Pipe_and_Steel_Engine_Ship_Check_Notes.pdf

PIPE AND STEEL – ENGINE – SHIP CHECK NOTES

Item No 1 – SR No 5186732 - Fwd House Graywater Drain

This job is cancelled as it was completed by crew during last cruise

Item No 2 – SR No 5186717 – Sewater Flushing Isolation Valves

Ship to supply more definitive locations for the following:

1) One section of piping to be removed from the overhead of 02 port fwd house state room and rerouted thru the overhead of the adjacent passageway

Picture and location to be supplied to contractors

2) Hydrodynamic tank shall be installed on the end run of the piping on 03 deck forward house

Picture and location to be supplied to contractors

3) 4 each Master shutoff valves – 2 each forward house and 2 each after house to be supplied and installed in the main supply lines

Picture and location to be supplied to contractors

Item No 3 – SR No 5189812 – Forward MSD Vent Reroute

This job is cancelled for now as Chief Engineer does not have a clear idea how to repair the problem

Item No 5 – SR No 5186727 – Heating 35# Steam Isolation Valves

Note: This job has been cancelled by CE Coyle as valves identified are not in the right locations to have the desired effect

Item No 6 – SR No 0302097 – Clean (3) Pee –Blackwater – Traps and Seven (7) – not Six (6) as

Noted in the SOW

Contractor is required to open and clean and replace internals with new gaskets in a total of seven (7) Grease Traps

Item No 7 – In House Piping Repairs- SR No 0302132

Page #13 – Frame #75 – Scullery part of the Galley

Remove all mild steel piping and replace with copper pipe

Interference removal includes overhead panels plus possible other obstructions that have to be removed and then reinstalled at end of repair

Page #14 – Frame #80 – Lower Class Mess Room

Repairs were completed by the crew – repaired piping has to be lagged with non-asbestos material and metal jacketing

No mechanical repairs for this job; Interference removal and reinstallation contractor responsibility

Page #15 – Frame #20 – Forward Deck Classroom above overhead panels

Renew with new copper nickel piping- install lagging when piping repairs completed

Page #16 – Frame #35 – Overhead Storeroom 1-35-1

Renew ¾” copper piping and install lagging when piping repairs completed

New Item Water Heater Potable Water Valve Renewal

ABSTRACT

This item describes the renewal of all globe and gate potable isolation valves on both ship’s water heaters with bronze flanged ball valves. Existing valves are 150 psi rated, 4 bolt flanged, brass or bronze with flat- face flanges as noted in the photos of the existing system. New ball valves are to be 150 psi rated- SS ball and Teflon seats with Bronze 4-bolt flat-faced flanges and are to be 2 or 3 piece valves to allow for ease of repair. If threaded valves are to be used supply brass threaded nipples between bronze 4-bolt flat-faced flanges.

REFERENCES

Technical manuals and drawings available on vessel.

ITEM LOCATION / DESCRIPTION

Item Location: 26 Foot Flat Engine Room, Centerline at Water Heaters, Frame 116

Item description: Renewal of all stated globe and gate valves with flanged ball valves

GOVERNMENT FURNISHED EQUIPMENT / MATERIAL / SERVICES

None

STATEMENT OF WORK

GENERAL:

Supply all labor, equipment and materials to perform the following repairs and modifications. All dimensions are estimated. Contractor is responsible for ship checking and verifying dimensions and Data prior to bid submission and notice to proceed.

Piping runs will require the following procedures for repair and renewal:

Unless otherwise specified, all replaced piping shall be 70-30 copper-nickel. The copper-nickel fittings shall be a Sil-Braze type, compatible to 70-30 copper-nickel pipe. Piping shall be 150 class MIL T 164200 70-30 copper-nickel.

Sil-Braze Fittings shall be MIL F 1183 70-30 copper nickel. Flanges connected to Cu-Ni (copper-nickel) shall be 200 class MIL F 1183

All braze materials and fluxes shall be compatible with materials being brazed. All brazing on copper pipe shall meet the requirements of AWS A5.31 with braze filler material Bag 1, 5, or 7.

All fluxes shall be compatible with filler and piping. Note: All excess flux shall be washed off completely at completion of repair.

All new piping shall be of the same size as existing piping.

All couplings shall be braze-on socket type. There shall be no threaded connections (except for threaded ball valves connections to flanges if no solid piece flanged ball valves are available), unions or couplings.

Contractor shall reattach all existing pipe hangers & add pipe hangers where good engineering practice warrants (distance between hangers no longer than 36 inches). After completion of work contractor shall reinstall any and all interferences and shall repair, renew or replace any removed, damaged or missing pipe insulation in way of repairs.

Contractor shall pressure test, with normal pipe pressure, all piping repaired prior to insulating repaired sections. All piping shall be reinsulated.

#1 Water Heater:

Renew all existing valves listed below with bronze flanged ball valves of corresponding size. If necessary, flange positions will be modified to receive new flanged ball valves.

All Water Heater Piping is Copper-Nickel

Position Type Size Flange to Flange

Heater Supply Globe 2 ½” 8” Heater Inlet Gate 2 ½” 7 ½”

Heater Outlet Gate 2 ½” 7 ½” Recirc Inlet Gate 2 ½” 7 ½”

Recirc Outlet Globe 2 ½” 8” Recirc By-Pass Gate 2 ½” 7 ½”

#2 Water Heater

All Water Heater Piping is Copper-Nickel.

Position Type Size Flange to Flange

Heater Supply Globe 2” 7” Heater Inlet Gate 2” 7”

Heater Outlet Gate 2” 7” Recirc Inlet Gate 2” 7”

Recirc Outlet Globe 2” 7” Recirc By-Pass Gate 2” 7”

Water Heater Crossover

All Water Heater Piping is Copper-Nickel.

Position Type Size Flange to Flange Crossover Inlet Gate 2” 7” Crossover outlet Gate 2” 7”

All work shall be started after 0800 each day and completed prior to 1530 each day so that Hot Water may be restored.

All new valves will have new lagging blankets provided and installed to allow for ease of repairs and replacement valves. All disturbed pipe lagging shall be renewed with metal jacketed insulation.

Deliverables

Supply invoiced copies of valves with specifications for regulatory review if necessary and for replacement sourcing and parts numbering

Supply copies of piping with material specifications for the piping and fittings and solder used

Photos of existing valves – see below