1、Designation: F 437 06An American National StandardStandard Specification forThreaded Chlorinated Poly(Vinyl Chloride) (CPVC) PlasticPipe Fittings, Schedule 801This standard is issued under the fixed designation F 437; the number immediately following the designation indicates the year oforiginal ado
2、ption 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.This standard has been approved for use by agencies of the Department of Defense.1
3、. Scope1.1 This specification covers chlorinated poly(vinyl chlo-ride) (CPVC) threaded Schedule 80 pipe fittings. Included arerequirements for materials, workmanship, dimensions, andburst pressure.NOTE 1The CPVC fittings covered by this specification were coveredpreviously in Specification D 2464.1.
4、2 The products covered by this specification are intendedfor 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 somemanuf
5、acturers do not allow pneumatic testing of their products.Consult with specific product/component manufacturers fortheir specific testing procedures prior to pneumatic testing.NOTE 2Pressurized (compressed) air or other compressed gasescontain large amounts of stored energy which present serious saf
6、teyhazards should a system fail for any reason.1.3 The text of this specification references notes, footnotes,and appendixes which provide explanatory material. Thesenotes and footnotes (excluding those in tables and figures) shallnot be considered as requirements of the specification.1.4 The values
7、 stated in inch-pound units are to be regardedas the standard. The values in parentheses are given forinformation only.1.5 The following safety hazards caveat pertains only to thetest method portion, Section 8, of this specification: Thisstandard does not purport to address all of the safety concern
8、s,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D 618 Practice for Conditioning Plastics for
9、TestingD 1599 Test Method for Resistance to Short-Time Hydrau-lic Pressure of Plastic Pipe, Tubing, and FittingsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 1784 Specification for Rigid Poly(Vinyl Chloride) (PVC)Compounds and Chlorinated Poly(Vinyl Chloride)(CPVC) CompoundsD 2122 Te
10、st Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD 2749 Symbols for Dimensions of Plastic Pipe FittingsF 412 Terminology Relating to Plastic Piping SystemsF 1498 Specification for Taper Pipe Threads 60 for Ther-moplastic Pipe and Fittings2.2 Federal Standard:Fed Std. No. 123 M
11、arking for Shipment (Civil Agencies)32.3 Military Standard:MIL-STD-129 Marking for Shipment and Storage32.4 NSF Standard:Standard No. 14 for Plastic Piping Components and RelatedMaterials43. Terminology3.1 Definitions:3.1.1 Definitions are in accordance with Terminology F 412and abbreviations are in
12、 accordance with Terminology D 1600,unless otherwise indicated. The abbreviation for chlorinatedpoly(vinyl chloride) is CPVC.1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings.Current editio
13、n approved March 1, 2006. Published March 2006. Originallyapproved in 1974. Last previous edition approved in 1999 as F 437 99.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information
14、, refer to the standards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.4Available from NSF International, P.O. Box 1468, Ann Arbor, MI 48106.1Copyright ASTM International, 10
15、0 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. Classification4.1 GeneralThis specification covers threaded Schedule80 CPVC pipe fittings, intended for use with threaded Iron PipeSize (IPS) outside-diameter plastic pipe.4.1.1 Fittings covered by this specificatio
