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ASTM C450-02

(Practice)

Standard Practice for Fabrication of Thermal Insulating Fitting Covers for NPS Piping, and Vessel Lagging

Standard Practice for Fabrication of Thermal Insulating Fitting Covers for NPS Piping, and Vessel Lagging

SIGNIFICANCE AND USE
This system of dimensions provides a guide for forming thermal insulation in advance of field application. Forming may be done by cutting, grinding, milling, or molding, depending upon the method most suitable for the thermal insulation being fabricated. It is equally applicable for all temperature ranges.
SCOPE
1.1 This practice provides tables of dimensions of preformed insulation that may be used in fabricating covers for use on valves, ells, tees, flanges, and vessels in the pressure range from 150 to 1500 psi (1 to 10 MPa). These tables, which are part of this standard, are published separately as the ASTM Recommended Dimensional Standards for Fabrication of Thermal Insulation Fitting Covers for NPS Piping, and Vessel Lagging. The tables provide dimensions for use in forming pipe fitting covers for NPS pipe operating at high temperature and low temperature. The tables also include dimensions for use in forming thermal insulation into curved segments, and lagging, for application on vessels. This practice does not apply to reflective-type insulation.
1.2 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.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.

General Information

Status
Historical
Publication Date
09-Jul-2002
ICS
27.220 - Heat recovery. Thermal insulation
Technical Committee
C16 - Thermal Insulation
Drafting Committee
C16.20 - Homogeneous Inorganic Thermal Insulations
Current Stage
Ref Project

Relations

Replaces
ASTM C450-99e1 - Standard Practice for Prefabrication and Field Fabrication of Thermal Insulating Fitting Covers for NPS Piping, Vessel Lagging, and Dished Head Segments
Effective Date
10-Jul-2002
Replaced By
ASTM C450-08 - Standard Practice for Fabrication of Thermal Insulating Fitting Covers for NPS Piping, and Vessel Lagging
Effective Date
01-May-2008
Referred By
ASTM C1639-19 - Standard Specification for Fabrication Of Cellular Glass Pipe And Tubing Insulation
Effective Date
10-Jul-2002
Referred By
ASTM C1767-21 - Standard Specification for Stainless Steel Jacketing for Insulation
Effective Date
10-Jul-2002
Referred By
ASTM C1729M-21 - Standard Specification for Aluminum Jacketing for Insulation
Effective Date
10-Jul-2002
Referred By
ASTM C1696-20 - Standard Guide for Industrial Thermal Insulation Systems
Effective Date
10-Jul-2002
Referred By
ASTM C610-17(2023) - Standard Specification for Molded Expanded Perlite Block and Pipe Thermal Insulation
Effective Date
10-Jul-2002
Referred By
ASTM C1767M-21 - Standard Specification for Stainless Steel Jacketing for Insulation
Effective Date
10-Jul-2002
Referred By
ASTM C1129-17 - Standard Practice for Estimation of Heat Savings by Adding Thermal Insulation to Bare Valves and Flanges
Effective Date
10-Jul-2002
Referred By
ASTM C1879-21 - Standard Practice for Installation of Aluminum and Stainless Steel Jacketing over Thermal Insulation on Pipe and Rigid Tubing
Effective Date
10-Jul-2002
Referred By
ASTM C1729-21 - Standard Specification for Aluminum Jacketing for Insulation
Effective Date
10-Jul-2002
Referred By
ASTM C552-22 - Standard Specification for Cellular Glass Thermal Insulation
Effective Date
10-Jul-2002

