1、Designation: F3312/F3312M 18Standard Practice forLiquefied Natural Gas (LNG) Bunkering Hose TransferAssembly1This standard is issued under the fixed designation F3312/F3312M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year
2、 of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers the minimum requirements for thedesign, manufacturing, and deployment of bunker hose transfer
3、assemblies for cryogenic service pertaining to bunkering ofliquefied natural gas (LNG)-fueled vessels. The bunker hosetransfer assemblies addressed by this practice are for connec-tions between the LNG-fueled vessel bunker manifold presen-tation flange connections and the LNG supplier bunkeringmanif
4、old presentation flange connections.1.2 Transfer assemblies are suitable for use in multiplemaritime bunkering applications, including but not limited tofacilities, vessels, trucks, and other LNG bunkering supplyservices. This practice will directly address the hose assembly,dry quick disconnect cou
5、plings (DQD), breakaway couplings,gaskets, insulating flange, strainers, and associated fittings.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used in
6、dependently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safet
7、y, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of I
8、nternational Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASME Standards:2ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2through NPS 24 Metric/Inch StandardASME B16.20 Metallic Gaskets for Pi
9、pe Flanges: Ring-Joint, Spiral-Wound, and JacketedASME B36.19M Stainless Steel PipeASME B31.3 Process Piping2.2 ASTM Standards:3ASTM DS56L Metals and Alloys in the Unified NumberingSystem (UNS): 13th Edition2.3 EN Standards:4EN 1474-1 Installation and Equipment for Liquefied NaturalGas. Design and T
10、esting of Marine Transfer Systems.Design and Testing of Transfer ArmsEN 1474-2 Installation and Equipment for Liquefied NaturalGas. Design and Testing of Marine Transfer Systems.Design and Testing of Transfer HosesEN 1474-3 Installation and Equipment for Liquefied NaturalGas. Design and Testing of M
11、arine Transfer Systems.Offshore Transfer SystemsEN 13766 Thermoplastic Multi-Layer (Non-Vulcanized)Hoses and Hose Assemblies for the Transfer of LiquefiedPetroleum Gas and Liquid Nitrogen, Liquefied NaturalGas2.4 IMO Regulations:5IGF Code International Code of Safety for Ships usingGases or other Lo
12、w-Flashpoint Fuels1This practice is under the jurisdiction of ASTM Committee F25 on Ships andMarine Technology and is the direct responsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved June 15, 2018. Published July 2018. DOI: 10.1520/F3312_F3312M-18.2Available f
13、rom American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards v
14、olume information, refer to the standards Document Summary page onthe ASTM website.4Available from European Committee for Standardization (CEN), AvenueMarnix 17, B-1000, Brussels, Belgium, http:/www.cen.eu.5Available from International Maritime Organization (IMO), 4, AlbertEmbankment, London, SE1 7S
15、R, United Kingdom, http:/www.imo.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on P
16、rinciples for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1IGC Code International Code for the Construction andEquipment of Ships Carrying Liquefied Gases in Bulk2.5 ISGOTT Publications:ISGOT
17、T 5th Edition International Safety Guide for OilTankers and Terminals2.6 ISO Standards:6ISO 527-1 Plastics Determination of Tensile Properties Part 1: General PrinciplesISO 1402 Rubber and Plastics Hoses and Hose Assemblies Hydrostatic TestingISO 1746 Rubber or Plastics Hoses and Tubing BendingTests
18、ISO 2768 General TolerancesISO 10380 Pipework Corrugated Metal Hoses and HoseAssembliesISO 13934-1 Textiles Tensile Properties of Fabrics Part 1: Determination of Maximum Force and Elongationat Maximum Force Using the Strip MethodISO 14726:2008 Ships and Marine Technology Identifi-cation Colours for
19、 the Content of Piping SystemsISO TS 18683 Guidelines for Systems and Installations forSupply of LNG as Fuel to ShipsISO 20519:2017-02 Ships and Marine Technology Speci-fication for Bunkering of Liquefied Natural Gas FuelledVessels2.7 MSS Standards:7MSS SP-43-2003 Wrought and Fabricated Butt-Welding
20、Fittings for Low Pressure, Corrosion Resistant Applica-tions2.8 USCG Policy:8CG-521 Policy Letter No. 01-12, CH-1 Equivalency Deter-mination Design Criteria For Natural Gas Fuel Systems(Change-1)CG-ENG Policy Letter No. 02-15 Design Standards for U.S.Barges Intending to Carry Liquefied Natural Gas i
