COMPREHENSIVE MAINTENANCE AND PETTY REPAIR OF INTERNAL WATER SUPPLY INCLUDING REPAIR OF GEYSER CLEANING OF SERVICE TANKS AND SOME CONNECTED WORKS IN F G H AND J AREA AT NAVAL BASE AND CHECKING REPAIR AND REPLACEMENT OF EARTHING AND LIGHTENING ARRES

Amount

Supply and fix on wall/ ceiling/ laying in floors or concealed on wall, high pressure CPVC pipes SDR-13.5 & plain CPVC SDR 11 fittings of dia 40mm including all necessay fittings, solvents including taking down old one complete all as specified and directed

All as per item No 01 here-in-before but pipe of 25 mm dia complete all as specified and directed

All as per item No 01 here-in-before but pipe of 20 mm dia complete all as specified and directed

Supply and fix CPVC ball valve of size 40 mm dia suitable for CPVC pipe including necessary fittings and taking down old one complete all specified and directed

All as per item No 04 here-in-before but of 25 mm dia complete all as specified and directed

All as per item No 04 here-in-before but of 20 mm dia complete all as specified and directed

Supply and fixing of bib tap, CP, half turn with flange and areator, fancy type short body cast copper alloy with crutch or butterfly handle screwed for GI/cpvc pipe of size 15 mm and including taking down of old tap, complete all as specified and as directed (Make : Cera Cat. Part No. F1020151 or equivalent make from the list of makes)

Supply and fixing of bib tap, CP, half turn with flange and areator, fancy type long body cast copper alloy with crutch or butterfly handle screwed for GI/cpvc pipe of size 15 mm and including taking down of old tap, complete all as specified and as directed (Make : Cera Cat. Part No. F2008152 or equivalent make from the list of makes)

Supply and fixing of CP Bip cock short body with flange and nozzle for garden/wahing machine of size 15 mm including necessary fixing accessories with GI/CPVC pipes and taking down old unserviceble tap of any make , complete all as specified and as directed (Make : CERA Model No. F2002153 or equivalent make from the list of makes)

Supply and fixing of two way bib cock ,half turn with flange and areator of size 15 mm and including taking down of old unserviceble cock of any make , complete all as specified and as directed (Make : CERA Model No. F2002211 or equivalent make from the list of makes)

Material and repairs to concealed stop cock, bib taps , Garden Taps, Angle Valves, two way bib cock by replacing the brass spindle screws, nuts & caps etc. all as per site requirement complete all as specified and directed. (Make : CERA or equivalent make from the list of makes)

Supply and fixing 15mm dia angle valve, half turn with flange, chromium plated and including fixing accessories for CPVC pipe and taking down old angle valve, complete specified and as directed (Make : CERA Model No. F1018201 or equivalent make from the list of makes)

Supply and fixing of swivel overhead shower (minimum weight 40 grams) of PTMT any colour with shower arm (minimum weight 40 grams) 15mm size, 195 mm long with bend of 45 degree with flange for fixing with CPVC pipe and taking down old one,complete and all as specified and as directed (Make : CERA Model No. F7020108AB or equivalent make from the list of makes)

Supply and fixing PVC connection pipe 15mm outer dia, 450mm long cold water complete with PVC union on both sides to suit 15mm pipe and taking down old one, complete all as specified and directed (Make Cera Model F8070402 or equivalent make from the list of makes)

Supply and fixing health faucet ABS body with wall hook and 1 metre chrome plated PVC hose pipe , including taking out old one all as specified and directed (Make : CERA Model No. F8030108AB or equivalent make from the list of makes)

Supply and fix pillar taps, half turn with areator, cast copper alloy with capstan heads, chromium plated, fancy type screwed down high pressure with or without lettered hot or cold with long screwed shanks and fly nuts screwed for iron pipe and fixed for 15mm bore pipe, and including taking down of old one, complete all as specified and directed (Make : CERA Model No. F2002101 or equivalent make from the list of makes)

Supply and fix in repairs, Wall Mixer (3-in-1) with arrangement of both Telephonic Shower and Over Head Shower, with 210mm long bend pipe, complete all as specified and as directed (Make : CERA Model No. F1015403 or equivalent make from the list of makes)

Supply and fix shower/ health faucet wall holder, brass chromium plated, 20mm size, including taking out old one complete all as specified and directed (Make : Cera Model No F8070102 or equivalent make from the list of makes)

