0555_B_MMR_AFFF_System_Piping_Replaceme_Revision_I.doc

USNS WALLY SCHIRRA

(T-AKE 8)

500-AUXILIARY SYSTEMS MACHINERY

N32205-19-R-6005

04 February 2019

ITEM NO: 0555

Category “B” MSC Norfolk/N756/EO/NMK

MMR AFFF SYSTEM PIPING REPLACEMENT REVISION I

1.0 ABSTRACT:

1.1 This work item describes the requirements for the replacement of the Main Machinery Room AFFF system piping and install 90/10 copper nickel piping for this system;

2.0 REFERENCES:

2.1 MSC Drawing 555-8494867, Rev A, Contract Guidance Drawing, T-AKE 1 Class, MMR AFFF System Piping Replacement Modification

2.2 MSC Drawing 555-8387000, Rev -, Selected Record Drawing Foam Firefighting System Diagram

2.3 MSC Standard Drawing 803-7081122, Military Sealift Command General Technical Requirements (GTRs)

2.4 MSFSC SMS Procedure 2.1-004-All, Tag out/Lockout

2.5 ASTM Standard F1166, Standard Practice for Human Engineering Design for Marine Systems, Equipment, and Facilities

2.6 NAVSEA Drawing No. 505-7488748 T-AKE 1 Class Flushing Procedures.

2.7 MSC Drawing 631-7488891, T-AKE Class, Paint Schedule

2.8 MMR AFFF Required Material (GFM).

2.9 MMR AFFF Layout.

3.0 ITEM LOCATION/DESCRIPTION:

3.1 Location/Quantity:

3.1.1 Location: Foam Room 1-65-1 and Main Machinery Room 5-66-0

3.1.2 Quantity: One complete piping system for MMR Foam Firefighting

3.2 Item Description/Manufacturer’s Data: AFFF Foam Firefighting System as per reference 2.1

3.2.1 Bill of Materials (Contractor Furnished):

a. Pipe Hangars Quantities: 30 each

b. Rubber (Pipe hangar Clamp Liner): Quantity: 20 square ft.

c. Gasket Material Garlock 9900: Quantity: 30 square feet.

d. Lagging material: Quantity: 30 square feet

e. Welding Material in order to install a fully functional system to meet the requirements of the Work Item, System’s Specification, Manufacturer’s Requirements, Ship Specification and Regulatory Body Requirements, as applicable.

3.2.2 Contactor will provide material not supplied by the Government as required. A condition report shall be submitted to the Contracting Officer detailing the material short falls required to install a fully functional system. Contractor will receive approval from the Contracting Officer prior to providing material short falls.

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES:

4.1 Government Furnished Equipment (GFE): None.

4.2 Government Furnished Material (GFM):

4.2.1 All CuNi piping and fittings identified in Reference

2.8 MMR AFFF Tab.

4.2.2 Primer and Paint.

4.3 Government Furnished Services (GFS): None.

4.4 Government Furnished Information (GFI): None Additional.

5.0 NOTES:

5.1 The Contractor and all subcontractors, regardless of tier, must consult the General Technical Requirements (GTR) to determine applicability to this work item. In performance of this work item, the contractor and all subcontractors regardless of tier must comply with the requirements of all applicable GTRs.

5.2 The Contractor and all subcontractors regardless of tier are advised to review the other work items under this contract to determine their effect on the work required under this work item.

5.3 THIS SHIP CONTAINS HIGH VOLTAGE (HV) ELECTRICAL SYSTEMS. OBEY ALL POSTED AND VERBAL INSTRUCTIONS REGARDING SAFETY AND EXCLUSION FROM HIGH VOLTAGE AREAS. AT NO TIME APPROACH, WORK ON, OR ENTER A HIGH VOLTAGE AREA WITHOUT PROPER AUTHORIZATION.

5.4 THE T-AKE CLASS ELECTRICAL COLOR CODING DOES NOT FOLLOW CONSISTENT COLOR SCHEME. THE SHIP IS KNOWN TO HAVE CURRENT CARRYING CONDUCTORS COLORED GREEN, BLUE, BLACK, AND WHITE. ASSUME ALL ELECTRICAL CABLES ARE ENERGIZED UNTIL TESTED AND PROVEN OTHERWISE. TEST ALL ELECTICAL CABLES TO ENSURE THEY ARE DE-ENERGIZED PRIOR TO WORKING ON THE ITEM.

6.0 QUALITY ASSURANCE REQUIREMENTS:

6.1 All work and testing shall be in accordance with the latest SOLAS regulations, ABS Rules for Building and Classing Steel Vessels, and to the satisfaction of the ABS Surveyor.

