1、Designation: C585 10Standard Practice forInner and Outer Diameters of Thermal Insulation forNominal Sizes of Pipe and Tubing1This standard is issued under the fixed designation C585; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、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 practice is intended as a dimensional standard forpreformed thermal insulation for pipes and tubing.1
3、.2 This practice covers insulation supplied in cylindricalsections and lists recommended single layer inner and outerdiameters of insulation having nominal wall thicknesses from12 to 5 in. (13 to 127 mm) to fit over standard sizes of pipe andtubing.1.3 The values stated in inch-pound units are to be
4、 regardedas the standard. The values stated in SI units are provided forinformation only.1.4 This standard does not purport to address the safetyconcerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and det
5、ermine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC302 Test Method for Density and Dimensions of Pre-formed Pipe-Covering-Type Thermal Insulation3. Terminology3.1 DefinitionsDefinitions pertaining
6、to insulation are de-fined in Terminology C168.4. Significance and Use4.1 The purpose of this practice is to ensure satisfactory fiton standard sizes, to accommodate radial expansion of pipesand tubes which are heated after being insulated, and tominimize the number of insulation sizes and thickness
7、es to bemanufactured and stocked.4.2 While it is possible to manufacturer insulation to theserecommended dimensions, exercise care in attempting to nestlayers of different materials, or layers supplied by differentmanufacturers. Individual manufacturing processes will oper-ate at slightly different
8、tolerances. While the product will fit thepipe, it is possible that it will not readily nest as the outer layerbetween the different materials, or with a different manufac-turer, and possibly the same manufacturer. Exercise care todetermine these differences before specifying or orderingnesting size
9、s.4.3 The wide range of outer diameter dimensional toler-ances will prevent many pipe and tube insulations from nestingfor staggered joints or double layered applications, or bothunless specified when ordered from the manufacturer, distribu-tor, or fabricator.4.4 Dimensions in accordance with this p
10、ractice do notnecessarily permit application of one thickness of pipe insula-tion over another (Nesting or Simplified Dimensional System)to obtain total thicknesses greater than those manufactured assingle layer, or for multilayer application when desired.5. Summary of Practice5.1 This practice prov
11、ides for each pipe and tubing sizes theinner diameters with tolerances for calcium silicate, cellularfoam plastics, cellular glass, mineral fiber, and perlite pre-formed pipe and tubing insulation identified by Table 1 andTable 2.5.2 This practice provides for each pipe and tubing sizes theouter dia
12、meters for calcium silicate, cellular foam plastics,cellular glass, mineral fiber, and perlite preformed pipe andtubing insulation identified by Table 3, Table 4, Table 5 andTable 6.5.3 This practice provides for a range of pipe and tubingsizes the outer diameter tolerances for calcium silicate andp
13、erlite preformed pipe and tubing insulation identified by Table3a, Table 4a, Table 5a, and Table 6a.1This practice is under the jurisdiction of ASTM Committee C16 on ThermalInsulation and is the direct responsibility of Subcommittee C16.20 on HomogeneousInorganic Thermal Insulations.Current edition
14、approved May 1, 2010. Published June 2010. Originallyapproved in 1966 to replace C312 and C521. Last previous edition approved in 2009as C585 09. DOI: 10.1520/C058510.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual
15、Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Fig. 1a Three Meaurement LocationsFig. 1b Diameter and Half-Diameter Measuremen
16、t LocationsFIG. 1 Inner Diameter Measurement LocationFig. 2a Three Measurement LocationsFig. 2b Diameter and Half-Diameter Measurement LocationsFIG. 2 Outer Diameter Measurement LocationFIG. 3 Hinged Section Measurement LocationC585 1025.4 This practice provides for a range of pipe and tubingsizes t
17、he outer diameters tolerances for cellular foam plastics,cellular glass, and mineral fiber, preformed pipe and tubinginsulations identified by Table 3b, Table 4b, Table 5b and Table6b.5.5 This practice provides for each pipe and tubing sizes theinner and outer diameters for flexible elastomeric cell
18、ular andpolyolefin preformed pipe and tubing insulation identified byTable 7, Table 8, Table 9, and Table 10.5.6 This practice provides for a range of pipe and tubingsizes the inner and outer diameter tolerances for flexibleelastomeric and polyolefin cellular preformed pipe and tubinginsulation iden
19、tified by Table 7a, Table 8a, Table 9a, and Table10a.6. Procedure6.1 Measurement:6.1.1 Measurement of inner and outer diameters shall bemade to the nearest132 in. (0.8 mm) using a steel tape or rule.6.1.1.1 Uneven Insulation Inner addthe applicable plus (+) outer diameter tolerance and twice the thi
20、ckness ofthe jacketing to the insulation outer diameter number; multiply the addedtotal times p (3.14159) to arrive at the maximum circumference; add thenecessary longitudinal overlap dimension to the maximum circumference;and the calculated answer will be the stretch-out requirement for cuttingthe
21、outer jacketing to be applied over / around the pipe or tubinginsulations OD.NOTE 2NPS (Nominal Pipe Size) is a dimensionless designator thathas been substituted in the customary units section for the previous terminch nominal pipe size.NOTE 3NTS (Nominal Tube Size) is a dimensionless designator tha
22、thas been substituted in the customary units section for the previous terminch nominal tube size.NOTE 4DN (Diameter Nominal) is a dimensionless designator thathas been substituted in the customary units section for the previous termSI (metric) system to describe millimeter nominal pipe or tube size.
