1、Designation: C1639 17Standard 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.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization establi
6、shed in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC450 Practice for
7、Fabrication of Thermal 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 Adjunc
8、ts:3ADJC0450A ASTM Recommended 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 insulati
9、on made up froma number 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
10、two parallelsurfaces and 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
11、onto a pipe, theyfit exactly 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 pip
12、e and tubinginsulation 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-tw
13、een adhered mating surfaces 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. 2-4.1This specifi
14、cation is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.40 onInsulation Systems.Current edition approved April 15, 2017. Published April 2017. Originallyapproved in 2007. Last previous edition approved in 2016 as C1639 16. DOI:
15、10.1520/C1639-17.2For 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 from ASTM International Headquart
16、ers. Order Adjunct No.ADJC0450A.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Princi
17、ples for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13.2.5.1 DiscussionA fabrication joint is created at a fab-rication shop or facility and is made with a full depth (100 %coverage) of an a
18、pproved 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, full depth of sealant or from the matingsurfaces of the cellular glass insulation.3.2.7 non-through join
19、ts, nbond or fabrication joints thatstart 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 insula
20、tions inside diameter (ID).3.2.8 through 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 DiscussionTh
21、rough joints intersect the pipe/insulation 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
22、. (203 mm)wide and are not bonded to a 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 willadver
23、sely affect its performance.6. Standard 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
24、 in. (600 mm), 24in. (610 mm), 3512 in. (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
25、 112-in. (38 mm) thickness. Sizes shall 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 sizeFIG. 1 Cellular Glass Insulation BilletFIG. 2 Non-through
26、JointsFIG. 3 Through JointsFIG. 4 90 Joint IntersectionC1639 172segments with the exception of the final or key piece whichwill be field trimmed if needed to ensure proper fit and closure.6.6 For operating temperatures above ambient, circular cutsegmented fabrication as shown in Fig. 5, beveled lags
27、, orprecision cut V-grooved pipe insulation, as shown in Fig. 6,specifically cut to fit the required diameter, are acceptablealternatives.7. Dimensional Tolerances7.1 Fabrication tolerances for the bore diameter and wallthickness shall be as specified in Practice C585.7.2 Cellular glass pipe and tub
28、ing insulation shall be edged-trimmed in at the fabrication site to provide flat mating surfacesfor optimal 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 insulati
29、on applied in halfsections:7.4.1 Fit and ClosureWhen fitted to the appropriate sizepipe by banding on 9 in. (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
30、the pipe insulationshall be concentric with the outer cylindrical surface. Deviationfrom concentricity shall 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 c
31、ylindrical axis over a 24-in.(610-mm) length shall not exceed18 in. (3.2 mm).7.4.4 Multi-layer cellular glass 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 St
32、andards8.1 Cellular glass pipe and tubing insulation shall be fabri-cated from the minimum number of insulation 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 ap
33、proved lowpermeability 0.01 perm-in. (0.015 ng/Pasm) alternative.8.3 Fabricating adhesive shall be applied 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 Insul
34、ation blocks or sections shall be hand rubbed ifnecessary and the dust removed to fit cellular glass insulationblock 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
35、of inorganicfabrication adhesives is acceptable for bond joints, fabricationjoints, and field joints of the 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 manu
36、facturer approved lowpermeability 0.01 perm-in. (0.015 ng/Pasm) alternative.8.7 For operating temperatures 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 suitab
37、le for speci-fied design conditions.8.8 Fabrication joints on the inside and outside diameter offabricated 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 se
38、gment more than132 in. (0.8 mm).8.9 Bond or fabrication joints which meet other bond jointsmust meet at 90 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.
39、3).8.11 Beveled Lags and Precision Cut V-Groove Consider-ations:8.11.1 Beveled lags and precision cut V-groove shall not beused for below ambient applications.8.11.2 Beveled lags shall contain no more than one non-through bond joint per lag.FIG. 5 Circular Cut Segmented Pipe InsulationFIG. 6 Precisi
40、on Cut V-Grooved Segmented Pipe InsulationC1639 1738.11.3 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 Segmented pipe insulation shall be fabricated inequal widths with the exception of the final
41、 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.8.13 Quarter Section ConsiderationsQuarter section insu-lation fabricated to have an installed oute
42、r diameter that is 1534 in. (400 mm) and 30 in. (762 mm) shall have no morethan two through-joints per quarter 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 dimensionalstan
43、dards of ADJC0450A Adjunct3.8.14.3 Acceptable adhesive for fittings shall be as specifiedin 8.2 8.6.8.15 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 Sect
44、ion 6.8.15.2 Cellular glass fitting insulation fabricated for mul-tiple layer systems shall be fabricated 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 an
45、d specified be-tween the purchaser and the manufacturer or supplier, thecellular glass insulation shall be packaged in the manufacturer/fabricators standard commercial containers. Pipe and tubinghalf sections, segments, fittings, etc. must be separated fromeach other (prevent contact with other piec
46、es) using kraft paperor equal when packaged.9.2 MarkingUnless otherwise specified, each containershall be 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, quanti
47、ty, nomi-nal thickness, and jacket if applicable shall be included on thecontainer. In addition, container 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, ea
48、ch container shallalso be marked with appropriate ASTM specification alphanu-meric number, type, category, 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,
49、nominalthickness, and jacket if applicable shall be included on thecontainer. In addition, container markings 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 in connection with any item mentionedin this standard. Users of this standard are expre