Supply and fixing CP angle cock, self closers/ pressmatic with wall flange for urinal pots to be fixed in 20/15mm pipe, complete all as specified and directed (Make Cera Model No. F9020203 or equivalent make from the list of makes)

Supply and fixed in repairs, Chromium Plated cast copper alloy Kitchen Sink Cock, quarter turn, wall mounted with swivel spout not less than 150 mm and wall flange complete all as specified and as directed. (Make : Model No. F2002261 of CERA or equivalent make from the list of makes)

Supply and fix Rotational moulded polyethylene water storage tanks (cylinderical vertical with closed top),3 layered, white colour, hoisted & fixed in position of capacity 5000 litres including taking out u/s old tank complete all as specified and as directed

All as per item No 21 here-in-before but tank capacity of 2000 litres complete all as specified and directed

All as per item No 21 here-in-before but tank capacity of 1000 litres complete all as specified and directed

All as per item No 21 here-in-before but tank capacity of 500 litres complete all as specified and directed

Supply and fix float valve synthetic(PVC) of size 40 mm dia high pressure with polythene ball of size 6" dia and fly nut including taking down of old valve complete all as specified and directed. Make Prayag Cat Part No. 155 or equivalent make from the list of makes)

Supply and fix float valve synthetic(PVC) of size 25 mm dia high pressure with polythene ball of size 6" dia and fly nut including taking down of old valve complete all as specified and directed. Make Prayag Cat Part No. 153 or equivalent make from the list of makes)

Supply and fix float valve synthetic(PVC) of size 20 mm dia high pressure with polythene ball of size 6" dia and fly nut including taking down of old valve complete all as specified and directed. Make Prayag Cat Part No. 152 or equivalent make from the list of makes)

Material,labour,transport and tools for rectification of urgent nature water supply complaints at Naval Base as and when required ( F, G, H, & J) during all working day ,sunday/ holyday /off hours / strike / lockdown on all working days all as directed NOTES:- (i) The material to be incorperated in the work will be measured and paid seperately under relevent item. (ii) The contractor should display contact number at F, G, H & J Area to register users complaint. (iii) The recovery of rupees 1000/- complaint will be chargeable if contractor fails to attend complaint within the stipulated time as directed by the Engr-in-charge.

Supply and fix in repair, rotate and lock type cover for over head water tank (HDPE) of capacity 500 Ltrs including taking down of old unserviceble tank cover complete all as specified and directed

All as per item No 29 here-in-before but for 1000 litres HDPE tanks complete all as specified and directed

All as per item No 29 here-in-before but for 2000 litres HDPE tanks complete all as specified and directed

All as per item No 29 here-in-before but for 5000 litres HDPE tanks complete all as specified and directed

Material and labour for cleaning RCC over head water storage tanks of capacity 1000 to 2000 litres on roofs or at any position by draining out entire water, removing sludge, mud, etc., brushing / rubbing with wire / nylon brush / mop to remove all algae / fungal growth and moss, etc entirely from walls, floors, ceilings, etc washing clean with fresh water by using water jets and then again washing and treating with anti-bacterial agents, disinfectants and bleaching powder and applying two coats of lime wash inside the wall surfaces of the tanks including writing the words "TANK CAPACITY AND DATE OF CLEANING" in capital letters of suitable size on outside visible place of overhead tank with synthetic enamel white paint over black back ground complete all as specified and as directed

All as per item No 33 here-in-before but for over head tank capacity 3000 to 5000 litres complete all as specified and directed

Material and labour for cleaning HDPE water storage tanks of capacity 500 litres on roofs or at any position by draining out entire water, removing sludge, mud, etc., brushing / rubbing with wire / nylon brush / mop to remove all algae / fungal growth and moss, etc entirely from walls, floors, ceilings, etc washing clean with fresh water by using water jets and then again washing and treating with anti-bacterial agents, disinfectants and bleaching powder and including writing the words " DATE OF CLEANING" in capital letters of suitable size on outside visible place of tank with synthetic enamel paint(white) over black back ground complete all as specified and as directed

All as per item No 35 here-in-before but for HDPE tank capacity 1000 litres complete all as specified and directed

All as per item No 35 here-in-before but for HDPE tank capacity 2000 litres complete all as specified and directed

