PROVN OF WATER SUPPLY WITH ALLIED INFRA FOR INF BN AT OLD DRASS

Amount

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in hard dense soil.

Returning filling in, including spreading, leveling, watering and well ramming in layers n.exc 25 cm in soil.

Removing excavated soil to a distance n. exc 50 m and depositing where directed at a level n.exc.1.50 mtr above the starting point.

M & L for 15mm bore GI pipe, medium grade, ISI marked, with all fittings and fixed complete to walls and ceilings or laid in floors below ground level upto 1.5 m depth

M & L for 80mm bore GI pipe, medium grade, ISI marked, with all fittings and fixed complete to walls and ceilings or laid in floors below ground level upto 1.5 m depth

All as per item No 6 above but 50 mm dia -ditto-

S&F 15 mm bore Gun metal globe or gate valve with iron wheel head, screwed both ends, heavy duty ISI marked suitable, complete all as specified and as directed by Engr-in-charge.

S&F 80 mm bore and PN 1.6 pressure rating Cast Iron sluice valve duly ISI Marked with iron wheel head both end flanged , stainless steel spindle, non rising type complete with Neoprene rubber gasket, nuts, bolts and washers etc., complete all as specified and as directed by Engr-in-charge

S&F including testing of 3 layer PP-R (Polythene random copolymer) pipes of size 50 mm SDR 7.4 & SDR 11 UV stablised and antimicrobial fusion having thermal stability for hot & cold water supply including PP-R plain & brass threaded polypropylene random fittings laid in trenches complete.

All as per item No 10 above but 40 mm dia -ditto-

All as per item No 10 above but 25 mm dia -ditto-

All as per item No 10 above but 20 mm dia -ditto-

S&F ball valves, high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe and fixed for 20mm bore dia of pipe.(Min wt 210 g)

All as per item No 14 above but 25 mm dia -ditto-

S&F 50 mm bore PP-R Gate valve (brass insert) as per requirement of the site, complete all as specified and directed by Engr-in-Charge.

All as per item No 14 above but 40 mm dia -ditto-

All as per item No 14 above but 25 mm dia -ditto-

All as per item No 14 above but 20 mm dia -ditto-

Constuction of valve pit of size 900x900x900mm (internal dimensions), brick masonary construction, including all necessary excavation and earth work in hard/loose soil returning, filling in disposal of surplus spoil to distance not exceeding 50m and depositing where directed, PCC in foundation of the mix 1:4:8, type D-2 (using 40mm graded crushed aggregate) coping PCC (1:2:4) type B-2 using 12.5mm crushed stone aggregate, brick masonry in cement mortar 1:6 rendering 12mm thick in cement mortar 1:4 internally, externaly above ground level around as the work proceeds in the same mortar mild steel frame of size 50x50x6mm, MS sheet cover 3.15mm thick with handle and locking arrangement, painting to all the exposed MS work with two coats of synthic enamel paint of as approved by the GE over a coat of red oxide primer and painting all the MS embedded in PCC with two coats of black bituminous paint complete all as spcified and directed by Engineer-in-Charge. (Note: The suitable size and appropriate length of operating handle to be fixed for top operation without any hindrence for operation of sluice valve & earth filling in valve pit upto top rates are included in this item).

S&F rotational moulded polyethylene water storage tanks three layer (cylindrical vertical with closed top ), 500 litres capacity, hoisted and fixed in position all as specified in SSR Part I.

Supply installation comissioning and testing of submersible pump set horizontal type multi staging pump set 20 HP capacity with motor 415 volt 3 phase 50 Hz suitable for discharge 22000 LPH at head 200 M complete.

Supply and jointing submersible cable copper conductor of size 16 Sqmm 3 core PVC insulated for submersible motor with water proof joint.Complete all as specified. and directed by Engr in - Charge.

Supplying and laying XLPE insulated duty under ground armoured electric cables with aluminium conductor, 1100 volts grade, cross sectional area 25 sqmm 4 core complete.

Formwork to edges of concrte flats , break in floor, openings, in concrete walls, floors and roofs slabs and sides of RCC/PCC bands in walls, horizontal or sloping and similar work all exc. 20cm wide all as specified and directed.

