Tender For Nctps - Ii - M Ii Circle - Tm - S.Dn. Ii - Unit Ii - Aoh 2026-27 - Overhauling Of Tdbfps Auxiliary Control Valve, Dismantling, Cleaning, Inspection Of Servo Motor, Servo Cylinder And Replacing Of Seal Kit In Tdbfps Mcv & Acv Servo Cylinder
Tender Value
Ref. Documents
Estimated cost
Bid Submission
28 Sep 2026
8 days left
EMD
8800
Bank guarantee accepted
Document Fee
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Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Thiruvallur → Tamil Nadu
EMD Exemption
Available
Quantity
Not Available
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Address
Project Description
Tender for Nctps - Ii - M Ii Circle - Tm - S.Dn. Ii - Unit Ii - Aoh 2026-27 - Overhauling Of Tdbfps Auxiliary Control Valve, Dismantling, Cleaning, Inspection Of Servo Motor, Servo Cylinder And Replacing Of Seal Kit In Tdbfps Mcv & Acv Servo Cylinders, Overhauling Cpu Air Blowers, Rectification Of Defect In Cpu Blower 2B Discharge Line, Silencer, Replacing Of Tdbfp Exhaust Butterfly Valve Seat, Overhauling Of Tdbfps Ovef
BOQ
| Sl. No. | Item Description |
| 1 | Dismantling of TDBFP ACV Servomotor in governing system by using lifting rope after removing the drain line, fixing plate, connecting lever with threaded sleeve and pin from bell crank lever, intermediate piece. |
| 2 | Dismantling the TDBFP ACV Hydraulic control cylinder in governing system by removing the circlips, shaft, I bolt, spacers, after securing the total assembly with lifting rope, removing the feed back cam, bottom mounting pin with circlip, main bar fastened over connecting rod after removing the internal threaded pin & tapper pin. |
| 3 | Replacing of Seal kit in TDBFP ACV Hydraulic servo cylinder by dismantling of hydraulic servo cylinder by removing the barrrel mounting bolts-4Nos, piston rod, seal kit, piston & it ring, cleaning the internals, replacement of seal kit & piston ring and reassembling. |
| 4 | Dismantling of TDBFP ACV by removal of spring holding bolts, spring top plate, spring, disconnecting and removal of coupling between actuator and valve spindle, removal of actuator spindle, removal of valve bonnet bolts, lifting and removal of valve bonnet, removal of valve spindle with plug. |
| 5 | Complete cleaning of TDBFP ACV internals includes spring, actuator spindle, valve spindle, valve internal and external body, valve seating area in both valve body and in spindle. Lapping of valve seating areas, blue matching th valve seating araes with each other. Continuing the lapping and blue matching process till the achiving of satisfactory blue matching level. |
| 6 | Assembling of TDBFP ACV internals such as fixing of valve spindle, bonnet, bonnet bolts, fixing coupling between valve and actuator spindle, fixing of spring, spring top plate, spring holding bolts in sequence. |
| 7 | In TDBFP ACV testing the free movement of piston inside the Hydraulic Control Cylinder, cleaning of external parts, assembling the Hydraulic Control Cylinder by fastening the main bar to connecting rod, fixing of protection roller bearing nart guide, inserting tapper pin, bell crank lever, joining lever, lifting the total assembly with lifting rope, positioning, inserting the shaft, I bolt, spacers and arresting it with circlips, inserting the bottom mounting pin and assembling the intermediate piece with new gasket. |
| 8 | Dismantling and cleaning of TDBFP ACV servo motor internals such as pilot, spring, bearing, re-assembling the internals, lifting the Servomotor with lifting rope, positioning and assembling with intermediate piece with new gasket, assembling the drain lines, fixing plate, connecting the lever with threaded sleeve. |
| 9 | Dismantling of TDBFP MCV Servomotor in governing system by using lifting rope after removing the drain line, fixing plate, connecting lever with threaded sleeve and pin from bell crank lever, intermediate piece.. |
| 10 | Dismantling the TDBFP MCV Hydraulic control cylinder in governing system by removing the circlips, shaft, I bolt, spacers, after securing the total assembly with lifting rope, removing the feed back cam, bottom mounting pin with circlip, main bar fastened over connecting rod after removing the internal threaded pin & tapper pin. |
| 11 | Replacing of Seal kit in TDBFP MCV Hydraulic servo cylinder by dismantling of hydraulic servo cylinder by removing the barrrel mounting bolts-4Nos, piston rod, seal kit, piston & it ring, cleaning the internals, replacement of seal kit & piston ring and reassembling. |
