

Checking overhauling and pressure testing of normal working pressure and replacement of unserviceable gauges safety "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 ,1 HP complete as specified and as directed.

Supply & fix PVC NRV( injection check valve) set with glass ball for Suction & delivery suitable for existing gradual 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 complete all as specified and directed. Make: Ramco/Aquafit/Austin India

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

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 5 HP to 7.5 HP capacity Pump sets. Note : The retrieved unserviceable copper winding wire shall be handed over to store and necessary RV shall be obtained.

All as per item No.40 above but 1 to 3 HP capacity of pump sets.

Repair/maint/servicing and checking thoroughly defective centrifugal pump set of capacities 1 HP by dismantling of pump set at site and checking inspection and replacement of unserviceable spares as required or as directed. Note: Necessary spares will be measured and paid separately as supply only.

Supply only Impeller the for 5 to 7.5 HP Pump set

Supply only water retaining (Deflector) Ring DE/NDE for 5 to 7.5 HP pump sets

Supply only Linter Ring CI DE/NDE for 5 to 7.5 HP pump sets

Supply only Set of gasket for 5 to 7.5 HP pump sets

Supply only ball bearing 6307 (single ball) sizes including taking out old unserviceable bearing complete all as specified and directed.. Make : SKF/NBC

Supply only Ball bearing 6308 (Single ball)

Supply only Ball bearing 6309 (Single ball)

Supply only Ball bearing 6311 (Single ball)

Supply & fix Suction/Discharge tubing (3/8" white) suitable for existing granual chlorine dosing system.Make-Ramco/Aquafit/Austin India

S & F digital voltmeter of suitable size existing in LT panel Model VEGA, Make- L&T CAT No- WDS301FEV00 or equivalent complete all as specified and directed by Engr-in-Charge.

S & F digital Ammeter of suitable size as fitted on existing in LT panel Model VEGA, Make- L&T CAT No- WDS301FCA00 or equivalent complete all as specified and directed by Engr-in-Charge.

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

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, C&S . Seimens)

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 bottle of 500 ml complete as specified and directed by engineer in charge. Make - Ramco/ Aquafit / Austin India

Supply only chlorine 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 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 complete all as specified and directed by engineer in charge. Make - ramco / Aquafit / Austin India

S&F in repairs MCCB 4 pole 63 to 100 Amp of breaking capacity 25 KA complete all as specified and directed. (Make- Havells/ Legrand/ Seimens/ L&T).

S&F in repairs 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.

Lifting and taking out complete submersible pump set of capacity 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.

Dismantling of submersible motor any make and of capacity 20 HP and reassembling complete after carry out necessary repair work & testing complete for smooth working to entire satisfaction of Engineer in charge including transportation from site to workshop and back complete. 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 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. Note : The retrieved unserviceable copper winding wire shall be handed over to store and necessary RV shall be obtained.

Supply only upper and lower housing bushes of any material complete suitable for 20 HP complete.

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

Supply only sand guard suitable for any capacity complete.

Supply only water seal suitable for any capacity complete

Repair of bowl bush of housing by proper machine work of housing and pump soft & replacement of bowl bush for 20 HP 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)

Taking down old unserviceable Butter fly valve 100 mm from existing position and supply and fixing Butter fly valve lever operated CI 100 mm dia including necessary joints by means of bolts, nuts washers and rubber gaskets complete all as specified and as directed. Make - KIRLOSKAR/BIR/VENUS/RMCO or equivalent as approved by GE.

Taking down unserviceable Raw sewage non clog pump set of capacity 10 HP from foundation and transportation to work shop for repairing from sewage treatment plant 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. Note: Necessary spares will be measured and paid separately as supply only.

Dismantling and rewinding of Raw sewage non clog pump set of any make and capacity 10 HP at STP Phase-III existing size and gauge of PVC insulated single core copper winding wire submersible including all insulating material of make a approved. Note : The retrieved unserviceable copper winding wire shall be handed over to store and necessary RV shall be obtained.

All as per item No.76 above but capacity 7.5 HP at STP Phase-III

All as per item No.76 above but capacity 5 HP at SLP Phase-I

Supply only Impeller for 5 to 10 HP non clog Pump set.

Supply only shaft sleeve

Supply only ball bearing 6305

Supply only ball bearing 6308

Supply only V belt B56

Lifting of suction pipe with the help of chain pulley arrangement at STP Phase-III and SLP Phase I and refixing after replacing unserviceable as directed by Engr-in-charge.

Supply and laying the GI water tubing heavy grade 100 mm including new threading by lathe for fixing heavy duty socket suitable for column pipe including taking down complete all as specified and as directed. MAKE: TATA /Jindal/Bansal or equivalent as approved by GE.

Cleaning of slush deposited in the sewage collection sump with the help of supply of jet water and sewage lifting pump complete all specified and as directed by Engr-in-charge.

Taking down unserviceable Air blower of capacity 3 HP from foundation and transportation to work shop for repairing from sewage treatment plant to contractor work shop for carry out necessary repair work and transporting it back to site of STP installation of AF Stn area.

Dismantling of air blower, servicing and replacement of unserviceable parts and refitting the same of 3 HP capacity including testing complete all as specified and as directed.

