REPAIR MAINT REPLACEMENT OF OLD CI GI WATER SUPPLY PIPE LINE SUBMERSIBLE PUMP SET CHLORINE DOZING PUMP PRESSURE FILTER and BORE WELLS AT VARIOUS LOCATIONS OF SEVOKE

Amount

PART-I

Excavation in trenches not exc 1.5 mtr wide and not exc 1.5 mtr in depth and getting out excavated material for laying/ taking out pipe line in any type of soil complete all as specified and directed

Returning, filling in including spreading, levelling, watering and well ramming in layers not exc 25 cm in each layer in any type of soil complete all as specified and directed

Removal of surplus soil to a distance not exc 50 mtr and depositing where directed at a level not exc 1.5 mtr above the starting point in any type of soil all as specified and directed

Taking up or down from any position existing GI water tubing and connections carefully including cleaning for refixing or removal to E/M store yard complete all as specified and as directed for following sizes:- Note :- Excavation/earth work shall be measured and paid seperately under respective item of schedule considered here-in-before

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

80 mm bore

100 mm bore

Relaying/refixing of old serviceable water tubing, jointing and testing as obtained from item No. 4 here-in-before in new or existing position including all new fittings, ISI Marked, such as bends, elbow, tee, reducers, sockets, unions etc as required, laid in trenches, fixed to wall/cellinng or floors including making holes in wall where required complete all as specified and directed by Engr-in-charge for the following sizes:-

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

Supply, laying, jointing & testing galvanised iron tubing medium grade with all fittings such as bends, elbow, tee, socket, reducers, unions etc as required at site laid in trenches complete all as specified and directed for the following sizes:-

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

Supply, laying, jointing & testing galvanised iron tubing medium grade with all fittings such as bends, elbow, tee, socket, reducers, unions etc as required at site fixed to wall, ceilling, floor etc complete all as specified and directed for the following size:-

15 mm bore

20 mm bore

25 mm bore

S&F in repair gun metal gate/globe valve, ISI Marked, with iron wheel headed screwed both ends for pipe including taking down unserviceable complete all as specified and as directed the following sizes:-

50 mm bore

25 mm bore

20 mm bore

15 mm bore

S&F in repair PTMT ball valves, high pressure with epoxy coated aluminium rod & high dencity plastic ball and complete ISI Marked screwed for iron pipe and fixed complete for the following sizes:-

25 mm bore

20 mm bore

Cutting of existing cast iron/DI pipes in any position for insertion of new fittings such as Tee, Coller, Tail pieces etc for taking out connections, branch connections complete all as specified and directed for the following sizes:- Note :- 1. Excavation/earth work shall be measured and paid seperately under respective item of schedule considered here-in-before 2. Cast iron fittings shall be measured and paid seperately as supply only under respective item of the schedule

150 mm bore

100 mm bore

80 mm bore

Taking out cast iron/Ductile iron/PVC/Cemented water mains including all fittings with flanged joints/tyton joints/ spigot and socket ends for the following sizes :- Note :- Excavation/earth work shall be measured and paid seperately under respective item considered here-in-before

150 mm bore

100 mm bore

80 mm bore

Supply, laying, jointing and testing of Ductile iron water mains Class K-7 with spigot and socket ends including rubber gasket joints laid in trenches complete all as specified and directed for the following sizes :-

150 mm bore

100 mm bore

80 mm bore

Supply, fixing and testing DI fittings for spigot & socketed or flanged pipes i.e. bends, reducers, tail pieces, tapers, tees, collars, caps, plugs with MS plate, nuts, bolts, washers gaskets etc of sizes 80mm to 200mm dia including taking out Unserviceable complete all as specified and directed .

Supply, fixing and testing cast iron fittings for spigot & socketed or flanged pipes i.e. bends, reducers, tail pieces, tapers, tees, collars, caps, plugs with MS plate, nuts, bolts, washers gaskets etc of sizes 150mm dia including taking out Unserviceable complete all as specified and directed .

M&L for boring drilling, threading and tapping on existing cast iron mains for size 80 mm to 300 mm bore for connecting 15/20 mm bore pipe by fixing on clamp made out of MS flat iron of size 40 x 3 mm made to required shape & size with GI socket duly welded, nut & bolts etc. complete all as specified and directed.

M&L burning out Lead Joint in Cast Iron Pipes 100mm bore (dia) in Position including recovering old Lead, complete all as specified and as directed. Note- Excavation & earth work if required shall be measured and paid under appropriate Item

M&L burning out Lead Joint in Cast Iron Pipes 150mm bore (dia) in Position including recovering old Lead, complete all as specified and as directed. Note- Excavation & earth work if required shall be measured and paid under appropriate Item

M & L run lead joints for pipes and fittings (spigot and socket ends) 100 mm bore (dia) and testing complete all as specified and as directed.

M & L run lead joints for pipes and fittings (spigot and socket ends) 150 mm bore (dia) and testing complete all as specified and as directed.

