1、Designation: F2805 16Standard Specification forMultilayer Thermoplastic And Flexible Steel Pipe AndConnections1This standard is issued under the fixed designation F2805; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of l
2、ast revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers requirements and test methodsfor materials, dimensions, workmanship, markings for factoryman
3、ufactured multilayer flexible steel pipe with thermoplasticinner and outer layers and end connections (Fig. 1). It coversnominal sizes 2 in. through 8 in. (50 mm through 200 mm).Flexible steel pipes are multilayered pipe products manufac-tured in long continuous lengths and reeled for storage,transp
4、ort and installation. The multilayer thermoplastic andflexible steel pipe governed by this standard are intended foruse for the transport of crude oil, natural gas, hazardouschemicals, industrial chemicals and water.21.2 The values stated in inch-pound units are to be regardedas standard. The values
5、 given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 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 establ
6、ish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3A109/A109M Specification for Steel, Strip, Carbon (0.25Maximum Percent), Cold-RolledA312/A312M Specification for Seamless, Welded, andHeavil
7、y Cold Worked Austenitic Stainless Steel PipesA333/A333M Specification for Seamless and Welded SteelPipe for Low-Temperature Service and OtherApplicationswith Required Notch ToughnessA506 Specification for Alloy and Structural Alloy Steel,Sheet and Strip, Hot-Rolled and Cold-RolledA519 Specification
8、 for Seamless Carbon and Alloy SteelMechanical TubingD792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD1505 Test Method for Density of Plastics by the Density-Gradient TechniqueD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2122 Test Met
9、hod for Determining Dimensions of Ther-moplastic Pipe and FittingsD2765 Test Methods for Determination of Gel Content andSwell Ratio of Crosslinked Ethylene PlasticsD3350 Specification for Polyethylene Plastics Pipe and Fit-tings MaterialsF412 Terminology Relating to Plastic Piping Systems2.2 ASME S
10、tandard:4B16.5 Pipe Flanges and Flanged Fittings: NPS12 throughNPS 24 Metric/Inch Standard1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.68 on EnergyPiping Systems.Current edition approved Aug. 1, 2016
11、. Published December 2016. Originallyapproved in 2009. Last previous edition approved in 2011 as F280511.DOI:10.1520/F280516.2The multilayer thermoplastic and flexible steel pipe and connections describedin this standard is covered by patents (FlexSteel Pipeline Technologies, 500 DallasStreet Suite
12、500, Houston, TX 77002, USA). Interested parties are invited to submitinformation regarding the identification of acceptable alternatives to this patenteditem to the Committee on Standards, ASTM Headquarters, 100 Barr Harbor Drive,West Conshohocken, PA 19428-2959. Your comments will receive careful
13、consid-eration at a meeting of the responsible technical committee which you may attend.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summa
14、ry page onthe ASTM website.4Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive,
15、 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 Principles for theDevelopment of International Standards, Guides and Recommendations issue
16、d by the World Trade Organiziation Technical Barriers to Trade (TBT) Committee.12.3 ANSI Standard:5B 16.5 Pipe, Flanges, and Flanged Fittings2.4 API Standards:617B Recommended Practice for Flexible Pipe17J Specification for Unbonded Flexible Pipe2.5 ISO Standards:7ISO 9080 Plastics Piping and Ductin
17、g Systems Determi-nation of the Long-Term Hydrostatic Strength of Thermo-plastics Materials in Pipe Form by Extrapolation2.6 PPI Standards:8TR-4 PPI Listing of Hydrostatic Design Basis (HDB),Strength Design Basis (SDB), Pressure Design Basis(PDB), and Minimum Required Strength (MRS) Ratingsfor Therm
18、oplastic Piping Materials or PipeTR-19 Thermoplastics Piping for the Transport of Chemi-cals2.7 BSI Standards:9EN 10210 Hot Finished Structural Hollow Sections of Non-Alloy and Fine Grain SteelsEN 10297 Seamless Circular Steel Tubes for Mechanicaland General Engineering Purposes3. Terminology3.1 Def
19、initionsDefinitions are in accordance with Termi-nology F412 and abbreviations are accordance with Terminol-ogy D1600, unless otherwise specified.3.2 Definitions of Terms Specific to This Standard:3.2.1 coupling, nspecific type of fitting developed forjoining one section of spoolable pipe to another
