1、Designation: C1639 10aStandard 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 re
2、vision. 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-
4、pound 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 the
5、responsibility 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 Rec
7、ommended 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
8、of 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
10、with 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 performa
11、nce.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
12、mm).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 21Th
13、is 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, 2010. Published September 2010. Originallyapproved in 2007. Last previous version approved in 2010 as C
14、163910. DOI:10.1520/C1639-10A.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 Internatio
15、nal Headquarters. 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 ha
16、lfsections 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
17、or in 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
18、insulation, as shown on Fig. 2 specifically cutto fit the required diameter or segmented fabrication is anacceptable alternative.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 tub
19、ing insulation shallbe 614 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
20、 the pipe insulation shall 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, wh
21、ichever is greater, at all 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
22、glass pipe and tubing insulation 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 exc
23、eption.8.2 Fabrication adhesive 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
24、 ofthe type and grade specified 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 norshal
25、l any adhered joint exceed116 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 J
26、oints for Segmented FabricationBond 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” st
27、art at the outside circumference 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) thic
28、k. (See Fig. 3 and Fig. 4)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 Bo
29、nd joints which meet other 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).8.4.8 For pipe insulation that is designed for pipe s
30、izes 6 in.(152 mm) and under, there shall not be more than onefabrication joint per half section.FIG. 1 Circular Cut Segmented Pipe InsulationC1639 10a28.4.9 Pipe insulation that is designed for pipe sizes greaterthan 6 in. (152 mm) and less than 18 in. (457mm) shall nothave more than three fabricat
31、ion joints per half section.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 c
32、onform to the requirements 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.8.5 Segmented Pipe Insulation Considerations:8.5.1 All segmented pipe insulation shall be edge trimmedat the fabrication
33、 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 patternscaused by flexing blade where needed.8.6 Fitting Insulation Considerations:8.6.1 Fittings for
34、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 InsulationFIG. 3 Non-through JointsFIG. 4 Through JointsC1639 10a38.6.3 Acceptable adhesive for fittings
35、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 in the manufacturer/fabricators standard commercial containers.9.2 MarkingUnless otherwise sp
36、ecified, 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 material in the container.9.2.2 Special ShapesThe name of the manufacturer/fabricator, shape, gra
37、de, 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 rights asserted in connection with any item mentionedin this standard. Users of this standard are
38、 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 responsible technical committee and must be reviewed every five years andif not r
39、evised, 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
40、 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 ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United
41、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 10a4
