WBPHED/AE/HQ/NMD/NIeT- 04 OF 2024-2025 Sl no-2

Amount

Supply and delivery at site of the following submersible pumping machinery and electrical accessories:

Submersible pumping machinery directly coupled with water proof suitable size motor having following specification and as per NIT specification : Pump Discharge of clear water (Q)= 40 Mᶟ/Hr. Total Head (H)= 53M. Shaft-stainless steel Impeller- S.S/ GM Outlet Size: 80 mm. Stage- 8 Motor submersible type 3 Ph , 50Hz, 415 Volt± 10% 2900 RPM Motor must be suitable for operation with STAR-DELTA starter. Test certificate along with characteristic curve should be submitted at the time of delivery. [Rate as per price list]

1.1 KV grade 4 sq.mm x 3 Core water proof flat submersible cable for above motor

1.1 kv GRADE 25 sq.mm 3.5 core XLPE insulated Al. Ar. armoured cable conforming to IS 7098 (Part-I) 1988, with upto date amendments

Supply and delivery of the following valves, pipes and gauges etc at site:

80mm dia M.S. seamless column pipe(black) 6.8mm to 7.1 mm thick with 150 mm long heavy type socket at one end.

3.00 m long excluding socket having 8T.P.I. thread.

1.50 m long excluding socket, one end having a thread of 11 T.P.I & the other end having a thread of 8 T.P.I.

Heavy type suitable dia MS suspension clamp along with nuts bolts and washer.

80 mm dia CIDF sluice valve-2 no., Non Return Valve-1 no., CIDF 90° bend-1 no., Cl flanged tee-1no. blank flange-1 no., Cl/ MS flanged short piece 0.50 mtr.-2no etc as per IS specification and certification for Construction of delivery pipe line and wash out line.

Heavy type 250 mm dia split type tube well cover with 12 mm thick clamping arrangement including holes of column pipe, air pipe and cable entry with 2 sets heavy type suspension clump, nuts, bolts and washer as per departmental design.

Depth gauge 100 mm dia with steel air pipe of required length with all accessories for the above work including supply of good quality hand pump [This cost includes 15 mm. dia G.I. pipes and specials]

Pressure gauge [H.Gur u/ Febi g] 150 mm dia [0-7Kg/Sq.cm] brass cock and fitting complete[This cost includes 15 mm. dia G.I. pipes and specials]

Anti snapping safety device for pump set by supplying suitable size MS clamps two sets and nylon rope of required length including supplying of nuts, bolts and all other materials.

Supply & Laying of 40 mm dia UPVC Pipe for cable protection in underground trench with necy. Elbow, Tee, Socket, Nepple, Union, etc. Form Tube well to Pump House.

Laying of 25 sq. mm. 3.5 core AL. ar. Cable in wall/ floor by supplying of all necessary materials as per IE Rules and as per direction.

Supply delivery & fitting fixing of 63A 6 way Bus bar M.S. Chamber with 6 nos copper Bar & porceling insulator for loop in of submersible cable out door type fixing on angle iron Frame with suitable size of brick piller with earthing attachment as per direction of EIC.

Earthing by making, supply and installation of G.I. pipe electrode 50mm dia and 3.64mm thick X 3.04 m long including suitable guage G.I. wire and other necessary materials as per GS and as per direction of EIC.

Installation of the materials (to be supplied under above sl no 1 to 3) such as Pump motor set with column pipes, valves, panel fiting fixing pressure gauge, depth gauge, Non-return valve & drawing delivery out-let & washout line with the supplied specials / accessories including supply of cable gland,sockets etc including brick, sand, cement rod stc as required to complete the job as per direction and up to the entire satisfaction of the EIC.

Making brick pillar 0.25 mtr x 0.25 mtr. for supporting of valves and pipes with 12 mm thick plaster and net cement finish complete.

Making suitable size pump foundation with supplying of necessary cement, sand and stone chips including plastering and net cement finish complete.

Making double earthing arrangement in compliance with IE rules by G.I. pipe electrode of 5O mm. dia 3 mtr. Long 2 Nos for panel and pumping machinery 25 mm. x 6 mm. G.I. earth strips from earth pit to panel and all other accessories required to complete the work.

Making internal electrification of pump house consisting of two bracket point, one tube light point, two bulk head point, one fan point and 1NO. 74 watt LED fixture with arm bracket at outside and one three pin plug point including supply of all necessary materials to complete the work as per IE rules and as per direction [All the fittings and lamp should be LED type as per choice of EIC)

Withdrawing the damaged exiting submerssible pump motor set along with its coloumn pipe assembly (4" dia 80 ft) from old TW by proper lifting arrangement after necesasary disconnection of all electro-mechanical connections as required.

Dismentling the existing electrical & mechanical portion enter the Pump House including Old Starter , Old Cable line internal waring etc. as per direction of EIC.

Carrying exiting pump-motor,pipe etc form Lataguri work site to sukhani Departmental store including loading and unloading etc.

Dismentling & taking out the existing chlorine machine from its base after necessary disconnection of all electro-mechanical connections as required.

Installation & Commissionig of existing chlorinator with all accessories, PVC tank & drawing of power line as per IE Rules by supplying of necessary wire & continuous earthing. This include the cost of all necessary CC foundation (atleast 200 mm. height) with concrete mixture (Sand, Cement, Stone,chips) and neat cement finish by supplying of all required materials and testing the entire set as per direction of the EIC.

Fitting-fixing of repaired LED fixtures on the top of the pole.It includes the cost of hiring of ladder and making necessary interconnection by exiting of suitable gauge Cu wire as per direction of EIC.

N.B.:MAKE: AS PER PHE APPROVED VENDOR LIST

Add GST @18%

Add Labour Welfare Cess @ 1%

CHOWDHURY AND BASU ENTERPRISE (BID ID -5560032)

MESSRS BHOWMIK AND CO (BID ID -5560851)