1、Designation: C1710 11C1710 15Standard Guide forInstallation of Flexible Closed Cell Preformed Insulation inTube and Sheet Form1This standard is issued under the fixed designation C1710; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisio
2、n, the year of 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 guide covers recommended installation techniques for flexible closed cell pre-formed insulation in
3、 tube or sheet form.This guide is applicable to materials manufactured in accordance with Specification C534 (Elastomeric based insulation) orSpecification C1427 (polyolefin based insulation). The materials covered in this guide encompass a service temperature of -297Fto 300F ( -183C to 150 C) as in
4、dicated in the material specifications referenced above. Many of the recommendations madeare specific to below ambient applications only.1.2 The purpose of this guide is to optimize the thermal performance and longevity of installed closed cell flexible insulationsystems. By following this guide, th
5、e owner, and designer can expect to achieve the energy savings expected and prevention ofcondensation under the specified design conditions. This document is limited to installation procedures and does not encompasssystem design.1.3 The values stated in inch-pound units are to be regarded as standar
6、d. 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 use. It is the responsibilityof the user of this sta
7、ndard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC534 Specification for Preformed Flexible Elastomeric Cellular Thermal Insulation
8、 in Sheet and Tubular FormC585 Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and TubingC1427 Specification for Extruded Preformed Flexible Cellular Polyolefin Thermal Insulation in Sheet and Tubular Form2.2 Other Standards:National Commerical, Industrial Insu
9、lation Standards (MICA Manual)3ASHRAE Handbook (Fundamentals Chapter 26)4ASHRAE Handbook (Refrigeration Chapter 33)43. Terminology3.1 DefinitionsC168 shall be considered as applying to the terms in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 seamsLongitudinal or horiz
10、ontal cross-sections where insulation meets and must be adhered to itself or other systemcomponents.3.2.2 butt jointsCross-sections where two pieces of tubular or sheet insulation must be adhered to itself or other systemcomponents.1 This guide is under the jurisdiction of ASTM Committee C16 on Ther
11、mal Insulation and is the direct responsibility of Subcommittee C16.40 on Insulation Systems.Current edition approved Sept. 1, 2011Sept. 15, 2015. Published October 2011December 2015. Originally approved in 2009. Last previous edition approved in 20092011as C171009. DOI:10.1520/C171011.11. DOI:10.15
12、20/C171015.2 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 MICA (Midwest Insulation Contract
13、ors Association) 16712 Elm Circle, Omaha, NE 68130. http:/www.micainsulation.org.4 Available from American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. (ASHRAE), 1791 Tullie Circle, NE, Atlanta, GA 30329,http:/www.ashrae.org.This document is not an ASTM standard and is int
14、ended 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 recommends that users consult prior editions as appropriate. In all cases only the curr
15、ent 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 States13.2.3 vapor (water) stopsLocations / methods to prevent water or water vapor from traveling into
16、 or down a tubular pipesection.from one pipe insulation section to an adjacent insulation and prevent water traveling down the annular space between thepipe insulation and the tubular pipe.3.2.4 sleeving/multi layeringApplying another layer of insulation over the first layer. This process is used wh
17、en the insulationthickness required is greater than that which is commercially available. This technique is also employed when proper installationpractice requires multiple layers and or staggered joint application, even if a single layer thickness is available.4. Summary of Guide4.1 Proper insulati
18、on thickness shall be installed as specified and not compromised. The integrity of the insulation system shallbe maintained throughout the application. Never pull or stretch insulation, always push or over-size insulation.4.2 All seams, butt joints, cutouts and termination points shall be sealed wit
19、h a manufacturers approved adhesive to preventair/moisture intrusion. For below ambient applications, install vapor stops at all insulation terminations or interruptions, such asat supports, valves and flanges by This can be accomplished by several methods; by adhering the insulation directly to the
20、 pipeusing a 2 in. (50 mm) strip of contact adhesive or sealant to maintain closure. Insulationclosure, insulation tape can also be usedfor this purpose by wrapping it around the pipe. A vapor barrier mastic or tape can also be used for this purpose. On straight runs,install vapor stops every 18 ft
21、(5.4 m) to minimize moisture problems if they occur.4.3 Specific product Manufacturers recommended installation practices shall be used in all cases.4.4 Product should be applied to clean, dry surfaces. If the system is operating, additional steps may be needed to insure aproper installation.4.5 Aco
