1、Designation: D 4024 05An American National StandardStandard Specification forMachine Made “Fiberglass (Glass-Fiber-ReinforcedThermosetting Resin) Flanges1This standard is issued under the fixed designation D 4024; the number immediately following the designation indicates the year oforiginal adoptio
2、n 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 reinforced-thermosetting resinflanges other tha
3、n contact-molded flanges. Included are re-quirements for materials, workmanship, performance, anddimensions.1.2 Flanges may be produced integrally with a pipe orfitting, may be produced with a socket for adhesive bonding toa pipe or fitting, or may be of the type used in conjunction witheither a met
4、allic or nonmetallic backup ring.1.3 The values stated in inch-pound units are to be regardedas the standard. The values in parentheses are given forinformation only. In cases where materials, products, or equip-ment are available only in SI units, inch-pound units areomitted.1.4 The following preca
5、utionary caveat pertains only to thetest methods portion, Section 10, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices a
6、nd determine the applicability of regulatory limita-tions prior to use.NOTE 1Contact molded flanges are covered in Specification D 5421and referenced in Specification D 5685.NOTE 2There is no similar or equivalent ISO standard.2. Referenced Documents2.1 ASTM Standards:D 618 Practice for Conditioning
7、 Plastics and ElectricalInsulating Materials for Testing2D 883 Terminology Relating to Plastics2D 1599 Test Method for Short-Time Hydraulic Failure Pres-sure of Plastic Pipe, Tubing, and FittingsD 1600 Terminology for Abbreviated Terms Relating toPlastics2D 5421 Specification for Contact Molded “Fib
8、erglass(Glass-Fiber-Reinforced Resin) FlangesD 5685 Specification for “Fiberglass” (Glass-Fiber-Reinforced Thermosetting-Resin) Pressure Pipe FittingsF 412 Terminology Relating to Plastic Piping Systems2.2 ANSI Standards:B 16.1 Cast Iron Pipe Flanges and Flanged Fittings3B 16.5 Pipe Flanges and Flan
9、ged Fittings33. Terminology3.1 Definitions:3.1.1 GeneralDefinitions are in accordance with Termi-nology D 883 or Terminology F 412. Abbreviations are inaccordance with Terminology D 1600, unless otherwise indi-cated. The abbreviation for reinforced-thermosetting-resin pipeis RTRP.4. Classification4.
10、1 GeneralThis specification covers machine-madereinforced-thermosetting-resin flanges defined by type (methodof manufacture), grade (generic type of resin), class (configu-ration of joining system), and pressure rating. Flanges com-plying with this specification are also given numerical classi-ficat
11、ions relating to rupture pressure, sealing test pressure, andbolt torque limit.4.1.1 Types:4.1.1.1 Type 1Filament-wound flanges manufactured bywinding continuous fibrous glass strand roving or roving tape,either preimpregnated or impregnated during winding, into aflange cavity under controlled tensi
12、on.4.1.1.2 Type 2Compression-molded flanges made by ap-plying external pressure and heat to a molding compound thatis confined within a closed mold.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.23 on ReinforcedPlas
13、tic Piping Systems and Chemical Equipment.Current edition approved Mar. 1, 2005. Published March 2005. Originallyapproved in 1981. Last previous edition approved in 2000 as D 4024 00.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.
14、org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from 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.Copy
15、right ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.1.3 Type 3Resin-transfer-molded flanges manufac-tured by pumping a thermosetting resin into glass reinforce-ments that have been cut to size and clamped between matchedmolds.4.1.1.4 Type
16、 4Centrifugally-cast flanges are made byapplying resin and reinforcement to the inside of a mold that isrotated and heated, subsequently polymerizing the resin sys-tem.4.1.2 Grades:4.1.2.1 Grade 1Epoxy resin.4.1.2.2 Grade 2Polyester resin.4.1.2.3 Grade 3 Phenolic resin.4.1.2.4 Grade 4Vinylester resi
17、n.4.1.2.5 Grade 7Furan resin.4.1.3 Classes:4.1.3.1 Class 1Integrally-molded flange manufactured di-rectly on a pipe section, pipe stub, or fitting.4.1.3.2 Class 2Taper to taper adhesive joint flange manu-factured with a tapered socket to be used in conjunction with apipe or fitting with a tapered sp
18、igot section and a suitableadhesive. This joining method provides an interference fit overthe entire length of the bond line.4.1.3.3 Class 3Straight-taper adhesive joint flange manu-factured with a tapered socket to be used with a pipe or fittingwith an untapered spigot section and a suitable adhesi
