Tender For Repair And Maintenance Of External Water Supply Distribution System At Khanabal Under Ge 861 Ews.; 1 Excavation in trenches not exceeding 1.5 Mtr wide and not exceeding 1.5 Mtr deep in any type of soil and getting out for taking down/laying Pipe lines of any description and in any position including forming sides and bottom surface to required level/ gradients complete all as specified and directed. 2 Returning filling in with excavated soil including spreading, levelling, watering and well ramming in layers of thickness not exc. 25cm in each layer complete all as specified and directed. 3 Removing excavated surplus soil to a distance not exc. 50 Mtr and depositing the soil where directed at a level not exceeding 1.5 Mtr above the starting point complete all as specified and directed. 4 M&L for Lagging to pipes used in internal water supply or plumbing all round with, 25min thick bonded mineral wool preformed ‘SNAP ON’ pipe sections of density 144 Kg/cum conforming to IS 9842 all as directed for the following pipe lines:- (a) GI Tubing 40 mm dia bore 5 (b) Ditto as per item no 4 above but GI Tubing 25 mm dia bore 6 (b) Ditto as per item no 4 above but GI Tubing 20 mm dia bore 7 (d)Ditto as per item no 4 above but GI tubing15 mm dia bore. 8 Disconnecting and taking up or down old existing steel tubing and connections of any description/grade and in any position in trenches/under floors/on walls etc complete all as directed and specified for the following sizes :-(a)80mm bore 9 (b) Ditto as per item no 8 above but50 mm bore 10 (c)Ditto as per item no 8 above but 40 mm bore 11 (d)Ditto as per item no 8 above but 25 mm bore 12 (e) Ditto as per item no 8 above but 20 mm bore 13 (f) Ditto as per item no 8 above but 15 mm bore 14 Laying only old steel water tubing and connections of any description/any grade and in any position obtained in serviceable condition from taking down, in new or old position as in trenches with using new fittings i.e. bends/Tee/ sockets/ reducers/elbow etc. including cutting/making new threads at the ends of old pipes for the following size all as specified and directed:-(a) 80 mm bore 15 (b)Ditto as per item no 14 above but 50 mm bore 16 (c) Ditto as per item no 14 above but 40 mm bore 17 (d) Ditto as per item no 14 above but 25 mm bore 18 (e) Ditto as per item no 14 above but 20 mm bore 19 (f) Ditto as per item no 14 above but 15 mm bore 20 Supply, laying, jointing and testing in trenches,galvanized iron water tubing medium grade (ISI marked) including provision of allnecessary steel fittings/ accessories complete all as specified and directed for the following sizes :- (a) 80 mm bore 21 (b) Ditto as per item no 20 above but 50 mm bore 22 (c) Ditto as per item no 20 above but 40 mm bore 23 (d) Ditto as per item no 20 above but 25 mm bore 24 (e) Ditto as per item no 20 above but 20 mm bore 25 (f) Ditto as per item no 20 above but 15 mm bore 26 Taking up/down existing 100mm bore cast iron pipe lines/water mains of any description and in position including fittings, accessories and fixtures etc existing in between pipe line, by taking out and opening any type of joints (Tyton/Gasket/Lead joints) complete all as specified and directed by the Engr-in-Charge 27 Laying only in trenches, flanged cast iron pipes 100 mm bore of any description/gradeandin any position (horizontal or vertical), as obtained from taking up or down, after making necessary addition / alterations and properly cleaning the pipes complete all as specified and directed by Engineer-in-Charge. 28 Supplying, laying, jointing & testing in repairs in trenches or vertically at OHT cast iron pipes 100mm bore with flanged ends vertically cast, class B, complete all as specified and directed by Engineer-in-Charge. Note :-(i)Earth work, Joints and CI specials/fittings of the pipes shall be measured andpaid for separately under appropriate item of Schedule `A 29 Supplying and fixing cast iron specials/fittings such as bend, tee, socket, collar, reducer, nipple, tail pieces etc. suitable for spigot and socketed/flanged end pipes upto 150 mm bore complete all as specified and directed by Engineer-in-Charge. 