Labour only run lead joints for pipes and fittings (spigot and socket ends) 100 mm bore (dia) and testing complete all as specified and as directed.

Labour only run lead joints for pipes and fittings (spigot and socket ends) 150 mm bore (dia) and testing complete all as specified and as directed.

S & F sluice valve PN 1.6 with Stainless steel spindle nuts, bolts, washers and rubber gasket sheet for packing including taking out existing unserviceable sluice valve fixed at any position all as specified and directed by Engr-in-Charge. Note : Joints & Jointinging materials are deemed to be included in the unit rate of item.

200 mm bore

150 mm bore

100 mm bore

80 mm bore

Relaying only Steel Tubing 100mm bore and Connections in new or old position in trenches, (serviceable Pipes and Connections obtained from Item No.4 here-in-before) complete all as specified and as directed. NOTE : (i) GI Flanged sockets, rubber or fibre board gasket wherever required will be Measured and Paid separately under respective Items at Supply only rate. (ii) Labour element involved for replacement of flanged sockets, rubber gasket, nuts bolts etc shall deem to be included in the QUOTED UNIT RATE.

Relaying only Steel Tubing 80mm bore and Connections in new or old position in trenches, (serviceable Pipes and Connections obtained from Item No.4 here-in-before) complete all as specified and as directed. NOTE : (i) GI Flanged sockets, rubber or fibre board gasket wherever required will be Measured and Paid separately under respective Items at Supply only rate. (ii) Labour element involved for replacement of flanged sockets, rubber gasket, nuts bolts etc shall deem to be included in the QUOTED UNIT RATE.

Supply only GI Flange of 80mm dia pipe complete all as specified and as directed. NOTE : Mild Steel Nuts, Bolts, Washers,rubber gasket etc. as required shall deem to be included in the QUOTED UNIT RATE.

Supply only GI Flange of 100mm dia pipe complete all as specified and as directed. NOTE : Mild Steel Nuts, Bolts, Washers, rubber gasket etc. as required shall deem to be included in the QUOTED UNIT RATE.

M&L for construction of valve chamber with MS sheet cover 3mm thick with angle iron) frame of size 50 x 50 x 6mm and locking arrangements including excvation and earth work in any type of soil,PCC (1:4:8) type D2 in foundation ,PCC benching 1:2;4 type B-1 ,PCC (1:5:8) block masonry 20 cm thick in cement mortor (1:6),10 mm thick plastering in CM 1:4 ,PCC bed in (1:3:6) and coping 50mm hick in cement concrete 1:2:4 type B1 using 20mm stone aggregate including necessary formwork,painting one coat of red oxide and two coats of bituminious black paint on all steel surfaces as specified and as directed of sizes 1200mm x 1200mm x1200mm (internnal dimensions) including demolition of existing valve chamber,and excavation & earth work complete all as specified and as directed.

PART-II

M & L for taking out submersible pump set of any capacity from bore well complete with column pipes of any size, submersible cable and steel wire rope and lowering the same in bore well after carry out necessary repairs/lowering of spare Pump including T & P arrangement complete all as specified and as directed.

M&L for transportation of defective pump set to workshop and dismantling the same incl Disconnecting electrical connections decoupling, 440 volts AC submersible/Centrifugal electrical motor of following capacities, dismantling the motor,taking out burnt winding wire from the stator, cleaning of the casing and the stator with wire brush, rewinding of motor with superior quality copper winding wire of existing size including varnishing and drying, cable jointing and repair replacement of worn out parts of pump reassembling the same with motor installing the motor and pump , reconnecting all pipe and electric connections and testing on full load complete :- Note : Spare parts replaced shall be measured & paid seperately under respective item of schedule. Cost of rewiring and winding materials is included in quoted item rate.

Remetalling turning & polishing of motor shaft of submersible motor of capacity 5 HP to 20 HP complete all as specified and as directed by Eng-in-Charge.

Replacement of following defective parts of submersible motor of capacity 5 HP to 20 HP HP of make : KSB/ Calama/Lubi /Anand/ Vimal

(a) Bearing bush gun metal

(b) Bearing bush rubber

(c) Oil Seal.

(d) Brass thrust plate

(e) CI Thrust bearing

(f) CI thrust casing

(g) Stainless steel sand guard

(h) CI lower housing for resting of shaft.

(j) CI upper housing for resting of shaft

(k) CI connecting piece at drive end

Replacement of unserviceable stainless steel coupling & key common for submersible pump and motor shaft complete all as specified and as directed.

Supply & fix in repair Pressure guage of capacity 210 kg/cm2. complete all as specified and as directed.