All as per item No 35 here-in-before but for HDPE tank capacity 3000 litres complete all as specified and directed

All as per item No 35 here-in-before but for HDPE tank capacity 5000 litres complete all as specified and directed

All as per item No 35 here-in-before but for HDEPE tank capacity 10000 litres complete all as specified and directed

Material and labour for cutting chasses on walls, floor etc not exceeding 10cm girth and making good the disturbed surface to match with the existing after removing the existing concealed pipe/laying new pipe complete all as specified and directed

Demolition of cement concrete(unreinforced) in ground floor and paving n exc 15cm thick (below or above ground level) and removal of rubbish off the premises complete all as specified and as directed

Material and labour for PCC 1:3:6 type C2 (using 40mm graded stone aggregate) in foundation, filling and mass concrete complete all as specified and as directed

Taking down defective Geyser of capacity 25 ltrs from its existing position duly disconnected inlet/outlet water connection and opening up geyser for checking old defective parts and replacing/ repairing the defective parts with new one including testing and commissioning of the same after successful repairing complete including refixing the same geyser in its existing position and making inlet/outlet water connection complete all as specified and directed Note : The spares required for servicing the geyser shall be measured and paid seperately under releveant item of the schedule

Supply only thermostat suitable for 25 /50 litrs capacity Geyser of any make/type complete all as specified and directed

Supply only heating element 1.5 KW/2 KW ISI marked for 25 and 50 litrs capacity Geyser of any make/type complete all as specified and directed

Supply only chromium plated pipe for Hot and Cold water of suitable length required at site, 12mm dia with two brass adopter and connecting up complete all as specified and directed

Supply only gasket for 25/50 litre capacity Geyser complete all as specified and directed

Supply only indicating lamp suitable for 25/50 ltrs Geysers complete all as specified and directed

Supply only inner tank made out of cast copper alloy, ISI Marked, suitable for 25 Litre geyser complete all as specified and directed

Supply only metallic outer cover including bottom and top cover duly painted suitable for 25 Litre geyser complete all as specified and directed

Material and labour for repairs to 25 Litre geyser metallic inner tank, arresting the leakage by welding, brazing etc, pressure testing after repairs complete all as specified and directed

Supply and fixing of Loft water storage tanks (rectangular with closed top) an elite plastic loft tank manufactured with “Bi-Axial Rotational moulding" hoisted & fixed in position of capacity 200 litre including taking out unserviceable tank complete all as specified and as directed

Supply and fix in repair single phase 230 Volts, pressure/ booster pump of 0.5 HP including controller of boost pump suitable for 25x25 pipes complete all as specified. Make- Crompton, Model No- Mini Master-II and AB-15 (Controller) or equivalent make mentioned in the list of makes

Supply and fix in repairs, 25 litre capacity Electric Water Heater, Storage type, steel body with copper inner tank and heating element upto 2 KW, BEE 5 Star rated, with all accessories such as safety valve, thermostat, NRV, connection piece etc including testing and commisioning complete all as specified and as directed. Make : V guard Model SPRINHOT PLUS or equivalent make mentioned in the list of makes Note: The old water heater shall be deposited to MES store yard. Transportation for the same shall be included in the quoted rate.

Supply and fix in repairs MCB, SP, 6-32 Amps, 240 Volt, B curve, having breaking capacity 10 KA complete all as specified and as directed. Make Legrand Cat Part No. 4085 87 to 4085 95 or equivalent make mentioned in the list of makes

Supply and fix SPN enclosure with two pin and earth plug and socket complete with one SP MCB, 20 Amps having breaking capacity 10 kA, including taking down old unserviceable earth plug, complete all as specified and directed. Make Indoasian Cat Part No 810556I or equivalent make mentioned in the list of makes

M & L for Earthing complete with galvanized steel earth plate electrode 600mm x 600mm x 6mm thick buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level, connected to galvanized iron wire 4 mm dia as earth up to 7.5 m distance and connected by means of bolts, nuts, checknuts and washers of galvanised iron or steel all shown in electric plate No. 3 of SSR Part-I connected to earthing test point all as specified or indicated including provision of necessary excavation and earth work in any type of soil, PCC pit , RCC cover 50 mm thick, reinforced with 8 mm dia TMT bars both ways @ 10mm c/c ,20 mm bore medium grade watering pipe, water funnel, 15 mm bore GI light grade protection pipe, common salt, charcoal dust, returning, filling in of soil, removal of spoil to a distance not exceeding 50 mtr etc including testing on completion complete all as specified. Note :- (i) The unit rate includes for protection pipe and earth lead upto 7.50 Mtr. (ii) Earth lead beyond 7.50 Mtr length shall be measured and paid separately.

