1、Designation: C1639 16Standard Specification forFabrication Of Cellular Glass Pipe And Tubing Insulation1This standard is issued under the fixed designation C1639; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last rev
2、ision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers fabrication techniques forcellular glass block into billets to fabricate pipe and tubinginsulation.
3、All materials shall be in accordance with Specifi-cation C552.1.2 The purpose of this specification is to optimize thethermal performance of installed cellular glass insulationsystems. This is best achieved by limiting the number of joints,in particular through joints.1.3 The values stated in inch-p
4、ound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is ther
5、esponsibility 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.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC450 Practice for Fabrication of Thermal
6、Insulating FittingCovers for NPS Piping, and Vessel LaggingC552 Specification for Cellular Glass Thermal InsulationC585 Practice for Inner and Outer Diameters of ThermalInsulation for Nominal Sizes of Pipe and TubingD312 Specification for Asphalt Used in Roofing2.2 ASTM Adjuncts:3ADJC0450A ASTM Reco
7、mmended Dimensional Standardsfor Fabrication of Thermal Insulation Fitting Covers3. Terminology3.1 Terminology C168 shall be considered as applying tothe terms in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 billet / buna single piece of insulation made up froma number
8、 of smaller blocks held together with an adhesive.3.2.2 lagspieces of insulation typically curved or taperedused for insulating pipes, tanks and other cylindrical equip-ment.3.2.3 precision cut V-grooved pipe insulation, nrigid in-sulation pieces cut into 4-sided polygons, of two parallelsurfaces an
9、d two non-parallel surfaces of equal angles = 180/ N, such that when N number of these sections are assembled,they form an approximate circle and can be installed around apipe.3.2.3.1 DiscussionThe adjective precision refers to thefact that when these N sections are installed onto a pipe, theyfit ex
10、actly with no appreciable gaps between sections.3.2.4 bond joint, nthe joint formed by the adhered matingsurfaces of several thicknesses of cellular glass block orfabricated cellular glass insulation pieces that are used to createa cellular glass insulation billet, bun, or pipe and tubinginsulation
11、segments. See Fig. 1.3.2.4.1 DiscussionA bond joint is created during thefabrication of cellular glass pipe and tubing insulation and ismade with a full depth (100 % coverage) of an approvedadhesive. (See 3.2.1 and 8.4).3.2.5 fabrication joints see bond joint, nthe joint be-tween adhered mating surf
12、aces of cellular glass pipe and tubinginsulation segments formed by fabricated segments or sectionsof cellular glass insulation that are assembled in the fabricationshop, facility, or jobsite, to produce the cellular glass pipe andtubing insulation. See Figs. 2-4.3.2.5.1 DiscussionA fabrication join
13、t is created at a fab-rication shop or facility and is made with a full depth (100 %coverage) of an approved adhesive.3.2.6 field joints, nmating surfaces of cellular glass insu-lation created during the installation process.3.2.6.1 DiscussionField joints shall be formed with fulldepth adhesive, ful
14、l depth of sealant or from the matingsurfaces of the cellular glass insulation.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.40 onInsulation Systems.Current edition approved Sept. 1, 2016. Published Octob
15、er 2016. Originallyapproved in 2007. Last previous edition approved in 2010 as C1639 10a. DOI:10.1520/C1639-16.2For 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 s
16、tandards Document Summary page onthe ASTM website.3Available from ASTM International Headquarters. Order Adjunct No.ADJC0450A.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.2.7 non-through joints, nbond or fabrication joints thatst
17、art at the outside circumference of fabricated insulation andrun continuously in a straight line to the opposite sideterminating at the outside circumference of the pipe insulation.(See Fig. 2.)3.2.7.1 DiscussionNon-through joints do not intersect thepipe insulations inside diameter (ID).3.2.8 throu
18、gh joints, nbond or fabrication joints that startat the outside circumference of fabricated insulation and runcontinuously in a straight line through the fabricated piece andterminates at the pipe insulations inside diameter (ID) (SeeFig. 3.)3.2.8.1 DiscussionThrough joints intersect the pipe/insula
