SPECS HP AIR FLASKS.pdf

USNS LARAMIE

( T-AO 203 )

MACHINERY, AUXILIARY SYSTEMS CONTRACT NO. XXXXXX-XXX

ITEM NO. mor/sor CATEGORY "A" 2022-02-07

High Pressure Air vessels MSC/N72/xxx xxxx - 1

1.0 ABSTRACT: This item describes the manufacture of 28

(twenty-eight) high pressure air flasks.

2.0 REFERENCES:

2.1 DWG 500-6580222 Pressure Vessels for Air Flasks & Air

Receivers

2.2 ABS Marine Vessel Rules 2022

2.3 ASME Boiler and Pressure Code VIII

2.4 ABS Generic Rules for Classification, Materials and

Welding and Survey after Construction – Part 2 2022

2.5 Military Sealift Command General Technical

Requirements (GTR)

3.0 ITEM LOCATION/DESCRIPTION:

3.1 Location/Quantity:

3.1.1 Location: Various

3.1.2 Quantity: 20 (twenty)

3.2 Item Description/Manufacturer's Data: None

3.3 Bill of Material:

3.3.1 See Reference 2.1 for estimate

3.3.2 Quantities given in the List of Materials are

considered estimates. The Contractor shall provide these quantities and reasonable additional material in order to install a fully functional system that meets the requirements of this specification.

3.3.3 Additional material/components necessary to

accomplish work required by this work item, such as hangers, pipe fittings (i.e. pipe elbows, connectors, adapters, weld rods, weld material, etc.) are not included above or below, and shall be provided by the Contractor.

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES: None

5.0 NOTES:

MACHINERY, AUXILIARY SYSTEMS CONTRACT NO. XXXXXX-XXX

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5.1 The contractor and all subcontractors, regardless of

tier must consult the Military Sealift Command 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 including but not limited to

GTRs 1 through 7, 23 and 29.

5.2 The contractor and subcontractors shall review other

work items under this contract, to determine their effect on the work required by this item. Based on this review the contractor shall plan and schedule work to minimize conflicts between work items.

5.3 Materials not listed as Government Furnished (GFM)

shall be furnished by the Contractor. The Contractor shall provide all labor and material required to accomplish this work item including but not limited to staging, space certification, contamination containment, firewatches, removal and reinstallation of all interferences including insulation in way of repairs to effect a complete and finished end result.

5.4 Provide certificates of inspection and approvals by

USCG/ABS upon completion of this work item.

6.0 QUALITY ASSURANCE REQUIREMENTS: None Additional

7.0 STATEMENT OF WORK REQUIRED:

7.1 Arrangements/Outfitting: None Additional

7.2 Structural: None Additional

7.3 Mechanical/Fluid:

MACHINERY, AUXILIARY SYSTEMS CONTRACT NO. XXXXXX-XXX

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7.3.1 The contractor shall review ref 2.1 in its

entirety prior to starting any work.

7.3.2 The contractor shall submit Design Approval to

ABS engineering and the MSC REP before performing any work and an ABS approval letter will be received.

a. The contractor shall meet all ABS requirements including but not limited to Part 4, chapter 4, section 1 of reference 2.2.

b. The contractor shall meet all ASME standards and requirements as outlined in ref 2.3.

7.3.3 The contractor shall make 20 air flasks in

accordance with sheet no. 7 of ref 2.1. The air flasks shall be made to ASME standards as described in ref 2.3.

a. Air Flasks shall be manufactured such that at a minimum they have support brackets capable of supporting the weight of the air flasks and an additional 2Gs of force due to ship’s motion.

i. Air Flasks shall have two support brackets for mounting as described in

Detail 14-G of ref 2.1.

ii. Air Flasks shall also be manufactured with three 4” x 4” x 7.5# T columns about the base of the air flasks. Use sheet no.

8 of ref 2.1. as guidance.

b. Welding of pressure parts and of non-pressure parts to pressure parts are to be performed by means of qualified welding procedures and by qualified welders. The qualification of welding procedures is to be conducted in accordance with Section 2-4-3 of the ABS Rules for

Materials and Welding as found in ref 2.4.

7.3.4 Contractor shall obtain all required approvals

and certifications as required by ref 2.1, ref

2.2, and ref 2.3. This is to include ASME certification on all of the air flasks.

MACHINERY, AUXILIARY SYSTEMS CONTRACT NO. XXXXXX-XXX

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7.4 Electrical: None Additional

7.5 Electronics: None Additional

7.6 Preparation of Drawings: Contractor shall provide a

technical drawing for the air flasks. Drawings are to be in accordance with ref 2.5. Drawings shall be submitted in pdf form to the MSCREP and

Tech Library

9276 3rd Ave., Bldg LP-26

Norfolk, VA 23511

7.7 Inspections/Tests:

7.7.1 The contractor shall complete all post

construction tests as found in ref 2.2 and ref

2.3.

7.7.2 Perform a hydrostatic test on every pressure

vessel. The test shall be at 4500 PSIG. All tests shall be witnessed and accepted by ABS surveyor and MSCREP. Flush components with clean water after performance of hydrostatic test.

7.8 Painting:

7.8.1 Clean, prime and paint all new and modified

surfaces (including piping lagging) to match surrounding surfaces using Reference 2.5 as guidance.

7.8.2 Contractor shall restore all surface coatings, lagging and disturbed insulation during performance of this work.

7.9 Marking:

7.9.1 Install name plates for all new and modified

systems using refS 2.1, 2.3 and ref 2.5 as guidance.

7.10 Manufacturer’s Representative: None Additional.

8.0 GENERAL REQUIREMENTS: None Additional