ASTM C1146-09
(Guide)Standard Guide for Prefabricated Panel and H–bar Insulation Systems for Vessels, Ducts and Equipment Operating at Temperatures Above Ambient Air
Standard Guide for Prefabricated Panel and H<span class='unicode'>–</span>bar Insulation Systems for Vessels, Ducts and Equipment Operating at Temperatures Above Ambient Air
SIGNIFICANCE AND USE
The purpose of this guide is to ensure that a functional system will result when considering the use of prefabricated panel or H-bar insulation systems. Both systems require a varying degree of pre-engineering and prefabrication so that the insulation will produce the specified thermal, mechanical and environmental design requirements Both the prefabricated panels and H-bar systems which can also be used in combination with each other are to be designed to:
Limit loss of heat from insulated surface.
Limit exposed surface temperatures for burn protection of personnel.
Maintain optimum temperatures of the insulated equipment at or above a specified minimum value required for the proper operation of the equipment.
Produce a system or assembly that is designed to provide allowance for thermal expansion; is structurally adequate; is of a weathertight construction; and incorporates design features that promote efficient removal for inspection, repair and maintenance where required.
SCOPE
1.1 This guide describes design, fabrication, shipping, handling, jobsite storage, and installation of prefabricated panel and H-Bar insulation systems for vessels, ducts, and equipment operating at temperatures above ambient. Typical applications include, but are not limited to, air and gas ducts, steam generating units, air quality control systems, fans, storage tanks, process vessels, and coke drums
1.2 The insulation described herein is limited to systems consisting of insulating units specially designed to fit the surfaces to be insulated, and engineered for the service and environmental requirements. The insulation unit may also include special design features which facilitate the removal and replacement for maintenance and inspection.
1.3 When prefabricated panels are used, each insulation unit factory preassembled and typically comprised of the insulation, an outer lagging to which the insulation is attached, an inner retaining wire mesh, optional foil lining, and means for mechanically securing multiple units together in an assembly.
1.4 H-bar systems represent insulation units that are typically comprised of the insulation, outer lagging and a uniquely configured subgirt design which both supports the insulation and provides a means for mechanically securing multiple units together in an assembly. The design of the subgirt creates an “H” configuration which is fabricated from light gauge sheet metal. The subgirt components consist of: (1) a “J-bar” shape which frames the perimeter edges of the surface to be insulated, holds the insulation in place along the outer edge and provides a screen attachment point for the outer lagging; (2) the “H-bar” shape is placed at defined intervals. The web section of the “H-bar” supports the insulation while the exterior flange allows for the outer lagging to be attached with threaded fasteners.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 1—When prefabricated panel or H-Bar insulation systems are specified, Test Methods C 167, C 177 and C 1061, Material Specifications A 36/A 36M, A 463/A 463M, B 209, C 612, and Terminology C 168 should be considered.
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Designation: C1146 − 09
StandardGuide for
Prefabricated Panel and H–bar Insulation Systems for
Vessels, Ducts and Equipment Operating at Temperatures
1
Above Ambient Air
This standard is issued under the fixed designation C1146; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.5 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
1.1 This guide describes design, fabrication, shipping,
conversions to SI units that are provided for information only
handling, jobsite storage, and installation of prefabricated
and are not considered standard.
panel and H-Bar insulation systems for vessels, ducts, and
1.6 This standard does not purport to address all of the
equipment operating at temperatures above ambient. Typical
safety concerns, if any, associated with its use. It is the
applications include, but are not limited to, air and gas ducts,
responsibility of the user of this standard to establish appro-
steam generating units, air quality control systems, fans,
priate safety and health practices and determine the applica-
storage tanks, process vessels, and coke drums
bility of regulatory limitations prior to use.
1.2 The insulation described herein is limited to systems
NOTE 1—When prefabricated panel or H-Bar insulation systems are
consisting of insulating units specially designed to fit the
specified, Test Methods C167, C177 and C1061, Material Specifications
surfaces to be insulated, and engineered for the service and
A36/A36M, A463/A463M, B209, C612, and Terminology C168 should
environmental requirements. The insulation unit may also
be considered.
includespecialdesignfeatureswhichfacilitatetheremovaland
2. Referenced Documents
replacement for maintenance and inspection.
