REPAIR MAINTENANCE OF WATER DISTRIBUTION LINES FOR ARBORICULTURE AND ALLIED WORKS FOR WATER SUPPLY AT NASA CERA AREA AT INA EZHIMALA

Amount

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth for laying pipes in trenches/rectification of leakages and getting out in soft/loose soil complete all as specified and directed by Engr-In-Charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm complete all as specified and directed by Engr-In-Charge.

Removing excavated soil n exc 50M and depositing where directed at level n exc 1.5 M above the starting point complete all as specified and directed by Engr-In-Charge.

Material and labour for Demolition of cement concrete (unreinforced) of any description and in any position not otherwise specifically provided.

Material and labour for Cement concrete in sub floors,sub-bases,floors and pavings of cement concrete of following types:-

Type D2, 1:4:8 (40mm graded agreggate) of 100 mm thickness ( For Sub base)

Type B1 1:2:4 (20mm graded agreggate) of 50 mm thickness (for flooring)

Material and labour for Cutting existing CI pipe in position for insertions of CI specials /MJ collars of the following sizes Note : CI specials/MJ collars shall be measured separately

80mm bore

100 mm bore

150mm bore

200mm bore

250mm bore

Taking up the GI pipe line and connections from the trench/floor and cleaning removing the block, relaying/refixing the same in position of the following sizes Note: GI fittings such as bend, elbow etc shall be deem to included in the unit rate quoted for the item.

GI tubing 20mm bore

GI tubing 25 mm bore

GI tubing 32 mm bore

GI tubing 40 mm bore

GI tubing 50 mm bore

Supply and lay in replacement of old u/s GI tubing medium grade in trenches/wall/floor with all fittings such as bend,elbow,socket etc including taking out the corroded pipes all as directed of the following sizes

40mm bore

50mm bore

Supply and lay of CPVC pipes SDR-11 and plain CPVC SDR -11 with all fittings in trenches inplace of unserviceable GI tubes complete all as specified including taking out the unserviceable of the following sizes of pipes

20mm bore

25mm bore

32mm bore

40mm bore

50mm bore

Supply and lay of CPVC pipes CPVC Schedule 80 pipes & plain CPVC Schedule 80 fittings with all fittings in trenches in place of unserviceable GI tubes complete all as specified including taking out the unserviceable of the following sizes of pipes.

65mm bore

80mm bore

Supply and laying UPVC pipes Sch-40, ASTM of 50mm bore with all fittings and fixtures laid in trenches/wall/floor inplace of unserviceable GI tubes including taking out the unserviceable of the following sizes of pipes.

Supply and lay CI pipes spigot and socket ends centrifugally cast class K7 in any length laid in trenches including taking out the unserviceable CI pipes of following sizes:- Note:- fittings shall be measured separately

80mm bore

100mm bore

150mm bore

Supply and fix in replacement of old unserviceable CI specials such as bends (any type,radius,and angle) tapers any type (straight,bend, or double sockets etc) Tee pieces,single branch 'Y' junction,double branch (all sockets or socket and spigot) cross,collars caps and plugs etc upto 150mm bore

Material and labour in replacement of old unserviceable tyton joints with rubber gasket for CI/DI spigot and socket pipes and fitting of the following sizes:-

80mm bore

100 mm bore

150mm bore

Supply and fix sluice valve, non rising spindle flanged end of class PN 1.6 with stainless steel spindle with all accessories suitable for size 80mm bore, confirming to IS specification all as specified including taking out the unserviceable.

All as per item No.15 here-in-before but of size 100 mm bore

All as per item No.15 here-in-before but of size 150 mm bore

Supply and fix Gun metal gate valves with iron wheel head screwed both ends for iron pipe, confirming to IS specification all as specified including taking out the unserviceable of the following sizes

20mm bore

25mm bore

32mm bore

40mm bore

50mm bore

Taking out the sluice valve steel spindle and refacing ,regrinding and refixing of the following size after cleaning dust, greasing etc

80mm bore

100 mm bore

150 mm bore

200 mm bore

250 mm bore

Material and labour repair to valve chamber by means of taking down existing plaster (internal and external) completely and replaster in CM 1:4 15mm thick , 3 coat of white wash and welding of MS hinges, replacement of rusted/broken MS sheet of 3mm thick and including one coat of synthetic enamel painting on MS sheet after preparation of the surface of the following size