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ASTM C450-02 - Standard Practice for Fabrication of Thermal Insulating Fitting Covers for NPS Piping, and Vessel LaggingASTM C450-02 - Standard Practice for Fabrication of Thermal Insulating Fitting Covers for NPS Piping, and Vessel Lagging
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ASTM C450-02 - Standard Practice for Fabrication of Thermal Insulating Fitting Covers for NPS Piping, and Vessel Lagging
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C450–02
Standard Practice for
Fabrication of Thermal Insulating Fitting Covers for NPS
1
Piping, and Vessel Lagging
This standard is issued under the fixed designation C 450; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Significance and Use
1.1 This practice provides tables of dimensions of pre- 3.1 This system of dimensions provides a guide for forming
formed insulation that may be used in fabricating covers for thermal insulation in advance of field application. Forming
use on valves, ells, tees, flanges, and vessels in the pressure may be done by cutting, grinding, milling, or molding, depend-
range from 150 to 1500 psi (1 to 10 MPa). These tables, which ing upon the method most suitable for the thermal insulation
are part of this standard, are published separately as theASTM being fabricated. It is equally applicable for all temperature
Recommended Dimensional Standards for Fabrication ofTher- ranges.
mal Insulation Fitting Covers for NPS Piping, and Vessel
4. Apparatus
Lagging. The tables provide dimensions for use in forming
pipe fitting covers for NPS pipe operating at high temperature 4.1 Thermal insulation can be formed into shapes by nu-
merous methods. In general, insulations may be cut by circular
and low temperature. The tables also include dimensions for
use in forming thermal insulation into curved segments, and or band saws, shaped by grinders or millers, or molded. Each
method has certain advantages and disadvantages, depending
lagging,forapplicationonvessels.Thispracticedoesnotapply
to reflective-type insulation. upon the material to be formed, number of cuts required,
material waste permissible, and quantity of fittings being
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the produced. Adhesives and fabrication cements can be applied
from dip pots, rollers, doctor blades, brush, or trowel, depend-
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- ing upon the materials being used. For these reasons, although
standardized equipment may be devised for certain forming
bility of regulatory limitations prior to use.
functions, no completely standardized equipment recommen-
1.3 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are provided dation can be suggested.
for information purposes only.
5. Basis of Design
2. Referenced Documents
5.1 All dimensions presented are based on the use of pipe
insulation manufactured to Practice C 585 and to the Basic
2.1 ASTM Standards:
C 585 Practice for Inner and Outer Diameters of Rigid Dimensional Standards for Pipe Insulation as given in Tables 1
and Tables 2 of the ASTM Recommended Dimensional Stan-
Thermal Insulation for Nominal Sizes of Pipe and Tubing
2
(NPS System) dards for Prefabrication and Field Fabrication of Thermal
3
Insulation Fitting Covers for NPS Piping, andVessel Lagging.
2.2 ASTM Adjuncts:
ADJC0450 Recommended Dimensional Standards for Fab- 5.2 The tables provide dimensions for insulation fitting
covers for installation on nominal pipe size (NPS) pipe
rication of Thermal Insulating Fitting Covers for NPS
3
Piping and Vessel Lagging operating at high and low temperatures.
5.3 Dimensions presented for cutting beveled blocks from
preformed thermal insulation (lags) are based on blocks 6 in.
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal
(152 mm) wide by the thickness required.
InsulationandisthedirectresponsibilityofSubcommitteeC16.20onHomogeneous
5.4 Dimensions given for flanged pairs, flanged fittings, and
Inorganic Thermal Insulations.
flanged valves do not allow for flange bolt removal. When bolt
Current edition approved July 10, 2002. Published November 2002. Originally
e1
published as C 450 – 60 T. Last previous edition C 450 – 99 .
removal is required, the covering length over the flange shall
2
Annual Book of ASTM Standards, Vol 04.06.
be increased as specified by the purchaser.
3
Available at a nominal cost from ASTM Headquarters. Order Adjunct:
ADJC0450.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C450–02
6. Fabrication 8. Insulation Fabrication Shop Requirements
8.1 Insulation can be shop fabricated by several methods.
6.1 The main body of the insulation fitting may be cut from
Each method has certain advantages and disadvantages, de-
standard pipe size pip
...

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SCOPE
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SIGNIFICANCE AND USE
5.1 Both physical and chemical changes possibly occur from weather exposure, and these changes affect performance properties, service life, and maintenance schedules. For this reason, tests of properties relating to performance shall be made both before and after specific periods of outdoor exposure.  
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SCOPE
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1.1 This test method determines the amount of water retained (including surface water) by rigid block and board thermal insulations used in building construction applications after these materials have been partially immersed in liquid water for prescribed time intervals under isothermal conditions. This test method is intended to be used for the characterization of materials in the laboratory. It is not intended to simulate any particular environmental condition potentially encountered in building construction applications.  
1.2 This test method does not address all the possible mechanisms of water intake and retention and related phenomena for rigid thermal insulations. It relates only to those conditions outlined in 1.1. Determination of moisture accumulation in thermal insulations due to complete immersion, water vapor transmission, internal condensation, freeze-thaw cycling, or a combination of these effects requires different test procedures.  
1.3 Each partial immersion interval is followed by a brief free-drainage period. This test method does not address or attempt to quantify the drainage characteristics of materials. Therefore, results for materials with different internal structure and porosity, such as cellular materials and fibrous materials, are not necessarily directly comparable. Also, test results for specimens of different thickness are not necessarily directly comparable because of porosity effects. The surface characteristics of a material also affect drainage. It is possible that specimens with rough surfaces will retain more surface water than specimens with smooth surfaces, and that surface treatment during specimen preparation will affect water intake and retention. Therefore, it is not advisable to directly compare results for materials with different surface characteristics.  
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Standard Specification for Prefabricated Reflective Insulation Systems for Equipment and Pipe Operating at Temperatures above Ambient Air