23、7. Keywords7.1 pipe thermal insulation diameter; pipe thermal insula-tion dimension; thermal insulating materials-pipe; thermalinsulating materials-tubing; thermal insulation; tubing thermalinsulation diameter; tubing thermal insulation dimensionC585 103TABLE 1 Nominal Pipe Sizes with Inner Diameter
24、s and Tolerances forCalcium Silicate, Cellular Foam Plastics, Cellular Glass, Mineral Fiber, and Perlite Preformed InsulationCustomary and SI Units for Pipe InsulationNPSNote 2DNNote 4Outer Diameter Inner DiameterToleranceMinus Plusin. mm in. mm in. mm in. mm12 15 0.840 21.3 0.86 22 0 0 0.063 1.634
25、20 1.050 26.7 1.07 27 0 0 0.063 1.61 25 1.315 33.4 1.33 34 0 0 0.063 1.6114 32 1.660 42.2 1.68 43 0 0 0.063 1.6112 40 1.900 48.3 1.92 49 0 0 0.063 1.62 50 2.375 60.3 2.41 61 0 0 0.094 2.4212 65 2.875 73.0 2.91 74 0 0 0.094 2.43 80 3.500 88.9 3.53 90 0 0 0.094 2.4312 90 4.000 101.6 4.03 102 0.031 0.8
26、 0.094 2.44 100 4.500 114.3 4.53 115 0.031 0.8 0.094 2.4412 115 5.000 127.0 5.03 128 0.031 0.8 0.094 2.45 125 5.563 141.4 5.64 143 0.031 0.8 0.094 2.46 150 6.625 168.3 6.70 170 0.031 0.8 0.094 2.47 175 7.625 193.7 7.70 196 0.031 0.8 0.094 2.48 200 8.625 219.1 8.70 221 0.031 0.8 0.094 2.49 225 9.625
27、244.5 9.70 246 0.031 0.8 0.094 2.410 250 10.750 273.0 10.83 275 0.031 0.8 0.094 2.411 275 11.750 298.4 11.83 300 0.031 0.8 0.094 2.412 300 12.750 323.8 12.84 326 0.063 1.6 0.094 2.414 350 14.000 355.6 14.09 358 0.063 1.6 0.156 4.0TABLE 2 Nominal Tube Sizes with Inner Diameter and Tolerances forCalci
28、um Silicate, Cellular Foam Plastics, Cellular Glass, Mineral Fiber, and Perlite Preformed InsulationCustomary and SI Units for Tube InsulationNTSNote 3DNNote 4Outer Diameter Inner DiameterToleranceMinus Plusin. mm in. mm in. mm in. mm38 10 0.500 12.7 0.52 13 0 0 0.063 1.612 15 0.625 15.9 0.64 16 0 0
29、 0.063 1.634 20 0.875 22.2 0.89 23 0 0 0.063 1.61 25 1.125 28.6 1.14 29 0 0 0.063 1.6114 32 1.375 34.9 1.39 35 0 0 0.063 1.6112 40 1.625 41.3 1.64 42 0 0 0.063 1.62 50 2.125 54.0 2.16 55 0 0 0.063 1.6212 65 2.625 66.7 2.66 68 0 0 0.063 1.63 80 3.125 79.4 3.16 80 0 0 0.063 1.6312 90 3.625 92.1 3.66 9
30、3 0 0 0.063 1.64 100 4.125 104.8 4.16 106 0.031 0.8 0.094 2.45 125 5.125 130.2 5.16 131 0.031 0.8 0.094 2.46 150 6.125 155.6 6.20 157 0.031 0.8 0.094 2.4C585 104TABLE 3 Outer Diameters for Nominal Pipe Sizes and Nominal Wall Thickness onCalcium Silicate, Cellular Foam Plastics, Cellular Glass, Miner
31、al Fiber, and Perlite Preformed Insulation, inchesPipe Customary Units for Insulation, Nominal Thicknessin. 1 112 2212 3312 4412 5NPSNote 2Outer Diameter, in.12 2.88 4.00 5.00 6.62 7.62 8.62 9.62 10.75 11.7534 2.88 4.00 5.00 6.62 7.62 8.62 9.62 10.75 11.751 3.50 4.50 5.56 6.62 7.62 8.62 9.62 10.75 1