90x90x 90 cm (inside dimension)

45x45x 60 cm (inside diamension)

Material and labour for construction of valve chamber of internal size 900mmx900mm 900mm with , foundation PCC 1:4:8 type D2 (100mm thick) laterite stone masonary 200 mm thick in CM 1:4,PCC 1:2:4 TYPE B1 for coping (75 mm thick) , rendering in cm 1:4 ,15 mm thick on both internal and external surfaces (15cm below GL) including provision of MS sheet cover 3 mm thick and 40x6 mm flat iron frame, 50x6 mm FI hold fast embedded in coping with two coats of synthetic enamel paint over a coat of red oxide primer with necessary 3 coats white wash to external plastered surface, earth work and excavation ,handle of 12mm dia MS rod etc complete all as specified and directed by Engr-in-charge.

Supply and fix 20mm bore brass ferrule on the existing pipe line including taking down of old unserviceable ferrule. Note : Excavation for replacement of ferrules measured and paid separately

Supply and fix in repairs Ball valves high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe

40mm bore (min weight- 690 gram)

25mm bore ( min weight -455 gram)

20mm bore (min weight- 210 gram)

Material and labour for replacement of MJ Collar with Nut and Bolt including taking out old unserviceable collar of following sizes of CI pipe. Note : Earthwork & cutting of CI pipes measured seperately.

80 mm bore

100 mm bore

150mm bore

200mm bore

250mm bore

Supply and Fix ARV (Air Release Valve) flanged and drilled type 80mm dia including taking down the existing unserviceable valve.

Supply and fix CI specials Bends. Tapers. Tee pieces (single & double branch) upto 150mm bore any type and angle/radius for divertion of lines/interconection,etc complete all as specified and as directed.

Material and labour for arresting pipe line Leakage made of Aluminium Foil Tape/Waterproof Adhesive Tape Sealing Butyl Rubber Tape for Surface Crack, Pipe Rupture (5cm width of tape) complete all as specified and as directed.

Supply and fix PVC medium duty braided suction hose pipe medium grade green colour in any length laid in trenches including all fittings and connectors including taking out existing unserviceable pipes complete all as specified and as directed by Engr-In-Charge of following sizes: -

25mm dia

50mm dia

65mm dia

75mm dia

Material and labour for Cleaning of valve chambers of size up to 0.9x0.9x0.9m by removing of accumulated dirts/mud, vegetation up to 1 mtr around chamber, cleaning of pipes/valves externally and checking serviceablity of valves complete all as specified and as directed.

Material and labour for cleaning treated water tanks of 50,000 ltrs capacity by Dewatering the sump, removal of sand/muddy water/ sewage sludge by using sludge pumps, removal of left out sludge from the floor, transport & deposit of sludge at designated place/dump yard including one coat of white wash on inside surfaces after removing hard stains/scales from inside walls complete all as specified and as directed. Location : Golf pump house.

Material and labour for scraping the old paint by using wire brush and emery paper and preparation of the surface for painting the following pump set's /control panel with one coat of primer and two coat of synthetic enamel paint of suitable colour all as specified and directed at site of the following items :-

15 HP Pumpset

7.5 HP booster pumpset

1 HP booster pumpset

LT Panels of 2 x 1.5 x 0.15 m

Material and labour for servicing of 30 HP grundfoss vertical mounted pumpsets of CR45-4 B-F-A-E-HQQE type by authorised dealer of cheking serviceability, observing noise, electrical connections, tightning of nuts and bolts, removal of scaling on shaft, base by sand paper, replacement of worn out gland ropes of suitable gauge, Checking health of winding and pump, etc including greasing as required complete all as specified and as directed.

Material and labour for Repair of induction motor of 15 HP pump set Disconnection of electric cable from the terminal box of motor, Decoupling the motor from the pump, remove the motor from the foundation bed and taking out the motor and transporting to authorised work shop.Dimantling the motor and taking out the burnt copper winding /fibre strip/insulating materials. Clean the stator slots by CTC solution and rewind on stator slots with super enameled copper wire of existing gauge with insulating materials /fibre strip/varnishing and made terminal connection of fibre glass coated wire . Remetaling the shaft by lathe work and welding work for correct alignment for fixing of bearing, polishing of shaft.Assembling the motor and Replacing the burnt out gland rope,studs,nuts,bolts,washers rubber gasket,metal filling,turning/grinding and balancing the shaft etc complete all as directed by the engr-in-charge.