19、ve. Thisjoining method provides an interference fit at the bottom of thesocket.4.1.3.4 Class 4Straight adhesive joint flange manufac-tured with an untapered socket for use with a pipe or fittingwith an untapered spigot and a suitable adhesive. This jointprovides no interference fit.4.1.4 Pressure Ra
20、tingPressure rating shall be categorizedby a single letter designation. Pressure designations are shownin Table 1.4.1.5 Rupture pressure, sealing test pressure, and bolt torquelimit shall be categorized by single arabic number designationsas indicated by the cell classification system of Table 2.4.2
21、 Designation CodeThe flange designation code shallconsist of the abbreviation RTR, followed by the type, grade,and class in arabic numerals, the pressure rating category as acapital letter, and three arabic numbers identifying the cellclassification designations of the rupture pressure, sealing test
22、pressure, and the bolt torque limit, respectively. Thus, acomplete flange designation code shall consist of three letters,three numerals and one letter, and three numerals.4.2.1 ExampleRTR-112C-334. This designation describesa filament-wound, glass fiber-reinforced epoxy resin flangewith a taper to
23、taper adhesive joining system. The flange has a150 psi (1.40 MPa) pressure rating, a burst pressure in excessof 600 psi (4.1 MPa), a sealing test pressure of 225 psi (1.6MPa), and a bolt torque limit greater than 75 lbfft (102 Nm).NOTE 3Flanges with identical classification from different manufac-tu
24、rers may not be interchangeable due to nonstandardization of pipe orsocket diameter, socket length, taper angle, or combination thereof.5. Materials and Manufacture5.1 Flanges manufactured in accordance with this specifi-cation shall be composed of reinforcement imbedded in orsurrounded by cured the
25、rmosetting resin. The composite struc-ture may contain granular or platelet fillers, thixotropic agents,pigments, or dyes.5.2 The resins, reinforcements, and other materials, whencombined as composite structure, shall produce a flange thatwill meet the performance requirements of this specification.
26、6. Performance Requirements6.1 The following performance requirements are intended toprovide classification and performance criteria for the purposeof qualification testing and rating of prototype constructionsand periodic reevaluation of the manufacturers stated ratings.They are not intended as rou
27、tine quality assurance require-ments for production runs of rated flanges.6.2 Flanges shall meet the following performance require-ments when joined for testing according to the manufacturersrecommended practice for field installation:6.2.1 SealingFlanges shall withstand a pressure of at least1.5 ti
28、mes the rated design pressure without leakage when testedin accordance with 10.4.6.2.2 Short-Term Rupture StrengthFlanges shall with-stand a hydrostatic load of at least four times their rated designpressure without damage to the flange when tested in accor-dance with 10.5.6.2.3 Bolt TorqueFlanges s
29、hall withstand, without visiblesign of damage, a bolt torque of at least 1.5 times thatrecommended by the manufacturer for sealing of the flange atits rated pressure when tested in accordance with 10.6.7. Content Requirements Content Requirements7.1 Recycled or Reprocessed Thermosetting PlasticsFlan
30、ges shall not contain any recylced or reprocessed thermo-setting plastics which might otherwise be added as fillers.8. Dimensions8.1 Dimensions and Tolerances:8.1.1 Flange and Bolt DimensionsFlanges of 24 in. (610mm) or smaller diameter shall conform to the values given inTable 3 for bolt circle, nu
31、mber and size of bolt holes, andoutside diameter. Flanges larger than 24 in. (610 mm) indiameter shall conform to the values for bolt circle, numberand size of bolt holes, and outside diameter for Class 125 castiron flanges in ANSI B 16.1. The tolerance for the flangedimensions provided in Table 3 s
32、hall be the same as thosecontained in ANSI B 16.1.8.1.2 Flange FaceThe flange face shall be perpendicularto the axis of the fitting within12 , and shall be flat to 6132 in.TABLE 1 Pressure CategoriesDesignationPressure Ratingpsi MPaA 50 0.35B 100 0.69C 150 1.03D 200 1.38E 250 1.72F 300 2.07G 400 2.7
33、6H 500 3.45D 4024 052(1 mm) for sizes up to and including 18 in. (457 mm) diameterand 6116 in. (2 mm) for larger diameters.8.1.3 Washer Bearing SurfaceWasher bearing surfaceshall be flat and parallel to the flange face within 61.8.2 Pipe StopEach adhesive joined flange shall providesufficient taper
