ASTM C585-10
(Practice)Standard Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and Tubing
Standard Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and Tubing
SIGNIFICANCE AND USE
The purpose of this practice is to ensure satisfactory fit on standard sizes, to accommodate radial expansion of pipes and tubes which are heated after being insulated, and to minimize the number of insulation sizes and thicknesses to be manufactured and stocked.
While it is possible to manufacturer insulation to these recommended dimensions, exercise care in attempting to nest layers of different materials, or layers supplied by different manufacturers. Individual manufacturing processes will operate at slightly different tolerances. While the product will fit the pipe, it is possible that it will not readily nest as the outer layer between the different materials, or with a different manufacturer, and possibly the same manufacturer. Exercise care to determine these differences before specifying or ordering nesting sizes.
The wide range of outer diameter dimensional tolerances will prevent many pipe and tube insulations from nesting for staggered joints or double layered applications, or both unless specified when ordered from the manufacturer, distributor, or fabricator.
4.4 Dimensions in accordance with this practice do not necessarily permit application of one thickness of pipe insulation over another (Nesting or Simplified Dimensional System) to obtain total thicknesses greater than those manufactured as single layer, or for multilayer application when desired.
SCOPE
1.1 This practice is intended as a dimensional standard for preformed thermal insulation for pipes and tubing.
1.2 This practice covers insulation supplied in cylindrical sections and lists recommended single layer inner and outer diameters of insulation having nominal wall thicknesses from ½ to 5 in. (13 to 127 mm) to fit over standard sizes of pipe and tubing.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values stated in SI units are provided for information only.
1.4 This standard does not purport to address 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.
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Designation: C585 − 10
StandardPractice for
Inner and Outer Diameters of Thermal Insulation for
1
Nominal Sizes of Pipe and Tubing
This standard is issued under the fixed designation C585; 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 minimize the number of insulation sizes and thicknesses to be
manufactured and stocked.
1.1 This practice is intended as a dimensional standard for
preformed thermal insulation for pipes and tubing.
4.2 While it is possible to manufacturer insulation to these
recommended dimensions, exercise care in attempting to nest
1.2 This practice covers insulation supplied in cylindrical
layers of different materials, or layers supplied by different
sections and lists recommended single layer inner and outer
manufacturers. Individual manufacturing processes will oper-
diameters of insulation having nominal wall thicknesses from
1 ate at slightly different tolerances.While the product will fit the
⁄2 to 5 in. (13 to 127 mm) to fit over standard sizes of pipe and
pipe, it is possible that it will not readily nest as the outer layer
tubing.
between the different materials, or with a different
1.3 The values stated in inch-pound units are to be regarded
manufacturer, and possibly the same manufacturer. Exercise
as the standard. The values stated in SI units are provided for
care to determine these differences before specifying or order-
information only.
ing nesting sizes.
1.4 This standard does not purport to address the safety
4.3 The wide range of outer diameter dimensional toler-
concerns, if any, associated with its use. It is the responsibility
ances will prevent many pipe and tube insulations from nesting
of the user of this standard to establish appropriate safety and
for staggered joints or double layered applications, or both
health practices and determine the applicability of regulatory
unless specified when ordered from the manufacturer,
limitations prior to use.
distributor, or fabricator.
2. Referenced Documents 4.4 Dimensions in accordance with this practice do not
2
necessarily permit application of one thickness of pipe insula-
2.1 ASTM Standards:
tion over another (Nesting or Simplified Dimensional System)
C168 Terminology Relating to Thermal Insulation
to obtain total thicknesses greater than those manufactured as
C302 Test Method for Density and Dimensions of Pre-
single layer, or for multilayer application when desired.
formed Pipe-Covering-Type Thermal Insulation
5. Summary of Practice
3. Terminology
5.1 This practice provides for each pipe and tubing sizes the
3.1 Definitions—Definitions pertaining to insulation are de-
inner diameters with tolerances for calcium silicate, cellular
fined in Terminology C168.
foam plastics, cellular glass, mineral fiber, and perlite pre-
4. Significance and Use formed pipe and tubing insulation identified by Table 1 and
Table 2.