20、.3.2.2 design pressure, nthe minimum or maximumpressure, inclusive of operating pressure, surge pressure in-cluding shut-in pressure where applicable, vacuum conditionsand static pressure head.3.2.3 design temperature, nhighest temperature at whichthe product has been determined by qualification tes
21、ting to besuitable at the nominal pressure rating3.2.4 end connection, nconnects the pipe ends with adja-cent pipe or other parts of the system.3.2.5 factor, design (Fd), nnumber less than or equal to 1that takes into consideration the manufacturing and testingvariables including normal variations i
22、n the material,manufacture, dimensions, good handling and installationtechniques, and the precision and bias of the test methods.3.2.6 factors, service (Sn), ngroup of operating factorsless than or equal to 1 which considers the application or use,and may include, environment (fluids), cycling loadi
23、ng, andtemperatures.3.2.7 inner sheath layer, npipe lining made from extrudedthermoplastic compound.3.2.8 maximum operating pressure (MOP), npressure ob-tained by multiplying the MPR by application related servicefactors5Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th
24、 Floor, New York, NY 10036, http:/www.ansi.org.6Available from American Petroleum Institute (API), 1220 L. St., NW,Washington, DC 20005-4070, http:/www.api.org.7Available from International Organization for Standardization (ISO), ISOCentral Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214
25、Vernier,Geneva, Switzerland, http:/www.iso.org.8Available from Plastics Pipe Institute (PPI), 105 Decker Court, Suite 825,Irving, TX 75062, http:/www.plasticpipe.org.9Available from British Standards Institute (BSI), 389 Chiswick High Rd.,London W4 4AL, U.K., http:/www.bsi-.FIG. 1 Cutaway of Flexibl
26、e Steel PipeF2805 1623.2.9 maximum pressure rating (MPR), nthe estimatedmaximum internal hydrostatic pressure that can be appliedcontinuously to a pipe with a high degree of certainty thatfailure will not occur.3.2.10 nominal pressure rating (NPR), npressure rating ofthe pipe as defined by the manuf
27、acturer and does not exceedthe MPR.3.2.11 outer sheath layer, nexternal extruded thermoplas-tic coating applied to resist mechanical damage and to providethe underlying layers of the pipe protection from the environ-ment.3.2.12 product family, ngroup of pipe products being arange of sizes and pressu
28、re ratings manufactured with the samematerial types, production process and process controls andpipe construction.3.2.13 product family representative (PFR), nproductvariant chosen for full qualification.3.2.14 product variant (PV), nmember of a product familywith a specific pressure rating and diam
29、eter.3.2.15 qualified procedureprocedure subjected to suffi-cient testing to show that the procedure produces consistentlyreliable results and has been demonstrated to meet the specifiedrequirements for its intended purpose.3.2.16 tensile armor layer, nhoop and structural reinforce-ment helically wr
30、apped over the inner sheath layer. The steellayers are not bonded.3.2.17 traceability, nability to track the history, applica-tion or location of a material or component by means ofrecorded identifications4. Materials4.1 Polyethylene MaterialsPolyethylene compounds usedin the manufacture of these pr
31、oducts shall have a minimum cellclassification of 444474 in accordance with SpecificationD3350 (PE4710 as defined in PPI TR-4) or PE100 in accor-dance with ISO 9080. Addition of pigments or stabilizers tonatural polyethylene compounds during extrusion is permitted.4.2 Crosslinked Polyethylene Materi
32、alsCrosslinked poly-ethylene compounds used in the manufacture of these productsshall be made from polyethylene compounds which have beencrosslinked by peroxides, azo compounds or silane compoundsin extrusion or by other means such that the inner sheath layerand/or the outer sheath layer meets the f
33、ollowing performancerequirements:4.2.1 DensityWhen determined in accordance with TestMethod D1505 or D792, the crosslinked polyethylene materialshall have a minimum density of 0.033 lb/in3(0.926 g/cm3).4.2.2 Degree of CrosslinkingWhen tested in accordancewith Test Method D2765, Method B, the degree
34、of crosslinkingfor the PEX material shall be within the range of 65% to 89%inclusive.4.3 Long Term Hydrostatic Strength Polyethylene andcrosslinked polyethylene compounds used in the manufactureof these products shall have Hydrostatic Design Basis (HDB)listings in PPI TR-4.4.4 Rework materialsRegrou
