CLEANING OF UG SUMPS OVER HEAD TANKS, REPAIRS/MAINTENANCE OF GI PIPELINES VALVES MOTORS ETC., AND PERIODICAL SERVICES TO OVER HEAD TANK STORAGE AT TRICHY UNDER AGE (I) COIMBATORE

Amount

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for taking out/laying of pipe and getting out in hard/dense soil complete all as specified and directed.

Returning, filling in, including spreading, watering and well ramming in layers not exceeding 25 cm thick using soils complete all as specified and as directed.

Removing the surplus spoil to a distance not exceeding 50 mtrs from the starting point and depositing at a height not exceeding 1.5 m above ground level complete all as specified and directed.

Taking out/up/down from trenches /walls /floors galvanised steel tubings and connections of following sizes :-

Bore of pipe 15 mm

Bore of pipe 20 mm

Bore of pipe 25 mm

Bore of pipe 40 / 50mm

Bore of pipe 80mm

Bore of pipe 100mm

Supply and laying in trenches galvanised steel tubings, medium grade with screwed and socket joints together with all galvanised steel fittings such as sockets, elbows, bends, tees, reducers, short pieces, unions, caps, plugs etc. including clamps connection cutting screwing , drilling etc up to 100 mm dia pipe all as specified and directed including connections of following sizes complete all as specified and directed.

Bore of pipe 20 mm dia

Bore of pipe 25 mm dia

Bore of pipe 40 mm dia

Bore of pipe 50 mm dia

Bore of pipe 80 mm dia Note:- 1. Excavation and earth work will be measured and paid separately. 2. Suitable size of Union will be provided at all branches tees joints and at a maximum distance of 30 RM of straight pipe and rates are deemed to be included in the rate quoted above for ease in maintenance.

Supply and fixing on walls, floors, roof, ceilings galvanised steel tubings medium grade with screwed and socket joints together with all galvanised steel fittings such as sockets, elbows, bends, tees, reducers, short pieces, unions, caps, plugs etc. including clamps including connections of following sizes complete all as specified and directed:-

Bore of pipe 15 mm dia

Bore of pipe 20 mm dia

Bore of pipe 25 mm dia

Bore of pipe 80 mm dia

Bore of pipe 100 mm dia Note:- Suitable size of Union will be provided at all branches tees joints and at a maximum distance of 30 RM of straight pipe and rates are deemed to be included in the rate quoted above for ease in maintenance.

S&F Gun metal globe or gate valve, heavy duty conforming to IS-778 with iron wheel head screwed both ends suitable for fixing to G I pipe including dismantling taking out old unserviceable Gun metal globe or gate valve of following sizes complete all as specified and directed;-

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

S&F Pressure gauge with chromium plated brass cock and tube range up to 7 Kg/sqcm for pump set including all accessories required to be fixed on CI/GI pipe lines including taking out old unserviceable pressure gauge complete all as specified and directed.

S&F Star delta starter fully automatic suitable for electric pump set motors 10 HP capacity 3 phase 415volts, comprising of main star delta contactor, timer, overload relay complete including taking out old unserviceable starter complete all as specified and directed. Note : The rate coated above are deemed to be included the cost of minor alteration to the panel for fixing of above starter

S&F Foot valve, ball type, heavy duty suitable for 100 mm dia pipe line including taking out old unserviceable foot valve any type and make from suction pipe of pump set complete all as specified and directed.

All as per item 10 hereinbefore but 80 mm bore

All as per item 10 hereinbefore but 50mm bore

M&L Construction of valve pit chamber of size 900mm x 900 mm x 900 mm (internal size) with 3.15 mm thick MS sheet cover framed with angle iron 50 x50 x6 mm thick embedded in 15 cm thick PCC coping and locking arrangement, cover treated both side with two coats of synthetic enamel over a coat of red oxide primer including necessary excavation, removal of surplus soil to a distance not exceeding 50 mtr, returning filling in, PCC 1:3:6 type C2 75 mm thick as in foundation/floor, brick work (one brick thick) in cement mortars 1:4, PCC 1:3:6 type C1 as in copping, Plastering in cm 1:4 and 75 mm thick hard core below foundation etc., including dismantling old valve pit chamber complete all as specified and directed.

