ASTM C1639-2017 Standard Specification for Fabrication Of Cellular Glass Pipe And Tubing Insulation《多孔玻璃管和管绝缘制造的标准规格》.pdf

1、Designation: C1639 16C1639 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

2、last revision. 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 for cellular glass block into billets to fabricate pipe and tubing in

3、sulation.All materials shall be in accordance with Specification C552.1.2 The purpose of this specification is to optimize the thermal performance of installed cellular glass insulation systems. Thisis best achieved by limiting the number of joints, in particular through joints.1.3 The values stated

4、 in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its us

5、e. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardization

6、established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC450 Practi

7、ce for Fabrication of Thermal Insulating Fitting Covers for NPS Piping, and Vessel LaggingC552 Specification for Cellular Glass Thermal InsulationC585 Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and TubingD312 Specification for Asphalt Used in Roofing2.2 AS

8、TM Adjuncts:3ADJC0450A ASTM Recommended Dimensional Standards for Fabrication of Thermal Insulation Fitting Covers3. Terminology3.1 Terminology C168 shall be considered as applying to the terms in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 billet / buna single piece

9、of insulation made up from a number of smaller blocks held together with an adhesive.3.2.2 lagspieces of insulation typically curved or tapered used for insulating pipes, tanks and other cylindrical equipment.3.2.3 precision cut V-grooved pipe insulation, nrigid insulation pieces cut into 4-sided po

10、lygons, of two parallel surfaces andtwo non-parallel surfaces of equal angles = 180 / N, such that when N number of these sections are assembled, they form anapproximate circle and can be installed around a pipe.3.2.3.1 Discussion1 This specification is under the jurisdiction of ASTM Committee C16 o

11、n Thermal Insulation and is the direct responsibility of Subcommittee C16.40 on InsulationSystems.Current edition approved Sept. 1, 2016April 15, 2017. Published October 2016April 2017. Originally approved in 2007. Last previous edition approved in 20102016 asC1639 10a.C1639 16. DOI: 10.1520/C1639-1

12、6.10.1520/C1639-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from ASTM International Headqu

13、arters. Order Adjunct No. ADJC0450A.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM rec

14、ommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1The adjectiv

15、e precision refers to the fact that when these N sections are installed onto a pipe, they fit exactly with no appreciablegaps between sections.3.2.4 bond joint, nthe joint formed by the adhered mating surfaces of several thicknesses of cellular glass block or fabricatedcellular glass insulation piec

16、es that are used to create a cellular glass insulation billet, bun, or pipe and tubing insulation segments.See Fig. 1.3.2.4.1 DiscussionA bond joint is created during the fabrication of cellular glass pipe and tubing insulation and is made with a full depth (100 %coverage) of an approved adhesive. (

17、See 3.2.1 and 8.4).3.2.5 fabrication joints see bond joint, nthe joint between adhered mating surfaces of cellular glass pipe and tubinginsulation segments formed by fabricated segments or sections of cellular glass insulation that are assembled in the fabricationshop, facility, or jobsite, to produ

18、ce the cellular glass pipe and tubing insulation. See Figs. 2-4.3.2.5.1 DiscussionA fabrication joint is created at a fabrication shop or facility and is made with a full depth (100 % coverage) of an approvedadhesive.3.2.6 field joints, nmating surfaces of cellular glass insulation created during th

19、e installation process.FIG. 1 Cellular Glass Insulation BilletFIG. 2 Non-through JointsFIG. 3 Through Joints FIG. 4 90 Joint IntersectionC1639 1723.2.6.1 DiscussionField joints shall be formed with full depth adhesive, full depth of sealant or from the mating surfaces of the cellular glassinsulation

20、.3.2.7 non-through joints, nbond or fabrication joints that start at the outside circumference of fabricated insulation and runcontinuously in a straight line to the opposite side terminating at the outside circumference of the pipe insulation. (See Fig. 2.)3.2.7.1 DiscussionNon-through joints do no

21、t intersect the pipe insulations inside diameter (ID).3.2.8 through joints, nbond or fabrication joints that start at the outside circumference of fabricated insulation and runcontinuously in a straight line through the fabricated piece and terminates at the pipe insulations inside diameter (ID) (Se