19、tion interface.3.2.9 beveled lag, nrigid insulation pieces cut into isosce-les trapezoid shape used to form a 360 circle that is installedaround pipe or tubing.3.2.9.1 DiscussionBeveled lags differ from precision cutV-grooved in that pieces are a minimum of 8 in. (203 mm)wide and are not bonded to a
20、 scrim, fabric or jacketing.4. Classification4.1 Specification C552 defines Type I and Type II materials.The same classifications shall be used in this standard.5. Workmanship, Finish, and Appearance5.1 The insulation shall have no visible defects that willadversely affect its performance.6. Standar
21、d Sizes, Dimensions, and FabricationConfigurations of Cellular Glass Pipe and TubingInsulation6.1 Cellular glass pipe and tubing insulation shall be fabri-cated in lengths as agreed to by the purchaser and the supplier.Typical lengths are 2312 in. (597 mm), 2358 in. (600 mm), 24in. (610 mm), 3512 in
22、. (902 mm), or 36 in. (914 mm).6.2 Cellular glass pipe and tubing insulation with outerdiameters that are 658 in. (168 mm) shall be made to aminimum thickness of 1-in. (25 mm). Pipe insulation withouter diameter that is 658 in. (168 mm) shall be made to aminimum 112-in. (38 mm) thickness. Sizes shal
23、l conform toPractice C585.6.3 Cellular glass pipe insulation with outer diameters thatare 30 in. (762 mm) shall be furnished as curved sidewallsegments (see Fig. 5) which shall be fabricated in equal sizesegments such that no additional field cuts are required.6.6 For operating temperatures above am
24、bient, circular cutsegmented fabrication as shown in Fig. 5, beveled lags, orprecision cut V-grooved pipe insulation, as shown in Fig. 6,specifically cut to fit the required diameter, are acceptablealternatives.FIG. 1 Cellular Glass Insulation BilletFIG. 2 Non-through JointsFIG. 3 Through JointsFIG.
25、 4 90 Joint IntersectionC1639 1627. Dimensional Tolerances7.1 Fabrication tolerances for the bore diameter and wallthickness shall be as specified in Practice C585.7.2 Cellular glass pipe and tubing insulation shall be edged-trimmed in at the fabrication site to provide flat mating surfacesfor optim
26、al field joint closure.7.3 Tolerance for length of pipe and tubing insulation shallbe 614 in. (66 mm).7.4 The following dimensional tolerances apply only tocellular glass pipe and tubing insulation applied in halfsections:7.4.1 Fit and ClosureWhen fitted to the appropriate sizepipe by banding on 9 i
27、n. (230 mm) centers, the longitudinaljoints on both sides of the pipe insulation shall close to within116 in. (1.6 mm) along the entire length of the section.7.4.2 ConcentricityThe inner bore of the pipe insulationshall be concentric with the outer cylindrical surface. Deviationfrom concentricity sh
28、all not exceed18 in. (3.2 mm) at allpoints.7.4.3 Half-Section Balancethe plane formed by the slitbetween half sections shall include the cylindrical axis. Devia-tion of the split plane from the cylindrical axis over a 24-in.(610-mm) length shall not exceed18 in. (3.2 mm).7.4.4 Multi-layer cellular g
29、lass pipe and tubing insulationshall be fabricated to the tolerances in 7.4.1 7.4.3 so thatlayers nest and close to within116 in. (1.6 mm) along the entirelength of the sections.8. Fabrication Standards8.1 Cellular glass pipe and tubing insulation shall be fabri-cated from the minimum number of insu
30、lation blocks that ispractical.8.2 Bond joint and fabrication adhesive for below ambienttemperatures 297F (183C) shall be hot asphalt, Specifi-cation D312, Type II, III, or IV, or manufacturer approved lowpermeability 0.01 perm-in. (0.015 ng/Pasm) alternative.8.3 Fabricating adhesive shall be applie
31、d such that there is100 % coverage of adhesive on the mating surfaces.8.4 There shall be no visible voids in the adhered joint norshall any adhered joint exceed116 in. (1.6 mm) in width.8.5 Insulation blocks or sections shall be hand rubbed ifnecessary and the dust removed to fit cellular glass insu
32、lationblock together prior to bonding.8.6 For operating temperatures at or below 297F(183C), the potential for oxygen condensation exists. In suchsituations, when required by the client, the use of inorganicfabrication adhesives is acceptable for bond joints, fabricationjoints, and field joints of t
33、he inner layer insulation of thesesystems. The bond joints, fabrication joints, and field joints ofthe outer insulation layer shall be hot asphalt, SpecificationD312, Type II, III, or IV, or manufacturer approved lowpermeability 0.01 perm-in. (0.015 ng/Pasm) alternative.8.7 For operating temperature
