1、Designation: F2207 06 (Reapproved 2013) An American National StandardStandard Specification forCured-in-Place Pipe Lining System for Rehabilitation ofMetallic Gas Pipe1This standard is issued under the fixed designation F2207; the number immediately following the designation indicates the year ofori
2、ginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers requirements and method oftesting fo
3、r materials, dimensions, hydrostatic burst strength,chemical resistance, adhesion strength and tensile strengthproperties for cured-in-place (CIP) pipe liners installed intoexisting metallic gas pipes,34 to 48 in. nominal pipe size, forrenewal purposes. The maximum allowable operating pressure(MAOP)
4、 of such renewed gas pipe shall not exceed a pressureof 300 psig (2060 kPa). The cured-in-place pipe liners coveredby this specification are intended for use in pipelines transport-ing natural gas, petroleum fuels (propane-air and propane-butane vapor mixtures), and manufactured and mixed gases,wher
5、e resistance to gas permeation, ground movement, internalcorrosion, leaking joints, pinholes, and chemical attack arerequired.1.2 The medium pressure (up to 100 psig) cured-in-placepipe liners (Section A) covered by this specification areintended for use in existing structurally sound or partiallyde
6、teriorated metallic gas pipe as defined in 3.2.10. The highpressure (over 100 psig up to 300 psig) cured-in-place pipeliners (Section B) covered by this specification are intended foruse only in existing structurally sound steel gas pipe as definedin 3.2.10. CIP liners are installed with limited exc
7、avation usingan inversion method (air or water) and are considered to be atrenchless pipeline rehabilitation technology. The inverted lineris bonded to the inside wall of the host pipe using a compatibleadhesive (usually an adhesive or polyurethane) in order toprevent gas migration between the host
8、pipe wall and the CIPliner and, also, to keep the liner from collapsing under its ownweight.1.2.1 Continued growth of external corrosion, if undetectedand unmitigated, could result in loss of the host pipe structuralintegrity to such an extent that the liner becomes the solepressure bearing element
9、in the rehabilitated pipeline structure.The CIP liner is not intended to be a stand-alone pipe and relieson the structural strength of the host pipe. The operator mustmaintain the structural integrity of the host pipe so that the linerdoes not become free standing.1.3 MPL CIP liners (Section A) can
10、be installed in partiallydeteriorated pipe as defined in 3.2.10. Even for low pressuregas distribution systems, which typically operate at less than 1psig, MPL CIP liners are not intended for use as a stand-alonegas carrier pipe but rely on the structural integrity of the hostpipe. Therefore, the sa
11、fe use of cured-in-place pipe liningtechnology for the rehabilitation of existing cast iron, steel, orother metallic gas piping systems, operating at pressures up to100 psig, is contingent on a technical assessment of theprojected operating condition of the pipe for the expected 30 to50 year life of
12、 the CIP liner. Cured-in-place pipe liners areintended to repair/rehabilitate structurally sound pipelineshaving relatively small, localized defects such as localizedcorrosion, welds that are weaker than required for service, orloose joints (cast iron pipe), where leaks might occur.1.3.1 HPL CIP lin
13、ers (Section B) are intended for use onlyin existing structurally sound steel gas pipe as defined in3.2.10. HPL CIP liners are not intended for use as a stand-alonegas carrier pipe but rely on the structural integrity of the hostpipe. Therefore, the safe use of cured-in-place pipe liningtechnology f
14、or the rehabilitation of existing steel gas pipingsystems, operating at pressures up to 300 psig, is contingent ona technical assessment of the projected operating condition ofthe pipe for the expected 30 to 50 year life of the CIP liner.1.4 The values stated in inch-pound units are to be regardedas
15、 standard. No other units of measurement are included in thisstandard.1.5 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 safety and health practices and determine the
16、 applica-bility of regulatory requirements prior to use.2. Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to Textiles1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.Current
17、edition approved Aug. 1, 2013. Published October 2013 Originallyapproved in 2002. Last previous edition approved in 2006 as F2207 06. DOI:10.1520/F2207-06R13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of A
18、STMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D543 Practices for Evaluating the Resistance of Plastics toChemical ReagentsD883 Terminol
19、ogy Relating to PlasticsD1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1763 Specification for Epoxy ResinsD2240 Test Method for Rubber PropertyDurometer Hard-nessD2837 Test Method for Obtaining Hydrost