Material and labour for Repair of 7.5 HP self priming booster pump set (SP3A type-Kirloskar) Disconnection of electric cable from the terminal box of motor, Decoupling the motor from the pump, remove the motor from the foundation bed and taking out the motor and transporting to authorised work shop.Dimantling the motor and taking out the burnt copper winding /fibre strip/insulating materials. Clean the stator slots by CTC solution and rewind on stator slots with super enameled copper wire of existing gauge with insulating materials /fibre strip/varnishing and made terminal connection of fibre glass coated wire . Remetaling the shaft by lathe work and welding work for correct alignment for fixing of bearing, polishing of shaft. Assembling the motor and Replacing the burnt out gland rope,studs,nuts,bolts,washers rubber gasket,metal filling,turning/grinding and balancing the shaft etc and overhauling of SP3A type (Kirloskar make) suitable capacity pump complete all as directed by the engr-in-charge.

Material and labour for Repair of 1 HP self priming booster pump set (SP3A type-Kirloskar) Disconnection of electric cable from the terminal box of motor, Decoupling the motor from the pump, remove the motor from the foundation bed and taking out the motor and transporting to authorised work shop.Dimantling the motor and taking out the burnt copper winding /fibre strip/insulating materials. Clean the stator slots by CTC solution and rewind on stator slots with super enameled copper wire of existing gauge with insulating materials /fibre strip/varnishing and made terminal connection of fibre glass coated wire . Remetaling the shaft by lathe work and welding work for correct alignment for fixing of bearing, polishing of shaft.Assembling the motor and Replacing the burnt out gland rope,studs,nuts,bolts,washers rubber gasket,metal filling,turning/grinding and balancing the shaft etc and overhauling of SP3A type pump of suitable capacity complete all as directed by the engr-in-charge.

Material and labour for Disconnect the electrical connection, Lifting/reerection the submersible pump set from open well/bore well of capacity 7.5 HP capacity and dismantling the pump set and rewinding the submersible motor with copper sleeves wire of suitable gauge and proper insulation and replacement of PVC impeller for pump ,connecting and testing and lowering the same and testing and commissioning complete all as specified and directed by Engineer-in-Charge.

Material and labour for Repair/rewinding of electric motor 30 HP Make: Grundfos , Type: CR45-4 B-F-A-E-HQQE (a) Disconnecting the electrical cable from the terminal box of motor and decoupling the motor from the pump , remove the motor from foundation bed and lifting the motor using chain pulley block and transporting to authorised work shop. (b) Dismantling the motor and taking out the burnt copper winding /fibre strip/insulating materials. (c) Clean the stator slots by CTC solution and rewind on stator slots with duel coat super enamelled copper wire of existing gauge with insulating materials/fibre strip/varnishing and made terminal connection using existing gauge fibre glass coated wire. (d) Assembling the motor as directed by the engr-in-charge. (e) Transporting the motor to the site refixing on foundation channel with new bolts and nut washer and spring washer , coupling the pump and motor with correct alignment apply grease and connecting electrical connections in motor terminal box testing complete all as directed and specified by the Engr-in-charge

Supply and fixing in repair MCCB,,415V,160 A,4pole,36 KA adjustable thermal and magnetic setting complete all as specified and directed.

Supply and fixing in replacement MCB,415V,125A,TP,10 kA complete all as specified and directed.

Supply and fixing in replacement MCB,415V,40-63A,TP,10 kA complete all as specified and directed.

Supply and fixing in replacement MCB,415V,6-32 A, 2 pole,10 kA complete all as specified and directed.

Supply and fixing in replacement of old u/s flat submersible 3 core copper conductor PVC insulated and PVC sheathed cable of size 6 Sqmm including taking down old unserviceable Material complete all as specified and directed by Engineer-in-Charge.

Supply and fixing in replacement of 14 pin relay, 5A complete all as specified and directed.

Supply and fixing in replacement of 3 pole contactor, AC3 65A, 1 NO + 1 NC complete all as specified.

Supply and fixing in replacement of old u/s electronic type single phase preventer 415 V ,50 Hz including taking down old material complete all as specified and directed by Engineer-in-Charge.