6.2 All welding requirements shall be accomplished by certified welders. All welders shall be certified to perform the type of welding required and documentation of such shall be current. Fire watches shall be posted by the Contractor during hot work.

6.3 Clean and gas free affected enclosed spaces per local procedure as approved by the ship and/or MSCREP. Special attention shall be given to ensure proper cleaning and gas free of Main Machinery Room 5-66-0, and adjacent spaces if needed to perform hot work.

7.0 STATEMENT OF WORK REQUIRED:

7.1 Arrangements/Outfitting:

7.1.1 Template new pipe, valve and fitting locations from the existing piping system and reference 2.1.

7.1.2 Make all necessary arrangements (temporary accesses, install pad eyes and lifting gear, rigging path, etc.) to safely install the new Foam Firefighting System piping, valves, etc. using Reference 2.0 as guidance.

7.1.3 Piping removal will not commence until Government Furnished Material has been inventoried and the Contractor and MSC Representative agree all material is on hand to complete the installation.

7.1.4 Protect all cables in cableways in vicinity of welding from heat and welding slag using fire cloth.

7.1.5 Erect staging as required to access overhead piping.

7.2 Structural:

7.2.1 Contractor shall fabricate and/or provide pipe hangers and supports as required.

7.3 Mechanical/Fluids:

7.3.1 Drain, isolate and tag out the sections of piping being worked using Reference 2.4 as guidance and /or approved local tag out procedures.

7.3.2 Removals:

a. Remove piping as per reference 2.1.

7.3.3 Installations:

a. Install new piping, flanges, valves, casketing, and hardware per Reference 2.1.

7.4 Electrical:

7.4.1 De-energize and tag out the sections of the electrical system being worked using Reference 2.4 as guidance and /or approved local tag out procedures.

7.4.2 Temporarily remove motor operator from valves and safely secure in place. Do not remove electrical wiring from the motor operator.

7.4.3 Reinstall motor operator on valves.

7.5 Cleanliness:

7.5.1 Clean and gas free spaces as necessary in

preparation for hot work.

7.5.2 Flush piping after installation in accordance with Reference 2.6. The Contractor shall clean the affected piping systems after completion of all new piping installation in the presence of the MSCREP.

7.5.3 Piping relocated as a result of this work item shall be cleaned in accordance with Reference 2.6 and the respective system diagram instructions.

7.6 Painting:

7.6.1 Clean, Prime, and Paint all new and modified surfaces to match surrounding surfaces in accordance with Reference 2.7 and Reference 2.3 GTR 7.

7.7 Marking:

7.7.1 Install name plates, notices, and markings for all new and modified systems per Reference 2.3, GTR No 29 and Reference 2.1.

7.8 Inspection:

7.8.1 Inspections shall be in accordance with Reference 2.3, GTR 3 and Reference 2.1

7.8.2 Painting Inspection:

a. The Contractor and MSCREP shall conduct a joint inspection of areas disturbed by the installations. These areas are to be prepared and primed before final painting begins to ensure that protective measures are implemented.

b. The Contractor shall perform inspections after completion of each stage of surface preparation, each coat, and each stripe coat, to verify surface condition, dry film thickness (DFT), and space cleanliness, and before requesting final inspection by the MSCREP.

c. All painted areas shall be inspected prior to covering or insulating.

7.9 Testing:

7.9.1 Tests shall be in accordance with Reference 2.3, GTR 3 and Reference 2.1

7.9.2 Perform a Dye-Penetrant Test on all weld joints and repair all weld defects. MSCREP and ABS will witness dye-penetrant test.

7.9.3 Perform a Hydrostatic Pressure Test on the all new and modified piping systems. Hydrostatic test pressure will be 300 PSI (20.4 Bar) as per reference 2.1. MSCREP and ABS will witness the hydrostatic test.

7.9.4 Perform an Operational Test when the fire main system is operational. MSCREP and ABS will witness operational test.

7.10 Preparation of Documentation:

7.10.1 Contractor shall provide a final report in electronic format detailing all welder qualifications, Q.A. forms of the results of the dye-penetrant test, hydrostatic test. And operational testing.

7.10.2 Provide as-built drawing in AutoCAD format of the new piping installation in installed as per reference 2.1. The As-Built drawing will be specific to USNS WALLY SCHIRRA T-AKE 8, using a new drawing number. The MSCREP will provide the new drawing number to be used.

7.11 Manufacturer’s Representatives: None

8.0 GENERAL REQUIREMENTS: None Additional.

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