ASTM F1973-2005 Standard Specification for Factory Assembled Anodeless Risers and Transition Fittings in Polyethylene (PE) and Polyamide 11 (PA11) Fuel Gas Distribution Systems《聚乙烯.pdf
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1、Designation: F 1973 05An American National StandardStandard Specification forFactory Assembled Anodeless Risers and TransitionFittings in Polyethylene (PE) and Polyamide 11 (PA11) FuelGas Distribution Systems1This standard is issued under the fixed designation F 1973; the number immediately followin
2、g the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification
3、covers requirements and test methodsfor the qualification of factory assembled anodeless risers andtransition fittings, for use in polyethylene (PE), in sizes throughNPS 8, and Polyamide 11 (PA11), in sizes through NPS 6, gasdistribution systems.1.2 The test methods described are not intended to ber
4、outine quality control tests.1.3 The values given in parentheses are for informationalpurposes only.1.4 Throughout this specification footnotes are provided forinformational purposes and shall not be considered as require-ments of this specification.2. Referenced Documents2.1 ASTM Standards:2A53 Spe
5、cification for Pipe, Steel, Black and Hot-Dipped,Zinc-Coated, Welded and SeamlessA 513 Specification for Electric-Resistance-Welded Carbonand Alloy Steel Mechanical TubingD 638 Test Method for Tensile Property of PlasticsD 1600 Abbreviations of Terms Relating to PlasticsD 2513 Specification for Ther
6、moplastic Gas Pressure Pipe,Tubing and FittingsE 515 Test Method for Leaks Using Bubble Emission Tech-niquesF 412 Terminology Relating to Plastic Piping SystemsF 1588 Test Method for Constant Tensile Load Joint Test(CTLJT)2.2 US Government Document:United States Code of Federal Regulations Title 49
7、Part19232.3 ANSI Standards:ANSI B 31.8 Gas Transmission and Distribution PipingSystems4ANSI/ASME B1.20.1 Pipe Threads, General Purpose(inch)4ANSI B 16.5 Steel Pipe Flanges, Flanged Fittings42.4 ASME Standard:ASME Boiler and Pressure Vessel Code52.5 API Standard:API 1104 Standard for Welding Pipeline
8、s and RelatedFacilities62.6 UL Standard:UL 360 Flexible Metal Hose72.7 PPI Standard:PPI TR-4 PPI Listing of Hydrostatic Design Bases (HDB),Pressure Design Bases (PDB) and Minimum RequiredStrength (MRS) Ratings for Thermoplastic Piping Mate-rials or Pipe83. Terminology3.1 The gas industry terminology
9、 used in this specificationis in accordance with ANSI B31.8 or the United States CFR 49Part 192, unless otherwise indicated.3.1.1 The term “pipe” used herein refers to both “pipe” and“tubing” unless specifically stated otherwise.3.1.2 The term “gas” used herein refers to any fuel gasunless specifica
10、lly stated otherwise.3.2 DefinitionsDefinitions are in accordance with Defini-tions F 412 unless otherwise specified. Abbreviations are inaccordance with Abbreviations D 1600 unless otherwise speci-fied.1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and
11、is the direct responsibility of Subcommittee F17.60 on Gas.Current edition approved Nov. 1, 2005. Published November 2005. Originallyapproved in 1999. Last previous edition approved in 2002 as F197302.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Servi
12、ce at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Superintendent of Documents, US Government Printing Office,Washington, DC 20402.4Available from American National Standards Institute (ANSI), 25
13、 W. 43rd St.,4th Floor, New York, NY 10036.5Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990.6Available fromAmerican Petroleum Institute, 1220 L St., NW, Washington, DC20005.7Available from Underwriters Laborator
14、ies, 333 Pfingsten Rd., Northbrook, IL60062.8Available from Plastics Pipe Institute, Inc., 1825 Connecticut Ave., NW, Suite680, Washington, DC 20009.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.1 anodeless flex riser casinga f
15、lexible, plastic coated,metallic, non-gas carrying, protective outer sleeve portion of ananodeless riser which is sometimes selected as an alternate torigid riser casings.3.2.2 anodeless risera type of transition fitting which isdesigned to transport gas from an underground polyethylene orpolyamide
16、11 service line to above-ground steel piping. In ananodeless riser, the polyethylene or polyamide 11 pipe isalways the gas carrier, at least, in the below ground section.3.2.3 anodeless riser, flex designan anodeless riser wherethe rise leg is a transition fitting which is fabricated to ananodeless
17、flex riser casing which is field bent to form the baseleg.3.2.3.1 DiscussionAnodeless flex risers usually require ariser bracket attached to a rigid supporting member to avoidmeter set loads from being transmitted to the polyethyleneservice line.3.2.4 anodeless riser nipplethe metallic, aboveground,
18、gas carrying pipe or fitting portion of an anodeless riser.3.2.5 anodeless riser rigid riser casingthe metallic, non-gas carrying protective outer sleeve portion of an anodelessriser.3.2.6 anodeless riser, rigid, straight and prebentan an-odeless riser which is produced straight or factory prebent,u
19、sually 90, thus defining rise leg and base leg dimensions.3.2.7 base legthe steel horizontal portion of an anodelessriser measured from the centerline of vertical.3.2.8 Category 1a transition joint which provides forpressure tightness and resistance to end loads sufficient tocause no less than 25 %
20、elongation of the PE or PA11 piping asdescribed in this standard.3.2.9 Category 3a transition joint which provides forpressure tightness and resistance to end loads greater than themaximum thermal stress that would be produced by a tempera-ture change of 100F (55C).3.2.10 grade level markinga markin
21、g, tape or label ap-plied to the riser to identify the point at which the transitionfrom PE or PA11 gas carrier to metallic gas carrier occurs. Thismarking assists the installer in determining the grade level ofthe installation.3.2.11 insert stiffenera rigid, non-split, solid wall tubewhich is inser
22、ted into the polyethylene or polymide 11 pipingto support compression loads in the area of the transition joint.3.2.12 jointthe location at which two or more pieces ofpipe or a pipe and a fitting are connected.3.2.13 MAOPthe maximum allowable operating pressureof the fuel gas piping system, in psig,
23、 as determined inaccordance with US DOT CFR, Title 49, Part 192.121 and asrepresented in the following:MAOP 5 P 5 2 3 S /R1!3 fD(1)where:S = The Thermoplastic materials HDB as published inthe Plastics Pipe Institute PPI TR 4 publication,R = The pipes dimension ratio determined by dividing thepipes s
24、pecified nominal outside diameter by the pipesspecified nominal wall thickness, andfD= the design (derating) factor for thermoplastic fuel gaspiping as set by the authority having jurisdiction. Inthe United States the design factor is cited in CFRTitle 49 Part 192.121.3.2.14 rise legthe vertical por
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