Maintenance of Equipments, Tanks and Vessels associated works for complete water treatment plant comprising of DM plant, PT plant, CW chemical treatment plant, Effluent Treatment Plant, Drinking Water Plant, Coal Settling Pit

Amount

“Round the clock operation, routine, preventive & Breakdown maintenance of Pre-treatment plant including ETP, Maintenance of Phosphate, Ammonia, Hydrazine & NaOH dosing system etc. & General maintenance of LP Piping system

Round the clock operation, routine & preventive maintenance of Pretreatment plant including ETP, Phosphate, ammonia, Hydrazine & NaOH dosing system etc.” (Maintenance of phosphate, ammonia, Hydrazine and NAOH dosing system)

Break down works of Pre treatment plant including effluent treatment plant and other pumps etc.

Maintenance/Breakdown maintenance of raw water pump

Maintenance of butterfly valve installed in raw water pump discharge line including repairing work

Coupling work including alignment of raw water pump

Bearing replacement of raw water pump

Maintenance/Breakdown maintenance of Ash water pump

Maintenance of butterfly valve installed in Ash water pump discharge line including repairing work

Coupling work including alignment of Ash water pump

Bearing replacement of Ash water pump

Maintenance /B/d maintenance of Travelling water Screens

Maintenance /B/d maintenance of Lube Water Pumps (Raw/Ash)

Maintenance /B/d maintenance of Travelling water Screen Wash Pump

Maintenance /B/d maintenance of Alum dosing pumps

Maintenance /B/d maintenance of Lime dosing pumps

Maintenance /B/d maintenance of Lime dosing solution/Alum dosing solution/Solution preparation tank’s agitator assembly (including Gear box) of PT plant.

Maintenance /B/d maintenance of Sludge Pumps (Clarifiers)

Maintenance /B/d maintenance of Service water pump

Maintenance /B/d maintenance of HVAC make pump

Maintenance /B/d maintenance of Waste service water pump

Maintenance /B/d maintenance of CMB pump

Bearing replacemt of - Lube Water Pumps (Raw/Ash), Screen wash Pump, lime Dosing Pump, Service Water Pump, HVAC make-up Pump, CMB Pump, Clarifier's rake-arm & Turbine

Pump bearing replacemt of Sludge Pumps (Clarifiers), Waste Service Water Pumps

Replacement of coupling, Alignment & balancing of the following pump with motor - Lube Water Pumps (Raw/Ash), Screen wash Pump, Alum dosing pump, lime Dosing Pump, Service Water Pump, HVAC make-up Pump, CMB Pump, sludge pumps(clarifiers), Waste Service water pumps, Clarifier's rake-arm & Turbine

Repairing /reconditioning of different gate valves of WTP

Attending leakage of different size pipelines, bends tees etc of welding joints of 25 mm to 80 mm sizes Pipe line work (for attending minor leakage)

Attending leakage of different size pipelines, bends tees etc of welding joints of 100 mm to 200 mm sizes Pipe line work (for attending minor leakage)

Maintenance of NRV of Raw Water Pump, size- 500NB, As per scope

Maintenance of NRV of Ash Water Pump, Size-350 NB, As per scope

Maintenance of NRV of Service water pump, size 300 NB,Sludge pump (clarifier) (size-150NB), HVAC make pump (size 150NB),CMB pump (size 250NB), Waste service water pump As per scope

Overhauling /maintenance of Glove /butterfly valve (size 150mm--300mm) installed at PT plant

Complete cleaning and Removal of chocking and flushing of pipelines of chemical tank/lime/alum, removal of foreign material, back washing of tank etc 01 system per job

Manual cleaning of common sump of sludge pumps and its disposal to suitable remote place.