32、1.75114 3.50 5.00 5.56 6.62 7.62 8.62 9.62 10.75 11.75112 4.00 5.00 6.62 7.62 8.62 9.62 10.75 11.75 12.752 4.50 5.56 6.62 7.62 8.62 9.62 10.75 11.75 12.75212 5.00 6.62 7.62 8.62 9.62 10.75 11.75 12.75 14.003 5.56 6.62 7.62 8.62 9.62 10.75 11.75 12.75 14.00312 6.62 7.62 8.62 9.62 10.75 11.75 12.75 12
33、.75 14.004 6.62 7.62 8.62 9.62 10.75 11.75 12.75 14.00 15.00412 7.62 8.62 9.62 10.75 11.75 12.75 14.00 14.00 15.005 7.62 8.62 9.62 10.75 11.75 12.75 14.00 15.00 16.006 8.62 9.62 10.75 11.75 12.75 14.00 15.00 16.00 17.007 . 10.75 11.75 12.75 14.00 15.00 16.00 17.00 18.008 . 11.75 12.75 14.00 15.00 16
34、.00 17.00 18.00 19.009 . 12.75 14.00 15.00 16.00 17.00 18.00 19.00 20.0010 . 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.0011 . 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.0012 . 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.0014 . 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00TABLE 3a Outer Diame
35、ter Tolerances forCalcium Silicate and Perlite Preformed Pipe and Tubing Insulation, inchesOutside Diameter (O.D.)of Insulation, inchesOutside DiametersTolerances (O.D.), inches2.88 to 6.62 6 0.1887.62 to 14.00 6 0.25015.00 to 20.00 6 0.31321.00 to 29.00 6 0.37530.00 and larger 6 0.438TABLE 3b Outer
36、 Diameter Tolerances forCellular Foam Plastics, Cellular Glass, and Mineral Fiber Preformed Pipe and Tubing Insulation, inchesOutside Diameter (O.D.)of Insulation, inchesOutside DiametersTolerances (O.D.), inches2.88 to 6.62 6 0.1887.62 to 14.00 6 0.25015.00 to 20.00 6 0.31321.00 to 29.00 6 0.37530.
37、00 and larger 6 0.438C585 105TABLE 4 Outer Diameters for Nominal Pipe Sizes and Nominal Wall Thickness onCalcium Silicate, Cellular Foam Plastics, Cellular Glass, Mineral Fiber, and Perlite Preformed Insulation, millimetersPipe Customary SI Units for Insulation, Nominal ThicknessDNNote 4mm 25 38 51
38、64 76 89 102 114 127Outer Diameter, mm15 73 102 127 168 194 219 244 273 29820 73 102 127 168 194 219 244 273 29825 89 114 141 168 194 219 244 273 29832 89 127 141 168 194 219 244 273 29840 102 127 168 194 219 244 273 298 32450 114 141 168 194 219 244 273 298 32465 127 168 194 219 244 273 298 324 356
39、80 141 168 194 219 244 273 298 324 35690 168 194 219 244 273 298 324 356 381100 168 194 219 244 273 298 324 356 381115 194 219 244 273 298 324 356 381 406125 194 219 244 273 298 324 356 381 406150 219 244 273 298 324 356 381 406 432175 . 273 298 324 356 381 406 432 457200 . 298 324 356 381 406 432 4
40、57 483225 . 324 356 381 406 432 457 483 508250 . 356 381 406 432 457 483 508 533275 . 381 406 432 457 483 508 533 559300 . 406 432 457 483 508 533 559 584350 . 432 457 483 508 533 559 584 610TABLE 4a Outer Diameter Tolerances forCalcium Silicate and Perlite Preformed Pipe InsulationOutside Diameter