2
2.1 ASTM Standards:
1.3 When prefabricated panels are used, each insulation unit
A36/A36M Specification for Carbon Structural Steel
factorypreassembledandtypicallycomprisedoftheinsulation,
A463/A463M Specification for Steel Sheet, Aluminum-
an outer lagging to which the insulation is attached, an inner
Coated, by the Hot-Dip Process
retaining wire mesh, optional foil lining, and means for
B209 Specification for Aluminum and Aluminum-Alloy
mechanically securing multiple units together in an assembly.
Sheet and Plate
1.4 H-bar systems represent insulation units that are typi-
C167 Test Methods for Thickness and Density of Blanket or
cally comprised of the insulation, outer lagging and a uniquely
Batt Thermal Insulations
configured subgirt design which both supports the insulation
C168 Terminology Relating to Thermal Insulation
and provides a means for mechanically securing multiple units
C177 Test Method for Steady-State Heat Flux Measure-
together in an assembly. The design of the subgirt creates an
ments and Thermal Transmission Properties by Means of
“H” configuration which is fabricated from light gauge sheet
the Guarded-Hot-Plate Apparatus
metal. The subgirt components consist of: (1) a “J-bar” shape
C612 Specification for Mineral Fiber Block and Board
which frames the perimeter edges of the surface to be
Thermal Insulation
insulated,holdstheinsulationinplacealongtheouteredgeand
C1061 Test Method for Thermal Transmission Properties of
providesascreenattachmentpointfortheouterlagging; (2)the
Non-Homogeneous Insulation Panels Installed Vertically
“H-bar”shapeisplacedatdefinedintervals.Thewebsectionof 3
(Withdrawn 1995)
the “H-bar” supports the insulation while the exterior flange
3. Terminology
allows for the outer lagging to be attached with threaded
fasteners.
3.1 Terminology C168 shall be considered as applying to
the terms in this specification.
1 2
This guide is under the jurisdiction of ASTM Committee C16 on Thermal For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Insulation and is the direct responsibility of Subcommittee C16.40 on Insulation contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Systems. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved June 1, 2009. Published August 2009. Originally the ASTM website.
3
approved in 1989. Last previous edition approved in 2003 as C1146 – 03. DOI: The last approved version of this historical standard is referenced on
10.1520/C1146-09. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C1146 − 09
3.2 Definitions of Terms Specific to This Standard: the insulation will produce the spec
...
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. Because
it 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 current version
of the standard as published by ASTM is to be considered the official document.
Designation:C1146–96 (Reapproved 2003) Designation:C1146–09
Standard Guide for
Prefabricated Panel and H–bar Insulation Systems for
Vessels, Ducts and Equipment Operating at Temperatures
1
Above Ambient Air
This standard is issued under the fixed designation C 1146; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1This guide describes construction and installation of prefabricated panel insulation systems for vessels, ducts, and equipment
operating at temperatures above ambient. Typical applications include, but are not limited to, power plant ducts, steam generating
units, precipitators, bag houses, fans, refinery storage tanks, process vessels, and coke drums.
1.2The insulation described herein is limited to systems consisting of insulating units specially designed to fit the surfaces to
be insulated, and engineered for the service requirements.
1.3Each insulation unit is a prefabricated construction typically comprised of insulation, an outer lagging to which the insulation
is attached, an inner metal mesh and foil lining, and means for securing multiple units together in an assembly.
1.4
1.1 This guide describes design, fabrication, shipping, handling, jobsite storage, and installation of prefabricated panel and
H-Bar insulation systems for vessels, ducts, and equipment operating at temperatures above ambient. Typical applications include,
but are not limited to, air and gas ducts, steam generating units, air quality control systems, fans, storage tanks, process vessels,
and coke drums
1.2 The insulation described herein is limited to systems consisting of insulating units specially designed to fit the surfaces to
be insulated, and engineered for the service and environmental requirements. The insulation unit may also include special design
features which facilitate the removal and replacement for maintenance and inspection.
1.3 When prefabricated panels are used, each insulation unit factory preassembled and typically comprised of the insulation, an
outer lagging to which the insulation is attached, an inner retaining wire mesh, optional foil lining, and means for mechanically
securing multiple units together in an assembly.
1.4 H-bar systems represent insulation units that are typically comprised of the insulation, outer lagging and a uniquely
configured subgirt design which both supports the insulation and provides a means for mechanically securing multiple units
together in an assembly. The design of the subgirt creates an “H” configuration which is fabricated from light gauge sheet metal.