M&L for earthing complete with galvanised steel earth plate electrode 60 cm x 60cm x 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to galvanised earth strip 25 x 4 mm as earthing lead by means of bolts nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. point 3 connected to earthing test point all as specified or indicated including testing on completion including provision of necessary excavation and earth work in any type of soil, PCC pit , RCC cover 50 mm thick, reinforced with 8 mm dia TMT bars both ways @ 10mm c/c , 20 mm bore medium grade watering pipe, water funnel, 40 mm bore GI light grade protection pipe, common salt, charcoal dust, returning, filling in of soil, removal of spoil to a distance not exceeding 50 mtr etc including testing on completion complete all as specified. Note :- (i)The unit rate includes for protection pipe and earth lead upto 7.50 Mtr. (ii) Earth lead beyond 7.50 Mtr length shall be measured and paid separately.

M & L in repair/replacement of Earth continuity conductor or main earthing lead fixed to wall on batten ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 4mm dia galvanised iron wire complete all as specified and directed by Engineer in charge.

M & L in repair/replacment of Earth continuity conductor or main earthing lead fixed to wall on batten ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 25x 4 mm dia galvanised iron strip complete all as specified and directed by Engineer in charge.

S&F in repair/replacement on wall/ concealed on wall, 40mm dia light grade GI pipes including all necessary fittings, solvents, complete all as specified and directed by Engineer in charge.

Supply and fix in repair/replacement of pointed air termination aluminium rod 12 mm dia, 300 mm long complete all as specified and directed by Engineer in charge.

Supply and fix in repair/replacement of Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw by Engineer in charge.

Supply and fix in repair/replacement of aluminium strip 25x3 mm complete with saddles and fixing screws for fitting the strip for lightening protection complete all as specified and directed by Eng-in-charge

Supply and fix in repair/replacment of GI Strip 32x6 mm with saddle and fixing screws etc from test terminal block to earth pit or lightening protection complete all as specified and directed by Eng-in-charge

M&L for PCC 1:3:6 Type C-I using 20 mm gradaed aggregate for PCC of size 0.15m x 0.15m x 0.15m cube with and including FRP dunnage block, MS ferule of suitable size and shape for mounting GI pipe 40 mm dia complete all as specified and directed by Eng-in-charge.

M&L for earthing complete with galvanised steel earth plate electrode 600x600x6mm thick, burried directly in ground ( earth pit not less than 2.25 mtrs below ground level) with top edge of the plate not less than 1.5 mtr normal ground level, connected to GI strip 32x6 mm as earth lead by means of bolts, nuts, check nuts and washers of GI or steel as shown in electrical plate No 3 connected to earthing test point all as specified and directed inclusing testing complete all as specified and directed by Eng-in-charge Note:- Earthing should be interconnected

M&L for Checking of earthing resistance and E-N voltage with calibrated earth tester meter and multimeter including recharging of conventional earthing of lightening arrestor of building /workshop/hanger /OTM/Md Accn etc at Naval Base Kochi complete with Supply of saline water filling to earth pit in adequate quantity, chemical and, maintaining the earth testing record, rectification of earthing related fault including marking the earth resistance value using on the earth display board Complete all as specified and as directed by Engr-in-charge Note: The earthing shall be tested in presence of user/user representative .

M&L for supply and fixing Earthing display/indication board of size 450mm x 300mm on angle iron made up of acrylic sheet of thickness min 2.5mm clearly indicating Earth pit Number, Testing date, resistance value and space for entering those values the existing earthing at any place and marking the earth resistance value using paint on the earthing chamber. Complete all as specified and as directed by Engr-in-charge Note: Excavation and pcc work will be measured and paid separately.

Supply and fixing Framed brackets of angles or tees for fixing indication boards at height of 60cm above ground level with web and flanges cut to shape, drilled and counter sunk for screw, including bending and welding angles, as necessary, gusset plates, riveting, etc.. n exc 10 kg each brackets, conforming to Fe.290.Gde-E-165 (Brackets over 10 kg each to be measured under 'Structural Steel') including two coats of synthetic enamel paint over a coat of red oxide metal primer. Bracket should be made from Angle iron of size 45x45mm and 6mm thickness Complete all as specified and directed by Engineer-in-Charge. Note: Excavation and pcc work will be measured and paid separately.

