1、Designation: C1639 10Standard 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:3.3 billet / buna single piece of insulation made up froma number o
8、f smaller blocks held together with an adhesive.3.4 lagspieces of insulation typically curved or taperedused for insulating pipes, tanks and other cylindrical equip-ment.3.5 precision cut V-grooved pipe insulation, nrigid insu-lation pieces cut into 4-sided polygons, of two parallel surfacesand two
9、non-parallel surfaces of equal angles = 180 / N, suchthat when N number of these sections are assembled, they forman approximate circle and can be installed around a pipe.3.5.1 Discussionthe adjective precision refers to the factthat when these N sections are installed onto a pipe, they fitexactly w
10、ith no appreciable gaps between sections.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 performan
11、ce.6. Standard Sizes, Dimensions, and FabricationConfigurations of Cellular Glass Pipe and TubingInsulation6.1 Cellular glass pipe and tubing insulation shall befabricated in lengths as agreed to by the purchaser and thesupplier. Typical lengths are 2312-in. (597mm), 24 in. (610mm), or 36 in. (914 m
12、m).6.2 Cellular glass pipe and tubing insulation for NPS 4 (102mm) and smaller pipe shall be made to a minimum thickness of1-in. (25 mm). Pipe insulation for pipes larger than 4 in. NPS(102 mm) shall be made to a minimum 112-in. (38 mm)thickness. Sizes shall conform to Practice C585. A minimum 21Thi
13、s 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 March 1, 2010. Published March 2010. Originallyapproved in 2007. Last previous version approved in 2007 as C16390
14、7. DOI:10.1520/C1639-10.2For 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 He
15、adquarters. Order Adjunct No.ADJC0450A.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.in. (51 mm) thickness should be used for pipe sizes larger than12 in. NPS (324 mm).6.3 Cellular glass pipe insulation must be provided in halfsect
16、ions for up to and including 12 in. NPS (324 mm). Halfsections shall consist of hollow cylindrical sections splitlengthwise in a plane that includes the cylindrical axis.6.4 Cellular glass pipe insulation for pipe sizes 14 in. (356mm) to 24 in. NPS (406 mm) must be fabricated in half-sections or in
17、quarter-sections. At 26 in. NPS (660 mm) andabove, segmented pipe insulation shall be furnished. Seg-mented pipe insulation (see Fig. 1) shall be fabricated in equalwidths such that no additional field cuts are required.6.5 For operating temperatures above ambient, precision cutV-grooved pipe insula
18、tion specifically cut to fit the requireddiameter or segmented fabrication is an acceptable alternative.6.6 For operating temperatures between 0F (-18C) andambient, precision cut V-grooved pipe insulation, as shown onFig. 2, is an acceptable alternative provided an acceptablevapor retarder is used.6
19、.7 For operating temperatures below 0 F (-18C),V-grooved material, as shown on Fig. 2 is not acceptable.7. Dimensional Tolerances7.1 Fabrication tolerances for the bore diameter and wallthickness shall be as specified in Practice C585.7.2 Tolerance for length of pipe and tubing insulation shallbe 61
20、4 in. (6 3.2 mm).7.3 The following dimensional tolerances apply only tocellular glass pipe and tubing insulation applied in halfsections:7.3.1 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 shal
21、l close to within116 in. (1.6 mm) along the entire length of the section.7.3.2 ConcentricityThe inner bore of the pipe insulationshall be concentric with the outer cylindrical surface. Deviationfrom concentricity shall not exceed18 in. (3.2 mm) or 5% ofthe wall thickness, whichever is greater, at al
22、l points.7.3.3 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).8. Fabrication Standards8.1 Cellular glass pipe and tubing ins
23、ulation shall be fabri-cated from the minimum number of insulation blocks. Sec-tional pipe insulation shall contain not more than four9through9 joints per full section of insulation, excluding thehalf section mating plane (Fig. 3). Precision cut v-groovefabrication is an exception.8.2 Fabrication ad
24、hesive shall be hot asphalt, SpecificationD312, Type II, III, or IV, for operating temperatures below250F (121C). For operating temperatures above ambient,fabrication adhesive shall include but not be limited to Type IIhot asphalt, elastomeric asphalt, or gypsum-based cement ofthe type and grade spe
