REPAIR/ REPLACEMENT OF EXTERNAL WATER SUPPLY ALONGWITH CONNECTED SERVICES VARIOUS SEWAGE/SUMP/CENTRIFUGAL PUMP SETS AND CONNECTED WORKS OF 6 WG AF STN BARRACKPORE UNDER GE (AF) BARRACKPORE

Amount

Supply and fix in repair on load change over switch (open execution) complete with of capacity 160 Amp, 415 Volt, 4 pole, 50 HZ complete all as specefied and directed. Make : Havells / Legrand / HPL / L&T.

Supply and fix in repair on load change over switch (SS enclosure) complete with of capacity 160 Amp, 415 Volt, 4 pole, 50 HZ complete all as specefied and directed. Make : Havells / Legrand / HPL / L&T.

Supply and fix in repair MCCB 63 Amps current capacity, 415V, 16 KA, 4 Pole , adjustable thermal and magnetic type complete all as specified and directed.

Supply and fix in repair 100mm dia water pressure gauge (1-10 Kg/ sq cm) bearing ISI marked complete all as specified and directed.

Supply and fix in repair dosing Injector max pressure 10 Kg/ sq cm and max flow rate 10 Ltr / hr with complete accessories like lead, NRV, tubing, check valves complete all as specified and directed.

Supply and fix in repair agitator motor (induction motor) for chlorine dosing system 220 V, 120 Watt, 900 RPM single phase flange mounted motor (with plastic shaft and impeller for make liquid solution complete all as specified and directed.

Dismantling of sewage non-clogging centrifugal pump set of 5/7.5HP capacity from sewage sump after disconnecting all electrical connections and sewage pipe lines and repair, servicing and overhauling and refixing after necessary replacement of following spares complete all as specified and directed. Rate for insulated paper sleeves shall be deemed included in the quoted rate. Note: Spare parts shall be measured and paid seperately under respective items.

Supply only Bearing No 6250. Make:TATA/SKF

Supply only Gasket set as per existing size.

Supply only Impeller CI as per existing size.

Supply only Pump shaft as per existing size.

Material and labour for rewinding of motor of capacity 5/7.5 HP non-clogging centrifugal sewage pumpset with super copper enameled wire and varnishing complete including changing of bearing on both ends, mechanical seals and 'O' rings at drive end re-coupling to the pumpset to original position including testing and commissioning of motor complete all as specified and directed.

Disconnecting the pump set of 5Hp / 7.5 HP from swimming pool and repair, rewinding with good quality varnishing motor winding to improve the insulation capacity and refixing the pump set after repair and overhauling complete all as specified and directed. Note: Spare parts shall be measured and paid seperately under respective items.

Supply only Bearing NO 6204. Make:TATA/SKF

Supply only Gasket set as per existing size.

Supply only Coupling as per existing size.

Supply only Fan Blade as per existing size.

Supply only Impeller CI as per existing size.

Disconnecting the Centrifugal pump set of 10 HP capacity from under ground reservoir and repair, rewinding with good quality varnishing motor winding to improve the insulation capacity and refixing the pump set after repair and overhauling complete all as specified and directed. Note: Spare parts shall be measured and paid seperately under respective items.

Supply only Bearing as per existing size. Make:TATA/SKF

Supply only Gasket set as per existing size.

Supply only Coupling as per existing size.

Supply only Fan Blade as per existing size.

Dismantling by lifting of vertical turbine pump set of capacity 90 HP complete including gear head, oil tank, motor, oil tube, discharge head, tension nut assembly, line shaft bearing, line shaft, pipe coupling, column pipe, line shaft coupling bowl shaft, discharge case, bowl bearing, impeller and suction case with help of chain pulley and refixing the same in position by using following spares and lowering to provide greasing, overhauling complete all as specified and directed. Note: (i) Spare parts shall be measured and paid seperately under respective items. (ii) Lowering of the pump set is included in the quoted rate.

2.5 inch bronze screw bearing.

Adaptor of Bowl as per existing size.

3/16 oil seal

11/16 X 10' MS Shaft

11/16 X 5' MS Shaft

2.5" T.T nipple

T.T Nut Bush GM as per existing size.

18" X 2.5" spider

Adapter Bearing as per existing size.

Shaft Coupling as per existing size.

Bowl Bush GM 2.5"

Suction case Bush GM as per existing size.