M&L Construction of valve pit chamber of size 600mm x 600 mm x 600 mm (internal size) with 3.15 mm thick MS sheet cover framed with angle iron 50 x50 x6 mm thick embedded in 15 cm thick PCC coping and locking arrangement, cover treated both side with two coats of synthetic enamel over a coat of red oxide primer including necessary excavation, removal of surplus soil to a distance not exceeding 50 mtr, returning filling in, PCC 1:3:6 type C2 75 mm thick as in foundation/floor, brick work (one brick thick) in cement mortars 1:4, PCC 1:3:6 type C1 as in copping, Plastering in cm 1:4 and 75 mm thick hard core below foundation etc., including dismantling old valve pit chamber complete all as specified and directed.

S&F Non return valve flanged with by pass arrangements heavy duty class-I, 80mm bore conforming to IS including rubber gaskets, bolts, nuts, and washers and dismantling taking out old unserviceable NRV including cutting unscrewing old nut bolts complete all as specified and directed.

S&F and testing 80mm bore, sluice valve flanged and drilled both ends CI body, heavy duty, class PN 1.6, gun metal spindle conforming to IS 14846 including rubber gaskets, bolts, nuts, and washers, dismantling taking out old unserviceable sluice valve by cutting unscrewing old nut bolts complete all as specified and directed.

All as per item 10 hereinbefore but 100mm bore

Dismantling the mono block pump set of 10 HP/15 HP cap 3 phase & segregating to its parts for repairs and M&L rewinding motor with super enameled copper wire of same size/gauge wire and turn of old burnt out wire with insulating material including varnishing, turning and polishing to the shaft and/or rotor, including replacement of suitable bearing etc complete & refixing motor after completion of work including testing of motor complete all as specified and directed.

Taking out/lowering the submersible pump set up to 5/7.5 HP from deep bore well with connected cable and column pipes and disconnecting the cable for removing the submersible pump set for carrying out minor repairs and re-assembling column socket pipe end and testing, commissioning of pump set after repairs including rectification of any leakage to entire satisfaction

Dismantling the submersible pump set up to 5 HP by separating pumps and motor opening machineries fully for carryout required repairs to pump/ motor by machines and reassembling after replacing all worn out spare parts as mentioned here in after, cleaning and refixing with motors, coupling etc, & testing complete all as specified and directed.

Rewinding of AC three phase induction motor up to 5 HP (Submersible motor) be cutting of burnt winding cleaning of starter slots cleaning bleaching of motor and rewinding with existing size gauge of PVC insulated copper wire water proof winding cable and including servicing of pumps complete all as specified and directed.

Supply only the following parts for item No 21 complete all as specified and directed.

Thrust plate

Winding protection set

Motor bearing

Impeller

Neck ring

Supply and connect PVC insulated PVC sheathed submersible multi stranded copper conductor flat cable, 3 core, 6 sqmm, 1100 volts grade including disconnecting, dismantling taking out old unserviceable cable from LT panel to pump set complete all as specified and as directed.

All as per item no 23 hereinbefore but 10.00 Sqmm, 3.core

M&L Cement concrete 1:2:4, type B1, using 20mm graded stone aggregate as in foundation base for mono block pump set complete all as specified and directed.