S & F in repair DOL submerssible pump controller in sheet metal enclosure MUG type Make: L & T Cat Part SS97756 or equivalent in BCH /Siemens for 6 HP Motor Rating AC-3 Duty, 415V, 50Hz, 3 phase all as specified and directed by Engr-in-Charge

S & F in repair DOL submerssible pump controller in sheet metal enclosure MUG type for Make: L & T Cat Part No.SS95983l, or equivalent in BCH /Siemens 10 HPMotor Rating AC-3 Duty, 415V, 50Hz, 3 phase all as specified and directed by Engr-in-Charge

Supply and fix in repair Fully automatic star delta starter in sheet metal enclosure with single phase preventor for 10 HP motor. Complete all as specified & directed. Make : BCH Part No. NASAJLEN or equivalent in Siemens / L&T

Supply and fix in repair Fully automatic star delta starter in sheet metal enclosure type with single phase preventor for 15HP motor.Complete all as specified & directed. Make : BCH Part No. NASAKLEN or equivalent in Siemens / L&T

Supply and incorporation of MNO2 of size 1/8'' x 1/10'' as filter media of iron removal plant ,complete all as specified & directed.

Supply and incorporation of GRAVEL of size 1 1/4'' x 1 1/2''(collection sourceBARAKAR river bank) as filter media of iron removal plant complete all as specified & directed.

Supply and incorporation of GRAVEL of size 1/2'' x 1''(collection sourceBARAKAR river bank) as filter media of iron removal plant complete all as specified & directed.

Supply and incorporation of GRAVEL of size 1/4'' x 1/2''(collection sourceBARAKAR river bank) as filter media of iron removal plant complete all as specified & directed.

Supply & incorporation of SAND of size 1/6" x 1/8'' mesh (collection source BARAKAR river bank) as filter media of iron removal plant complete all as specified & directed.

Supply & incorporation of Anthracite grit of size 1/8" x 1/4'' as filter media of iron removal plant complete all as specified & directed.

Supply & fixing PVC strainers of sizes as dismantled of Make: PHI/RMCO, complete all as specified & directed.

Servicing / over hauling of Electric driven Vertical / Horizontal split casing Pump set of Discharge cap 160 Cum / Hr, H-50 M (Pump Make-Kirloskar Brothers Ltd.) coupled with induction Motor 30 HP capacity along with following others repairs. Note :- a). Taking out Pump from its Position by decoupling from Motor and disconnecting all suction /delivery water connections , setting aside Pump from base plate , b).Dismantaling of Pump complete part by part carefully , degreasing bearing and display all the parts without damaging any portion for inspection of Engineer-in- Charge to ascertain the serviceability of existing parts. c). Replacement of Gasket set and gland packing rope .

Note for Item No. 47 Contd..... d). Reassembeling the Pump complete with all existing serviceable parts , greasing the bearing with bearing grease , and new parts as ordered by Engineer in Charge. ( New parts shall be measured and paid separately under appropraite Item here-in-after) e) Reinstall the Pump at its existing Position , couple with the Motor and connecting all suction delivery water connections and testing on completion

Note for item No. 47 (i). Any Parts required for replacement shall be measured and paid seperately under appropriate item as ''Supply only'' (s) of this schedule. However labour element involved in replacement is included in unit rate quoated against this Item. (ii). .Any unforeseen minor repair and minor parts ( Total cost less than Rs 200 ) that are not covered under relevant Item but required to complete the repair work / smooth functioning of Pump shall be deemed to be included in the unit rate .Transportation of pump, shaft impeller bushing for machining , welding , turning at lathe shop at workshop are also deemed to be included with unit rate. iii). Welding Turning , any machine work where involved to Pump shaft shall be measured and paid separetely against relevant item of this schedule.

Supply only the following Items of Pump coupled with 30 HP Motor to incorporate against Item here-in-above

DE ( Driver End ) bearing as per existing size Make- SKF, NBC

NDE ( Non Driver End ) bearing as per existing size Make- SKF, NBC

Pump Shaft

S&F of 3 phase Digital panel volt Meter Flush Mounting 96x96mm, Accuracy Class-I, input voltage measuremetn range 17-520V AC (P-P), including taking out unserviceable complete all as specified and as directed.

S&F of 3 phase 5A, Digita panel ammeter Flush Mounting 96x96mm, Accuracy Class-I, CT/PT Site programmable including taking down existing unserviceable one complete all as specified and as directed.

S&F of 3 phase indicator lamp including taking down existing set complete all as specified and as directed by Engr-in-Charge

Supply and fix GI submersible column pipe "Heavy duty" 100 mm bore of length 3 meter long each, threaded at both male & female ends and with separate integral female long threaded socket,of 100 mm bore Complete all as specified & directed

Development of tube well using conventional method by means of air compressor of suitable capacity at least 12 hours minimum, untill sand free/ mud free, clean water obtained from the existing deep tube well, taking up & down of submesible pumping set with column pipe also include in quoted rate & complete all as specified and directed.

MUKHERJEE AND SONS

D.D. BROTHERS

M/S S.B. CONSTRUCTION

SRI SURAJIT SENGUPTA

M S ALOK SAHA

CHANDAN TRADERS