1、Designation: D 5685 05An American National StandardStandard Specification for“Fiberglass” (Glass-Fiber-Reinforced Thermosetting-Resin)Pressure Pipe Fittings1This standard is issued under the fixed designation D 5685; the number immediately following the designation indicates the year oforiginal adop
2、tion 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. Scope*1.1 This specification covers “fiberglass” (glass-fiber-reinforced thermos
3、etting-resin) fittings for use with filamentwound or centrifugally cast fiberglass pipe, or both, in sizes 1in. through 24 in. for pipe manufactured to SpecificationD 2996 or D 2997, or both.1.2 The following safety hazard caveat pertains only to thetest method portion, Section 7, of this specificat
4、ion:1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE 1The t
5、erm “fiberglass pipe” as described in Section 3 of thisspecification applies to both reinforced thermosetting resin pipe (RTRP)and reinforced polymer mortar pipe (RPMP).NOTE 2For the purposes of this standard, ploymer does not includenatural polymers.NOTE 3There is no similar or equivalent ISO stand
6、ard.2. Referenced Documents2.1 ASTM Standards:2D 618 Practice for Conditioning Plastics for TestingD 883 Terminology Relating to PlasticsD 1598 Test Method for Time-To-Failure of Plastic PipeUnder Constant Internal PressureD 1599 Test Method for Resistance to Short-Time Hydrau-lic Failure Pressure o
7、f Plastic Pipe, Tubing, and FittingsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 2143 Test Method for Cyclic Pressure Strength of Rein-forced, Thermosetting Plastic PipeD 2310 Classification for Machine-Made Fiberglass (Glass-Fiber-Reinforced Thermosetting-Resin) PipeD 2992 Practice
8、 for Obtaining Hydrostatic or Pressure De-sign Basis for “Fiberglass” (Glass-Fiber-ReinforcedThermosetting-Resin) Pipe and FittingsD 2996 Specification for Filament Wound “Fiberglass”(Glass-Fiber-Reinforced-Thermosetting Resin) PipeD 2997 Specification for Centrifugally Cast “Fiberglass”(Glass-Fiber
9、-Reinforced-Thermosetting Resin) PipeD 3567 Practice for Determining Dimensions of “Fiber-glass” (Glass-Fiber-Reinforced Thermosetting Resin) Pipeand FittingsD 4024 Specification for Machine Made “Fiberglass”(Glass-Fiber-Reinforced Thermosetting Resin) FlangesF 412 Terminology Relating to Plastic Pi
10、ping SystemsF 477 Specification for Elastomeric Seals (Gaskets) forJoining Plastic Pipe2.2 ANSI Standard:B16.5 Steel Pipe Flanges, Flanged Valves and Fittings33. Terminology3.1 Definitions:3.1.1 GeneralDefinitions are in accordance with Termi-nology D 883 or F 412. Abbreviations are in accordance wi
11、thTerminology D 1600, unless otherwise indicated. The abbre-viation for fiberglass pipe is RTRP and the abbreviation forfiberglass fittings is RTRF.3.1.2 “fiberglass” pipetubular product containing glassfiber reinforcements embedded in or surrounded by curedthermosetting resin. The composite structu
12、re may containaggregate, granular or platelet fillers, thixotropic agents, pig-ments, or dyes. Thermoplastic or thermosetting liners orcoatings may be included.3.1.3 reinforced thermosetting resin pipefiberglass pipewithout aggregate (RTRP).3.1.4 reinforced polymer mortar pipefiberglass pipe withagg
13、regate (RPMP).1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.23 on ReinforcedPlastic Piping System and Chemical Equipment.Current edition approved Nov. 1, 2005. Published November 2005. Originallyapproved in 1995. L
14、ast previous edition approved in 2002 as D568502.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available f
15、rom American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.5 reinforced thermos
16、etting resin fittingfiberglass fit-ting without aggregate (RTRF).3.1.6 reinforced polymer mortar fittingfiberglass fittingwith aggregate (RPMF).4. Classification4.1 This specification covers fiberglass fittings defined bytype (method of manufacture), grade (general resin type), class(general liner t
17、ype), catagory (configuration of joining system),and pressure rating ( a single letter disignating the pressureclass and method of manufacture).4.2 Types:4.2.1 Type 1Filament-wound fittings manufactured bywinding continuous fibrous-glass strand roving or roving tape,either preimpregnated or impregna
18、ted during winding, onto amandrel, or a liner corresponding to the fitting shape.4.2.2 Type 2Compression molded fittings made by apply-ing external pressure and heat to a molding compound that isconfined within a closed mold.4.2.3 Type 3Resin transfer molded fittings manufacturedby pumping a thermos
19、etting resin into glass reinforcementsthat have been cut to size and clamped between matchedmolds.4.2.4 Type 4Centrifugally cast fittings made by applyingresin and reinforcement to the inside of a mold that is rotatingand heated, subsequently polymerizing the resin system.4.2.5 Type 5Contact molded