M&L Cleaning RCC UG water storage sump/ground level tank by pumping out dirty water & removing all sludge, dirt silt etc from walls and floor of the tank & treating the wall with bleaching powder, rubbing scraping walls and floor with the wire brushes and taking out all silt, sludge and dirt from the sump and depositing to a distance up to 50 meter, after primary cleaning the empty sump shall be cleaned further with mixture of fresh water and potassium permanganate at the rate two percent with water, washing the sump shall be continued till water stored in the tank looks clear and then applying two coats of lime wash inside the sump and writing the date of cleaning and capacity of sump of size of letter 4" with synthetic enamel paint (white) distinctively for following capacity complete all as specified and directed:-

30,000 liters capacity at Kajamalai

75,000 liters capacity at Reynolds road (drinking water)

22,700 liters capacity at Reynolds road (bore well water)

1,12,000 liters capacity at Alexandriya road

22,700 liters capacity at Garuda lines (Sump 1 & 2)

10,000 Glns capacity at Mannarpuram

M&L Cleaning RCC overhead water storage tank by removing all sludge, dirt silt etc from walls and floor of the tank & treating the wall with bleaching powder, rubbing scraping walls and floor with the wire brushes and taking out all silt, sludge and dirt from the sump and depositing to a distance up to 50 meter, after primary cleaning the empty sump shall be cleaned further with mixture of fresh water and potassium permanganate at the rate two percent with water & washing the sump shall be continued till water stored in the tank looks clear and then applying two coats of lime wash inside the sump and writing the date of cleaning and capacity of sump of size of letter 4" with synthetic enamel paint (white) distinctively including preparation of base for following capacity complete all as specified and directed:-

60,000 liters capacity at Alexandriya road

5,000 gallons capacity at Mannarpuram up to 50m staging

10,000 gallons capacity at garuda line up to 50m staging

48,000 liters capacity at garuda line up to 30 m staging

M&L cleaning of PVC service water tank of following capacity by using following six stage mechanized cleaning process (a) Sucking out of water from existing PVC tank by using pump. (b) Sucking out of sludge and muds from the tank by using sludge pump. (c) High pressure cleaning of walls & ceilings of water tank using 150 Bar pressure, jet cleaner which rid of the walls off calcinations, algae and all contamination. (d) Cleaning and draining up of tank by using Industrial vacuum cleaner (f) Finally sterilization and disinfection of tank will be done by using UV radiation developing from UV radiator to kill any suspended bacterial remaining in the tank. Note : (a) After cleaning the tank, Date of cleaning will be written on the tank by using stencil. (b) when cleaning tank float valve should be removed after completion of cleaning float valve to fixed same tank)

250 Ltr capacity

500 to 750 Ltrs capacity

750 to1000 Ltrs capacity

Taking down RCC cover slab from RCC water tank, Cleaning and removing all scale and dirt etc. from RCC water tank exceeding 250 litres capacity and not exceeding 500 litres capacity and from mouth of circulating pipes etc complete all as specified and directed.

All as per item above but exceeding 500 lit to not exceeding 1000 liters capacity

Preparing old painted surfaces of pump set of following capacity and applying two coats of synthetic enamel paint all as specified and directed by Engineer-in-charge.

10 HP, 3 phase, 415 volts, 50 c/s,

7.5 HP, 3 phase, 415 volts, 50 c/s

5 HP, 3 phase, 415 volts, 50 c/s

S&F PVC Water tank cover for 500/1000 liters tank threaded type ( male and female assy) along with locking arrangement all as specified and directed

S&F Rotational mould polyethylene water storage tank, white colour, triple layer of capacity 500 liters (cylinder vertical with closed top ) hoisted and fixed in position complete all as specified and directed.

M&L Brickwork with subclass `B' bricks, straight or curved on plan exceeding 6m mean radius, built in CM 1:6 complete all as specified and directed.

M&L Rendering 10mm thick in CM 1:4 on fair faces of brick work or concrete wall surfaces finished even and fair complete all as specified and directed.

M&L preparation of newly plastered wall surfaces and applying three coats of white washing complete all as specified and directed.

S&F integral aviation light comprising of aluminium housing with polycarbonate enclosure with LED lamps fixed in position on over head tank minimum height 30 meter staging with provision of 1.5 Sqmm, 3 core multi stranded copper conductor cable passing through PVC conduit pipe with all fixing accessories including taking down old unserviceable light fitting complete all as specified and directed.

S&F Dual source digital electric meter (Multi functional meter) LED display automatically measured voltage current, frequency, PF KW, KVA etc 1/5 amps, 415 volts, to be fixed on exiting panel board complete all as specified and directed.