M&L mild steel TMT bars 10 mm dia and over cut to length bent to shape required inclduing cranking bending spirally for hooping ends and binding with and incl mild steel wire (annelaed) not less than 0.90 mm dia or securing with clips.

M&L for sand filling using approved sand in trenches as sand cushioning to underground cables including spreading, levelling, and consolidation all as specified. (consolidated sand thickness only to be measured).

Supply and laying un- reinforced precast concrete cable cover, Class IV Type 1 flat size 250mm x 150 mm x 40mm.

Earthing complete with galvanised steel earth plate electrode 600mm x 600mm and 6mm thick buried directly in ground not less than 2.25 mtr deep below normal ground level with top edge of plate not less than 1.5 metres below normal ground level, connected to the Galvanized iron earth wire 4.0mm dia by means of bolts, nuts, check nuts and washers of galvanized iron protected by provision of G I light grade pipe 40mm bore including provision of concrete pit in PCC 1:2:4 type B1 using 20mm grade stone aggregate with 40mm thick cover of RCC 1:2:4 reinforced with XPM (weight not less than 4Kg/Sqm) and frame of angle iron 25x25x6mm with lugs two number and with 6mm dia MS bar handle made to shape and GI medium grade 20mm bore pipe for watering perforated at bottom 1.75m long placed on top edge of earth plate, common salt and charcoal filling, test point made out of 40mmx8mm flat iron with fixing arrangement funnel wire mesh and earth work in hard/dense soil, returing filling in and removal of surplus soil to a distance not exceeding 50M all as per electric plate No 3 of SSR Part-I conected to earth test point as specified or indicated including testing on completion.

Excavating over areas, n exc 1.5 m deep and getting out in hard / dense soil

Excavating over areas, exc 1.5 m deep but n exc 3 m in deep and getting out in hard / dense soil

M& L PCC 1:4:8 type D-2 (using 40mm graded stone agg) in foundation, filling and mass concrete.

M& L PCC 1:2:4 type B-2 (using 40mm graded stone agg) in sub base of floor

Precast cement concrete block masonry type C-1, 1:3:6 (using 20mm graded crushed stone aggregate) with solid blocks exceeding 10cm in width and set in cement mortar 1:4, complete all as specified and directed by Engineer-in-charge.

M&L for 15mm thick CM (1:3) rendering on fair surfaces of bricks or concrete work complete all as specified.

M&L for 15mm thick CM (1:4) rendering on fair surfaces of bricks or concrete work complete all as specified.

M&L for 15mm thick CM (1:6) rendering on fair surfaces of bricks or concrete work complete all as specified.

Preparation of newly plastered surfaces of walls and applying two coats of cement based paint over a coat of alkali resistant priming coat , complete all as specified and directed by Engr-in-Charge.

S&F Pre-painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50 mm thick of any colour having tensile strength of 550 Mpa as in roof covering/cladding to walls,fixed with J type hook, complete all as specified and directed by Engr-in-Charge.

M&L RCC 1:2:4 type B-0 ( using 12.5 mm graded crushed stone aggregate ) as in slabs supported on walls, beams and columns in floors, roofs, complete all as specified and directed by Engr-in-Charge.

S&F Mild steel Rolled mild steel in doors window of angle iron flat iron etc cleats etc confirming to Fe 410-W (Gde-E-250) quality A, complete all as specified and directed by Engr-in-Charge.

M&L for Hardcore of brken stone or boulder gauge n.exc 63 mm, deposited , spread and levelled in layers n.exc 15 cm thick , watered and rammed to a true surface, complete all as specified and directed by Engr-in-Charge.

S&F Mild steel Rolled mild steel in water tank, clading & like confirming to Fe 410-W (Gde-E-250) quality B, complete all as specified and directed by Engr-in-Charge. Drg No CESZ/TD/1056/2011 refers.

Supply and fixing Bib taps,15 mm bore,fancy type, cast copper alloy with crutch or butterfly handle, screwed down, screwed for brass ferrule, complete all as specified and directed by Engr-in-Charge.

Note : - Contract sum will be derived after deduction of Rs. NIL as listed in Schedule `A` Part -II (Schedule of credit).

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