35、nd or reprocessed thermo-plastic materials are not permitted to be used.4.5 Steel Materials:4.5.1 Steel tensile armor layers shall consist of steel stripmanufactured in accordance with Specification A506 or Speci-fication A109/A109M with a number 3 edge and number 1 or2 finish.4.5.2 Steel in end con
36、nections shall meet the requirementsof Specification A312/A312M, Specification A333/A333M,Specification A519, EN 10210, or EN 10297 (Fig. 2). Specialtysteel grades requested by the purchaser must meet the sameminimum performance requirements.4.5.3 Flanges which are incorporated within the design ofe
37、nd connections shall meet the requirements of ASME B 16.5.4.6 The manufacturer shall have procedures for ensuringthat materials are received in a condition that is suitable forprocessing, including receiving inspection to discover damageor contamination from shipping and verification of appropriatem
38、aterial properties and shall include measurable physical,mechanical, chemical, and performance characteristics andtolerances.5. Requirements5.1 WorkmanshipThe inside and outside surfaces of thepipe shall be semi-matte or glossy in appearance and free ofchalking, sticky or tacky materials. The pipe s
39、urfaces shall befree of cracks, holes, blisters, voids, foreign inclusions or otherdefects that are visible to the naked eye.5.2 Multilayer Pipe DimensionsPipe Dimensions shallcomply with Table 1, Table 2 and Table 3, when measured inaccordance with Test Method D2122.5.3 Design PressureThe pipe shal
40、l have the design pres-sures listed in Table 2 and Table 3.NOTE 1The typical multilayer pipe construction is a three layerstructure consisting of an extruded thermoplastic inner liner or pipe,helically wrapped layers of steel strips, and an extruded thermoplasticouter layer or sheath.5.4 Outside Dia
41、meterThe outside diameter of the appli-cable pipe layer shall be as shown in Table 1, Table 2 or Table3 when measured in accordance with Section 7.5.5 Pipe Wall ThicknessThe wall thickness of the appli-cable pipe layer shall be as shown in Table 1, Table 2 or Table3 when measured in accordance with
42、Section 7.5.6 Laying LengthThe pipe may be sold in any layinglength agreeable to the user.6. Quality Assurance Tests6.1 Factory Acceptance TestPrior to shipment, the con-tinuous length of pipe shall be pressure tested in accordancewith manufacturers documented procedures as detailed in 7.3.6.2 Retes
43、t and RejectionRetesting in the event of a testfailure shall be conducted to the same test procedures orrequirements.7. Test Methods7.1 Outside DiameterThe outside diameter of each com-pleted layer shall be measured and recorded according toF2805 163manufacturers procedures. The outside pipe diamete
44、r of eachcompleted layer shall be measured at a frequency of every 30ft (10 m) for the first 150 ft (50 m) and according tomanufacturers procedures thereafter.7.2 Wall ThicknessThe thickness of the extruded polymerlayers shall be checked by means of a calibrated ultrasonicthickness instrument, with
45、an absolute accuracy of at least 50T (2 mil). The extruded layer wall thickness shall be measuredat a frequency of every 30 feet (10 m) for the first 150 ft (50m) and according to manufacturers procedures thereafter.7.3 Pressure TestingUnless otherwise specified by thepurchaser, the pipe shall be te
46、sted for a minimum of 8 hours at1.3 times the stated design pressure.NOTE 2A pipeline system is typically commissioned after completionby filling it with water and conducting a pressure test. Flexible steel pipebehavior when hydrotested is somewhat different from the behavior ofrigid steel pipes. Th
47、e layers are un-bonded and upon initial pressurizationundergo a stabilization process referred to as conditioning. Afterconditioning, the pipe is held at the test pressure for a period of time.8. Test Reports and Certification8.1 Upon request of the purchaser, the manufacturer shallprovide certifica
48、tion that the product was manufactured andtested in accordance with this specification. This certificationshall be furnished at the time of shipment.8.2 When test reports are requested by the purchaser, themanufacturer shall report the results of tests required by thisspecification as well as any ad
49、ditional tests required by thepurchaser.9. Marking9.1 Quality of MarkingThe marking shall be applied tothe pipe in such a manner that it remains legible (easily read)after installation and inspection. It shall be spaced at intervalsof not more than 10 ft. (3.0 m).9.2 MarkingsEach length of pipe in compliance with thisspecification shall be clearly marked by the manufacturer withthe following information: this designation, (ASTM F2805),FIG. 2 Typical End ConnectionTABLE 1 Inner Sheath Layer Wall Thickness Range and Outside
