ASTM F1970-2012e1 Standard Specification for Special Engineered Fittings Appurtenances or Valves for use in Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl Chloride) (CPVC) .pdf
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1、Designation: F1970 121An American National StandardStandard Specification forSpecial Engineered Fittings, Appurtenances or Valves foruse in Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (VinylChloride) (CPVC) Systems1This standard is issued under the fixed designation F1970; the number immediately
2、 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.1NOTESection 2 was edit
3、orially updated in August 2013.1. Scope*1.1 This specification covers fittings, appurtenances andvalves which are to be used with pipe and tubing complyingwith Specifications D1785, D2241, D2846/D2846M, F441/F441M or F442/F442M, or other piping as specified by thefittings manufacturer. These product
4、s, such as unions, flangesor valves, are not included in the scope of existing ASTMspecifications. This specification includes minimum require-ments for testing, materials, dimensions, workmanship,marking, and in-plant quality control.1.2 Fittings or appurtenances covered by this specificationare ge
5、nerally either molded, fabricated, or assembled frommolded or machined components. The materials used incomponents include rigid thermoplastics, thermoplasticelastomers, elastomerics, and metals. The body or main portionof the fitting, appurtenance or valve is typically PVC, CPVC,PE or PA (nylon). A
6、ll products covered by this standard areintended to be used in PVC or CPVC plastic piping systems, oras a transition from these to metal systems.1.3 The application of these products to gas service isbeyond the scope of this specification.1.4 The products covered by this specification are intendedfo
7、r use with the distribution of pressurized liquids only, whichare chemically compatible with the piping materials. Due toinherent hazards associated with testing components and sys-tems with compressed air or other compressed gases somemanufacturers do not allow pneumatic testing of their products.C
8、onsult with specific product/component manufacturers fortheir specific testing procedures prior to pneumatic testing.NOTE 1Warning: Pressurized (compressed) air or other compressedgases contain large amounts of stored energy which present serious safetywhich present serious safety hazards should a s
9、ystem fail for any reason.1.5 Fittings which rely on heat fusion welding for connec-tion to the piping system are outside the scope of thisspecification.1.6 Check valves (including foot valves) covered by thisspecification shall not be considered backflow preventiondevices and shall not be used for
10、the protection of a potablewater supply. For definitions and requirements of backflowprevention devices, consult model plumbing codes andASSE.21.7 Due to the complex and installation-specific concernssurrounding chemical resistance and corrosion, this specifica-tion does not address the compatibilit
11、y of the products with allpossible end-use environments. Additional testing specific tothe end-use environment is recommended if the system isconveying liquids other than potable water.1.8 The values stated in inch-pound units are to be regardedas the standard. The SI units given in parentheses are
12、given forinformation only.1.9 The following safety caveat applies only to the testmethods and in-plant quality control portions, section of thisspecification: This standard does not purport to address all ofthe safety concerns, if any, associated with its use. It is theresponsibility of the user of
13、this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3D1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1599 Test Method for Resistance
14、 to Short-Time HydraulicPressure of Plastic Pipe, Tubing, and Fittings1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.10Current edition approved Nov. 1, 2012. Published December 2012. Originallyapproved
15、 in 1999. Last previous edition approved in 2005 as F197005. DOI:10.1520/F1970-12.2American Society of Sanitary Engineering, 28901 Clemens Rd., Suite 100,Westlake, OH 44145.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For A
16、nnual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D1600 Ter
17、minology forAbbreviated Terms Relating to Plas-ticsD1784 Specification for Rigid Poly(Vinyl Chloride) (PVC)Compounds and Chlorinated Poly(Vinyl Chloride)(CPVC) CompoundsD1785 Specification for Poly(Vinyl Chloride) (PVC) PlasticPipe, Schedules 40, 80, and 120D1898 Practice for Sampling of Plastics (W
18、ithdrawn 1998)4D2000 Classification System for Rubber Products in Auto-motive ApplicationsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2241 Specification for Poly(Vinyl Chloride) (PVC)Pressure-Rated Pipe (SDR Series)D2466 Specification for Poly(Vinyl Chloride) (PV
19、C) PlasticPipe Fittings, Schedule 40D2467 Specification for Poly(Vinyl Chloride) (PVC) PlasticPipe Fittings, Schedule 80D2846/D2846M Specification for Chlorinated Poly(VinylChloride) (CPVC) Plastic Hot- and Cold-Water Distribu-tion SystemsF412 Terminology Relating to Plastic Piping SystemsF438 Speci
20、fication for Socket-Type Chlorinated Poly(VinylChloride) (CPVC) Plastic Pipe Fittings, Schedule 40F439 Specification for Chlorinated Poly (Vinyl Chloride)(CPVC) Plastic Pipe Fittings, Schedule 80F441/F441M Specification for Chlorinated Poly(Vinyl Chlo-ride) (CPVC) Plastic Pipe, Schedules 40 and 80F4
21、42/F442M Specification for Chlorinated Poly(Vinyl Chlo-ride) (CPVC) Plastic Pipe (SDRPR)F477 Specification for Elastomeric Seals (Gaskets) for Join-ing Plastic PipeF1498 Specification for Taper Pipe Threads 60 for Thermo-plastic Pipe and Fittings2.2 ASME Standards:B1.20.1 Pipe Threads, General Purpo
22、se (Inch)5B16.5 Pipe Flanges and Flanged Fittings52.3 NSF Standards:NSF 14 Plastics Piping Components and Related Materials6NSF 61 Drinking Water System Components - Health Ef-fects62.4 ISA Standard:ISA S75.02 Control Valve Capacity Test Procedure72.5 ASQ Standard:ANSI/ASQ Z1.4 Sampling Procedures a
23、nd Tables for In-spection by Attributes83. Terminology3.1 GeneralDefinitions are in accordance with the Defi-nitions in F412 and abbreviations are in accordance withD1600 unless otherwise specified.3.2 Definitions of Terms Specific to This Standard:3.2.1 activation pressurethe activation pressure of
24、 a checkvalve is that inlet pressure, exceeding the outlet pressure,required to open the check valve and allow water to flow.3.2.2 appurtenancesaccessories of a plastic piping systemdesigned for special applications or end-uses. Appurtenancesmay include, but are not limited to pipes, fittings, valve
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