WBPHE/AE/MMSD1/NIeT5OF202425

PART-A Supply and delivery of following materials at site:- Submersible pumping machinery directly coupled with submersible motor at 220V(±10%), 50(±3%)Hz. Material of Construction :- Pump bowl : Housing : C.I. Pump / Motor shaft : SS-410. Impeller : Bronze/CS/SS NRV Size: 32/40/50 mm Starting Method : DOL Speed : 2900 rpm max. Discharge(Q) -7 m3/hr and Head(H) - 62 mtr. [ Make- Approved ]

50 mm dia uPVC (Standard type) Column pipe with both side threaded and one side socketed, Make – Ashirbad/Aroma/Approved make 3.05 Mtr. Long .

1.5 Mtr. long .

50 mm diaTop and bottom adopter (CI)

Pressure gauge, 100 mm cast Al. dial along with DN-15 GI impulse line with valve. (0 – 10 Kg.) Make- H Guru/Febig

M.S. fabricated split type suitable tube well cover as per tube well housing with a necessary clamping arrangement with including holes for column pipe, air pipe and cable entry etc.

Safety device for the above pump set by suitable M.S. cage with clamping arrangement and nylon rope as per required length including supplying nuts, bolts and other necessary materials as per direction of E.I.C.

MS suspension clamp with necessary nuts, bolts & washer etc suitable for 50 mm dia column pipe (Size-300 mm x 50 mm x 6 mm each)

10 sq.mm. 3 core 1.1 KV grade PVC insulated XLPE Ar. AL conductor cable.

4 sq.mm. 3 core, 1.1KV grade PVC insulated & sheathed copper flat submersible cable. Make:Finolex

50 mm dia CIDF Non Return Valve conforming to I.S. : 5312, Part-I (P.N. 1.0), Make: Approved make

50 mm dia CIDF sluice valve (PN-1.0) As per I.S 13095 Make: Approved make

50 mm dia heavy type MS black Pipes (For Common Delivery header Pump under Sl No-1, along with necessary bends, specials, fittings, viz. flanges, bolts, nuts, gaskets ,concentric enlarger , MS Dismenteling joint, for connecting main pipe line etc. including providing MS/Brick/PCC support for laying of pipes & valves as reqd. to make the installation complete in all respect and as per NIT.

2 mm thick CRCA Sheet steel enclosed cubical type indoor type wall mounted Auto/Manual PLC based MCC Panel having requred feeders, stater etc. as detailed as per Technical Specification of NIT Make: Approved make

Chlorination system with all equipment and accessories as per following specification :-i. 1no. Plunger type dosing pump of capacity 0-100 lit/hr. max. discharge and 10 Kg/cm². pressure max with Motor 0.5 HP, 1 Ph, 50Hz 220 Volt, 1440rpm TEFC cooling motor, base plate rate adjustment device etc.ii. 100lit HDPE dosing tank for storing of chlorine solution .iii. Necessary GI pipe fittings and HDPE / PVC pipe line for dosing the solution with all accessories as per requirment. Pump Make: Make: Approved make

2 mm thick CRCA Sheet steel enclosed cubical type Outdoor Type Kiosk Box for installation Autometic Chlorinater system size- (L - 48" X H - 52" X D - 36" ). as per direction of EIC.

32A,240Volt double pole rewirable main switch metal sheet enclosed.

Making double earthing arrangement in compliance with IE rules by G.I. pipe electrode of 50 mm. dia 3 mtr. Long 2 Nos for panel and pumping machinery 20 mm. x 3 mm. G.I. earth strips from earth pit to panel and all other accessories required to complete the work.

PART-B Installation testing commissioning of above Supplyed items vide Sl-(1-18 & ) in part-A including cost of construction of foundation of chlorine machine, Valve support, fabrication of M.S Structure, grouting, cost of welding, fitting fixing of new valves, and connecting to main delivery line througth underground pipe laying etc including supplying of all necessary metarials viz nut & bolts, including painting by synthetic enamel paint at part of rising main,valves etc after removing of old paint by scrapping & cleaning to complete the jobs in all respect as per tecnical specification and as per direction of E.I.C

Earth work in excavation of foundation trenches or drain, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing,spreading or stacking the spoils within a lead of 75 m. as directed. The item includes necessary trimming the sides of trenches, leveling, dressing and ramming the bottom, bailing out water as required complete. a) Depth of excavation not exceeding 1500 mm.

Filling in foundation or plinth by silver sand in layers as directed and consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand .

Cement concrete with guard stone ballast(40mm size excluding shuttering) in 6:3:1 proportion.

Making wire net fencing around the ground bore T/W ,Panel and chlorine machine by supplying, fitting, fixing of suitable MS angle of approved quality which will be grouted on Earth by cement concrete including an arrangement for a gate with lock and key facility which will have to be provided as per direction of E. I. C.

SUJOY RANJAN BHOWMICK

P K ENGINEERING