21、n BulkCG-OES Policy Letter No. 01-15 Guidelines for LiquefiedNatural Gas Fuel Transfer Operations and Training ofPersonnel on Vessels Using Natural Gas as FuelCG-OES Policy Letter No. 02-15 Guidance Related roVessels and Waterfront Facilities Conducting LiquefiedNatural Gas (LNG) Marine Fuel Transfe
22、r (Bunkering)Operations3. Terminology3.1 Definitions:3.1.1 breakaway coupling, ncoupling which separates at apredetermined section when required and each separated sec-tion contains a self-closing shut-off valve which seals auto-matically.3.1.2 design pressure, nthe pressure to which each pipingcomp
23、onent of a piping system is designed.3.1.3 design temperature, nthe temperature at which eachpiping component is designed to operate.3.1.4 dry quick disconnect (DQD), na device designed tomake a quick, secure connection and disconnection between ahose and pipe, two pipes or between two hoses.3.1.5 f
24、lange, na joint in a bolted connection.3.1.6 insulating flange, na flanged joint incorporating aninsulating gasket, sleeves, and washers to prevent electricalcontinuity between ship and shore.3.1.7 gasket, na mechanical seal which fills the spacebetween two or more mating surfaces, generally to prev
25、entleakage from or into the joined objects while under compres-sion.3.1.8 hose assembly, ncomponents of the hose includinginner liquid barriers, reinforcement, protective covers, and endconfigurations like flange or threads that have been assembledand tested to meet specification requirements.3.1.9
26、maximum allowable working pressure (MAWP),nthe maximum pressure of a piping system determined, ingeneral, by the weakest piping component in the system or bythe relief valve setting.3.1.9.1 DiscussionThe MAWP is not to exceed the designpressure.3.1.10 polytetrafluoroethylene (PTFE) reinforced gasket
27、material, na flat gasket material made from PTFE withspecial fillers designed to increase the materials tensile prop-erties and decrease the creep relaxation that can occur withvirgin PTFE material in cryogenic applications.3.1.11 presentation flange, nthe last permanent flange atthe transfer manifo
28、ld of both the bunker receiver and supplier.3.1.12 seal, na mechanical device that helps join mecha-nisms together by preventing leakage, containing pressure, orpreventing contamination.3.1.12.1 DiscussionIn most cases a seal is dependent oncompression between a compressible material or device andso
29、lid mating surface.3.1.13 spiral wound gasket, na gasket categorized assemi-metallic gasket consisting of sealing elements formed bywinding two materials (one for sealing, one for resilience) intothin v-shaped spirals.3.1.14 transfer assembly, nliquid or vapor transferassembly, components of the tra
30、nsfer system that include thehose assembly, dry quick disconnect couplings (DQD), break-away couplings, insulating flange, and gaskets that connect thebunker supply of LNG to the bunker manifold of an LNG-fueled vessel.6Available from International Organization for Standardization (ISO), ISOCentral
31、Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier,Geneva, Switzerland, http:/www.iso.org.7Available from Manufacturers Standardization Society of the Valve and FittingsIndustry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http:/www.mss-hq.org.8Available from United States Coast G
32、uard (USCG), 2703 Martin Luther KingJr Ave SE, Washington, DC, 20593-700, https:/www.uscg.mil.F3312/F3312M 1823.2 Acronyms:3.2.1 ISOInternational Organization for Standardization3.2.2 LNGliquefied natural gas3.2.3 MAWPmaximum allowable working pressure3.2.4 PPEpersonal protective equipment3.2.5 SGMF
33、The Society for Gas as a Marine Fuel3.2.6 USCGUnited States Coast Guard4. Significance and Use4.1 This practice provides guidance on the minimum re-quirements for the design, manufacture, installation, and op-eration of bunker hose transfer assemblies for cryogenicservice pertaining to bunkering of
34、LNG-fueled vessels. Thebunker hose transfer assemblies addressed by this practice arefor connections between the LNG-fueled vessel bunker mani-fold presentation flange connections and the LNG supplierbunkering manifold presentation flange connections.5. Transfer Assembly5.1 The bunker hose transfer
35、assemblies are connectionsbetween the receiving LNG-fueled vessel bunker manifold andthe LNG supplier bunkering manifold. A bunker hose transferassembly may be for either a liquid natural gas transfer or acombination of liquid and vapor transfer. The transfer systemassembly consists of numerous comp