22、e Fig.3.)3.2.8.1 DiscussionThrough joints intersect the pipe/insulation interface.3.2.9 beveled lag, nrigid insulation pieces cut into isosceles trapezoid shape used to form a 360 circle that is installed aroundpipe or tubing.3.2.9.1 DiscussionBeveled lags differ from precision cut V-grooved in that

23、 pieces are a minimum of 8 in. (203 mm) wide and are not bonded to ascrim, 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

24、visible defects that will adversely affect its performance.6. Standard Sizes, Dimensions, and Fabrication Configurations of Cellular Glass Pipe and Tubing Insulation6.1 Cellular glass pipe and tubing insulation shall be fabricated in lengths as agreed to by the purchaser and the supplier. Typicallen

25、gths are 2312 in. (597 mm), 2358 in. (600 mm), 24 in. (610 mm), 3512 in. (902 mm), or 36 in. (914 mm).6.2 Cellular glass pipe and tubing insulation with outer diameters that are 658 in. (168 mm) shall be made to a minimumthickness of 1-in. (25 mm). Pipe insulation with outer diameter that is 658 in.

26、 (168 mm) shall be made to a minimum 1 12-in.(38 mm) thickness. Sizes shall conform to Practice C585.6.3 Cellular glass pipe insulation with outer diameters that are 30 in. (762 mm) shall be furnished as curved sidewallsegments (see Fig. 5) which shall be fabricated in equal size segments such that

27、no additional field cuts are required.with theexception of the final or key piece which will be field trimmed if needed to ensure proper fit and closure.6.6 For operating temperatures above ambient, circular cut segmented fabrication as shown in Fig. 5, beveled lags, or precisioncut V-grooved pipe i

28、nsulation, as shown in Fig. 6, specifically cut to fit the required diameter, are acceptable alternatives.7. Dimensional Tolerances7.1 Fabrication tolerances for the bore diameter and wall thickness shall be as specified in Practice C585.7.2 Cellular glass pipe and tubing insulation shall be edged-t

29、rimmed in at the fabrication site to provide flat mating surfaces foroptimal field joint closure.7.3 Tolerance for length of pipe and tubing insulation shall be 614 in. (66 mm).7.4 The following dimensional tolerances apply only to cellular glass pipe and tubing insulation applied in half sections:C

30、1639 1737.4.1 Fit and ClosureWhen fitted to the appropriate size pipe by banding on 9 in. (230 mm) centers, the longitudinal jointson both sides of the pipe insulation shall close to within 116 in. (1.6 mm) along the entire length of the section.7.4.2 ConcentricityThe inner bore of the pipe insulati

31、on shall be concentric with the outer cylindrical surface. Deviation fromconcentricity shall not exceed 18 in. (3.2 mm) at all points.7.4.3 Half-Section Balancethe plane formed by the slit between half sections shall include the cylindrical axis. Deviation ofthe split plane from the cylindrical axis

32、 over a 24-in. (610-mm) length shall not exceed 18 in. (3.2 mm).7.4.4 Multi-layer cellular glass pipe and tubing insulation shall be fabricated to the tolerances in 7.4.1 7.4.3 so that layers nestand close to within 116 in. (1.6 mm) along the entire length of the sections.8. Fabrication Standards8.1

33、 Cellular glass pipe and tubing insulation shall be fabricated from the minimum number of insulation blocks that is practical.8.2 Bond joint and fabrication adhesive for below ambient temperatures 297F (183C) shall be hot asphalt, SpecificationD312, Type II, III, or IV, or manufacturer approved low

34、permeability 0.01 perm-in. (0.015 ng/Pasm) alternative.8.3 Fabricating adhesive shall be applied such that there is 100 % coverage of adhesive on the mating surfaces.8.4 There shall be no visible voids in the adhered joint nor shall any adhered joint exceed 116 in. (1.6 mm) in width.8.5 Insulation b

35、locks or sections shall be hand rubbed if necessary and the dust removed to fit cellular glass insulation blocktogether prior to bonding.8.6 For operating temperatures at or below 297F (183C), the potential for oxygen condensation exists. In such situations,when required by the client, the use of in