Cleaning & removal of mud/sludge from Waste Service Water Pit & common sump and its disposal to remote place (01 job per pit/sump)

Complete cleaning /Desludging of clarifiers, maintenance of Rake-Arm (wiper) mechanism, removal of jamming, trial run of Rake-arm (wiper) (sludge pit cleaning will be done during this work, no extra job is given for the job of cleaning of sludge pit during cleaning of clarifier)

Maintenance of central bearing of clarifier which includes dismantling bearing housing, changing bearing /repairing bearing housing and assembling etc / maintenance of turbine assembly of clarifier,

Maintenance /B/D maintenance of central/Rake-arm Gear Box of clarifier

Maintenance /B/D maintenance of Central/Turbine gear box of clarifier

Maintenance of flash mixer agitator including gear box, mixing paddles and associated system of Tube settler

Cleaning of tube settler tank

Servicing of hoist (2 to 7 Ton)

Servicing of EOT crane

Cleaning & removal of mud/sludge from CMB Pits (all 03 pits) and its disposal to remote place (01 job/all pits)

Break down works of Phosphate, ammonia, Hydrazine & NaOH dosing system

B/d maintenance/maintenance of phosphate dosing pump (Note : Teflon washer/plunger ring & locking pin for crank/eccentric will be provided by the contractor on their own cost)

Complete Cleaning & flushing of pipe lines, & removal of foreign-material from measuring /solution preparation tank, their strainer, backwashing, and removing chocking in phosphate dosing system.

B/d maintenance /maintenance of ammonia/ Hydrazine dosing pump (one job per pump)(Note : Teflon washer/plunger ring & locking pin for crank/eccentric will be provided by the contractor on their own cost)

Complete Cleaning & flushing of pipe lines & removal of foreign-material from measuring /solution preparation tank, their strainer, backwashing, and removing chocking in ammonia dosing system.

Complete Cleaning & flushing of pipe lines, & removal of foreign-material from measuring /solution preparation tank, their strainer, backwashing, removing chocking in Hydrazine dosing system.

Maintenance/ B/D Maintenance of Phosphate/ ammonia/ Hydrazine/ NaOH Solution preparation/Measuring tank’s agitator assembly

General maintenance and Preventive Checking of L P Piping

General maintenance and Preventive Checking of L P Piping as per scope of work. This includes attending valves, small leakages in pipes, choking and blockage removal in all pipes, checking, inspection etc.

“Round the clock operation, Routine, preventive & Breakdown maintenance of DM plant & Gravity filtration plant, CW Treatment Plant & Coal Slurry settling Plant

Round the clock operation & Routine preventive maintenance of DM plant & Gravity filtration plant + CW Treatment Plant + Coal Slurry Settling Plant

Breakdown maintenance of DM plant & gravity filtration plant

Maintenance of vessel ACF/ WAC/ SAC/ WBA/ SBA/ MB etc of DM plant, which includes repairing /welding/rubber patching/coating etc (One job per vessel)

Maintenance of Strainer/ Nozzle assembly of Mixbed /Anion bed /Cation bed of DM plant

Overhauling/ B/D maintenance of DM supply pumps i.e. DM fill pump/ DM make up pump ( 01 job per pump)

Overhauling/ B/D maintenance of Filter Water Transfer Pump/ Potable Water pump/ Gravity Filter Backwash pump/ Effluent recirculation cum disposal pump/degassed water pump/ DM regeneration pump/ ACF (pit) rinse water transfer Pumps etc ( 01 job per pump, as per scope of work)

Overhauling/ B/D maintenance of - Acid (HCl) unloading pump /alkali unloading pump /alkali transfer pump/ Brine solution transfer pumps, Air scour blower for gravity filter/ mix bed blower/degasser blower etc( 01 job per pump/blower)

Replacement of coupling, Alignment & balancing of above pumps/ blowers (2.03, 2.04 & 2.05) with motor ( 01 job per pump)

Replacement of Bearing of - Effluent recirculation cum disposal pump/degassed water pump/ / DM regeneration pump/ ACF (pit) rinse water transfer Pumps, Acid (HCl) unloading pump /alkali unloading pump /alkali transfer pump/ Brine solution transfer pumps, Air scour blower for gravity filter/ mix bed blower/degasser blower etc

Replacement of Bearing of - Filter water pump, Potable water pump, Filter Backwash water pump (vertical pumps)

Changing of broken/rusted foundation bolt of pumps (grouted)/ rubber packing /gasket of flanges 15 mm to 300 mm/attending rupture leakage in pipe line by patch welding /fabrication, matching & repairing of flanges 15mm to 300mm / cutting, welding of MS angle/MS channel/pipe of different sizes