36、onents which may includebut not limited to the hose assembly, DQD breakawaycouplings, insulating flange, strainers, gaskets, and associatedfittings.5.2 Materials:5.2.1 Examples of approved materials are but not limited to9 % nickel steel, type 304, 304L, 316, 316L, 321, and 347solution treated stain
37、less steel and aluminum alloy such as type5083 annealed.5.3 Physical Properties:5.3.1 All materials must be capable of withstanding cryo-genic temperatures of 320F 196C found in liquid nitro-gen. The use of liquid nitrogen is commonly used for thetesting of components with a non-volatile cryogenic l
38、iquid orvapor. Common usages would include cool down of equipmentbefore the LNG transfer and in purging cycles.All componentsshall be employed in accordance with the recognized standards(inch-pound and SI) and applicable regulations as referenced inSection 2.5.4 Design:5.4.1 The transfer assembly is
39、 to have an internal MAWP atleast 150 PSIG 10.34 BAR.5.4.2 The design pressure is not to be less than the pressureof the most severe condition of coincidental internal or externalpressure and temperatures (maximum or minimum) expectedduring service. However, this practice does impose a specificminim
40、um design pressure that has the potential to exceed themaximum expected service pressure5.4.3 The design temperature is not to be greater or less thanthe temperature of the piping component material at the mostsevere condition (maximum or minimum) of temperature andcoincidental pressure expected dur
41、ing service.5.4.4 Suitable means shall be provided to relieve the pres-sure and remove LNG from any piping between the outermostmanifold valves and bunker hoses to the tanks, or other suitablelocation, prior to disconnection.5.4.5 Means are to be provided for the elimination of anysparks or static e
42、lectricity when bunkering systems are in use,connected or disconnected. The hose, pipes, and transfersystem components shall be electrically continuous, but shallbe electrically insulated from the vessel receiving the bunkerand compliant with a recognized standard, see 5.7.5.5 Fittings:5.5.1 The sel
43、ection of the proper fittings for all cryogenicapplications needs are to be in accordance with the following:5.5.1.1 Welding (ASME B31.3).5.5.1.2 National Pipe Thread (NPT) (ASME B31.3).5.5.1.3 Flange bolting dimensions (ASME B16.5).5.5.1.4 JIC threaded connections for sizes 1 in. 25 mm andbelow.5.5
44、.1.5 Floating flange and turn back nipples as in accor-dance with MSS SP-43 as part of ASME B36.19M.5.6 Gaskets:5.6.1 The gaskets must be capable of maintaining a seal attemperatures as low as 320F 196C.5.6.2 Spiral wound gaskets are to comply with ASMEB16.20.5.6.3 Virgin PTFE shall not be used as i
45、t susceptible tocreep and can be displaced during thermal cycling.5.6.4 The gaskets are to be fabricated of compound mate-rials. This would include semi-metal gaskets containingexpanded graphite or PTFE filler or expanded PTFE with multidirectional strength.5.6.5 Gaskets are to be used in accordance
46、 with manufac-turer recommendations. To mitigate the risk of spraying leaks,flange connections must be protected by a spray shield.5.6.6 Gaskets need to be regularly inspected.5.6.7 Gasketed pipe joints and hose connections shall gen-erally be electrically bonded. However, an approved insulatingflan
47、ge shall be in a section of the hose string between thebunker supply and the vessel receiving the bunker fuel (refer to5.7 of this practice).5.7 Insulating Flange:5.7.1 The use of an approved insulating flange shall be in asection of the hose string between the bunker supply and thevessel receiving
48、the bunker. The specification of this insulationflange can be found in ISO 20519, Section 5.5.6, and ISGOTT,17.5.5.5.8 Strainer:5.8.1 Strainers shall be placed in use as close to thebunkering manifolds as possible.5.8.2 Strainers are to be made of materials that will besuitable for the cryogenic tem
49、peratures found in LNG transfer,nitrogen testing, cool down, and purging operations.5.8.3 The proper sizing of strainers shall be employed toprotect the valves, pumps, and engine components fromdamage causing dirt, debris, and ice.F3312/F3312M 1835.9 Dry Quick Disconnects (DQD):5.9.1 A DQD is a device that will allow for quick connec-tion or separation of the vessel from its bunker supply in theevent of an emergency, while providing protection for theoperators, vessel, and the environment.5.9.2 The design of a DQD, will