Supply and laying the GI water tubing heavy grade 80 mm including new threading by lathe for fixing heavy duty socket suitable for column pipe including taking down complete all as specified and as directed. MAKE: TATA /Jindal/Bansal or equivalent as approved by GE.

Supply and fixing MS Socket 80 mm bore pipe, heavy duty suitable GI pipe 80 mm dia heavy duty column pipe including taking out unserviceable one complete all as specified.

Supply and fixing MS Socket 100 mm bore pipe, heavy duty suitable GI pipe 100 mm dia heavy duty column pipe including taking out unserviceable one complete all as specified.

S & F Semi Automatic Star-Delta starter in sheet metal enclosure type MK with single phase protection feature suitable for motor rating AC-3 phase, 415V, 10 HP , 6-10 A range all complete as specified and directed. Make- L&T -CAT SS96255POVO or C&S , Siemens)

Taking down old unserviceable air release valve form existing position and S & F air release valve double action chamber to conforming IS-14845 of size 150 mm bore complete all as specified and directed.

Taking down old unserviceable non return valve form existing position and supply and fixing cast iron non return valve conforming to IS - 5312, PN-1.6 including necessary joints by means of bolts, nuts washers and rubber gaskets complete all as specified for 150 mm bore of pipe Make -KIRLOSKAR /RMCO/BIR

S & F Vacuum hose pipe 38 mm dia suitable for suction sweeper swimming pool including taking down complete all as specified and as directed.

Excavation in trenches in soft / loose soil n.exc 1.5 mtr wide n.exc 1.5 mtr deep getting out soil complete all as specified and directed. (Manual excavation)

Returning filling in including spreading levelling well ramming in layers n.exc 25 cm thick in a layers all as specified and as directed.

Removing excavated material (Soil) n.exc 50 mtr and depositing where directed at a level n.exc 1.5 mtr above the starting point all as specified and directed.

Taking up or down GI water tubing 80 mm dia including fitting connections and cleaning tubing, fitting/ cutting threading of serviceable tubing for relaying and removal of unserviceable tubing all as directed by Engr-In- Charge.

All as per item No.99 above but for 50 mm dia complete.

All as per item No.99 above but for 40 mm dia complete.

All as per item No.99 above but for 25 mm dia complete.

All as per item No.99 above but for 20 mm dia complete.

All as per item No.99 above but for 15 mm dia complete.

Re-fixing only old serviceable GI pipe incl fittings and connection in new or old position (Pipe obtained from item No 50 above ) of size 80 mm dia.

All as per item No.105 above but for 50 mm dia complete.

All as per item No.105 above but for 40 mm dia complete.

All as per item No.105 above but for 25 mm dia complete.

All as per item No.105 above but for 20 mm dia complete.

All as per item No.105 above but for 15 mm dia complete.

Supply and laying the GI water tubing medium grade with all fittings in trenches all as directed 80 mm dia. MAKE: TATA /Jindal/Bansal or equivalent as approved by GE.

All as per item No.111 above but for 50 mm dia complete.

All as per item No.111 above but for 40 mm dia complete.

All as per item No.111 above but for 25 mm dia complete.

All as per item No.111 above but for 20 mm dia complete.

All as per item No.111 above but for 15 mm dia complete.

Supply and laying/ fixing polyprolene random pipe (PP-R) PN 16 in three layer incl fixing of all fittings made out of PP –R as required for fixing to wall or laid in floor / ground all as specified and directed for 63 mm bore. Make – SFMC/PRINCE/RELIANCE/SAVOIR-FAIR

All as per item No.117 above but 50 mm dia complete all as specified.

All as per item No.117 above but 32 mm dia complete all as specified.

All as per item No.117 above but 25 mm dia complete all as specified.

All as per item No.117 above but 20 mm dia complete all as specified.

S & F in repair Gun metal gate valve (screwed) with iron wheel head, screwed both ends for iron / PPR pipe of size 50 mm dia . Make: Zoloto/Leader/Scud/Kirloskar

All as per item No.122 above but 40 mm dia complete all as specified.

All as per item No.122 above but 25 mm dia complete all as specified.

All as per item No.122 above but 20 mm dia complete all as specified.

All as per item No.122 above but 15 mm dia complete all as specified.

M & L for repairs to GI pipe line by cutting the damaged portion, threading both sides, insertion of same bore GI long screw, testing for leak proof in position all as directed . Note :Excavation & earthwork shall be measured separately.

Supply and fixing GI flange for 80 mm bore pipe, medium grade with suitable size nuts and bolts and double washers including 6 mm thick rubber gasket including taking out unserviceable one complete all as specified. Make: TATA/JINDAL/SURYA ROSHNI/ PRAKASH

M & L for run lead joints in position for cast iron spigot and socket ends for size 200 mm dia

All as per item No.129 above but 150 mm dia

All as per item No.129 above but 100 mm dia

All as per item No.129 above but 80 mm dia

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.

M/S SUNNY ENTERPRISE

BUILDERS ASSOCIATE

M/S MANAS MITRA

SUNIL DAS AND CO

HALDER ENTERPRISERS

M/S BENGAL ENGINEERING ENTERPRISES

M/S Banerjee construction co

SHRI P P SHARMA