Replacement of damaged pipes of various sizes with old/new pipes of size 25mm to 300mm, different valves 25 mm to 300 mm

Cleaning /removal of mud/sludge/ effluent from Neutralizing Pit (02Nos) and its disposal (one job per 02 nos pits)

Cleaning /removal of mud/sludge/ effluent from ACF Rinse Water Pit (02Nos) and its disposal (one job per 02 nos pits)

Cleaning /removal of mud/sludge from Gravity Filter Backwash Water Pit and its disposal (one job/ALL PITS with common sump)

Attending leakages and replacement of worn out /damaged gaskets/nut-bolts of flanges of different pipelines of DM Plant

Maintenance & attending B/D of NRV's of all pumps & blowers associated with DM Plant & Gravity Filtration Plant

Attending B/d rubber lining of different size Tank, bend, pipes, Tee & Cross of DM plant

Maintenance & attending B/D of Lime dosing solution in N-Pit/Alkali measuring tanks/brine Solution preparation tank’s agitator assembly (including Gear box) of DM plant.

Overhauling/Servicing of different valves (diaphragm valves & butterfly valves including gear box) of DM Chain of DM Plant. (01 job/DM chain)

Full Housekeeping, Daily Cleaning of WTP Area (DM Plant area/floor, DM Control room, Chemical LAB building, Gravity Filtration Plant, Coal Settling Plant/ CW treatment Plant/ Chlorination Plant/ PT Plant area/floor, PT Control room, Chemical House building, Waste Service Water Pump/CMB Pump/N-pit Pump area/floor, Dosing System Skids, bathrooms & toilets etc. (01 job/day) (all Sunday’s excluded)

Overhauling / Repairing of Gravity Filter Bed - Removal of flter media by collection, lifting from bed of filter, proper stacking at clean surface, cleaning by water, seiveing with different size of seives, separation of filter media in different size, refilling as per instruction of Engineer of contract in filter in different thickness after repairing of filter's internal, replacement of damaged parts & necesssary repair if any complete in all respect.

Black Bitumen Acid/ Alkali resistant paint coating two coats after cleaning & preparation of surface on the walls of Gravity filter's structure, only with item no Part-B-2.20.

Breakdown Maintenance CW Treatment Plant

Maintenance /Servicing & revisioning of stroke adjustment of Acid dosing pump/scale inhibitor/corrosion inhibitor /bio dispersant dosing pump (1 job per system)

Complete cleaning & removal of foreign-material from scale inhibitor /corrosion inhibitor/bio dispersant tanks, their strainer, backwashing of tank & Cleaning & flushing of pipe lines .(1 job per system)

Maintenance/Servicing of agitator of scale inhibitor tank/corrosion tank/bio dispersant tank of dosing system

B/D Maintenance/Servicing of acid unloading pumps along with suction and discharge valve

Pipe line work (for attending leakage)

Painting of Acid Storage Tank, Acid/Scale/ Corrosion inhibitor/ bio-dispersant measuring Tanks (Note : Paint and primer is in the contractor scope)

Breakdown Maintenance Coal Slurry Settling Plant

Maintenance /B/d maintenance of Coal decanted water pump

Coal decanted water pump Bearing Replacement

Replacement of coupling & Alignment of the pump with motor

Maintenance of NRV of Pumps

Overhauling /maintenance of Glove /butterfly valves

Attending leakage of different size pipelines, bends tees etc of welding joints of 25 mm to 80 mm pipeline work (for attending minor leakage)

Attending leakage of different size pipelines, bends tees etc of welding joints of 100 mm to 200 mm pipeline work (for attending minor leakage)

Complete cleaning and Removal of chocking and flushing of pipelines of PAC chemical tank removal of foreign material, back washing of tank etc 01 system per job

Manual cleaning of Pump Pits & Common Sump, its disposal to suitable remote place. (one job/ALL PITS with common sump)

Maintenance/ B/D Maintenance of PAC Solution preparation tank’s agitator assembly (including Gear box)

Misc. Works

Work of Sweeping, cleaning & wiping with wet cloth in office complex and ‘C' Water treatment Plant of O.G. & Ch.D., CTPS, HTPS Kasimpur

Office complex of E.E., O.G.& Ch.D., CTPD HTPS Kasimpur: Complete sweeping with broom and cleaning of office complex building. It includes the walls, doors and windows upto approach. Web Cab are also to be cleaned upto ceiling. There are six rooms and one Urinal in the office complex. Surrounding areas are also included in the work.

