Routine Preventive and Breakdown maintenance of Counter flow induced draft Cooling Towers 24 Nos. CW Pumps, ACW Pumps, Pumps installed at Clarified water pump house, Raw Water pump house etc. and it associated equipment /system in 2x210 MW, PT

Amount

(A)Work under Priority list ‘A’ 1.Routine & preventive maintenance of Counter flow induced draft Cooling Towers (24 Nos.), CW Pumps, ACW Pumps, Pumps installed at Clarified water pump house, Raw Water pump house etc. and it’s associated /system in 2x210 MW, PTPP, Parichha along with Raw Water Pumps, Travel water screens and associated equipment of 2x110 MW. (and other associated work as per scope of work)

2.Equipment and floor conditioning as well as removal of spider web, cutting of shrubs of above mentioned plants/system (as per scope of work).

(B)Work under Priority list ‘B’ Breakdown Maintenance of various pumps i.e CW, ACW. Raw water, Service water, HVAC, Potable water pumps, Cooling Towers etc. (a) CW Pump 1.Maintenance/Breakdown maintenance of CW Pump

2.Maintenance of Butterfly valve (1600mm) including replacing work

3.Coupling work of motor including minor modification in cooling pipe lines

4.Replacement of worn out damaged gland sleeve/coupling work of pump.

5.Maintenance/Replacement of damaged/worn out lube water pipe lines of various sizes of CW Pump

6.Maintenance of butterfly valves (interconnect 2200mm) including repairing work.

7.Pump Bearing replacement work

(b)ACW Pump 1.Maintenance/Breakdown maintenance of ACW Pumps

2.Maintenance of Butterfly valves (700mm)

3.Coupling work including alignment work

4.ACW gland Sleeve/Coupling work

5.Pump bearing replacement work

6.Maintenance of Air release valve of ACW&CW

7.Maintenance of Gate valve of Air release system

8.Repairing & reconditioning of gate valves with replacement of seat rings, spindle nut etc.

9.Overhauling & Maintenance of EOT Crane of ACW/CW Pump House

10.Cleaning of CW/ACW sump screen

(c) CW/ACW dosing system 1.Servicing & revisioning of gear box of anti scalent /corrosion inhibitor Biocide dosing pump

2.Maintenance/Servicing of dosing pump along with suction & discharge NRV of pump body.

3.Servicing of relief valves of dosing pumps

4.Cleaning & flushing of pipe lines of anti scalant/corrosion inhibitor/biocide dosing system to remove chocking in system.

(d)Raw Water Pump House 1.Maintenance/Breakdown maintenance of Raw Water Pump

2.Maintenance of Butterfly valve including repairing work

3.Coupling work including alignment

4.Gland Sleeve of stuffing box & coupling work

5.Pump bearing replacement work

6.Overhauling & Maintenance of EOT Crane

7.Maintenance of Air release valve including repairing work

8.Maintenance of Gate Valve

9.Repairing & reconditioning of Gate Valve replacement of seating spinds nuts etc.

(e) Ash Water Pump 1.Maintenance/B/D maintenance of Ash Water Pump

2.Maintenance of Butterfly valves

3.Coupling work including alignment

4.Gland Sleeve

5.Pump Bearing replacement work

(f) TWS pumps 1.Maintenance/B/D maintenance of TWS pump

2.Gate valve maintenance work

3.Pump Bearing replacement work

(g) Clarified Water Pump House 1.Maintenance/B/D maintenance of (i) CW Make UP Pump

(ii) CHP/HVAC Pump

(iii)AHP pump

(iv)DMP pump

(v)PWP pump

(vi)SWP pump

2.Gate/Globe valve maintenance work (i)CW Make up pump

(ii) CHP/AHP

(iii) HVAC

(iv) DMP/PWP/SWP

3.Repairing & Reconditioning of different size gate valve with replacement of valve seat/gate seat brass rings, spindle nut etc . (i)CW Make up pump

(ii)CHP/AHP

(iii) HVAC

4.Pump Bearing replacement (i)CW Make up pump

(ii)CHP/AHP

(iii) HVAC

(iv) DMP/PWP/SWP

5.Cleaning & removal of Mud from the clarified water tank & its disposal (As per scope of work)

6.Overhauling of maintenance of Hoist of clarified water pump house

7.Maintenance of NRV (Fabrication & filling of flap seat of different size NRVs) (i)CW Make up pump 500 mm

(ii) CHP/AHP 200 mm

(iii)HVAC 125mm

(iv) DM/PWP/SWP 100 mm

(h).B/D Maintenance of Cooling towers 1.Complete checking and rectification of faults in all 24 cells of cooling tower (gearbox, drive shaft, fan blade etc.

2.Maintenance of Axial flow fan

3.Maintenance of Gear box.

4.Maintenance of Drive shaft (double span /Single span).

5.Stack door Replacement of damaged part or fabrication/repair work

6.Hatch door Replacement of damage part or fabrication/repair work

7.Inspection ladder Replacement of damage part or fabrication/repair work

8.Slide gate or screen Replacement of damage part or fabrication/repair work

9.Maintenance of butterfly valve

10.Replacement of damaged PVC distribution pipe of one cell.

11.Overhauling of fan/gearbox & drive shaft of one cooling tower

M/S NISHA ENTERPRISES

M/S AWAM ENGINEERING CO