NIT No. 35/EE(EM)WS S-I/(19-20) Item No-3

Supply of submersible pump set fitted with dynamically balanced SS impeller mounted on stainless steel shaft with protection sleeve having stage bowl & closed grained shorted type impeller, the pump will be directly coupled to required wet type induction motor of 7.5 HP, Speed 2900(+-5%) RPM suitable for operation of 3 phase, 415 volt, 50 Hz, AC supply with efficiency 70% at following duty point: 125 LPM on 116 Mtr. Head. Having discharge outlet 50 mm and outside dia 142 mm. Make: BS/CG/KSB.

S/O PVC insulated & PVC sheathed cable with plain copper conductor having 3 phases, 3 core flat for submersible motor of 4 square mm size each 100 mtrs. Make: Havells/ Finolex.

S/O M.S. clamp of 600 mm length duly fabricated out of 12.5 mm thick 75 mm wide, M.S. plate for holding the pipe of 50 mm dia.

S/O Double flange GI Column pipe 50 mm dia medium class each of 3 mtrs long duly threaded on both ends, welded fitted with GI flange on both ends with slot of submersible cable. Make: TATA/ Jindal.

S/O/ Tail piece of the medium class GI Pipe 500 mm long with one end threaded as per outlet of pump & another end flanged as per size of GI pipe 50 mm dia.

S/O GI 90° Bend of size 50 mm dia having both side flange (heavy duty).

S/O nut & bolts of 1/2 “dia of different size i.e. 1.5” dia & 2.5” long full threaded.

S/O rubber packing for 50 mm dia flange.

S/O Bore cover approx, size 8” dia made outlet from 6 mm thick M.S. sheet in 2 halves & circular hole will be in centre of 2”-2 ½” dia with locking arrangement by nut bolts.

S/O transformer oil. Make: Savita/ Power

S/O 50 mm dia non return valve design std..:IS-5312 Part-1 PN 1.0 , having CI body,bronze wedge rings, SS spindle drilled flanged type as per IS:1538, table 4 & 6 with pressure rating class-I. Make: Kirloskar/ IVC.

Installation & commissioning of submersible p/set with proper fitting of 50 mm dia double flange pipes, along with check valve and other items. Testing the earth tester and providing All tools & tackles & safely measures taken by contractors and testing the sub. p/set on no load/on load. Testing the earthing with earth tester and providing the report duly verified by engineer in charge.

Earting with GI earth pipe 4.5 meter long, 40 mm dia including accessories, and pro\viding masonry eclousere with cover plate having locking arrangement and watering pipe etc. with charcoal /coke and salt as required. (DSR E&M 2018)5.2

Providing and fixing 6 SWG dia GI wire on surface or in recess for loop earthing as required. (DSR E&M) 2018) 5.16

Bansal Traders

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