16、n are normallymolded. In-line fittings, such as couplings, unions, bushings,caps, nipples, etc., shall be molded or machined from extrudedstock.4.1.2 Fittings fabricated by backwelding are not included inthis specification.5. Materials and Manufacture5.1 This specification covers CPVC pipe fittings
17、made fromcompounds meeting the requirements of Class 23447 asdefined in Specification D 1784.NOTE 3Mechanical strength, heat resistance, flammability, andchemical resistance requirements are covered in Specification D 1784.5.2 Rework MaterialThe manufacturers shall use onlytheir own clean rework fit
18、ting material and the fittings pro-duced shall meet all the requirements of this specification.6. Requirements Requirements6.1 Dimensions and Tolerances:6.1.1 The dimensions and tolerances of the fittings shall beas shown in Table 1 and Table 2 when measured in accordancewith Test Method D 2122. Min
19、imum dimensions have zeronegative tolerances. Bushings shall have thread lengths appli-cable to the corresponding sizes. Counterbore, which is op-tional, is not shown in Table 1, and is not included in thecenter-to-end or end-to-end dimensions.6.1.2 Fittings Not IllustratedAll fittings, whether illu
20、s-trated in Table 1 and Table 2 or not, shall have wall thicknessesand thread dimensions conforming to 6.1 and 6.2.6.2 ThreadsFor all fittings having taper pipe threads,threads shall conform to Specification F 1498 and be gaged inaccordance with 8.4.6.3 Burst Pressure:6.3.1 The minimum burst strengt
21、h of the fittings shall be notless than that calculated for the size and wall thickness of thepipe with which it is to be used, when calculated from thefollowing equation:S 5 P Do2 t!/2 t (1)where:S = hoop stress, psi (or MPa),P = internal pressure, psi (or MPa),Do= average outside diameter, in. (or
22、 mm), andt = minimum wall thickness, in. (or mm).Fittings tested in accordance with 8.5 shall withstand theminimum burst pressure shown in Table 3.6.3.2 Pressures shown are minimum burst pressures and donot imply rated working pressures. The burst pressure shall beused only as an indication of quali
23、ty.7. Workmanship, Finish, and Appearance7.1 The fittings shall be homogeneous throughout and freeof cracks, holes, foreign inclusions, or other defects. Thefittings shall be as uniform as commercially practicable incolor, opacity, density, and other physical properties.TABLE 1 Dimensions of 90 Ells
24、, Tees, Crosses, 45 Elbows and Couplings (Straight Sizes), in. (mm)A,BNominalPipeSizeCenter to ThreadEnd, 90 Elbows,Tees, Crosses,H,minLength ofThread,T,minCenter to ThreadEnd, 45 Elbow,CK,minInsideDiameterof Fitting,D,minNominal WallThickness,F,minOutsideDiameterof Hub,M,minThread End toThread End
25、ofCoupling,L,min14 0.812 (20.62) 0.50 (12.70) 0.688 (17.48) 0.258 (6.55) 0.135 (3.43) 0.840 (21.34) 1.063 (27.00)38 0.938 (23.83) 0.50 (12.70) 0.750 (19.05) 0.379 (9.63) 0.144 (3.66) 1.000 (25.40) 1.063 (27.00)12 1.125 (28.58) 0.64 (16.26) 0.750 (19.05) 0.502 (12.75) 0.198 (5.03) 1.280 (32.51) 1.344
26、 (34.14)34 1.250 (31.75) 0.65 (16.51) 1.000 (25.40) 0.698 (17.73) 0.207 (5.25) 1.500 (38.10) 1.500 (38.10)1 1.500 (28.10) 0.81 (20.51) 1.125 (28.58) 0.911 (23.14) 0.225 (5.72) 1.810 (45.97) 1.688 (42.88)114 1.750 (44.45) 0.85 (21.59) 1.313 (23.35) 1.227 (31.17) 0.261 (6.63) 2.200 (55.88) 1.750 (44.4