| 12 | In TDBFP MCV testing the free movement of piston inside the Hydraulic Control Cylinder, cleaning of external parts, assembling the Hydraulic Control Cylinder by fastening the main bar to connecting rod, fixing of protection roller bearing nart guide, inserting tapper pin, bell crank lever, joining lever, lifting the total assembly with lifting rope, positioning, inserting the shaft, I bolt, spacers and arresting it with circlips, inserting the bottom mounting pin and assembling the intermediate piece with new gasket. |
| 13 | Dismantling and cleaning of TDBFP MCV servo motor internals such as pilot, spring, bearing, re-assembling the internals, lifting the Servomotor with lifting rope, positioning and assembling with intermediate piece with new gasket, assembling the drain lines, fixing plate, connecting the lever with threaded sleeve. |
| 14 | Removal of Existing Damged Seal in TDBFP Exhaust B/F valve includes removal of man hole door dummy in TDBFP Exhaust line near butterfly valve, removal of seal holding strips bolts, removal of locking washers, removal of holding srtips, removal of damaged seal from the seating area. |
| 15 | Replacing New seal & Inspection of Sealing area of the valve includes cleaning and inspection of seal seating area, placing the new seal, placing the seal holding strips, placing the bolts along with locking washers, tightening the holding strip bolts, closing the valve manualy to the full close position, inspection of sealing area for tighteness, box up the exhaust line man hole door with new gasket. |
| 16 | Charges for clearing of released wool from the work spot : This work involves complete collection of released waste wool ,debris and other unwanted insulation materials from the work spot ,gathered in one place and clear, transport for away from the site of unit I&II including the cost of consumables and T&P hire charges. |
| 17 | Dismantling of CPU Air blower Discharge line and valves, includes, dismasting the discharge line along with Safety valve, Non Return valve and Isolation butterfly valve by removing the hose clamp -2Nos., hose connecting the silencer & discharge line, unscrewing the flange studs- 8Nos, lifting, moving the discharge line, cleaning the inner side of the line with wire brush, emery sheet, compressed air, thoroughly wiping the debris with clean cloth & surface cleanser including the charges of T&P, consumables etc., |
| 18 | Dismantling of CPU Air blower Silencer, Inspection & replacing of internals, includes, removing the discharge silencer end plate, cutting the discharge pipe protruding form the silencer shell, grinding the edges, removing the corroded perforated inner tube, acoustic sponge, cleaning the internals with wire brush, emery sheet, compressed air, thoroughly wiping the debris with clean cloth & surface cleanser, inserting new acoustic sponge, fabricating, inserting and positioning the new perforated inner tube, welding the new silencer neck after edge preparation and fit up work including the charges of T&P, consumables etc., |
| 19 | Re-assembling of Discharge line, silencer, valve and NRV, includes, re-assembling the discharge line along with Safety valve, Non Return valve and Isolation butterfly valve by lifting, moving & positioning the line with the flange, inserting the new rubber gasket, inserting the studs - 8Nos torquing the nuts, inserting the hose with clamps- 2Nos. and torquing the hose clamps on either side including the charges of T&P, consumables etc., |
| 20 | Overhauling of Oil Vapour Extraction Fan (OVEF) includes isolation of the Fan by removing the Inlet butterfly valve and inlet spool piece, dismantling the fan end cover, impeller shaft center bolt, radial bolts, axial bolt, removing the shaft key and impeller, cleaning the Fan internals, impeller, casing and end cover ect., checking the conditions of impeller bush, shaft key, shaft key way and casing cover, impeller Bush clearance, repair/ replacement of damaged components, replacing of Fan end cover Gaskets and Reassembling of all the parts in the correct sequence including the charges for T&P, consumables etc., |
| 21 | Dynamic Balancing of OVEF Impeller, includes, dynamic balancing of the Fan impeller at rated speed by loading the fan impeller in special fixtures, taking measurements, Rough balancing adding balancing weight and final balancing with grinding, trueness checking including the charges for T&P, consumables etc., Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Sep 14, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedSep 28, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 8 daysSep 29, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 9 daysTender Documents
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