30 Supply, fixing, jointing and testing, ISI Marked, of approved quality, gun metal globe/gate valve with iron wheel head, both ends screwed for iron pipe including taking down old onecomplete all as specified and directed for following bore of pipes:- (a) 50mm bore 31 (b) Ditto as per item no. 30 above but 40mm bore 32 (c) Ditto as per item no. 30 above but 25mm bore 33 (d) Ditto as per item no. 30 above but 20mm bore 34 (e) Ditto as per item no. 30 above but 15mm bore 35 Supply, installation, fixing, jointing and testing, ISI Marked, of approved quality, cast iron sluice valves of class PN-1.6 conforming to IS-14846 of 2000 both ends flanged with iron wheel head and stainless steel spindle, long body type, jointedand tested including taking down old one complete all as specified and directed for following bores :- (a) 100 mm bore 36 (b) Ditto as per item no. 35 above but 80 mm bore 37 Supply and fixing, ISI Marked, of approved quality, size 100 mm bore cast iron non return valve, both ends flanged jointed and tested including taking down old one complete all as specified and directed. (Make Bir/Upadhayay/Sant as approved by GE )Note :- (i) Joints of the non return valve shall be measured and paid for separately under appropriate items of Schedule ‘A’ 38 Supply, installation, fixing, jointing and testing, ISI Marked, of approved quality, size 100 mm cast iron Butter fly valve both ends flangedand tested complete all as specified and directed. 39 Material and labour for rubber gasket joints in flanged end cast iron pipes and fittings complete with and including minimum 3 mm thick rubber /fibre gasket and necessary nuts/bolts/washers all as specified and directed for following sizes:- (a) 100mm bore 40 (b) Ditto as per item no. 39 above but 80 mm bore 41 Burring out run lead jointof 100 mm CI pipe line all as specified and directed:- (Note: Lead shall be recovered by burning out joints carefully from the existing joints of the water mains and shall be the contractor’s property and credit recovery shall be made for the same) 42 M & L for run lead joints for water supply CI pipe of size 100mm, complete all as specified by Engr-in-charge. 43 M&L for Cutting of the existing 100mm bore CI pipe line for rectifying leakage and reducing to required length, in position, for insertion of collars or other fittings including dewatering etc complete all as specified anddirected. 44 Ditto as per item No 43 above but size 80mm bore 45 Material and labour for fabricating and fixing on pipe line mild steel clamps of flat iron made to shape alongwith nuts, bolt washers etc suitable for pipe line all as specified and directed by Engineer-in-Charge for stopping leaking of pipe lines of any description and in any position clamps shall be shape and size as approved, tightened with suitable nuts, bolts washers as directed by Engineer-in-charge. Note: - (i) Weight of clamps including nuts, bolts and washer shall be measured for payment purpose.(ii)Clamp shall be tightened with using suitable rubber washers.(iii)Clamp shall be provided with two coats of black bituminous paints over a coat of red oxide primer after preparation of surface. 46 Material and labour for construction of brick masonry valve pit /chamber complete with 3mm thick MS sheet cover with locking arrangement of size 600mm x 600mm x 600mm(depth) (internal dimensions) as shown on Drg No CWE /TD/129 sheet No 1/1 dated 18.12.87 with and including necessary excavation & earth work in any type of soil including dismantling & breaking down the existing valve pit chamber of any size and any shape complete all as specified and directed by Engineer-in-Charge. Note: The drawing is not being supplied with Tender Documents, however the same is available in GEs office and can be collected/referred during working hours at any working day. 47 Descriptionall as per item No 46 above but of size 900mm x 900mm x 900mm (depth) (internal dimensions) 48 Material and labour for rectifying leakage of GI pipe line including excavation in mud (not exc 0.7m x0.7mx 6.1m) and making arrangement for dewatering by using electric/diesel pump/manual additional labour, for taking out old jointing fitting and S&F new one jointing fitting such as socket, nipple, union, elbow and reducers complete all as directed for following size of pipe lines:- (a) 80 mm bore 49 (b) Ditto as per item no. 48 above but 50 mm bore 50 (c) Ditto as per item no. 48 above but 40 mm bore 51 (d) Ditto as per item no. 48 above but 25 mm bore 52 (e) Ditto as per item no. 48 above but 20 mm bore 53 (f) Ditto as per item no. 48 above but 15 mm bore 54 Supply and fixing in repairs of GI union complete all as specified and directed for following bore of pipes:- (a) 50mm bore 55 (b) Ditto as per item no. 54 above but 40mm bore 56 (c) Ditto as per item no. 54 above but 25mm bore 57 (d) Ditto as per item no. 54 above but 20mm bore 58 (e) Ditto as per item no. 54 above but 15mm bore 59 Supply and fixing in repair of GI elbow complete all as specified and directed for following bore of pipes:- (a) 50mm bore 60 (b) Ditto as per item no. 59 above but 40mm bore 61 (c) Ditto as per item no. 59 above but 25mm bore 62 (d) Ditto as per item no. 59 above but 20mm bore 63 (e) Ditto as per item no. 59 above but 15mm bore 64 M&L for scraping removing and cleaning of interior/outersurfacesof Over head tankreservoir of capacity 25000 Gallons at 36 feet staging heightcleaning with Alum water with brush after removing the mud/silt from inside the tankincluding two coats of lime based white wash inside tank and two coats of cement based paintoutside the tank upto satisfaction of Engr-in- charge includingwriting date of cleaning and capacity of tank with synthetic enamel paint of size 10cm height on tank complete and all as specified and ditrected. 65 Ditto all as per item No 64 above but capacity 50000 Gallons 66 Lifting from bore well and Disconnecting the existing non functional submersible pump set from supply, dismantling existing CI bend from non return valve, removing and lifting out submersible pump set of any description and capacity & in any position, alongwith existing column pipe and existing submersible cable of any size from the bore well (approximately 40 mtr depth of pump set from GL) complete all as specified and directed by Engineer-in-Charge.NOTE: -Contractor shall take proper precautions while lifting out and removing pump set from bore well so as to avoid any damage to column pipe and submersible cable.All necessary T&P and equipment required for lifting out pump set etc shall be arranged by the contractor at his own cost and nothing extra shall be admissible on this account. 67 Dismantling and strip opening of submersible pump & motor of any description and in any position for servicing /overhauling, cleaning, oiling/greasing, fixing of serviceable parts in position, removing & replacement of defective/unserviceable parts with new parts, reassembling the Pump & motor, ensuring proper alignment of pump and motor, fixing in position, connecting to existing system and testing at site on full load to the entire satisfaction of the Engineer-in-Charge for the following capacities pumps & motors :-(a) 20 to 25 HP, three phase, 415 Volts, 50 Hz, AC supply Note :- Spare parts shall be measured and paid for separately under relevant items 68 Supply and replacing the following unserviceable items/partsupper & lower rubber housing bush, stainless steel rotor sleeve and thrust bearing complete of AC submersible motor of any description & any capacity, all as specified and directed by the Engineer-in-Charge 69 Machining, grinding balancing and reconditioning workfor the Rotor, stator item & capacities of the submersible motorsof any description, complete all as specified and directed by the Engineer-in-Charge. 70 Supply and replacing the following unserviceable items/parts Gun metal bush, neck ring, impeller, spacer and pump key for multistage submersible pump of any description, 10 to 25 HP capacity, all as specified and directed by the Engineer-in-Charge 71 M&L for taking out & removing old burnt out windings of the submersible electric motors of following capacity and rewinding of submersible electric motors with existing size PVC insulated, copper conductor as approved by the Engineer-in-Charge including cleaning the slots with carbon- tetra-chloride solution before rewinding ,transportation to site, fixing etc complete all as specified and directed by Engineer-in-Charge:-(a) 10 to 25 HP, three phase, 415 Volts, 50 Hz, AC supply 72 Lowering down in bore well of the submersible pump set after repair of any description and any capacity & in any position, in bore well alongwith column pipe and submersible cable of any size (approximately 40 mtr depth of pump set from GL) complete all as specified and directed by Engineer-in-Charge including making necessary electric connections & testing the pump set after lowering.NOTE:-Contractor shall take proper precautions while lowering pump set in bore well so as to avoid any damage to column pipe and submersible cable.All necessary T&P and equipment required for lifting out pump set etc shall be arranged by the contractor at his own cost and nothing extra shall be admissible on this account. 