41、(O.D.)of Insulation, millimetersOutside DiametersTolerances (O.D.) millimeters73 to 163 6 4.8194 to 356 6 6.4381 to 506 6 7.9533 to 737 6 9.5762 and larger 6 11.1TABLE 4b Outer Diameter Tolerances forCellular Foam Plastics, Cellular Glass, and Mineral Fiber Preformed Pipe InsulationOutside Diameter
42、(O.D.)of Insulation, millimetersOutside DiametersTolerances (O.D.) millimeters73 to 163 6 4.8194 to 356 6 6.4381 to 506 6 7.9533 to 737 6 9.5762 and larger 6 11.1C585 106TABLE 5 Outer Diameters for Nominal Tube Sizes and Nominal Wall Thickness onCalcium Silicate, Cellular Foam Plastics, Cellular Gla
43、ss, Mineral Fiber, and Perlite Preformed Insulation, inchesTube Customary Units for Insulation, Nominal Thicknessin. 1 112 2212 3312 4412 5NTSNote 3Outer Diameter, inches38 2.38 3.50 4.50 5.56 6.62 . . . .12 2.88 3.50 4.50 5.56 6.62 . . . .34 2.88 4.00 5.00 6.62 7.62 8.62 9.62 10.75 11.751 2.88 4.00
44、 5.00 6.62 7.62 8.62 9.62 10.75 11.75114 3.50 4.50 5.56 6.62 7.62 8.62 9.62 10.75 11.75112 3.50 4.50 5.56 6.62 7.62 8.62 9.62 10.75 11.752 4.00 5.00 6.62 7.62 8.62 9.62 10.75 11.75 12.75212 4.50 5.56 6.62 7.62 8.62 9.62 10.75 11.75 12.753 5.00 6.62 7.62 8.62 9.62 10.75 11.75 12.75 14.00312 5.56 6.62
45、 7.62 8.62 9.62 10.75 11.75 12.75 14.004 6.62 7.62 8.62 9.62 10.75 11.75 12.75 14.00 15.005 7.62 8.62 9.62 10.75 11.75 12.75 14.00 15.00 16.006 8.62 9.62 10.75 11.75 12.75 14.00 15.00 16.00 17.00TABLE 5a Outer Diameter Tolerances forCalcium Silicate and Perlite Preformed Tube Insulation, inchesOutsi
46、de Diameter (O.D.)of Insulation, inchesOutside DiametersTolerances (O.D.) inches2.38 to 6.62 6 0.197.62 to 14.00 6 0.25Larger than 14.00 6 0.31TABLE 5b Outer Diameter Tolerances forCellular Foam Plastics, Cellular Glass, and Mineral Fiber Preformed Tube Insulation, inchesOutside Diameter (O.D.)of In
47、sulation, inchesOutside DiametersTolerances (O.D.) inches2.38 to 6.62 6 0.197.62 to 14.00 6 0.25Larger than 14.00 6 0.31C585 107TABLE 6 Outer Diameters for Nominal Tube Sizes and Nominal Wall Thickness on Calcium Silicate, Cellular Foam Plastics, CellularGlass, Mineral Fiber, and Perlite Preformed I
48、nsulation, millimetersTube Customary Units for Insulation, Nominal Thicknessmm 25 38 51 64 76 89 102 114 127DNNote 4Outer Diameter, mm10 60 89 114 141 168 . . . .15 73 89 114 141 168 . . . .20 73 102 127 168 194 219 244 273 29825 73 102 127 168 194 219 244 273 29832 89 114 141 168 194 219 244 273 29
49、840 89 114 141 168 194 219 244 273 29850 102 127 168 194 219 244 273 298 32465 114 141 168 194 219 244 273 298 32480 127 168 194 219 244 273 298 324 35690 141 168 194 219 244 273 298 324 356100 168 194 219 244 273 298 324 356 381125 194 219 244 273 298 324 356 381 406150 219 244 273 298 324 356 381 406 432TABLE 6a Outer Diameter Tolerances for Calcium Silicate and Perlite Preformed Tube InsulationOutside Diameter (O.D.)of Insulation, millimetersOutside DiametersTolerances (O.D.) millimeters60 to 168 6 4.8194 to 356 6 6.4381 to