20、atic Design Basisfor Thermoplastic Pipe Materials or Pressure Design Basisfor Thermoplastic Pipe ProductsD3167 Test Method for Floating Roller Peel Resistance ofAdhesivesD3892 Practice for Packaging/Packing of PlasticsD4848 Terminology Related to Force, Deformation andRelated Properties of TextilesD
21、4850 Terminology Relating to Fabrics and Fabric TestMethodsF412 Terminology Relating to Plastic Piping Systems2.2 Other Standards:CFR 49 Part 1923. Terminology3.1 GeneralDefinitions are in accordance with those setforth in Terminologies D123, D883, D4848, D4850, and F412.Abbreviations are in accorda
22、nce with Terminology D1600,unless otherwise indicated.3.2 Definitions of Terms Specific to This Standard:3.2.1 adhesive systemthe adhesive system is typically atwo-part adhesive or polyurethane consisting of a resin and ahardener. The flexible tubing, after wet-out, is inserted into thepipeline to b
23、e rehabilitated using an inversion method. Afterthe inversion is complete, the adhesive is cured using eitherambient or thermal processes.3.2.2 cleaned pipepipe whose inside wall, that which isbonded to the CIP pipe liner, has been cleaned down to baremetal and is free of tars, pipeline liquids, oil
24、s, corrosionby-products, and other materials that could impair the bondingof the liner to the pipe wall.3.2.3 compositethe composite is the combination of thecured adhesive system, the elastomer skin, and the jacket.3.2.4 elastomer skinthe elastomer skin is a membrane,typically made of polyurethane
25、or polyester, allowing for bothinversion of the liner during the installation process andpressure tight in-service operation. When the flexible tubing isinverted into the pipeline to be rehabilitated, the elastomer skinbecomes the inside surface of the newly rehabilitated pipeline,directly exposed t
26、o the gas being transported.3.2.5 expansion ratio tablea table of measured diametersof the flexible tubing at increments of pressure, supplied by themanufacturer. The expansion ratio is used to calculate thepressure required to fit the flexible tubing against the pipe walland to determine the applic
27、able range of pipe I.D. for a givendiameter flexible tubing.3.2.6 flexible tubingthe flexible tube is the tubing materialinverted into the host pipe and is used to carry and distributethe adhesive. For a two-component system, the flexible tubingconsists of a cylindrical jacket coated with an elastom
28、er skin.For a three-component system, it is the same as the elastomerskin.3.2.7 high-pressure liner (HPL)a CIP liner only intendedfor structurally sound steel pipe in sizes 4 in. and larger with anMAOP greater than 100 psig up to 300 psig. High pressureliners (HPL) are only intended for steel pipe t
29、hat has amaintained cathodic protection system with annual reads perlocal codes, such as CFR 49 Part 192, and other mandatedmaintenance, such as leak surveys. The PDB testing conductedon high pressure liners is intended for the extreme case if holesoccur in the steel pipe that are not detected by th
30、e cathodicprotection maintenance system. Corrosion monitoring per CFR49 Part 192 shall be conducted annually to track changes inrequired readings and confirm there is no active corrosion3.2.8 jacketthe jacket is a textile product that is manufac-tured into a cylindrical form. It is made of synthetic
31、 materials,typically polyester, and provides the tensile strength andflexibility necessary to resist the specified sustained pressurewhen installed in partially deteriorated pipe as defined in3.2.10.3.2.9 medium-pressure liner (MPL) a CIP liner intendedfor all types of structurally sound or partly d
32、eteriorated metalpipes and for all applicable sizes of pipe with an MAOP of 100psig or less. MPL liners are relatively flexible.3.2.10 partially deteriorated metallic pipepipe that haseither been weakened or is leaking because of localizedcorrosion, welds that are weaker than required for service,de
33、teriorated joints (cast iron), etc. Partially deteriorated pipecan support the soil and internal pressure throughout the designlife of the composite except at the relatively small local pointsidentified above.3.2.11 three-component systema CIP pipe lining systemcomprised of three separate components
34、, which are the elasto-mer skin, the jacket, and the adhesive.3.2.12 two-component systema CIP pipe lining systemcomprised of two separate components, which are the flexibletube and the adhesive.3.2.13 wet-outthe process of placing the adhesive systeminto the flexible tubing and uniformly distributi
35、ng it prior to theinversion process.4. Materials4.1 The materials shall consist of the flexible tubing, jacket,and the adhesive system. The combination of materials used inboth the flexible tubing and the adhesive system shall dependon the desired design characteristics of the composite. Allmaterial
36、s shall be compatible for natural gas service. BecauseCIP pipe liners are both multi-component and multi-materialsystems, it becomes necessary to specify minimum materialperformance requirements for the liner composite rather thanspecific material testing requirements for the individual com-ponents.