4.1 The purpose of this practice is to ensure satisfactory fit
on standard sizes, to accommodate radial expansion of pipes
5.2 This practice provides for each pipe and tubing sizes the
and tubes which are heated after being insulated, and to
outer diameters for calcium silicate, cellular foam plastics,
cellular glass, mineral fiber, and perlite preformed pipe and
tubing insulation identified by Table 3, Table 4, Table 5 and
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal
Table 6.
InsulationandisthedirectresponsibilityofSubcommitteeC16.20onHomogeneous
Inorganic Thermal Insulations.
5.3 This practice provides for a range of pipe and tubing
Current edition approved May 1, 2010. Published June 2010. Originally
sizes the outer diameter tolerances for calcium silicate and
approvedin1966toreplaceC312andC521.Lastpreviouseditionapprovedin2009
perlitepreformedpipeandtubinginsulationidentifiedbyTable
as C585 – 09. DOI: 10.1520/C0585–10.
2
3a, Table 4a, Table 5a, and Table 6a.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.4 This practice provides for a range of pipe and tubing
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. sizes the outer diameters tolerances for cellular foam plastics,
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C585 − 10
TABLE 1 Nominal Pipe Sizes with Inner Diameters and Tolerances for
Calcium Silicate, Cellular Foam Plastics, Cellular Glass, Mineral Fiber, and Perlite Preformed Insulation
Cu
...
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:C585–09 Designation: C585 – 10
Standard Practice for
Inner and Outer Diameters of Thermal Insulation for
1
Nominal Sizes of Pipe and Tubing
This standard is issued under the fixed designation C585; 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
1.1 This practice is intended as a dimensional standard for preformed thermal insulation for pipes and tubing.
1.2 This practice covers insulation supplied in cylindrical sections and lists recommended single layer inner and outer diameters
1
of insulation having nominal wall thicknesses from ⁄2 to 5 in. (13 to 127 mm) to fit over standard sizes of pipe and tubing.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values stated in SI units are provided for
information only.
1.4 This standard does not purport to address 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
C302 Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal Insulation
3. Terminology
3.1 Definitions—Definitions pertaining to insulation are defined in Terminology C168.
4. Significance and Use
4.1 The purpose of this practice is to ensure satisfactory fit on standard sizes, to accommodate radial expansion of pipes and
tubes which are heated after being insulated, and to minimize the number of insulation sizes and thicknesses to be manufactured
and stocked.
4.2 While it is possible to manufacturer insulation to these recommended dimensions, exercise care in attempting to nest layers
of different materials, or layers supplied by different manufacturers. Individual manufacturing processes will operate at slightly
different tolerances. While the product will fit the pipe, it is possible that it will not readily nest as the outer layer between the
different materials, or with a different manufacturer, and possibly the same manufacturer. Exercise care to determine these
differences before specifying or ordering nesting sizes.
4.3 The wide range of outer diameter dimensional tolerances will prevent many pipe and tube insulations from nesting for
staggered joints or double layered applications, or both unless specified when ordered from the manufacturer, distributor, or
fabricator.
4.4 Dimensions in accordance with this practice do not necessarily permit application of one thickness of pipe insulation over
another (Nesting or Simplified Dimensional System) to obtain total thicknesses greater than those manufactured as single layer,
or for multilayer application when desired.
5. Summary of Practice
5.1 This practice provides for each pipe and tubing sizes the inner diameters with tolerances for calcium silicate, cellular foam
plastics, cellular glass, mineral fiber, and perlite preformed pipe and tubing insulation identified by Table 1 and Table 2.
5.2 This practice provides for each pipe and tubing sizes the outer diameters for calcium silicate, cellular foam plastics, cellular
glass, mineral fiber, and perlite preformed pipe and tubing insulation identified by Table 3, Table 4, Table 5 and Table 6.
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.20 on Homogeneous
Inorganic Thermal Insulations.
Current edition approvedAprilMay 1, 2009.2010. Published May 2009.June 2010. Originally approved in 1966 to replace C312 and C521. Last previous edition approved
in 20042009 as C585–90 (2004). C585 – 09. DOI: 10.1520/C0585-09.10.1520/C0585–10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
C585 – 10
Fig. 1a Three Meaurement Locations
Fig. 1b Diameter and Half-Diameter Measurement Locations
FIG. 1 Inner Diameter Measurement Location
Fig. 2a Three
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