20、fittings made by applyingresin and reinforcement to a mold or to mitered filamentwoundstock or centrifugally cast pipe stock. This procedure shall alsocover “spray-up” fittings which are made by spraying resin andreinforcement on a mold or over mitered pipe wound stock.“Contact molding” includes bot
21、h hand lay-up and spray-upmanufacturing processes.4.2.6 Fittings of Type 1 through Type 5 which require thrustblocking or external axial restraint when installed shall havethe letter “R” appended to the type of designation. ( Forinstance, a contact molded fitting requiring thrust blockingwhen instal
22、led would be designated a type “5R”.)4.3 Grades:4.3.1 Grade 1Epoxy-resin.4.3.2 Grade 2Polyester-resin.4.3.3 Grade 3Phenolic-resin.4.3.4 Grade 4Vinylester resin.4.3.5 Grade 7Furan resin.4.4 Classes:4.4.1 Class ANo liner.4.4.2 Class BPolyester-resin liner (nonreinforced).4.4.3 Class CEpoxy-resin liner
23、 (nonreinforced).4.4.4 Class DPhenolic resin liner (nonreinforced).4.4.5 Class EPolyester-resin liner (reinforced).4.4.6 Class FEpoxy-resin liner (reinforced).4.4.7 Class GPhenolic resin liner (reinforced).4.4.8 Class HThermoplastic-resin liner (specify).4.4.9 Class IFuran-resin liner (reinforced).4
24、.4.10 Class JVinylester resin liner (nonreinforced).4.4.11 Class KVinylester resin liner (reinforced).4.5 Joint Categories (Method of Joining):4.5.1 Category 1Taper-to-taper adhesive-bonded joint fit-tings manufactured with a tapered socket to be used inconjunction with a pipe or fitting with a matc
25、hing spigotsection and a suitable adhesive. This joining method providesan interference fit over the entire length of the bond line.4.5.2 Category 2Straight-taper adhesive-bonded joint fit-ting manufactured with a tapered socket to be used with a pipeor fitting with an untapered spigot section and a
26、 suitableadhesive. This joining method provides an interference fit atthe bottom of the socket.4.5.3 Category 3Straight adhesive bonded joint fittingmanufactured with an untapered socket for use with a pipe orfitting with an untapered spigot and a suitable adhesive. Thisjoining provides no interfere
27、nce fit.4.5.4 Category 4Butt and strap joint made by a contactmolding process which involves hand lay-up with glass-wovenroving or chopped strand mat, or both, which is saturated withresin.4.5.5 Category 5Flanged fittings are available as alloutlets flanged or as flange-by-joint specified in this sp
28、ecifica-tion. Flanges are in compliance with Specification D 4024.4.5.6 Category 6Elastomeric (gasket) sealed joints withsealant manufactured in compliance with Specification F 477for joints which have integral longitudinal restraint and do notrequire thrust blocking or external longitudinal restrai
29、nt.4.5.7 Category 7Elastomeric (gasket) sealed joints withseals manufactured in compliance with Specification F 477 forjoints which require thrust blocking or external longitudinalrestraint.4.6 Pressure RatingPressure rating shall be categorizedby a single letter designation. Pressure designations a
30、re shownin Table 1. The pressure ratings are applicable for the tempera-ture at which the fittings were tested and for lower tempera-tures down to 50F (46C). When agreed upon betweenpurchaser and manufacturer, pressure ratings determined bytests conducted following Practice D 2992 are acceptable.4.7
31、 Designation CodeThe fitting designation code shallconsist of the abbreviation RTRF or RPMF followed by thetype, grade, and class in Arabic numerals and the pressurerating category as a capital letter.NOTE 4An example is RTRF 21A2E. This designation describes a(Type 2) compression molded fitting wit
32、h a (Grade 1) epoxy-resin withouta liner (Class A), which is joined with a (Category 2) taper-to-taperadhesive joining system and has a 200 psig (1380 kPa) pressure rating.NOTE 5Fittings with identical classification from different manufac-turers may not be interchangeable due to non-standardization
33、 of pipe orsocket diameter, socket length, taper angle, or combination thereof.TABLE 1 Pressure CategoriesDesignation Pressure RatingA, psig (kPa)A 25 (172)B 50 (345)C 100 (690)D 150 (1034)E 200 (1380)F 250 (1724)G 300 (2068)H 400 (2759)I 500 (3448)J 1000 (6896)APressure ratings are applicable only
34、for the temperature at which the fittingswere tested and for lower temperatures.D 5685 0525. Materials5.1 Fittings manufactured in accordance with this specifica-tion shall be composed of reinforcement embedded in orsurrounded by cured thermosetting-resin. The composite struc-ture may contain granul