Water treatment Plant: Complete weeping with broom and cleaning of 'C' Water treatment Plants, includes the walls, doors and windows upto approach and removal of Web Cab.

Operation of submersible sewage pumps per shift (08 hrs shift) installed in Colony Nala near WTP DTPS plant boundary. as per scope of work as described therein

Cleaning of the Jungle including the uprooting of grass, wild vegetation bushes, small trees etc. area up to 3 meters on both side of the eccess way of WTP area.

Round the collection of sample-Make up water, Boiler water, Condensate water,DM Plant chain sampling, CW & Chlarified water, CMB ,collection & preparation of coal & oil sample Monitering of level and dosing of hydrazine &Phosphate Solution at site all running unit dtps,ctps.

Chlorination Plant

Round the clock operation of Chlorination Plant

Daily Routine & preventive maintenance of Chlorination Plant

B/D Maintenance of Chlorination plant

Maintenance /servicing of CW chlorinator

Maintenance/servicing of CW evaporator

Replacement /servicing of Remote Vacuum regulator

Replacement /servicing of pressure relief valve

Replacement /servicing of Flow meter

Replacement /servicing of Flow control valve

Replacement /servicing of Differential pressure regulator

Maintenance/servicing of PT chlorinator

Maintenance /Servicing/cleaning of Cl2 absorption tower with suction duct network

Maintenance /Servicing of CW ejector assembly with associated NRVs/valves

Maintenance /Servicing of PT ejector assembly with associated NRVs/valves

Maintenance /Servicing of complete tonner manifold of CW with associated valves & expansion cylinders

Maintenance /servicing of complete tonner manifold of PT with associated valves

Maintenance/servicing of CW chlorine dispenser lines of one chlorinator & evaporator with associated valves & filters

Maintenance/servicing of PT chlorine dispenser lines of one chlorinator with associated valves & filters

B/D Maintenance of CW booster pump

B/D Maintenance of PT booster pump

Maintenance of caustic recirculation pump

Maintenance /servicing of Air blower

Alignment of different pumps with motor (01 job / pump or blower)

Bearing replacement of different pumps & blowers (01 job / pump or blower)

Maintenance /Servicing of valves of following sizes - 200mm

Maintenance /Servicing of valves of following sizes - 150 mm

Maintenance /Servicing of valves of following sizes - 80mm

Maintenance /Servicing of valves of following sizes - 50mm

Maintenance/servicing of NRV sizes-100 mm

Maintenance/servicing of NRV sizes-80 mm

Maintenance/servicing of NRV sizes-50 mm

Repair of MS pipeline work to arrest leakage

Repair of HDPE pipeline for CW to arrest leakage of chlorine solution

Repair of HDPE pipeline for PT to arrest leakage of chlorine solution

Maintenance /servicing of CW Forebay chlorine solution diffuser with associated valves

Maintenance /servicing of PT partial flume chlorine solution diffuser with associated valves

Replacement of CW chlorinator PVC vacuum pipeline with associated bends, tees, unions, flanges etc

Replacement of PT chlorinator PVC vacuum pipeline with associated bends, tees, unions, flanges etc

Fabrication of lead gaskets ID 13mm, OD :20MM Thickness : 3mm (as per sample)

Refilling with maintenance /serving of oxygen cylinder and safety set

maintenance of emergency shower with associated pipe line & valve connected to source

Maintenance of CW line strainers

Attending B/d by re-rubber lining of different pipes, bend, pipes, Tee & Cross

M/s Krishna Engineering Works (BID ID -4788822)

SHAKSHI ENGINEERING CO. (BID ID -4788831)