73 Dismantling/taking down of existing dosingpump with connecting accessories and repair/replacement with plastic shaft and impeller all as per existing make and model of unserviceable/worn out granular chlorination, high pressure, single head, gear motored adjustable dosing pump having out put 0 to 5 ltrs per hour, adjustable high pressure upto 10kg/sqcm with and including level gauge, agitator 120 watt 900RPM, single mounted motor with plastic shaft and impeller complete all as specified and directed by Engineer-in-Charge. 74 Dismantling the complete pump set of capacity 10HP from foundation channel after disconnecting all inlet and outlet connections, carrying the same to workshop, dismantling of pump, cleaning thoroughly and taking down worn out parts such as Ball bearing, Impeller, rubber coupling, bushes, brass ring, studs, replacement of the same with new, lath work of pump shaft, impeller if required, reassembling, commissioning and testing after fixing on original site for smooth functioning up to the entire satisfaction of Engine-in-Charge complete all as specified and directed. 75 Dismantling the electric motor induction motorassembly of pump set of capacity10 HP from the foundation after disconnecting the electric connection, carrying the same to workshop, dismantling of electric motorand taking down worn out windings of rotor field coils and excitor coils, rewinding the startor, rotor and excitor gauge, replacement of insulation material, heat varnishing provision of connecting leads and terminal plates etc to make the electric motorfully serviceable, reassembling the motor shifting back to the installation, assembling the same with engine making electric connections, testing and commissioning complete all as specified and directed by Engineer-in-Charge. 76 S&F in repairs 10 Sqmm, 3 Core, flat submersible Cable, PVCinsulated, PVC sheathed with multi-stranded copper conductors, 1100 Volt grade, complete all as specified and directed by Engineer-in-Charge. 77 S&F in repair 16 Sqmm, 3 Core, flat submersible Cable, PVCinsulated, PVC sheathed with multi-stranded copper conductors, 1100 Volt grade, complete all as specified and directed by Engineer-in-Charge. 78 S&Fin repairs fully automatic star delta starter suitable for 30 HP, 415 volt, 50 HZ AC supply electric motor contactor size 32 Amp , over load relay 28-42 Ampall as specified and directed by Engr-In-Charge. 79 S&Fin repairs fully automatic star delta starter suitable for 25 HP, 415 volt, 50 HZ AC supply electric motor contactor size 32 Amp, over load relay 28-36 Ampall as specified and directed by Engr-In-Charge. 80 S&F connecting and testing change over switch 4 pole 415 volts on load of rating 100 Amp and including sheet enclosures complete including taking out old unserviceable switch complete all as specified and directed. 81 Periodicallymaintenance of hot water plant capacity100000 Kcal/hr/200000 Kcal/hrincluding Checking serviceability of burner, control panels,pressure gauge, temperature gauge,thermostat or temperature controller device, connection of water and flue gas pipes,hot water and cold water pumps, cleaning and servicing of boilerincluding any other safety devicecomplete all as specified and directed. 82 (a) S&F Relay,suitable forhot water cap 200000 Kcal/hr 83 (b)S&F Power contactor for hot water generator as per sample 84 (c)S&F Oil pump of suitable size for cap 100000 Kcal/hras per sample 85 Supply, installation, testing and commissioning of submersible pump and motor complete set 25 HP 100mm dia, 600 LPM discharge at 140 mtr head including lifting of old and lowering of new pump set depositing old pump and motor to MES store complete all as specified and directed by Engineer-in-Charge. 86 S&F steel wire rope having 6mm x 19 steel core with ISI test certificate for load class including making suitable fixing arrangement to hold submersible pump and motor 20 to 30 HP with column pipe 10 feet long 5 nos complete all as specified and directed by Enginner-in-charge
