Sample Tendering for Tube Bundle Proposal

For HE-I

01. Opening & dismantling of cooling water inlet& outlet flanges from 4 inch cooling water manifold line from tube bundle to enable for lifting 4 nos. (One manifold in each tube bundle & two flanges in one manifold)

02. Dismantling of inlet & outlet 6 inch cooling water line of each interstage coolers

03. Opening & dismantling of cooling water tube bundle top head from each tube sheet

04. Opening, lifting & then lowering of four water tube bundles. Each tube bundle weighs 2 MT approx. and laying it properly.

05. Opening & dismantling of cooling water tube bundle bottom head from each tube sheet.

06. Opening, lifting & then lowering of the separator (weighs 0.5 MT approx.) and laying it properly.

07. Dismantling of all cooler drain & drain by-pass system flanges for choke clearing.

08. Proper cleaning of all flange-jointing areas.

09. Cutting of all necessary gaskets in proper dimensions from supplied gasket sheets.

10. Fitting of gaskets properly without damage in all appropriate positions.

11. Fitting, assembling & boxing up the manifolds, pipe lines, tube bundles, etc.

12. Appropriate tightening of all nuts-bolts.

13. Making & fitting of all appropriate jacking/ lifting arrangement by cutting, welding, grinding works.

14. All the tools & tackles, cutting & welding appliances and accessories shall be adequately supplied by the executing agency.

15. All best engineering practices & procedures and safety gadgets to be strictly followed while working.

16. Assembling/Dismantling of scaffoldings.

17. Carrying/cleaning of site debris/waste to dumping yard after finishing of job.

18. Returning of unused supplied material(s) to the Engineer-in-charge. 

19. Job shall be executed as instructed by Engineer-in-charge.

For HE-3

1. Opening & dismantling of cooling water inlet& outlet flanges from 4 inch cooling water manifold line from tube bundle to enable for lifting 3 nos. (One manifold in each tube bundle & two flanges in one manifold)
2. Dismantling of inlet & outlet 6 inch cooling water line of each interstage coolers
3. Opening & dismantling of cooling water tube bundle top head from each tube sheet
4. Opening, lifting & then lowering of three water tube bundles. Each tube bundle weighs 2 MT approx. and laying it properly.
5. Opening & dismantling of cooling water tube bundle bottom head from each tube sheet.
6. Opening, lifting & then lowering of the separator (weighs 0.5 MT approx.) and laying it properly.
7. Dismantling of all cooler drain & drain by-pass system flanges for choke clearing.
8. Proper cleaning of all flange-jointing areas.
9. Cutting of all necessary gaskets in proper dimensions from supplied gasket sheets.
10. Fitting of gaskets properly without damage in all appropriate positions.
11. Fitting, assembling & boxing up the manifolds, pipe lines, tube bundles, etc.
12. Appropriate tightening of all nuts-bolts.
13. Making & fitting of all appropriate jacking/ lifting arrangement by cutting, welding, grinding works.
14. All the tools & tackles, cutting & welding appliances and accessories shall be adequately supplied by the executing agency.
15. All best engineering practices & procedures and safety gadgets to be strictly followed while working.
16. Assembling/Dismantling of scaffoldings.
17. Carrying/cleaning of site debris/waste to dumping yard after finishing of job.
18. Returning of unused supplied material(s) to the Engineer-in-charge. 
19. Job shall be executed as instructed by Engineer-in-charge.