34、s above ambient, fabricationadhesive shall include but not be limited to gypsum-basedcement of the type and grade specified by the cellular glassinsulation manufacturer. Adhesives shall be suitable for speci-fied design conditions.8.8 Fabrication joints on the inside and outside diameter offabricate
35、d pieces shall be smooth and consistent with the shapeof the fabricated pieces. Care shall be taken that adhesive is notrecessed or extended from the dimension of the fabricatedhalf-section or segment more than132 in. (0.8 mm).8.9 Bond or fabrication joints which meet other bond jointsmust meet at 9
36、0 angles, must be a minimum of 1 in. (25.4 mm)in length and shall not cross. (See Fig. 4).8.10 Fabricated sections of insulation shall be a minimum of12 in. (12.7 mm) thick. (See Fig. 2 and Fig. 3).8.11 Beveled Lags and Precision Cut V-Groove Consider-ations:8.11.1 Beveled lags and precision cut V-g
37、roove shall not beused for below ambient applications.8.11.2 Beveled lags shall contain no more than one non-through bond joint per lag.8.11.3 Beveled lags shall be a minimum of 8 in. (203 mm)wide when measured at the outer insulation face.8.12 Segmented Pipe Insulation Considerations:8.12.1 Segment
38、ed pipe insulation shall be fabricated inequal widths with the exception of the final or key piece whichwill be field trimmed if needed to ensure proper fit and closure.8.12.2 Segmented pipe insulation shall be a minimum of 8in. (203 mm) wide when measured at the outer insulation face.FIG. 5 Circula
39、r Cut Segmented Pipe InsulationFIG. 6 Precision Cut V-Grooved Segmented Pipe InsulationC1639 1638.13 Quarter Section ConsiderationsQuarter section insu-lation fabricated to have an installed outer diameter that is 1534 in. (400 mm) and 30 in. (762 mm) shall have no morethan two through-joints per qu
40、arter section.8.14 Fitting Insulation Considerations:8.14.1 Fittings for all sizes shall be either factory ground orfactory mitered.8.14.2 Fittings shall be fabricated to meet the dimensionalstandards of ADJC0450A Adjunct3.8.14.3 Acceptable adhesive for fittings shall be as specifiedin 8.2 8.6.8.15
41、Multiple Layer Insulation Considerations:8.15.1 Cellular glass pipe and tubing insulation fabricatedfor multiple layer systems shall be fabricated using the sameconfiguration requirements in Section 6.8.15.2 Cellular glass fitting insulation fabricated for mul-tiple layer systems shall be fabricated
42、 so that joints of eachinsulation layer are offset from the previous insulation layerwhen agreed to by the fabricator and purchaser.9. Packaging and Marking9.1 PackagingUnless otherwise agreed and specified be-tween the purchaser and the manufacturer or supplier, thecellular glass insulation shall b
43、e packaged in the manufacturer/fabricators standard commercial containers. Pipe and tubinghalf sections, segments, fittings, etc. must be separated fromeach other (prevent contact with other pieces) using kraft paperor equal when packaged.9.2 MarkingUnless otherwise specified, each containershall be
44、 plainly marked as follows:9.2.1 Pipe and Tubing InsulationThe name of the cellularglass manufacturer, the name, location, and address of thefabricator, the product name, pipe size, grade, quantity, nomi-nal thickness, and jacket if applicable shall be included on thecontainer. In addition, containe
45、r markings shall include thefabricator lot number or code date identification of the materialin the container. When specified in the purchase order orcontract and when agreed to by the seller, each container shallalso be marked with appropriate ASTM specification alphanu-meric number, type, category
46、, and grade when applicable.9.2.2 Special ShapesThe name of the cellular glassmanufacturer, the name, location, and address of the fabricator,the product name, pipe size, shape, grade, quantity, nominalthickness, and jacket if applicable shall be included on thecontainer. In addition, container mark
47、ings shall include thefabricator lot or code date identification of the material in thecontainer.10. Keywords10.1 bond joints; cellular glass; fabrication; fabricationjoints; pipe insulation; tubing insulationASTM International takes no position respecting the validity of any patent rights asserted
48、in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the
49、responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committe