The subgirt components consist of: (1) a “J-bar” shape which frames the perimeter edges of the surface to be insulated, holds the
insulation in place along the outer edge and provides a screen attachment point for the outer lagging; (2) the “H-bar” shape is
placed at defined intervals. The web section of the “H-bar” supports the insulation while the exterior flange allows for the outer
lagging to be attached with threaded fasteners.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
NOTE1—When prefabricated panel systems are specified,Test Methods C167, C177, and C1061, andTerminology C168 1—When prefabricated panel
or H-Bar insulation systems are specified, Test Methods C 167, C 177 and C 1061, Material Specifications A 36/A 36M, A 463/A 463M, B 209, C 612,
and Terminology C 168 should be considered.
2. Referenced Documents
2
2.1 ASTM Standards:
A 36/A 36M Specification for Carbon Structural Steel
1
This guide is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.40 on Insulation Systems.
Current edition approved April 10, 2003. Published July 2003. Originally approved in 1989. Last previous edition approved in 1996 as C1146–96.
Current edition approved June 1, 2009. Published August 2009. Originally approved in 1989.
...
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. Because
it 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 current version
of the standard as published by ASTM is to be considered the official document.
Designation:C1146–96 (Reapproved 2003) Designation:C1146–09
Standard Guide for
Prefabricated Panel and H–bar Insulation Systems for
Vessels, Ducts and Equipment Operating at Temperatures
1
Above Ambient Air
This standard is issued under the fixed designation C 1146; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1This guide describes construction and installation of prefabricated panel insulation systems for vessels, ducts, and equipment
operating at temperatures above ambient. Typical applications include, but are not limited to, power plant ducts, steam generating
units, precipitators, bag houses, fans, refinery storage tanks, process vessels, and coke drums.
1.2The insulation described herein is limited to systems consisting of insulating units specially designed to fit the surfaces to
be insulated, and engineered for the service requirements.
1.3Each insulation unit is a prefabricated construction typically comprised of insulation, an outer lagging to which the insulation
is attached, an inner metal mesh and foil lining, and means for securing multiple units together in an assembly.
1.4
1.1 This guide describes design, fabrication, shipping, handling, jobsite storage, and installation of prefabricated panel and
H-Bar insulation systems for vessels, ducts, and equipment operating at temperatures above ambient. Typical applications include,
but are not limited to, air and gas ducts, steam generating units, air quality control systems, fans, storage tanks, process vessels,
and coke drums
1.2 The insulation described herein is limited to systems consisting of insulating units specially designed to fit the surfaces to
be insulated, and engineered for the service and environmental requirements. The insulation unit may also include special design
features which facilitate the removal and replacement for maintenance and inspection.
1.3 When prefabricated panels are used, each insulation unit factory preassembled and typically comprised of the insulation, an
outer lagging to which the insulation is attached, an inner retaining wire mesh, optional foil lining, and means for mechanically
securing multiple units together in an assembly.
1.4 H-bar systems represent insulation units that are typically comprised of the insulation, outer lagging and a uniquely
configured subgirt design which both supports the insulation and provides a means for mechanically securing multiple units
together in an assembly. The design of the subgirt creates an “H” configuration which is fabricated from light gauge sheet metal.
The subgirt components consist of: (1) a “J-bar” shape which frames the perimeter edges of the surface to be insulated, holds the
insulation in place along the outer edge and provides a screen attachment point for the outer lagging; (2) the “H-bar” shape is
placed at defined intervals. The web section of the “H-bar” supports the insulation while the exterior flange allows for the outer
lagging to be attached with threaded fasteners.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
NOTE1—When prefabricated panel systems are specified,Test Methods C167, C177, and C1061, andTerminology C168 1—When prefabricated panel
or H-Bar insulation systems are specified, Test Methods C 167, C 177 and C 1061, Material Specifications A 36/A 36M, A 463/A 463M, B 209, C 612,
and Terminology C 168 should be considered.
2. Referenced Documents
2
2.1 ASTM Standards:
A 36/A 36M Specification for Carbon Structural Steel
1
This guide is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.40 on Insulation Systems.
Current edition approved April 10, 2003. Published July 2003. Originally approved in 1989. Last previous edition approved in 1996 as C1146–96.
Current edition approved June 1, 2009. Published August 2009. Originally approved in 1989.
...
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