22、ating, jacket, cladding or appropriate protection shall be used where mechanical abuse or damage is expected. Outdoorapplications may require special consideration refer to the manufacturers recommendations.4.6 For satisfactory performance, properly installed protective vapor retarders/barriers and
23、vapor stops must be used on highrelative humidity and below ambient temperature applications to reduce movement of moisture through or around the insulationto the colder interior surface.5. Significance and Use5.1 This guide applies to flexible closed cell insulation tubing and sheet materials manuf
24、actured according to Specification C534and Specification C1427. This standard is intended to provide a basic guide for installing these types of materials.5.2 Confirm application use temperature is consistent with specified use temperature for material as defined in ASTMSpecifications unless otherwi
25、se agreed upon with the manufacturer. There are different grades for each of the insulation typesreferred to in this guide, material and grade installed should be that specified.5.3 This guide is not intended to cover all aspects associated with installation for all applications, consult the Nationa
26、l,Commercial Industrial Insulation Standards (MICA Manual) or the specific product manufacturer for recommendations, or both.(See ASHRAE Handbook (Fundamentals Chapter 26) and ASHRAE Handbook (Refrigeration Chapter 33)6. Workmanship, Finish and Appearance6.1 The insulation shall have no visible defe
27、cts that will adversely affect its performance or appearance. Materials shall be keptclean and dry until used. Use good quality tools at all times. Ensure cleanliness of insulation products, pipe work, vessels, fittingsand tools.Avoid dust, dirt, oil or water on surfaces and equipment. It is recomme
28、nded to apply insulation to a system which is notin operation. If insulation must be applied to a system that is operating, special precautions must be taken to prevent condensationfrom being trapped in the insulation envelope. Never stretch insulation to fit. Specified dimensions for the inner diam
29、eter (ID) andwall thickness shall be adhered to.7. Dimensional Tolerances7.1 Dimensions for the ID, wall and length shall conform to tolerances published by the manufacturer and or applicableASTMstandards, for example Specifications C534, C1427 and Practice C585. can be used to determine the outer d
30、iameter of theinsulation for sizing jacketing and fitting dimensions.8. General Installation Recommendations8.1 All seams, butt joints, cut outs and termination points should be sealed with a manufacturers approved system. Externaltaping of seams is not recommended as an exclusive method of sealing
31、joints or seams for below ambient systems. Approvedadhesives can be: contact adhesives, spray adhesives or pressure sensitive adhesives. Water based adhesives are not recommendedbecause of their slow drying time which causes them to pull apart. Adhesives should be applied according to manufacturersr
32、ecommendations. A thinner layer of adhesive is best, with 100% coverage on both surfaces. Always keep adhesives stirredthoroughly.Allow solvents to dissipate before combining two surfaces. This will be determined by time, temperature and adhesivetype. Ensure all seams are aligned, tight, and are com
33、pletely sealed.C1710 1528.2 The specified insulation thickness should be maintained throughout the installation. When using unslit tubular insulation onpipe work being installed, the insulation should be slid/pushed on the pipe, never pulled as this will stretch and thin the insulation.The insulatio
34、n is not to be stretched to fit. All insulation should be installed under slight compression to ensure a snug fit.Accommodations need to be made to prevent the insulation from being compressed by weight; that is, pipe hangers. Forapplications where the pipe work is already installed, the insulation
35、must be slit and adhesive applied or pre-slit/pre-gluedinsulation used.8.3 Install insulation on systems that are dry, at room temperature and already pressure tested.8.4 Use miter boxes or templates for making accurate cuts. See Fig. 1. Keep to correct dimensions. Do not cut the insulationshort and
36、 stretch it to fit the space.8.5 Slide insulation on straight piping runs whenever possible to reduce seams. If insulation must be slit to apply to piping, slitin a straight line. On large ID insulation where the material may be oval shaped, slit along the flat side (top or bottom) not alongthe edge
37、 for a better fitting seam. Refer to 8.2.9. Hazards9.1 Use good quality tools and keep working area and materials clean. Keep cutting tools sharp. Recommend non-serrated edgedsteel knife which can be sharpened.9.2 Use appropriate protective equipment, that is. Safety glasses and safe practices when
38、installing the material.9.3 Provide suitable ventilation when working with solvent based adhesives.10. Recommendations for Specific Installation Situations10.1 Straight Pipe Section unjoinedSlide insulation along the pipe work for straight runs. Seal all butt joints, cut outs andtermination points.
