1、Designation:F 492 95An American National StandardStandard Specification forPropylene and Polypropylene(PP)Plastic-Lined FerrousMetal Pipe and Fittings1This standard is issued under the fixed designation F 492;the number immediately following the designation indicates the year oforiginal adoption or,
2、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 covers factory-made propylene andpolypropylene(PP)plastic-lined fer
3、rous metal pipe and fit-tings,primarily intended for conveying corrosive liquids andgases.Requirements for materials,workmanship,dimensions,design,construction,working pressures and temperatures,testmethods,and markings are included.NOTE1In this specification,propylene plastics cover those materials
4、defined as both polypropylene plastics and propylene plastics in Defini-tions D 883.Both materials are identified as“PP”on the product.Notethat this is at variance with Abbreviations D 1600,where PP is theabbreviation for polypropylene.NOTE2This specification does not include products coated with PP
5、nor does it define the suitability of PP-lined components in chemicalenvironments.1.2 The ferrous piping products shall meet the requirementsof the relevant specifications listed in 1.2.1.Nominal sizesfrom12through 12 in.in Class 125,150,and 300-psi arecovered.NOTE3The PP sealing faces may prevent a
6、chievement of the fullpressure rating of the ferrous housings.For pressure limitations,themanufacturer should be consulted.NOTE4Flanged fittings are not available in sizes12and34.1.2.1 For Ferrous Pipe:Title of SpecificationASTMDesignationPipe,Steel,Black and Hot-Dipped,Zinc-Coated,Welded andSeamles
7、s(Types E and S)A 53Seamless Carbon Steel Pipe for High-Temperature ServiceA 106Electric-Resistance Welded Steel PipeA 135Electric-Welded Low-Carbon Steel Pipe for the ChemicalIndustryA 587Seamless and Welded Austenitic Stainless Steel PipeA 312Electric-Resistance Welded Carbon and Alloy Steel Mecha
8、nicalTubingA 5131.2.2 For Ferrous Flanges:Title of SpecificationASTMDesignationGray Iron CastingsA 48Forgings,Carbon Steel,for Piping ComponentsA 105Gray Iron Castings for Valves,Flanges,and Pipe FittingsA 126Title of SpecificationASTMDesignationForgings,Carbon Steel,for General-Purpose PipingA 181F
9、orged or Rolled Alloy-Steel Pipe Flanges,Forged Fittings,and Valves and Parts for High-Temperature ServiceA 182Carbon-Steel Castings Suitable for Fusion Welding for High-Temperature Service(Grade WCB).A 216Gray Iron Castings for Pressure-Containing Parts for Tempera-tures Up to 650F(345C)A 278Ferrit
10、ic Ductile Iron Pressure-Retaining Castings for Use atElevated Temperatures(60-40-18)A 395Ductile Iron Castings(60-40-18,65-45-12,80-55-06)A 5361.2.3 For Ferrous Fittings:Title of SpecificationASTMDesignationGray Iron CastingsA 48Forgings,Carbon Steel,for Piping ComponentsA 105Gray Iron Castings for
11、 Valves,Flanges,and Pipe FittingsA 126Forgings,Carbon Steel,for General-Purpose PipingA 181Carbon Steel Castings Suitable for Fusion Welding for High-Temperature Service(Grade WCB)A 216Piping Fittings of Wrought Carbon Steel and Alloy for Moderateand Elevated Temperatures Steel Welding FittingsA 234
12、Gray Iron Castings for Pressure-Containing Parts for Tempera-tures up to 650F(345C)A 278Austenitic Steel Castings for High-Temperature ServiceA 351Alloy Steel Castings Specially Heat-Treated for Pressure-Containing Parts Suitable for High-Temperature ServiceA 389Ductile Iron Castings(60-40-18,64-45-
13、12,80-55-06)A 536Ferritic Ductile Iron Pressure-Retaining Castings for Use atElevated Temperatures(60-40-18)A 395Wrought Austenitic Stainless Steel Piping FittingsA 4031.3 The PP-lined flanged pipe and fitting assemblies arelimited to use from 18 to 107C(0 to 225F).For use below18C(0F)consult the ma
14、nufacturer.Use in specific aggres-sive environments may alter the above temperature range.Theoperating temperature limits shall be established by mutualagreement between the purchaser and the seller.1.4 The values stated in inch-pound units are to be regardedas the standard.2.Referenced Documents2.1
15、 ASTM Standards:D 1238 Test Method for Flow Rates of Thermoplastics byExtrusion Plastometer21This specification is under the jurisdiction ofASTM Committee F-17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.11 onComposite.Current edition approved Sept.10,1995.Published
16、 November 1995.Originallypublished as F 492 77.Last previous edition F 492 93a.2Annual Book of ASTM Standards,Vol 08.01.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.D 1600 Terminology for Abbreviated Terms Relating toPlastics2D 2146 Specification for Propylene Plastic Molding andExtrusion Materials3F 412 Terminology Relating to Plastic Piping Systems42.2ANSI Standards:B 16.1 Cast Iron Pipe Flanges and Flanged Fittings5B 16.5 Steel
