USNS MARY SEARS
T-AGS 65
Solic.No.: MLL-16-T65-0002
AUXILIARY SYSTEMSMACHINERYOctober15, 2016
ITEM NO: 0513Category “A” USMMI/MLL/RCS
Revision X
MODIFY PURIFIER FUEL OIL PIPING
1.0ABSTRACT:
1.1This work item shall modify the existing purifier fuel oil piping to allowing converting the lube oil purifier to a fuel oil purifier.
2.0REFERENCES:
2.1MSC Drawing 541-7400545, Fuel oil Transfer Piping Diagram
2.2MSC Drawing 501-7400501, Piping Module 10 sheets 1-12
2.3MSC Standard Drawing 803-7081122, Military Sealift Command General Technical Requirements (GTRs)
2.4MSFSC SMS Procedure 2.1-004-All, Tag out/Lockout
2.5ASTM Standard F1166, Standard Practice for Human Engineering Design for Marine Systems, Equipment, and Facilities
3.0ITEM LOCATION/DESCRIPTION:
3.1Location/Quantity
3.1.1Location: Engine Room, 3-101-0-E
3.1.2Quantity:
- One (1) per ship: Lube oil Purifier, CNTFGL, 383 GPH, 8500 RPM,
Westfalia Separator Mineral oil, Model 2168-0110-C25l, S/N 9001-757
4.0USMMI FURNISHED EQUIPMENT/MATERIAL/SERVICES - CONTRACTOR FURNISHED EQUIPMENT/MATERIAL/SERVICES:
4.1USMMI Furnished Equipment (USMMIFE): None
4.2USMMI Furnished Material (USMMIFM): None
4.2.1One (1) each Pump Connection Complete, 2168-1159-170
4.2.2One (1) each Pre-set Valve w/connections Complete 1-1/2", 2163-2806-000
4.2.3Two (2) each Gasket, 0004-5454-740
4.3.4Two (2) each Gasket0018-4844-750
4.3.5Eight (8) each Cylinder Screw, 0019-6166-150
4.3.6Four (4) each Gasket, 0004-5475-780
4.3.7Six (6) each Coupling, Socket Weld 1 inch, PN: 45005K196
4.3.8Two ( 2) each Reducing Coupling, Butt Weld 1-1/2 in x 1 inch, PN: 4981T119
4.3.9One (1) each Eccentric Reducer 1-1/2 inch x 1 inch, PN: 43425K547
4.3.10Four (4) each Weld let, 3/4 to 36 x 3/4 Inch outlet, PN: 4583T33
4.4USMMI Furnished Services (USMMIFS): None
4.5USMMI Furnished Information (USMMIFI): References 2.1, through 2.5
4.6Estimated materials, fitting quantities,and piping lengths can be determined from References2.1 and 2.2. The Contractor shall provide the exact quantities and additional material such as fittings, welding material, pipe hangers, etc., which are not specifically included in the references, in order to modify the system to meet the requirements of the work item, system’sspecification, manufacturer’s requirements, ship specification and regulatory body requirements, as applicable.
5.0NOTES:
5.1This work item shall modify the lube oil purifier to a fuel oil purifier
5.2The Contractor shall provide all labor, materials, equipment, special tooling, rigging, staging, shop facilities, crane services, and transportation services, as necessary to accomplish all requirements of this work item.
5.3The Contractor and subcontractors, regardless of tier must consult the Reference 2.3General 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 GTR’s including but not limited to GTR’s 1-7, 22, 23, 28 and 29.
5.4The Contractor and subcontractors, regardless of tier,shall review other work items under this contract to determine their effect on the work required under this work item. Based on this review the contractor shall plan and schedule work to minimize conflicts between this and other work items.
5.5The use of lap joint (Vanstone) flanges is prohibited.
6.0QUALITY ASSURANCE REQUIREMENTS:
6.1All workmanship and testing shall be in accordance with the latest SOLAS regulations, ABS Rules for Building and Classing Steel Vessels.
6.2All welding and brazing requirements shall be accomplished using ABS approved welding and/or brazing procedures by welders certified to these procedures. 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 Contractorduring any hot work.
6.3Clean and gas free affected enclosed spaces per local procedure as approved by the ship and/or USMMI Port Engineer and MSCREP. Special attention shall be given to ensure proper cleaning and gas free of affected areasand adjacent spaces if needed to perform hot work.