SS Top Shaft as per existing size.

S S Line Shaft as per existing size.

SS Pump Shaft as per existing size.

Material and labour for repairs to housing of 90 HP turbine pump set to prevent the leakage of motor with necessary arc welding as required at site including painting with one coat of synthetic enamelled paint of existing colour code complete all as specified and directed. Location: Sump pump house at 6 wg. Note: (i) Necessary 3 phase welding machine to be arranged by the contractor at his own cost. (ii) Leak proof to be confirmed by Engr-in-charge.

Disconnecting of electric cable from the panel board and taking out burnt submersible pumping set of capacity 20 HP to 25 HP by using chain pulley arrangement including dismantling of 100/150 mm dia MS/CI column pipe and including taking out the pump from the motor and opening of submersible pump for repair and replacement of unserviciable parts including re-fixing after repair and testing and commissioning complete all as specified and directed. Note : (i) The Quoted rate shall be included for transporation of pumping set from pump house to workshop for repair and return to pump house after repair. (ii) Spare parts shall be measured and paid seperately under respective items.

Supply only head of existing size.

Supply only gun metal bowl bush of existing size.

Supply only CI impeller of existing size.

Supply only impeller bush of existing size.

Supply only discharge case bush of existing size.

Supply only oil seal of existing size.

Supply only shaft sleeve of existing size.

Supply only shaft nut of existing size.

Supply only sand guard of existing size.

Supply and fix in repair stuffing box bearing of pump of capacity 20HP to 25HP as per existing size complete all as specified and directed.

Supply and fix in repair stainless steel pump shaft coupling of pump of capacity 20HP to 25HP as per existing size complete all as specified and directed.

Supply and fix in repair stainless steel pump shaft of pump of capacity 20HP to 25HP as per existing size complete all as specified and directed.

Disconnecting of electric cable from the panel board and taking out burnt submersible pumping set of capacity 10 HP to 15 HP by using chain pulley arrangement including dismantling of 100/150 mm dia MS/CI column pipe and including taking out the pump from the motor and opening of submersible pump for repair and replacement of unserviciable parts including re-fixing after repair and testing and commissioning complete all as specified and directed. Note : (i) The Quoted rate shall be included for transporation of pumping set from pump house to workshop for repair and return to pump house after repair. (ii) Spare parts shall be measured and paid seperately under respective items.

Supply only head of existing size.

Supply only gun metal bowl bush of existing size.

Supply only CI impeller of existing size.

Supply only impeller bush of existing size.

Supply only discharge case bush of existing size.

Supply only oil seal of existing size.

Supply only shaft sleeve of existing size.

Supply only shaft nut of existing size.

Supply only sand guard of existing size.

Supply and fix in repair stuffing box bearing of pump of capacity 10HP to 15HP as per existing size complete all as specified and directed.

Supply and fix in repair stainless steel pump shaft coupling of pump of capacity 10HP to 15HP as per existing size complete all as specified and directed.

Supply and fix in repair stainless steel pump shaft of pump of capacity 10HP to 15HP as per existing size complete all as specified and directed.

Material and labour for rewinding of submersible motor with super enameled copper wire including removing burnt winding cleaning of slots separation of rotor and starter making insulation to all joint and replacement of the following un serviciable parts of motor and testing and commissioning complete all as specified and directed. Note: Spare parts shall be measured and paid seperately under respective items.

Supply only bearing bush upper of existing size.

Supply only bearing bush lower of existing size.

Supply only balancing ring of existing size.

Supply only jointing kit of existing size.

Supply only oil seal of existing size.

Supply only gun metal rotor housing bush of existing size.

Supply and fix in repair stuffing box shaft with stud holes of motor as per existing size complete all as specified and directed

Supply and fix in repair stainless steel pump shaft coupling of motor as per existing size complete all as specified and directed.

Material and labour for lifting and lowering of the submersible pump set by using the chain pulley arrangement with fixing of column pipe of any size , including nut, bolts, washers, and rubber gasket and tightening of submersible cable with pipe and connected of submersible cable from existing panel board complete all as specified and directed.

Material and labour for repair, servicing, and overhauling, of Air compressor and replace the unserviciable parts and refixing the Air compressor after repair complete all as specified and directed. Note: Spares parts shall be measured and paid separately under respective items.

Supply only 15mm dia gun metal sluice valve.