35、ar or platelet fillers, thixotropic agents,pigments, or dyes.5.2 The resins, fiberglass reinforcements, and other materi-als, when combined into a composite structure, shall produce afitting that will meet the performance requirements of thisspecification.6. Requirements6.1 WorkmanshipThe fittings s
36、hall be free of all defectsincluding indentations, delaminations, bubbles, pin holes, for-eign inclusions, and resin starved areas, which, due to theirnature, degree, or extent, detrimentally affect the strength andserviceability of the fitting. The fitting shall be as uniform ascommercially practic
37、able in color, opacity, and other physicalproperties.6.2 Dimensions and TolerancesAll flanged fittings shallconform to the center line to flange face dimensions, hole sizeand hole pattern, and tolerances of ANSI B16.5 short or longradius type, or otherwise as agreed upon between the manu-facturer an
38、d purchaser. Fitting center line to end dimensions,taper angles, taper length, or combinations thereof, will varyfor non-flanged joining systems and the individual manufac-turers shall be consulted for dimensions. Dimensions shall bemeasured in accordance with 7.3.NOTE 6Fittings with short radii whi
39、ch are not in compliance withANSI B16.5 radius tolerances may be available.6.3 Fittings and Connections Pressure Test RequirementsFittings, couplings, and connections shall meet the followingqualification requirements when tested with restrained ends forType 6 fittings, and unrestrained ends for oth
40、er type fittings, inaccordance with 7.4.1 for short term hydrostatic strength tests,and 7.4.2 for cyclic or static tests.6.3.1 Each type of component and its field-jointed configu-ration shall be capable of sustaining a short-time hydrostaticpressure, of at least four times its cyclic-rated pressure
41、 or threetimes its static-rated pressure for 1 min without visible weepingor leakage.6.3.2 Each component shall meet or exceed the cyclic orstatic-test requirements of 7.4.2.6.4 Glass Transition Temperature (Tg)The Tg for eachresin used, as determined by some thermal analysis method,shall be no less
42、 than a minimum statistically significant valueestablished by the manufacturer. Samples shall be taken frommanufactured fittings when thermal analysis testing is accom-plished by differential-scanning-chlorimeter (DSC). Test inaccordance with 7.5.6.5 Factory leak tests shall be conducted at a pressu
43、re of 1.5times pressure rating and at a frequency determined by anagreement between the purchaser and the seller.6.6 For individual orders, only those additional test andnumber of tests specifically agreed upon between the purchaserand the seller need be conducted.7. Test Methods7.1 ConditioningWhen
44、 conditioning is required, and inall cases of disagreement, condition the test specimens at 73.46 3.6F (23 6 2C) and 50 6 5 % relative humidity for notless than 40 h prior to test, in accordance with Procedure A ofPractice D 618.7.2 Test ConditionsThe tests may be conducted at ambi-ent temperature a
45、nd humidity conditions. When controlledenvironment testing is specified, tests shall be conducted in theStandard Laboratory Atmosphere of 73.4 6 3.6F (23 6 2C)and 50 6 5 % relative humidity. When elevated temperaturetesting is specified, conduct the tests at the design temperature6 5.4F (3C).7.3 Dim
46、ensions and TolerancesMeasure fitting dimen-sions in accordance with applicable documents and PracticeD 3567. Measure flange dimensions with a micrometer orvernier calipers, or other suitable measuring devices accurateto within 60.001 in. (0.02 mm). Diameters shall be determinedby averaging a minimu
47、m of four measurements, equally spacedcircumferentially.7.4 Pressure Tests:7.4.1 Short-Term Hydrostatic Strength TestShort-term hy-drostatic failure pressure tests to determine compliance with6.3 performed at ambient temperature in accordance with TestMethod D 1599 using specimens and sizes as descr
48、ibed in7.4.3. Leaking past the gasket interface of flanged fittings andelastomeric sealed fittings is permissible during this test,provided the pressure is at least two times the rating when theleak occurs. The bolt torquing sequence of SpecificationD 4024, Fig. 2 shall be used when testing flanged
49、fittings.Fittings without flanges shall be tested with the pipe they are tobe used with joined to the fitting. Bending or shape restraintduring the test is permitted to the extent applicable to itsanticipated installed conditions. This information shall becontained in the test report.7.4.2 Cyclic or Static Pressure Test:7.4.2.1 For cyclic pressure tests, the gage pressure at thepeak pressure of the cycle shall be not less than 2 times thepressure rating of the fitting. The cycle amplitude pressureshall be at least 80 % of the
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