S&F Heating coil element, 2 KW capacity for solar water tank, 230 volt, 50 HZ all as specified and directed.

S&F Re-wirable switch fuse unit, triple pole neutral, 63 amps, 415 volts steel enclosure porcelain fuse carrier & base complete all as specified and as directed

M&L Rendering 15mm thick in CM 1:6 on fair faces of brick wall surfaces, finished even and smooth without using extra complete all as specified and directed.

M&L Rendering 5mm thick in CM 1:3 on ceiling surfaces complete all as specified and directed

M&L Preparation of newly plastered ceiling surfaces and applying three coats of white washing complete all as specified and directed

M&L Preparation of old decorated surfaces of walls (plastered or unplastered) including cornices and pilasters and applying one coat of white washing complete all as specified and directed

M&L Preparation of old painted surfaces of steel and steel based materials of any description not otherwise described exceeding 10cm width or girth and applying one coat of synthetic enamel paint complete all as specified and as directed

S&F Auxlary contactor MNX 18 of suitable for 5 HP induction motors including taking down old unserviceable one complete all as specified

S&F Overload relay contactor mounting type capacity suitable for 5 HP induction motors including taking down complete all as specified

S&F Direct on line submersible starter suitable for 5 HP, three phase submersible motor complete all as specified and directed.

M&L Cast iron fittings such as any type, radius and angles tapers any types bends, Tee, tail pieces all sockets or spigot and flanged type up to 150 mm bore complete all as specified and directed.

Supply and laying unplasticised PVC of pressure rating 10 kgf/cm2 of size 20 mm bore fixed complete to walls, ceiling or in floors including with all fittings such as ends, elbows, unions, tees, reducing tees, adaptors, sockets, plugs, hose clip and fixing saddles, wall clips, hooks, protective mild steel tubes sleeves and screws complete all as specified and directed.

All as item No 50 above but hereinbefore 25 mm bore

All as item No 50 above but hereinbefore 50 mm bore

S&F On load change over switch, 100A, four pole, 415 volts including taking down old unserviceable one complete all as specified and directed.

S&F Water level indicator for over head tanks including all ball, rope, pulley and level indicator as per site requirement including taking down unserviceable one complete all as specified and directed.

S&F OH tank and UG sump man hole cover made out of mild steel 3.15 mm thick sheets and frame made of 25mmx25mmx6mm angle iron including handle, hinges and locking arrangement complete all as specified.

S&F ON and OFF push button including taking out old unserviceable one complete all as specified and directed.

S&F Single phase preventer including taking out old unserviceable one complete all as specified and directed.

Supply and laying in trenches/through pipes/ducts or on poles/walls jointing to O/H conductor, LT panels, main switch with cable size aluminium lugs and testing. XLPE insulated, armoured heavy duty electric cables with aluminium conductor, 1100 volt grade, 6 Sqmm 2 core including taking out old unserviceable cable complete all as specified and directed Note :- Excavation and earth work, sand, pipe and bricks will be measured and paid separately.

M&L Sand cushioning to PVC cable with sand and punning to provide required for protection of cable complete all as specified and directed.

Supply and laying burnt bricks sub class B of old size laid dry in trenches for cable protection complete all as specified and directed.

S&F GI tubing, light grade, 40mm bore for protection of cable in trenches/on pole all as specified and as directed

M&L Earthing with galvanised steel earth plate electrode 60cm x60cm x 6mm thick buried directly in ground (earth pit not less than 2.25 meter deep below normal ground level, top edge of the plate not less then 1.5M below nominal ground level connected to galvanised earth lead wire 4 mm dia by means of bolts, cheek nut and washer of galvanised iron including 20mm bore GI protection pipe and 20mm dia watering pipe all as shown in electrical plate No 5 of SSR Pt 1 including connection with overhead conductor on poles/main switch board/Panel/FPB testing on completion including taking down old unserviceable earthing from existing location complete all as specified and as directed

R K BUILDERS