37、 These requirements are outlined in Section 5.F2207 06 (2013)24.1.1 Flexible TubingFor a two-component system, theflexible tubing consists of a jacket with an elastomer skin thatfunctions as a gas barrier. For a three-component system, theelastomer skin is the flexible tubing. The elastomer skin in
38、bothsystems is typically made of polyurethane or polyester. Theflexible tubing is fit tightly against the inner surface of theexisting pipe by diametrical expansion using air or waterpressure and bonded to the inner pipe wall with an adhesive.4.1.2 JacketThe jacket is made of polyester or othersynth
39、etic materials compatible with the application. The jacketprovides the necessary strength to the composite to meet therequired design characteristics, for example, resistance tointernal and external pressure, resistance to earth movement,and diametrical expandability.4.1.3 Elastomer SkinThe elastome
40、r skin holds the adhe-sive system inside the flexible tubing during the wet-out,inversion, and curing. During the inversion and curing, theelastomer skin holds the air, water, or steam pressure inside theflexible tubing. When the flexible tubing is inverted into theexisting pipe, the elastomer skin
41、becomes the inside surface ofthe lined pipe. Upon completion of the installation, theelastomer skin is directly exposed to the gas being transportedand forms a gas barrier. The elastomer skin shall have a highchemical resistance to the materials it is in contact with asdefined in 5.1.3. For two-comp
42、onent systems, the elastomerskin is extruded or otherwise placed on the outside of the jacketduring the manufacture of the flexible tubing.4.1.4 Adhesive SystemThe adhesive is a two-part systemcomposed of a resin and a hardener. The adhesive formulationcan be modified as necessary to meet the curing
43、 time, strength,and application requirements specified for the lining installa-tion. The cured adhesive system, in combination with theflexible tubing, forms the composite. Either ambient or thermalcuring of the adhesive system may be used.5. Requirements5.1 Jacket and Elastomer Skin (Pre-Installati
44、on):5.1.1 WorkmanshipBoth the jacket and the elastomer skinshall be free from defects such as tears, bubbles, cracks, andscratches that could cause the liner to not be able to holdinversion and expansion pressures and, therefore, fail duringinstallation. For two-component systems, the flexible tubin
45、gshall be rolled onto a reel designed to provide protection duringshipping and handling. For three-component systems, theelastomer skin shall be rolled onto reels designed to provideprotection during shipping and handling. The jacket may eitherbe rolled onto reels or folded into boxes.5.1.2 Dimensio
46、nsAn expansion ratio table, as defined in3.2.5, including nominal size and length, shall be attached toeach roll of flexible tubing or jacket and elastomer skin prior toshipment from the manufacturer. All material dimensions andphysical properties must at least meet the minimumspecifications, requir
47、ements, or tolerances assumed in estab-lishing the strength tests under Section 6.5.1.3 Chemical ResistanceThe jacket and the elastomerskin materials shall be compatible with the liquids listed inTable 1 and tested in accordance with Practice D543, PracticeA, Procedure I. Neither tensile strength no
48、r elongation of anyof the components shall change more than 20 %. Weight of thetest specimen after testing shall not have increased by morethan 14 % or decreased by more than 3 %. This test shall be aqualification test to be performed once for each class orpressure rating of installed pipe liner.NOT
49、E 1These tests are only an indication of what will happen as aresult of short-term exposure to these chemicals. For long-term results,additional testing is required.5.1.4 Elastomeric Peeling StrengthThe peeling strengthbetween the jacket and the elastomer skin shall meet or exceed7.0 lb/in. (1.2 kg/cm) when measured in accordance with TestMethod D3167.5.1.5 Physical PropertiesFor two-component systems, thedesign pressure of the flexible tubing shall be sufficient towithstand the required installation, testing, and operatingpressures and to form the require
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