T 04 BMD I BTPS OMC II 2020 21

Amount

Mobilization of team and T&P and attending tube leakages in various zone of boiler pressure parts. Attending the leakage up to 1st Ten weld joints (irrespective of number weld joints in one frequency) as per procedure mentioned in scope of work.

Attending tube leakages in various zone of boiler pressure parts if exceeds beyond 10 nos. of weld joint of Job no. 1 in addition to job no.1 including joint of carbon steel / T-11/ T-22 / T-91 / TPH 347 including all diameter tubes.

Attending leakage of hand hole plate of different pressure part header by removing hand hole plate with hand hole cutting equipment, re-welding of the same as per procedure.

Removal of damaged clamps/binders FLEXIBLE CONNECTORS etc. and replacement / refitting of the same with new/repaired one in different zones of pressure parts. The rate should be quoted as per no. basis as under-

Fabrication of hot bends of Carbon Steel various degree and radius of curvature from straight pressure parts tubes by filling sand and heating by gas to required temperature of following materials.

Fabrication of hot bends of Alloy steel various degree and radius of curvature from straight pressure parts tubes by filling sand and heating by gas to required temperature of following materials.

Stitch welding of fins of water Wall / steam cool wall for securing respective position of tubes.

Build-up of eroded portion of tubes caused by ash / steam erosion using suitable welding electrode matching with parent metal composition. Depth of erosion up to 2.5mm, length of erosion up to 250 mm.

Rectification / replacement of ash protector found damaged / eroded / dislocated in different pressure part zone of boiler. The rate should be quoted as per no. basis.

Lifting and taking out the complete Hanger of LTSH coil after cutting clamps, supports, clits, and stoppers and releasing from subsequent header and coil and their restoration after placement of coil.

Lifting & Taking out the complete Hanger for economizer (lower/upper bank) after removing clamp pin & releasing from subsequent header and their restoration. (One job = One Bank)

Cleaning of pent house & disposal of ash.

Cleaning of Economizer hopper & air pre- heater hoppers.

Cleaning & Disposal of fly ash and foreign materials from cat house (L&R)

Cleaning & Disposal of fly ash and foreign material from dog house (L&R)

Thickness survey of Tubes for Different size up to 50 Points.

Erection of Scaffolding (Plank Size 2.5x0.3 Mtr)

Replacement of shrouds of boiler tube of different size such as economizer, LTSH, SCW, screen tube and other tubes of boiler.

Repairing and reconditioning of cassette baffles of economizer and LTSH tubes of boilers.

Casting of refractory in gooseneck/dog house/cat house 01Job = up to 01 Metric Ton (MT)

Inspection and greasing of all buck stay pins of complete boiler

Cutting & Dismantling of horizontal buckstay link

Resetting of horizontal buckstay link with buckstay

Resetting of Vertical buckstay link with buckstay

Welding of partition plate of burner compartment to wind box support trusses

Round the clock of routine Maintenance work of boiler/ Oil Gun/Coal Burner/Checking oil level in APH Gear Box/Guide Bearing/Support bearings and other routine nature work to meet out day to day requirement of boiler of Unit no. 3 of 2x210 MW, Parichha.

Round the clock of routine Maintenance work of boiler/ Oil Gun/Coal Burner/ Checking oil level in APH Gear Box/Guide Bearing/Support bearings and other routine nature work to meet out day to day requirement of boiler of unit no. 4 of 2x210 MW, Parichha

M/S VIJAY ENGINEERING WORKS