36、organic fabrication adhesives is acceptable for bond joints, fabrication joints, and fieldjoints of the inner layer insulation of these systems. The bond joints, fabrication joints, and field joints of the outer insulation layershall be hot asphalt, Specification D312, Type II, III, or IV, or manufa

37、cturer approved low permeability 0.01 perm-in. (0.015ng/Pasm) alternative.8.7 For operating temperatures above ambient, fabrication adhesive shall include but not be limited to gypsum-based cementof the type and grade specified by the cellular glass insulation manufacturer. Adhesives shall be suitab

38、le for specified designconditions.8.8 Fabrication joints on the inside and outside diameter of fabricated pieces shall be smooth and consistent with the shape ofthe fabricated pieces. Care shall be taken that adhesive is not recessed or extended from the dimension of the fabricated half-sectionor se

39、gment more than 132 in. (0.8 mm).FIG. 5 Circular Cut Segmented Pipe InsulationFIG. 6 Precision Cut V-Grooved Segmented Pipe InsulationC1639 1748.9 Bond or fabrication joints which meet other bond joints must meet at 90 angles, must be a minimum of 1 in. (25.4 mm)in length and shall not cross. (See F

40、ig. 4).8.10 Fabricated sections of insulation shall be a minimum of 12 in. (12.7 mm) thick. (See Fig. 2 and Fig. 3).8.11 Beveled Lags and Precision Cut V-Groove Considerations:8.11.1 Beveled lags and precision cut V-groove shall not be used for below ambient applications.8.11.2 Beveled lags shall co

41、ntain 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 Segmented pipe insulation shall be fabricated in equal widths with the exception of the

42、final or key piece which will befield trimmed if needed to ensure proper fit and closure.8.12.2 Segmented pipe insulation shall be a minimum of 8 in. (203 mm) wide when measured at the outer insulation face.8.13 Quarter Section ConsiderationsQuarter section insulation fabricated to have an installed

43、 outer diameter that is 15 34in. (400 mm) and 30 in. (762 mm) shall have no more than two through-joints per quarter section.8.14 Fitting Insulation Considerations:8.14.1 Fittings for all sizes shall be either factory ground or factory mitered.8.14.2 Fittings shall be fabricated to meet the dimensio

44、nal standards of ADJC0450A Adjunct3.8.14.3 Acceptable adhesive for fittings shall be as specified in 8.2 8.6.8.15 Multiple Layer Insulation Considerations:8.15.1 Cellular glass pipe and tubing insulation fabricated for multiple layer systems shall be fabricated using the sameconfiguration requiremen

45、ts in Section 6.8.15.2 Cellular glass fitting insulation fabricated for multiple layer systems shall be fabricated so that joints of each insulationlayer are offset from the previous insulation layer when agreed to by the fabricator and purchaser.9. Packaging and Marking9.1 PackagingUnless otherwise

46、 agreed and specified between the purchaser and the manufacturer or supplier, the cellularglass insulation shall be packaged in the manufacturer/fabricators standard commercial containers. Pipe and tubing half sections,segments, fittings, etc. must be separated from each other (prevent contact with

47、other pieces) using kraft paper or equal whenpackaged.9.2 MarkingUnless otherwise specified, each container shall be plainly marked as follows:9.2.1 Pipe and Tubing InsulationThe name of the cellular glass manufacturer, the name, location, and address of thefabricator, the product name, pipe size, g

48、rade, quantity, nominal thickness, and jacket if applicable shall be included on thecontainer. In addition, container markings shall include the fabricator lot number or code date identification of the material in thecontainer. When specified in the purchase order or contract and when agreed to by t

49、he seller, each container shall also be markedwith appropriate ASTM specification alphanumeric number, type, category, and grade when applicable.9.2.2 Special ShapesThe name of the cellular glass manufacturer, the name, location, and address of the fabricator, the productname, pipe size, shape, grade, quantity, nominal thickness, and jacket if applicable shall be included on the container. In addition,container markings shall include the fabricator lot or code date identification of the material in