ASTM F1973-2008 Standard Specification for Factory Assembled Anodeless Risers and Transition Fittings in Polyethylene (PE) and Polyamide 11 (PA11) and Polyamide 12 (PA12) Fuel Gas .pdf
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1、Designation: F 1973 08An American National StandardStandard Specification forFactory Assembled Anodeless Risers and TransitionFittings in Polyethylene (PE) and Polyamide 11 (PA11) andPolyamide 12 (PA12) Fuel Gas Distribution Systems1This standard is issued under the fixed designation F 1973; the num
2、ber immediately following 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 () indicates an editorial change since the last revision or reapproval.1. Scope
3、*1.1 This specification 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) and Polyamide 12 (PA12), insizes through NPS 6, gas distribution systems.1.2 Th
4、e test methods described are not intended to beroutine quality control tests.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 Thro
5、ughout this specification footnotes are provided forinformational purposes and shall not be considered as require-ments of this specification.2. Referenced Documents2.1 ASTM Standards:2A 53/A 53M Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and SeamlessA 513 Specification
6、 for Electric-Resistance-Welded Carbonand Alloy Steel Mechanical TubingD 638 Test Method for Tensile Properties of PlasticsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 2513 Specification for Thermoplastic Gas Pressure Pipe,Tubing, and FittingsE 515 Test Method for Leaks Using Bubble
7、 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 Part19232.3 ANSI Standards:ANSI B 31.8 Gas Transmission and Distribution PipingSystems4
8、ANSI/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 Pipelines and RelatedFacilities62.6 UL Standard:UL 360 Flexible Metal Hose72.7 PPI Standard:PPI
9、 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 used in this specificationis in accordance with ANSI B31.8 or the United States CFR 49
10、Part 192, unless otherwise indicated.3.1.1 The term “pipe” used herein refers to both “pipe” and“tubing” unless specifically stated otherwise.1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.Cu
11、rrent edition approved July 1, 2008. Published July 2008. Originally approvedin 1999. Last previous edition approved in 2005 as F 197305.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume i
12、nformation, 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 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.5
13、Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990, http:/www.asme.org.6Available from American Petroleum Institute (API), 1220 L. St., NW, Wash-ington, DC 20005-4070, http:/www.api.org.7Available from Underwriters
14、 Laboratories (UL), 333 Pfingsten Rd., North-brook, IL 60062-2096, http:/.8Available from Plastics Pipe Institute (PPI), 105 Decker Court, Suite 825,Irving, TX 75062, http:/www.plasticpipe.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr H
15、arbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.2 The term “gas” used herein refers to any fuel gasunless specifically stated otherwise.3.2 DefinitionsDefinitions are in accordance with Defini-tions F 412 unless otherwise specified. Abbreviations are inaccordance with A
16、bbreviations D 1600 unless otherwise speci-fied.3.2.1 anodeless flex riser casinga flexible, 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 fit
17、ting which isdesigned to transport gas from an underground polyethylene orpolyamide 11 or polyamide 12 service line to above-groundsteel piping. In an anodeless riser, the polyethylene or polya-mide 11 or polyamide 12 pipe is always the gas carrier, at least,in the below ground section.3.2.3 anodele
18、ss riser, flex designan anodeless riser wherethe rise leg is a transition fitting which is fabricated to ananodeless 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 se
19、t loads from being transmitted to the thermoplasticservice line.3.2.4 anodeless riser nipplethe metallic, aboveground,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
20、.3.2.6 anodeless riser, rigid, straight and prebentan an-odeless riser which is produced straight or factory prebent,usually 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 t
21、ransition joint which provides forpressure tightness and resistance to end loads sufficient tocause no less than 25 % elongation of the PE, PA11 or PA12piping as described in this standard.3.2.9 Category 3a transition joint which provides forpressure tightness and resistance to end loads greater tha
22、n themaximum thermal stress that would be produced by a tempera-ture change of 100F (55C).3.2.10 grade level markinga marking, tape or label ap-plied to the riser to identify the point at which the transitionfrom PE, PA11 or PA12 gas carrier to metallic gas carrieroccurs. This marking assists the in
23、staller in determining thegrade level of the installation.3.2.11 insert stiffenera rigid, non-split, solid wall tubewhich is inserted into PE, PA11 or PA12 piping to supportcompression loads in the area of the transition joint.3.2.12 jointthe location at which two or more pieces ofpipe or a pipe and
24、 a fitting are connected.3.2.13 MAOPthe maximum allowable operating pressureof the fuel gas piping system, in psig, 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
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