Excavating in post holes (or similar holes) each n exc 0.5 cu. m, getting out, returning, filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25 cm complete in soft/loose soil all as specified and directed by Enginnering-in-Charge.

M&L for maintenance free chemical earthing with 01 No of copper cladded 17mm dia nickel cadmium steel with high tensile strength electrode of each of 1.8m each jointed with suitable compressive coupler planted at depth not less that 1.80m depth and duly covered with low resistant superior conductive powdered non corrosive, concrete brand earth enhancing material all as directed including connecting up to the common bus bar for a length upto 7.5 m with copper strip of size 25 x 4mm to achieve an earth resistance of below 2.0 Ohms including suitable PCC earth chamber. The copper strip shall be jointed to electrode with exothermic welding and all other joints shall be properly brazed complete all as directed after dismantling the existing unserviceable earthing. Make: M/S JEF Techno Solutions (P) Ltd or other approved agencies

(i) One No earthing shall be connected for obtaining lowest earth resistance which shall be less than two ohm.(i) Electrode and copper strip of size 25 x 4 mm shall be welded using exothermic welding for interconnecting the earth electrodes and from earth to grid point up to15 m along with 40 mm dia GI light grade protection pipe. (ii) The carbon based compound shall have a resistance value of less than 0.1 ohm. The compound shall be of minimum not less than 35 kg per pit.(iii) The bore hole for earth electrode shall not be less than 100 mm dia and 2mtr deep from GL and the extended rod shall be driven to a total depth of 4 mtr.(iv) Provn of earth pit chamber of internal size 150 x 150 x 150 mm depth with PCC 1:3:6 cover slab 40 mm thick with re-enforcement of 8mm TMT bars @ 100mm c/c both direction for each are included in Earthing all as directed by Engineer-in-charge.(v) Necessary earth work excavation in any type of soil, returning filling and making good the surrounding area complete. (vi) All the joints Except test point shall be welded/ brazed properly and the copper earth strip whenever laid on the wall, floor etc shall be fixed on ceramic insulators not more than 600mm apart. (i) One No earthing shall be connected for obtaining lowest earth resistance which shall be less than two ohm.

Supply and fix Copper strip 20 x 3mm with saddles and fixing screws etc. for roof conductors / down conductors / connecting to earth pit to equipement including removing the old unserviceable strip and brazing all the joints complete all as directed..

Exacavation in trenches not exceeding 1.5 mtr in width and depth and getting out in hard and dense soil complete all as specifed and directed by Engineer-in-Charge. Note :- a) prior approval of station HQ is to be obtained to avoid loss of other co existing utility services b)The excavation has to be done manually only.

Exacavation in trenches not exceeding 1.5 mtr in width and depth exc 1.5m and not exceeding 3.00m and getting out in hard and dense soil complete all as specifed and directed by Engineer-in-Charge. Note :- a) prior approval of station HQ is to be obtained to avoid loss of other co existing utility services b)The excavation has to be done manually only.

Returing and filling in including levelling watering and well ramming into layers not exceeding 25 cm in hard/dense soil complete all as specifed and directed by Engineer-in-Charge.

Removal of excavated soil to a distance not exceeding 50 mtrs and depositing at a level not exceeding 1.5 mtr from starting point complete all as specifed and directed by Engineer-in-Charge.

Material and Labour for spreading riddled sand earth for cushioning and covering of the trenches complete all as specifed and directed by Engineer-in-Charge.

Taking down old unservicable earthing with GI wire/ GI strip any size complete all as specided and directed by Engineer-in- Charge

AS ENTERPRISES (BID ID -3380418)

M/s T.P SHAJI (BID ID -3380639)

Anaswara Constructions (BID ID -3380618)

HIGH TECH ENGINEERS AND CO (BID ID -3380896)

MS BUILDERS (BID ID -3380841)

ZOOM ENTERPRISES (BID ID -3380809)

Classic Builders (BID ID -3380644)

SAGA ENGINEERS (BID ID -3380636)

Bell Builders (BID ID -3368939)