39、See Fig. 2.10.1.1 Slit tube in a straight line (Fig. 3). Apply a thin brush coat of contact adhesive to each seam. Slip the insulation over thepipe.Allow adhesive to properly set and press seams together at each end working toward the center. Seal all butt joints, cut outsand termination points with
40、 adhesive.10.1.2 Use pre-slit/pre-glued insulation. (Insulation pre-slit with factory applied pressure sensitive adhesive (PSA). See Fig. 4.Be sure application temperature and manufacturers installation temperature recommendations are in accordance.adhered to.10.2 90 elbows: Fittings: There are many
41、 types of fittings; pipe fittings, screwed fittings etc. See Fig. 5.NOTE 1As an alternative to field fabricated fittings, factory manufactured fittings are available for many configurations.10.2.1 Fabricate 90 elbows from straight tubing. Cut the insulation at 45 angle. Reverse the pieces by 180 to
42、each other. SeeFig. 56. Apply contact adhesive to both faces and press firmly together when properly set. Slit open the formed bend by cuttingthrough the throat or heel of fitting.Apply brush coat of contact adhesive to both longitudinal seams of the fabricated fitting. Placeover bend and press seam
43、s firmly together. See Fig. 67. Fabricate 45s in a similar manner.FIG. 1 USE Miter Box For Making CutsC1710 15310.2.2 Optional (but not optimal) MethodSlide insulation around 90. The product should be pushed, not pulled around the 90.Although sliding the insulation around a 90 is a technique that is
44、 used in the field, it is not recommended as the insulation thicknesswill be compromised (thinned) and condensation may occur on the outside edge as a result.10.2.3 TeeFabricate tee by cutting a V notch (45; cut ) from straight section. Cut end of adjoining piece at 45 angle to fitinto notch of sect
45、ion above. Apply contact adhesive to all cut faces, when properly dried, press fit insulation sections firmlytogether. Slit open the completed fitting section, apply contact adhesive to all exposed insulation wall faces, place cover over teewhen adhesive is properly set and apply pressure to bond th
46、e fitting insulation. See Fig. 8.10.2.4 ValvesIn all cases, insulate as close to the fitting or valve as possible with straight tubing. Then insulate over or aroundthe fitting or valve by sleeving appropriately sized insulation or flat sheet over the straight sections to create the correct build upo
47、f insulation. Seal all cutouts by adhering the insulation ( with contact adhesive) to the pipe or body being insulated to preventair (with moisture) or condensation intrusion into the system. See Figures Fig. 8 and Fig. 9.10.3 Tee and ValveFabricate tee by cutting a V notch (45; cut ) from straight
48、section. Cut end of adjoining piece at 45 angleto fit into notch of section above. Apply contact adhesive to all cut faces, when properly dried, press fit insulation sections firmlytogether. Slit open the completed fitting section, apply contact adhesive to all exposed insulation wall faces, place c
49、over over teewhen adhesive is properly set and apply pressure to bond the fitting insulation. See Fig. 7.10.4 FittingsThere are several types of fittings: pipe fittings, screwed tee piece fittings (see Fig. 8)10.4.1 ValvesIn all cases, insulate as close to the fitting or valve as possible with straight tubing. Then insulate over or aroundthe fitting or valve by sleeving appropriately sized insulation or flat sheet over the straight sections to create the correct build upof insulation. Seal all cutouts by adhering the insulation (
