1、Designation: C 1639 07Standard Specification forFabrication Of Cellular Glass Pipe And Tubing Insulation1This standard is issued under the fixed designation C 1639; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last r
2、evision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 tubinginsulatio
3、n. All materials shall be in accordance with Specifi-cation C 552.1.2 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 in
4、ch-pound units are to be regardedas the standard. The values given in the parentheses areprovided for information only.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-pri
5、ate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 168 Terminology Relating to Thermal InsulationC 450 Practice for Fabrication of Thermal Insulating FittingCovers for NPS Piping, and Vessel LaggingC 55
6、2 Specification for Cellular Glass Thermal InsulationC 585 Practice for Inner and Outer Diameters of RigidThermal Insulation for Nominal Sizes of Pipe and Tubing(NPS System)D 312 Specification for Asphalt Used in Roofing2.2 ASTM Adjuncts:3ADJC0450A ASTM Recommended Dimensional Standardsfor Fabricati
7、on of Thermal Insulation Fitting Covers3. Terminology3.1 Terminology C 168 shall be considered as applying tothe terms in this specification.3.2 Definitions of Terms Specific to This Standard:3.3 billet / bun a single piece of insulation made up froma number of smaller blocks held together with an a
8、dhesive.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 non-parallel surfaces of equal angles =
9、 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 with no appreciable gaps between section
10、s.4. Classification4.1 Specification C 552 defines Type I and Type II materi-als. 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. Standard Sizes, Dimensions, an
11、d 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 mm).6.2 Cellular glass pipe and tubin
12、g 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 C 585.Aminimum 2in. (51 mm) thickness should be used for
13、pipe sizes larger than12 in. NPS (324 mm).6.3 Cellular glass pipe insulation must be provided in halfsections 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 i
14、nsulation for pipe sizes 14 in. (356mm) to 24 in. NPS (406 mm) must be fabricated in half-sections or in quarter-sections. At 26 in. NPS (660 mm) and1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.40 onInsu
15、lation Systems.Current edition approved April 1, 2007. Published May 2007.2For 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
16、ASTM website.3Available from ASTM International Headquarters. Order Adjunct No.ADJC0450A.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.above, segmented pipe insulation shall be furnished. Seg-mented pipe insulation (see Fig. 1) sha
17、ll be fabricated in equalwidths such that no additional field cuts are required.6.5 For operating temperatures above ambient, precision cutV-grooved pipe insulation specifically cut to fit the requireddiameter or segmented fabrication is an acceptable alternative.6.6 For operating temperatures betwe
18、en 0F (-18C) andambient, precision cut V-grooved pipe insulation, as shown onFig. 2, is an acceptable alternative provided an acceptablevapor retarder is used.6.7 For operating temperatures below 0 F (-18C),V-grooved material, as shown on Fig. 2 is not acceptable.7. Dimensional Tolerances7.1 Fabrica
19、tion tolerances for the bore diameter and wallthickness shall be as specified in Practice C 585.7.2 Tolerance for length of pipe and tubing 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.
20、3.1 Fit and Closure When 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.7.3.2 ConcentricityThe inner bore of the pipe insulationshall be
21、concentric with the outer cylindrical surface. Deviationfrom concentricity shall not exceed18 in. (3.2 mm) or 5% ofthe wall thickness, whichever 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
22、 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 insulation shall be fabri-cated from the minimum number of insulation blocks. Sec-tional pipe insulation shall contain not more than four9thr
23、ough9 joints per full section of insulation, excluding thehalf section mating plane (Fig. 3). Precision cut v-groovefabrication is an exception.8.2 Fabrication adhesive shall be hot asphalt, SpecificationD 312, Type II for operating temperatures below 250F(121C). For operating temperatures above amb
24、ient, fabrica-tion adhesive shall include but not be limited to Type II hotasphalt, elastomeric asphalt, or gypsum-based cement of thetype and grade specified by the insulation manufacturer.Adhesives shall be suitable for specified design conditions.8.2.1 Fabricating adhesive shall be applied such t
25、hat 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 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
26、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 FabricationBond jointsare defined as an adhesive joint in insulation for constructionpurposes:8.4.1 Are “Non-through” - start at the outside circumferenc
27、eand run continuously in a straight line to the opposite sideterminating at the outside circumference, or;8.4.2 Are through” start 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 joi
28、nts 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)8.4.5 Bond joints on the inside and outside diameter offabricated pieces shall be smooth and consistent with the shapeof the fabricated pieces. Car
29、e 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 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
30、 bond joints per halfsection or sidewall segment. (See Fig. 3 and Fig. 4).8.4.8 For pipe insulation 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
31、 mm) and less than 18 in. (457mm) shall nothave more than three fabrication 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.FIG. 1 Circular Cut Segmented Pipe InsulationC16390728.4
32、.11 Insulation curved sidewall segments shall have nomore than two bond joints per sidewall segment. These bondjoints shall conform to the requirements previously stated insections 8.4.1-8.4.6 of this standard.8.4.12 Beveled lags shall not be used for below ambientapplications. If beveled lags are s
33、pecified for above ambientapplications, they shall have no more than one fabrication jointper lag.8.5 Segmented Pipe Insulation 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 ins
34、ulation.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 all sizes shall be either factory ground orfactory mitered.8.6.2 Fittings shall be
35、 fabricated to meet the dimensionalstandards of ADJC0450A Adjunct3.8.6.3 Acceptable adhesive for fittings shall be as specified in8.2.FIG. 2 Precision Cut V-Grooved Segmented Pipe InsulationFIG. 3 Non-through JointsFIG. 4 Through JointsC16390739. Packaging and Marking9.1 PackagingUnless otherwise ag
36、reed 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 specified, each containershall be plainly marked as follows:9.2.1 Pipe and Tubing Insu
37、lationThe 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, grade, and quantity of the material in thecontainer.10. Keywords10.1 cellular glass; fa
38、brication; 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 expressly advised that determination of the validity of any such patent rights, and
39、 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 revised, either reapproved or withdrawn. Your comments are invited either for revisio
40、n 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 sho
41、uldmake 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 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).C1639074