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This specification covers the standard for all metal prefabricated, reflective insulation systems for equipment and piping operating at temperatures above ambient in air proposed for use in nuclear power-generating plants and industrial plants. The insulation unit is a rigid, self-contained, prefabricated metal construction made of an inner and outer casing arranged to form a rigid assembly with separated air spaces between the inner and outer casing and the individual reflective liners. The reflective insulation described herein is limited to systems of insulating units, designed to fit the equipment or piping to be insulated. The units shall be manufactured from metals that are in accordance with the thermal, physical, and chemical requirements not only of the insulation as unit, but also as an assembly of units forming the insulation system.
SCOPE
1.1 This specification covers the requirements for all metal prefabricated, reflective insulation systems for equipment and piping operating in air at temperatures above ambient. Typical applications are in nuclear power-generating plants and industrial plants.  
1.2 Reflective insulation is thermal insulation that reduces radiant heat transfer across spaces by the use of surfaces of high reflectance and low emittance.  
1.3 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.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM C592-22a(Specification)
Standard Specification for Mineral Fiber Blanket Insulation and Blanket-Type Pipe Insulation (Metal-Mesh Covered) (Industrial Type)

ABSTRACT
This specification covers mineral fiber blanket insulation and blanket-type pipe insulation (metal-mesh covered) (industrial type). Mineral fiber metal-mesh covered blanket shall be composed of rock, slag, or glass processed from the molten state into fibrous form, bonded with or without an organic binder, and secured with metallic supporting facing(s). Types of facings for one or both sides of blanket units shall be specified. When both sides are to be faced, units are permitted to have the same or different types on the two sides. Each piece of metal-mesh covered insulation shall be coherent to permit handling/transportation and installation as a unit. A detectable odor of objectionable nature recorded by more than two of the five panel members shall constitute rejection of the material. When tested and evaluated, the corrosion resulting from the unfaced insulation blanket in contact with metal plates shall be judged to be no greater than comparative plates in contact with sterile cotton. The averaged maximum shot content of mineral fiber rock or slag type products shall not exceed 30 % by weight. When tested, the blanket insulation shall not warp, flame, or glow during hot surface exposure. When tested, the blanket mid-point temperature shall not at any time exceed the hot surface temperature by more than 100°F (55.5°C). When tested, the blanket insulation shall not exceed the recorded temperature rise more than 54°F (30°C) with no flaming and weight loss exceeding 5 %.
SCOPE
1.1 This specification covers the composition, dimensions, and physical properties of mineral fiber (rock, slag, or glass) metal mesh covered and industrial type blanket and blanket-type pipe insulation (typically on 24 in. (610 mm) diameters or larger)). Its use is for cooled surfaces at temperatures operating below ambient to 0°F (−18°C) and on heated surfaces on expansion joints to large diameter vessels and tanks operating at temperatures up to 1200°F (649°C). Specific applications outside the actual use temperatures shall be agreed upon between the manufacturer and purchaser.  
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1.4 This standard does not purport to provide the performance requirements of hourly-rated fire systems. Consult the manufacturer for the appropriate system.  
1.5 See Supplementary Requirements for modifications to sections in this standard only when specified by purchaser in the contract or order from the U.S. Military specifications utilized by the U.S. Department of Defense, Department of the Navy, and the Naval Systems Command.  
1.6 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.  
1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.8 This international standard was developed in accordance with internatio...

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ASTM C585-22(Practice)
Standard Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and Tubing

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.  
FIG. 3 Hinged Section Measurement Location
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 1/2 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 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Standard
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  • Standard
    10 pages
    English language
    sale 15% off