Drilling and commissioning of 02 Nos Tubewells of 200mm diiameter with pumping machinery under City Dn. II Ajmer with 24 months DLP

Construction of tube well after completion of drilling by rotary /percussion method & up to 100 mtr. depth in all type of rocks by DTH system as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended up to date) and technical specifications. The work shall be deemed completed only after obtaining sand free water. The bore well should have a throughout nominal size bore beyond casing pipe.

Nominal bore 200 mm dia.

Add 15% extra on above item (Item No 2.4.1 to 2.4.2) for drilling depth beyond 100 mtr and up to 200 mtr from ground level, rate shall be applicable for only extra depth beyond 100 mtr and up to 200 mtr.

Supply of ERW M.S. black casing pipe ISI marked (IS:4270/2001) or amended up to date of following sizes.

200 mm dia NB (Thickness of pipe 5.4 mm & mass of tube 28.46 kg/m) thikness.

Labour charges for making slots an blank pipes made of ERW MS black pipe ISI marked of following sizes, the slotting should be as per IS : 8110-1985

200 mm dia nomibal bore of 5.4 mm thickness

Supply & Fixing M S clamp set of 50x6 mm flat from iron with nuts and bolts etc. for holding the riser pipe assembly of submersible pump set.

Supply & Fixing tube well cover of MS sheet 8mm thick at top & 5mm thick 100mm wide shroud around the edge so as to form a cap on the top end of casing pipe with GI Nipple 45cm long & two GI flanges at both ends in 80mm sizes passing through a hole in the centre of MS sheet. A 25 mm socket with end plug shall also be welded over top plate. A GI nipple having outside thread of size 1/2" (for installation pressure gauge) shall be provided & welded with 80mm GI nipple near top plate nipple shall be provided with end plug.

200 mm dia

Providing & Lowering in tube well ISI marked GI pipe medium duty ("B" class), Steel tube as per IS 1239 or amended up to date and zinc coating as per IS 4736 threaded and double flanged (welded) on both ends and two number 25x3 mm MS flat welded on both ends between pipe & flange, rubber washer & nut bolts etc. complete in all respect.

50 mm dia

Providing, installing , testing and commissioning of double flanged bulk flow meter with removable mechanism, of class B conforming to ISO 4064/1 or amended up to date of approved make including cost of all materrial and labour as per specifications with GI Box (sheet 16 SWG) suitable with locking arrangement of following dia.

50 mm dia

Gunmetal non-return valve horizontal ( screwed end ) 50 mm dia

Supply & installation of 3 phase ISI marked submersible motor pump set of five star ( if not available then three/ four star whichever higher rating available) rating by BEE and as per IS: 8034-2018 (pump) and IS 9823-2013 (motor) or as amended up to date of approved make of following duty condition with required accessories including making connection suitable for tube well/DCB. The job includes lowering of motor pump, installation of complete fitting & accessories, jointing of electrical cables up to switch board, testing of submersible pump set and interconnection up to water mains, complete in all respect.

7.5 KW ( 10 HP) & head up to 120 mtr.

Supply and fixing of electric control feeder comprising of suitable rating MCCB, fully automatic star delta starter, over load relay, ampere meter with CT's vold meter, phase preventer, suitable starting capacitors, phase indicators, lighting arrangement etc. complete suitable for three phase pump set. The panel should have space for energy meter ( suppled by DISCOM). All these equipments shall be housed by panel box made out from 18 gauge M.S. sheet with powder coating. Panel should be of minimum size 900x600x450 mm with stand (made of angle iron of size 35x35x5mm) duly bolted/screwed with enclosure box having 4 legs shold be embedded in M-15 cement concrete plat form. The size of CC platform should be equal of bigger than the base size of pannel having height of at least 200 mm from ground level. The panel should have opeing of suitable size in front of spaces for energy meter with glass for meter reading. The operation of pannel should be suitable for on 440 volt AC supply.

Above 5 hp and up to 10 hp

Supply & Fixing of ISI marked three core PVC flat submersible cable as per IS 694:1990 or amended up to date and conductor as per class 5 of IS 8130:1980 including making connection etc.

3 core 6.0 Sq.mm

Supply & Fixing XLPE insulated / P.V.C. sheathed cable of 1.1 KV grade with aluminium conductor Armoured of IS:7098-I/1554-1 approved make in ground as per IS:1255 including excavation of 30cmx75cm size trench, 25 cm thick under layer of sand, second Class bricks covering, refilling earth, compaction of earth, making necessary connection, testing etc. as required of size.

16.0 Sq.mm, 4 core

Providing and laying of ISI marked GI Pipe light duty ( "A" class) as per IS:1239 for casing pipe for submersible cable external work 40 mm dia complete in all respect.

P & F G.I. Pipes (External Work) with G.I. fittings excluding union (IS : 1239 Mark) including trenching & refilling earth etc.

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