Overhauling & Emergency works of Turbine auxillaries of condensate system,HPBP/LPBP system,Turbine drain system & Seal steam header system

Overhauling & Emergency works of Turbine auxillaries of condensate system,HPBP/LPBP system,Turbine drain system & Seal steam header system

Replacement of gland packing of CEP

Cleaning of suction strainers of CEP.

Overhauling of discharge valves of CEP.

Overhauling of suction valve of CEP.

Inspection of Bearing [Thrust & Journal].

Overhauling of NRV's of CEP.

Overhauling of CEP.

Inspection, Rectification of CEP canister:

Temporary fixing & removal of suction strainer mesh of CEP in unit-4

Cleaning of EOT crane components like LT,CT,Operator cabin, Pendents,Carriages, Double girder rails etc. & greasing of bearings, wheels etc.

EOT crane Brake shoe/thrust or springs adjustment and Gear box oil level inspection & top-up

Overhauling of seal steam supply and leak off steam control valves.

Overhauling of actuators of seal steam supply & leak off contrl valves.

Replacement oil & cleaing of filters of actuators of seal steam spply & leak off contrl valves.

Servicing of supply /leak off steam bypass valve.

Checking of N2 gas pressure and filling if required

Overhauling of HPBP valves without seat replacement.

Overhauling of HPBP spray contrl valves with seat replacement.

Overhauling of HPBP / U4 LPBP spray control valves without seat replacement.

Overhauling of actuators of in BP -1 & BP -2 valves of HPBP sys.

Overhauling of actuators of BD, BPE-1 & BPE -2 valves of HPBP sys.

Overhauling of HPBP sys oil unit OV - 32B.

Overhauling of HP bypass valves without seat replacement in Unit -4

OH of LPBP system oil unit in UNIT-4

Inspection of tubes of LPH.

Overhailing of gauge galss of HP/LP Heaters.

Inspection of tubes of LP heaters and replaceing gasket between shell & tube plate

Providing assistance for performing turbine & LPBP governing charecterstics & feed back checking of servomotors,cleaning of damping device etc..

Servicing of servo motor & changing of gland packing on both sides OF CRH NRV

Overhauling of CRH NRV's

Overhauling of turbine extrctn NRV's.

Cleaning of rotary filter of governing system , LPBP system

Servicing of Test valve/Pilot valves.

Repair /service of MO actuators of size up to 300NB

Checking of the manual operation, attending minor repairs (repairs without dismantling actuator) and replacement of lubrication of MO actuators.

Replacement of flange /bonnet gasket (including isolations) upto 100 mm

(At MS,HRH,CRH,turbine pipings, LP heaters ,condensate system,TG oil system, HP/LP bypass system etc., and related works)

Replacement of flange /bonnet gasket above 100 mm to 200 mm(including isolations)

(At, MS,HRH,CRH,turbine pipings, LP heaters ,condensate system,TG oil system, HP/LP bypass system etc., and related ...

Replacement of flange /bonnet gasket (including isolations) above 200 mm to 450 mm

(At, MS,HRH,CRH,turbine pipings, LP heaters ,condensate system,TG oil system, HP/LP bypass system etc., and related ...

Providing assistance for attending of unforeseen emergency works

Replacement of gland packing of Gate/Globe Valves of size 50 to 450 NB

Inspection/servicing of valves & NRV's: HO/MO/valve size 50 mm to 250 mm

Servicing of motorized/ hand operated valves & NRV's of sizes 250 mm & above

Replacement of gland packing of valves up to 50 mm

Servicing of MO/HO high pressure valves of Valves of size up to 50 mm

Servicing of MO/HO high pressure valves of Valves of size 65 NB to 100 NB".

Servicing of valves in oil lines of size 1".

Servicing of valves in oil lines of size 2"to 6"

Replacement of valves of size up to 100 mm

Replacement of valves of size above 100 to 250 mm

Replacement of bends/reducers/elbow of water & steam lines per joint, including welder below 100 mm

Attending of small welding cracks in pipes and other welding works

Replacement of LP pipe lines size: upto 150mm

Replacement of LP pipe lines size: above 150 mm

Replacement of HP pipe lines size: upto 150mm

Replacement of HP pipe lines size: 200 to 300 mm

Replacement of bends/reducers/elbow of water & steam lines per joint, including welder above 100 mm

Overhauling of GSC/MOT oil vapour extraction fans

Consumables ( As per annexure-A)