Supply only bearings of existing size.

Supply only backup ring of existing size.

Supply only pressure Breaker for Radial ring of existing size.

Supply only tangent ring of existing size.

Supply only gasket of existing size.

Supply and fix 3 core flat copper cable, PVC insulated, PVC sheathed for submersible pump set 1100 volt, 6 sqmm size including taking down the old unserviciable existing copper cable complete all as specified and directed.

Supply and fix in repair fully automatic star delta starter of 30 HP, 415 V, 50/60 Hz, MU-G30 for submersible motor including making connection and testing complete all as specified and directed.

Material and labour for repair and maint of star delta starter of any capacity after disconnecting of incoming / outgoing connection, checking the serviceability of all components i.e existing contactors, over load relay, timer, single phase preventer, indicator lights, replacement of burnt out PVC insulated copper wire, copper thimble, re-connect the same after thoroughly cleaning and testing complete all as specified and directed. NOTE : Spare parts shall be measured and paid separately under respective items.

Supply only contactor of capacity 40 Amp, 3 Pole, 415 Volt, AC rating 3, Type MNX 40 including auxiliary contact block NO & NC.

Supply only thermal overload relay of range 24-40A.

Supply only star delta timer adjustable type from 3 to 120 sec.

Supply only single phase preventer, SPPR type SDz5, 380V (for MU-G30/40/50/75).

Material and labour for repair, servicing, and overhauling of Altoc dozing pump of capacity 10 kg/sqcm and replace the unserviceable parts and refixing the pump complete all as specified and directed. NOTE : Spare parts shall be measured and paid separately under respective items.

Supply only NRV (injection check valve) of existing size.

Supply only NRV (injection check valve) spring of existing size.

Supply only diaphragm (teflon faced) of existing size.

Supply only solenoid coil with body of existing size.

Supply only pulsar circuit of existing size.

Supply only ring seal of existing size.

Supply only LDPE pipe of existing size.

Supply only discharge/suction valve assembly of existing size.

Supply only foot valve assembly of existing size.

Material and labour for dismantling of pump set up of 5HP capacity for fountain from the position / base plate by disconnecting the electrical connections and GI tubing etc for repairs to impeller and re-fixing / connecting the pump after repair at work shop complete all as specified and directed. Note: spares shall be paid and measured separately under respective items.

Supply only ball bearing of existing size.

Supply only high tensile steel shaft of existing size.

Supply only cast iron pump body (outer case) of existing size.

Supply only pump MS base frame of existing size.

Supply only MS pump coupling of existing size.

Supply only rubber star coupling of existing size.

Supply only motor terminal box of existing size.

Material and labour for lifting of submersible pump set of capacity 10 to 25 HP including taking out of column pipe upto full depth of all pipes of size 80mm to 100mm flanged type and replacing unserviciable column pipes same size and type of 08 length @ 3mtr each and replacing corroded nut bolts of flanged column pipes 32 Nos and replacing rubber gasket for 08 x joints after dismanling all kind of electric and water supply connections, including cleaning of borewell upto 100 mtr or as per existing depth by using heavy compressor ( min 10-12 hrs) having pressure of 20 kg above to flush out the muddy and dirty water with adequate pressure till the achivement of smell free water cleaning of porous of wall of the borewell by using compressor air blower testing of TDS of water of desired result complete at site after lowering the pump sets and cable complete all as specified and as directed.

Supply only Bleaching powder stable of 33% chlorine complete all as specified and directed.

Supply only Soda Ash ( caustic soda 100% pure) for Iron removal dozing plant complete all as specified and directed.

Supply only calcium hypo-chloride 65% to 70% chloride content in chlorine in granular for water treatment in factory sealed HDPE container of 45 Kg each complete all as specified and directed.

Supply only Trichloro Isocyanuric Acid (TCCA) having 90% available chlorine -available in powder, granular and tablet (200 gm) in the form of 50 Kg drum complete all as specified and as directed. Note for item No 34.00 to 37.00 :- The contractor shall produce original purchase voucher with manufacturer's test certificate mentioning date of manufacturing, batch No, date of expiry of materials etc before releasing payment.

BHAUMIK CONSTRUCTION

Das and Brothers

CHANDRA CONSTRUCTION AND CO

NC BOSE AND CO

M/S. TAPAS ENTERPRISE

JAGATRAM CONSTRUCTION