34、or a diametral constriction to act as a stopduring adhesive joining so that the pipe stub cannot projectbeyond the face of the flange.9. Workmanship, Finish, and Appearance9.1 Flanges shall be free as commercially practical ofdefects, including indentations, delaminations, bubbles, pin-holes, foreig
35、n inclusions, and resin-starved areas.10. Test Methods10.1 ConditioningWhen 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
36、618.10.2 Test ConditionsThe tests may be conducted at am-bient temperature and 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
37、is specified, the tests shall be conducted at the designoperating temperature 65.4F (3C).10.3 Dimensions and TolerancesFlange dimensions shallbe measured with a micrometer of vernier calipers, or othersuitable measuring devices accurate to within 60.001 in.(60.02 mm). Diameters shall be determined b
38、y averaging aminimum of four measurements, equally spaced circumferen-tially.10.4 SealingFlanged components in general arrangementwith Fig. 1 shall be bolted together using the gasket and bolttorque recommended for standard field installation by theflange manufacturer. The assembly shall then be pre
39、ssuretested and be required to hold the test pressure for a period of168 hours without leakage. Retorquing to the manufacturersspecified level after initial pressurization is permitted.10.5 Short-Term Rupture StrengthFlanged componentsshall be tested in accordance with Test Method D 1599 withfree-en
40、d closure except as herein noted. The pressure in thespecimen shall be increased until failure of the flange occurs.Pressure testing in an atmospheric environment is permissible.Minimum failure time shall be 60 s; no restriction shall beplaced on maximum time-to-failure. Leaking past the gasketinter
41、face is permissible during this test. Bolt torque may beincreased as necessary during the test in order to minimizegasket leaking and to achieve the pressure necessary to causeTABLE 2 Burst Pressure, Sealing Test Pressure, and Bolt Torque LimitProperty 0A12345678Burst pressure, psi 200 400 600 800 1
42、000 1200 1600 2000(MPa) (1.38) (2.76) (4.14) (5.52) (6.89) (8.27) (11.03) (13.79)Sealing test pressure, psi 75 150 225 300 375 450 600 750(MPa) (0.52) (1.03) (1.55) (2.07) (2.59) (3.10) (4.14) (5.17)Bolt torque limit, lbfft. 20 30 50 75 100 125 150 200(Nm) (27.1) (40.7) (67.8) (101.7) (135.6) (169.5
43、) (203.4) (271.2)A0 = unspecified.TABLE 3 Flange Dimensions, in. (mm)ANominal Pipe,SizeBOutside Diameterof FlangeDrillingDiameter of Bolt Circle Diameter of Bolt Holes Number of Bolts Diameter of Bolts12 3.50 (88.9) 2.38 (60.5) 0.62 (15.75) 412 (12.70)34 3.88 (98.6) 2.75 (69.9) 0.62 (15.75) 412 (12.
44、70)1 4.25 (107.9) 3.12 (79.2) 0.62 (15.75) 412 (12.70)114 4.62 (117.3) 3.50 (88.9) 0.62 (15.75) 412 (12.70)112 5.00 (127.0) 3.88 (98.6) 0.62 (15.75) 412 (12.70)2 6.00 (152.4) 4.75 (120.6) 0.75 (19.0) 458 (15.9)212 7.00 (177.8) 5.50 (139.7) 0.75 (19.0) 458 (15.9)3 7.50 (190.5) 6.00 (152.4) 0.75 (19.0
45、) 458 (15.9)312 8.50 (215.9) 7.00 (177.8) 0.75 (19.0) 858 (15.9)4 9.00 (228.6) 7.50 (190.5) 0.75 (19.0) 858 (15.9)5 10.00 (254.0) 8.50 (215.9) 0.88 (22.4) 834 (19.0)6 11.00 (279.4) 9.50 (241.3) 0.88 (22.4) 834 (19.0)8 13.50 (342.9) 11.75 (298.4) 0.88 (22.4) 834 (19.0)10 16.00 (406.4) 14.25 (361.9) 1
46、.00 (25.4) 1278 (22.2)12 19.00 (482.6) 17.00 (431.8) 1.00 (25.4) 1278 (22.2)14 21.00 (533.4) 18.75 (476.2) 1.12 (28.4) 12 1 (25.4)16 23.50 (596.9) 21.25 (539.8) 1.12 (28.4) 16 1 (25.4)18 25.00 (635.0) 22.75 (577.8) 1.25 (31.7) 16 118 (28.6)20 27.50 (698.5) 25.00 (635.0) 1.25 (31.7) 20 118 (28.6)24 3
47、2.00 (812.8) 29.50 (749.3) 1.38 (35.1) 20 114 (31.7)ADimensions conform to ANSI B16.5 for Class 150 steel flanges.BFor larger sizes, see 8.1.1.D 4024 053flange failure. The assembly used for the test in 10.4 may beused for this test.WarningDo not test with air pressure.10.6 Maximum Bolt TorqueUsing
48、the gasket and hard-ware recommended by the flange manufacturer, bolt the flangeagainst a flat face steel flange. Tighten the nuts by hand untilthey are snug. Prior to fit-up, the nuts, bolts, and washersshould be well lubricated, using a nonfluid thread lubricant.Establish uniform pressure over the
49、 flange face by tighteningbolts in 5 lbfft (7 Nm) increments according to the sequenceshown in Fig. 2. For flanges with more than 20 bolts, similaralternating bolt tightening sequences shall be used. Increase thebolt torque uniformly until flange failure occurs or until allbolts have been torqued to five times the level recommendedby the manufacturer for field installation practice to establishthe bolt torque cell classification of the flange. Any sign offlange damage (crumbling, flaking, cracking,