25、cified by the insulation manufacturer.Adhesives shall be suitable for specified design conditions.8.2.1 Fabricating adhesive shall be applied such that there is100% coverage of adhesive on the mating surfaces.8.2.2 There shall be no visible voids in the adhered joint norshall any adhered joint excee
26、d116 in. (1.6 mm) in width.8.3 Billet and miter construction shall conform to thefollowing:8.3.1 Insulation blocks or sections shall be hand rubbed ifnecessary to fit prior to bonding.8.3.2 Bond joints shall be made with a full depth ofapproved adhesive. (See 3.3.)8.4 Bond Joints for Segmented Fabri
27、cationBond jointsare defined as an adhesive joint in insulation for constructionpurposes:8.4.1 Are “Non-through” - start at the outside circumferenceand run continuously in a straight line to the opposite sideterminating at the outside circumference, or;8.4.2 Are through” start at the outside circum
28、ference andruns continuously in a straight line to the opposite side andterminates at the inside circumference (See Fig. 3 and Fig. 4)8.4.3 Bond joints shall be no greater than116 in. (1.6mm)thick.8.4.4 Fabricated sections of insulation shall be a minimumof in. (12.7mm) thick. (See Fig. 3 and Fig. 4
29、)8.4.5 Bond 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 fabricatedmore than132 in. (0.8mm).8.4.6 Bond joints which meet othe
30、r bond joints must meet at90 angels, must be a minimum of 1 in. (25.4mm) in length andshall not cross. (Fig. 4)8.4.7 There shall be a maximum of two bond joints per halfsection or sidewall segment. (See Fig. 3 and Fig. 4).FIG. 1 Circular Cut Segmented Pipe InsulationC1639 1028.4.8 For pipe insulatio
31、n that is designed for pipe sizes 6 in.(152 mm) and under, there shall not be more than onefabrication joint per half section.8.4.9 Pipe insulation that is designed for pipe sizes greaterthan 6 in. (152 mm) and less than 18 in. (457mm) shall nothave more than three fabrication joints per half sectio
32、n.8.4.10 Pipe insulation that is designed for pipe sizes 18 in.(457mm) and above shall not have more than four fabricationjoints per half section.8.4.11 Insulation curved sidewall segments shall have nomore than two bond joints per sidewall segment. These bondjoints shall conform to the requirements
33、 previously stated insections 8.4.1-8.4.6 of this standard.8.4.12 Beveled lags and precision cut V-groove shall not beused for below ambient applications. If beveled lags arespecified for above ambient applications, they shall have nomore than one fabrication joint per lag.8.5 Segmented Pipe Insulat
34、ion Considerations:8.5.1 All segmented pipe insulation shall be edge trimmedat the fabrication site.8.5.2 Either a grinder or a saw shall be used to edge trimsegmented pipe insulation.8.5.3 If segmented pipe insulation is edge trimmed using asaw blade, edges shall be rubbed to remove uneven patterns
35、caused by flexing blade where needed.8.6 Fitting Insulation Considerations:8.6.1 Fittings for all sizes shall be either factory ground orfactory mitered.8.6.2 Fittings shall be fabricated to meet the dimensionalstandards of ADJC0450A Adjunct3.FIG. 2 Precision Cut V-Grooved Segmented Pipe InsulationF
36、IG. 3 Non-through JointsFIG. 4 Through JointsC1639 1038.6.3 Acceptable adhesive for fittings shall be as specified in8.2.9. Packaging and Marking9.1 PackagingUnless otherwise agreed and specified be-tween the purchaser and the manufacturer or supplier, thecellular glass insulation shall be packaged
37、in the manufacturer/fabricators standard commercial containers.9.2 MarkingUnless otherwise specified, each containershall be plainly marked as follows:9.2.1 Pipe and Tubing InsulationThe name of themanufacturer/fabricator, pipe size, grade, quantity, nominalthickness, and jacket, if any, of the mate
38、rial in the container.9.2.2 Special ShapesThe name of the manufacturer/fabricator, shape, grade, and quantity of the material in thecontainer.10. Keywords10.1 cellular glass; fabrication; pipe insulation; tubinginsulationASTM International takes no position respecting the validity of any patent righ
39、ts asserted 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
40、time by the 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 wil
41、l 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 Committee on Standards, at the address shown below.This standard is copyrighted by AST
42、M International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).C1639 104
