ITEM 301- SUPLIMENTAL INFORMATION-OW piping in shaft alley.docx
DOCX document 1 MB Posted
- Solicitation number
- 6933A220Q000005-00001
About this file
This solicitation package seeks proposals for drydocking repairs and an intermediate survey of the T.S. KENNEDY. The Department of Transportation Maritime Administration requires replacement of 6-inch oily waste piping in the shaft alley with 3-inch SCHED 80 pipe from frame 167 to 190, including modification of hangers and fittings. Offerors must attend a second site visit on January 7, 2020 to inspect the vessel, with any questions due by January 10. Proposals are due by an extended date to be specified in a forthcoming amendment. The solicitation also provides information on financing available to minority, women-owned, and disadvantaged businesses through the Short-Term Lending Program.
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Text version
ITEM 219- SUPLIMENTAL INFORMATION-OW piping in shaft alley The Contractor shall replace the 6” Oily waste discharge line in shaft alley with 3” SCHED 80 pipe as follows:
Aft in shaft alley at approximately frame 167 the contractor shall remove the 6” to 3” bell reducer and replace the 6” piping along the STBD side heading aft to approximately frame 190.
The piping turns inboard towards centerline at about a 45-deg. angle then rotates up 90-deg. to a flange. The contractor shall replace up to the flange. See photo below.
The vertical run of piping at frame 190 is not included, the contractor is required to adapt the new 3” pipe to the vertical 6” pipe after the 90-deg. turn up.
The contractor is not required to replace or renew any of the valves or stub-outs. The contractor is required to modify or replace the pipe hangers to fit the new 3” pipe. All piping shall be 3” seamless, mild steel, SCHD 80, fittings and flanges to match. The system MWAP is no greater that 200 psig. All fittings to be 300 psi or better, a final hydrostatic test of the new piping will be required at 150% of 200 psi.
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