Supply and fixing in replacement of old u/s LED indication lamp of panel mounting type including taking down old material complete all as specified and directed by Engineer-in-Charge.

Supply & fix in replacement of rigid PVC pipes of pressure rating 10 kg/cm2 laid in trenches including removal of unseriviceable pipes

25mm dia

50mm dia

63mm dia

90 mm dia

110 mm dia

Supply & fix in replacement of old unserviceable High density polyethylene pipes (HDPE) of pressure rating 6 kg/cm2 laid in trenches including jointing with exisitng HDPE pipe as required at site of following sizes:-

90 mm dia

110 mm dia

Supply and fixing in repairs UPVC ball valve 100mm suitable to fit on 110 mm UPVC pipes complete all as specified and as directed.

Supply and fixing in repairs UPVC ball valve 80mm suitable to fit on 90mm UPVC pipes complete all as specified and as directed.

Supply and fixing in repairs UPVC ball valve 50mm suitable to fit on PVC pipes complete all as specified and as directed.

Supply and fixing in repairs PVC ball valve 25mm suitable to fit on PVC pipes complete all as specified and directed.

Supply and fix in repair in replacement of Centric Butterfly valves wafer type PN1.6 as per BS-5155 &IS-13095 lever operated body grey cast iron disc -SGI Epoxy coated Disc seal-Nitrile/Epdm in Gear operated of size 80 mm bore confirming to IS specification all as specified and as directed.

Material and labour for Removing of filth/sludge and cleaning of aeration tank of size 25mx12.5mx4.5m depth, of apprx capacity 14 Laks ltrs of STP either manually or using infrastructure as the by pumping of sewage water, removing filth/sludge from bottom level, Dumping of filth/sludge which was removed from aeration tank by using their own vehicle/manpower at designated place/dump yard with proper approch and in consultation with Engr-in-charge, removing hard stains/scales from internal surfaces, painting of internal surfaces with one coat of white wash complete all as specified and as directed. Notes:- (i) The Filth/sludgewill be lifted from tank and loaded and unloaded in their own vehicle by using their own tools and mechineries and will be unloaded at the designated place properly. (ii) Rates for all equipment ,manpower,vehicle and safety equipments required to complete the job is deemed to be quoted in the rates. (iii) Any damage done to the structure of piping or any equipment contractor will be sole responsible to replace the same with identical. (iii) Work will not be permitted to commence without safety measures and equipment to the workers for where Engr-in-charge will give go ahead to comence the work. (iv) Contractor has to ensure proper safety/proper supervision during entire process and sole responsible for any damages.

Material and labour for cleaning the Raw sewage RCC sumps of following sizes by Dewatering the sump, removal of sand/muddy water/ sewage sludge by using sludge pumps, removal of left out sludge from the floor, transport & deposit of sludge at designated place/dump yard, Spraying of Non-toxic, bio-degradable, eco-friendly anti-bacterial agent to disinfect the tank from all harmful pathogens including one coat of white wash on inside surfaces after removing hard stains/scales from inside walls complete all as specified and as directed.

RCC sump of size 7.15M x 3.5M x 5.5M

RCC sump of size 7.15M x 7.15M x 6M

Material and labour for cleaning filter feed tanks/treated water tanks of 2 lakh ltrs capacity by Dewatering the sump, removal of sand/muddy water/ sewage sludge by using sludge pumps, removal of left out sludge from the floor, transport & deposit of sludge at designated place/dump yard including making necessary breakage of slab/roof of sump to movement manpower/tools/ventilation to caryyout job work and making good complete all as specified and as directed. Location : 2 MLD STP treated tanks - 2, Payyanur sump. Note : Contractor has to make sure availability necessary vetilation before commencement work, contractor has to carryout work safety procedures. contractor is solely responsible for any damage to government property adn working manpower.

Notes : i. The contractor has to rectify all minor complaints on same day/major complaints within 2 days, otherwise a penalty of Rs. 1000/Hr of water supply interrupted incase of Engr-In-Charge is not satisfied with delay reasons. ii. Contractor has to arrangement temporary availability of water supply by connection with hose pipe, collar,etc upto rectification of water supply lines without extra cost. iii. The contractor should keep spares in hand for attending emergency complaints.

SREEKRUPA ENTERPRISES (BID ID -3476325)