27、5)112 1.938 (49.23) 0.85 (21.59) 1.438 (36.83) 1.446 (36.73) 0.270 (6.85) 2.500 (63.50) 2.000 (50.80)2 2.250 (57.15) 0.90 (22.86) 1.625 (41.28) 1.881 (47.78) 0.297 (7.54) 3.000 (76.20) 2.063 (52.40)212 2.688 (68.28) 1.21 (30.73) 1.938 (49.23) 2.250 (57.15) 0.315 (8.00) 3.560 (90.42) 2.625 (66.68)3 3
28、.063 (77.80) 1.30 (33.02) 2.125 (53.98) 2.820 (71.63) 0.405 (10.29) 4.300 (109.22) 2.750 (69.85)4 3.625 (92.08) 1.38 (35.05) 2.625 (66.68) 3.737 (94.92) 0.450 (11.43) 5.430 (137.92) 3.000 (76.20)6 5.125 (130.18) 1.50 (38.10) 3.250 (82.55) 5.646 (143.41) 0.504 (12.80) 7.625 (193.68) 3.250 (82.55)AThe
29、 sketches and designs of fittings shown are illustrative only.BSymbols for dimensions are per Symbols D 2749.CThis dimension locates the end of the fitting.F4370628. Test Methods8.1 ConditioningCondition the test specimens at 73.4 63.6F (23 6 2C) and 50 6 5 % relative humidity for not lessthan 40 h
30、prior to test in accordance with Procedure A ofPractice D 618, for those tests where conditioning is required.8.2 Test ConditionsConduct tests in the Standard Labora-tory Atmosphere of 73.4 6 3.6F (23 6 2C) and 50 6 5%relative humidity, unless otherwise specified in the test meth-ods or in this spec
31、ification.8.3 SamplingA sufficient quantity of fittings as agreedupon between the seller and the purchaser shall be selected atrandom from each lot or shipment and tested to determine thatthe basic design is in conformance with this specification.NOTE 4For individual orders or specifications where s
32、upplementaltests are required, only those tests and numbers of tests specifically agreedupon between the purchaser and seller need be conducted.8.4 ThreadsAll taper pipe threads shall be gaged inaccordance with Specification F 1498.8.5 Burst PressureDetermine the minimum burst pressurewith at least
33、five specimens in accordance with Test MethodD 1599. Join the fittings to the pipe sufficiently strong and insuch a manner that no failures shall occur in the assembly at apressure less than the pressure requirement given in Table 3.The time of testing each assembly shall be between 60 and 70s.9. Re
34、test and Rejection9.1 If the results of any test(s) do not meet the requirementsof this specification, the tests(s) shall be conducted again onlyby agreement between the purchaser and seller. Under suchagreement, minimum requirements shall not be lowered,changed, or modified, nor shall specification
35、 limits be changed.If upon retest, failure occurs, the quantity of product repre-sented by the test(s) does not meet the requirements of thisspecification.10. Product Marking10.1 Quality of MarkingThe markings shall be applied tothe fittings in such a manner that they remain legible undernormal hand
36、ling and installation practices.10.2 Content of Marking:10.2.1 Fittings shall be marked with the following:10.2.1.1 Manufacturers name or trademark,10.2.1.2 Material designation CPVC for CPVC 23447,10.2.1.3 The seal or mark of the laboratory making theevaluation for potable water contact,10.2.1.4 Si
37、ze, and10.2.1.5 This designation “F 437, with which the fittingcomplies.TABLE 2 Dimensions of Plugs and Caps, in.A ,BNominal PipeSizeLength of MaleThread, S,minLength of FemaleThread, T,minWidth ofFlats,BQ,minNominal WallThickness, F,minHeight ofHead, R,minCap Height,W,minOutside Diameterof Hub, M,m
38、in14 0.44 (11.18) 0.50 (12.70) 0.625 (15.88) 0.135 (3.43) 0.188 (4.78) 0.688 (17.48) 0.840 (21.34)38 0.44 (11.18) 0.50 (12.70) 0.750 (19.05) 0.144 (3.66) 0.188 (4.78) 0.688 (17.48) 1.000 (25.40)12 0.53 (13.46) 0.64 (16.26) 0.938 (23.83) 0.198 (5.03) 0.188 (4.73) 0.875 (22.23) 1.280 (32.51)34 0.55 (1