7.0STATEMENT OF WORK REQUIRED:
7.1Arrangements/Outfitting:
7.1.1Contractor is to ship check system with Chief Engineer. Piping layout is to match #1 Fuel Purifier as closely as possible. Contractor is to provide all labor and support to remove, fabricate and reinstall new piping using USMMI furnished materials. Any materials not furnished by USMMI will be provided by contractor.
7.1.2Template new pipe, valve and fitting locations from the existing piping systemon #1 purifier using References 2.1 and 2.2.
7.1.3Clean and gas free spaces as necessary in preparation for hot work. Note that this may be in progress for other work items.
7.1.4Flush piping after installation. The Contractor shall clean the affected piping systems after completion of all new piping installation in the presence of the MSCREP.
7.2Structural:
7.2.1Contractor shall fabricate and/or provide pipe hangersand supports as required.
7.3Mechanical/Fluids:
7.3.1Drain, isolate and tag out the sections of piping being worked on andisolate and tag out system using the tag out procedures.
7.3.2Remove the existing section of the lube oil piping and cap line at the lube oil tank valves.
7.3.3Modify piping the fuel oil piping to conduct the system to the #2 purifier.
7.3.4Installations:
7.3.3.1Install new piping and hardwareas required to perform this work item. The new piping and fitting material, size, type, and specifications shall be in accordance with References 2.1 and 2.2.
7.4Electrical: None additional
7.5Electronics: None additional
7.6Painting:
7.6.1Clean, prime and paint all new and modified surfaces and pipe to match surrounding surfaces in accordance with GTR 7 (Reference 2.3).
7.7Marking:
7.7.1Install name plates, notices, and markings for all new and modified systems per GTR No 29 (Reference 2.3) and References 2.1 and 2.2.
7.8Inspection:
7.8.1Inspections shall be in accordance with GTR 3 (Reference 2.3),References 2.1 and 2.2, and as described herein to the satisfaction of the USMMI Port Engineer or his representatives.
7.8.2Welding and Brazing Inspection:
7.8.2.1The Contractor andUSMMI Port Engineer shall visually inspect new, modified, or repaired welds in accordance with ABS requirements.
7.8.2.2The Contractor and the USMMI Port Engineer shall inspect all hot work prior to applying paint.
7.8.3Painting Inspection:
7.8.3.1The Contractor andthe paint representative 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.
7.8.3.2The 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 paint representative.
7.8.3.3All painted areas shall be inspected prior to covering or insulating.
7.8.3.4Other Inspections: The Contractor shall perform a preliminary inspection prior to calling out a formal inspection.
7.8.3.5The paint representative shall inspect the paint and general condition of all affected systems, structures, arrangements, surrounding areas, etc.
7.8.3.6Testsshall be in accordance with GTR 3 (Reference 2.3), Reference 2.1, and as described herein to the satisfaction of the MSCREP.
7.8.3.7The Contractor shall conduct preliminary tests on all completed work before calling for an official test.
7.8.3.8The contractor shall verify that all structural work, including any structural attachments or penetrations which would affect the tightness of the structure, is complete and ready for service.
7.8.3.9The Contractor shall perform a hydrostatic pressure test of the affected piping systems. Hydrostatic test on all new and modified systems shall be per Reference 2.1and GTR 3 (Reference 2.3). Machinery shall be isolated from tested piping, preferably by use of blank flanges.
7.8.3.10The Crew shall perform an operational test of all new and modified piping sections and equipment. Operational test on all new and modified systems shall be per GTR 3 (Reference 2.3). Operation of the new systems and equipment shall be performed to the satisfaction of the chief engineer.
7.8.3.11TheContractor shall perform a completion test and provide documentation proving that all aspects of the work item have been completed. A completion test may include a series of functional, operational, and hydrostatic tightness tests. The Contractor shall demonstrate that the installation isUSCG and ABS compliant and that the equipment installations are complete and ready for service.
7.9Preparation of Drawings/Documentation:
7.9.1The Contractor shall prepare as-built drawings to document the work accomplished by this item.
7.9.2Drawings at a minimum shall include a red line mark-up of the fuel oil system diagram drawing.
7.9.3The Contractor shall prepare working and as-built drawings in CAD format in accordance with GTR 5 (Reference 2.3):
7.9.4Drawings at a minimum shall include one CAD master, three full size hard copies, and one PDF format copy.
7.10Manufacturer’s Representatives: None
8.0GENERAL REQUIREMENTS:
8.1All areas involved in work or traversed by workmen or equipment shall be left clean and in good order.
8.2All waste matter resulting from this work itemshall be collected in suitable containers provided by the Contractor and shall be disposed of by the Contractor in strict compliance with current local antipollution and public health regulations.
VR16-0099
0503-1