39、3.92) 0.65 (16.51) 1.125 (28.53) 0.207 (5.26) 0.219 (5.56) 1.000 (25.40) 1.450 (35.03)1 0.68 (17.27) 0.81 (20.57) 1.375 (34.93) 0.225 (5.72) 0.219 (5.56) 1.188 (30.18) 1.810 (45.97)114 0.71 (18.03) 0.85 (21.59) 1.750 (44.45) 0.261 (6.63) 0.281 (7.14) 1.250 (31.75) 2.200 (55.88)112 0.72 (18.29) 0.85
40、(21.59) 1.875 (47.63) 0.270 (6.85) 0.313 (7.95) 1.250 (31.75) 2.450 (62.23)2 0.76 (19.30) 0.90 (22.86) 1.875 (47.63) 0.297 (7.54) 0.313 (7.95) 1.375 (34.93) 3.000 (76.20)212 1.14 (28.96) 1.21 (30.25) 1.875 (47.63) 0.369 (8.00) 0.375 (9.53) 1.625 (41.28) 3.560 (90.42)3 1.20 (30.48) 1.30 (33.02) 2.000
41、 (50.80) 0.405 (10.29) 0.375 (9.53) 1.750 (49.45) 4.250 (107.98)4 1.30 (33.02) 1.38 (35.05) 2.000 (50.80) 0.450 (11.43) 0.375 (9.53) 2.000 (50.60) 5.350 (125.87)6 1.44 (36.58) 1.50 (35.10) 2.000 (50.80) 0.504 (12.80) 0.500 (12.10) 2.125 (53.98) 7.625 (193.68)AThe sketches and designs of fittings sho
42、wn are illustrative only.BSymbols for dimensions are per Symbols D 2749.CAt the manufacturers option the head of the plug shall be hexagonal, octagonal, square, or round.TABLE 3 Burst Pressure Requirements for Water at 73F (23C)for CPVC Threaded Pipe Fittings, Schedule 80Nominal Size, in.Min Burst S
43、trengthAClass 23447psi (MPa)14 3620 (24.96)38 2940 (20.27)12 2720 (18.75)34 2200 (15.17)1 2020 (13.93)114 1600 (11.44)112 1510 (10.41)2 1290 (8.89)212 1360 (9.38)3 1200 (8.27)4 1040 (7.17)6 890 (6.14)AThis table was calculated for Schedule 80 pipe using the ISO formula and astress level as follows:p
44、si MPaClass 23447 (Type IV Grade 1 (CPVC) 6400 44.1F43706310.3 Where the size of the fitting does not allow completemarking, omit identification marking in the following se-quence: size, material designation, F 437, manufacturers nameor trademark.10.4 Markings or symbols shall be molded, hot-stamped
45、, orapplied to fittings by any other suitable method, such asprinting.10.5 Where recessed marking is used, care shall be taken tosee that in no case marking causes cracks or reduces the wallthickness below the minimum specified.11. Quality Assurance11.1 When the product is marked with this designati
46、on,F 437, the manufacturer affirms that the product was manufac-tured, inspected, sampled, and tested in accordance with thisspecification and has been found to meet the requirements ofthis specification.SUPPLEMENTARY REQUIREMENTSGOVERNMENT/MILITARY PROCUREMENTThese requirements apply only to Federa
47、l/Military procurement, not domestic sales or transfers.S1. Responsibility for InspectionUnless otherwise speci-fied in the contract or purchase order, the producer is respon-sible for the performance of all inspection and test require-ments specified herein. The producer may use his own or anyother
48、 suitable facilities for the performance of the inspectionand test requirements specified herein, unless the purchaserdisapproves. The purchaser shall have the right to perform anyof the inspections and tests set forth in this specification wheresuch inspections are deemed necessary to ensure that m
49、aterialconforms to prescribed requirements.NOTE S1In U.S. Federal contracts, the contractor is responsible forinspection.S2. Packaging and Marking for U.S. Government Procure-ment:S2.1 PackagingUnless otherwise specified in the con-tract, the materials shall be packaged in accordance with thesuppliers standard practice in a manner ensuring arrival atdestination in satisfactory condition and which will be accept-able to the carrier at lowest rates. Containers and packing shallcomply with Uniform Freight Classification rules or
