ASTM C1409-1998(2003) Standard Guide for Measuring and Estimating Quantities of Insulated Piping and Components《测量和估算绝缘管及元件数量的标准导则》.pdf

1、Designation: C 1409 98 (Reapproved 2003)Standard Guide forMeasuring and Estimating Quantities of Insulated Pipingand Components1This standard is issued under the fixed designation C 1409; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revis

2、ion, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.INTRODUCTIONA committee of ASTM International initiated this guide to improve industry-wide understanding ofthe

3、components in an insulated piping system that affect the installed cost of insulating the system. Themethod of measurement standard used as a bias for this guide is the National Commercial andIndustrial Standards.2ASTM International defines a guide as a series of options or instructions that does no

4、t recommenda specific course of action. A guide only suggests a course of action. Its purpose is to offer guidancebased on a consensus of viewpoints, but not to establish a fixed procedure. A guide is intended toincrease the awareness of the user to available techniques in a given subject area and t

5、o provideinformation from which subsequent evaluation and standardization can be derived.It is the intention that this guide will help gain wider acceptance and understanding of the conceptsin the MICA standard.1. Scope1.1 This guide defines the components of an insulatedpiping system to be measured

6、 or counted to determine quan-tities and pricing for unit price contracts or extra work.1.2 Pricing may be done through unit pricing for each itemby pipe size, type of insulation system, insulation thickness,double or multilayer insulation, type of weatherproofing orjacketing, and pressure rating (i

7、f necessary) or through com-ponent (fitting) factor or multipliers.1.2.1 Component (fitting) factors or multipliers, which aremultipliers times the straight length of piping as shown inTable 1, determine relative prices for each component notwithin the scope of this guide. These factors or multiplie

8、rs areto be determined by the insulating contractor relative to thegiven situation and insulation system specification.1.2.2 It is suggested that only one type of pricing be used ona project.1.2.3 The values stated in inch-pound units are to beregarded as the standard.2. Summary of Guide2.1 This gui

9、de lists examples of components of pipingsystems which effect insulation cost. From this list, compo-nents to be counted are selected by the involved parties.3. Significance and Use3.1 This guide establishes procedures to help parties in-volved in unit price piping insulation contracts reach agree-m

10、ent as to what components will be counted for pricingpurposes.4. Procedure4.1 For a unit price-type contract, establish unit prices forstraight run piping. These unit prices should include pipe size,type of insulation system, insulation thickness, double ormultilayer insulation, and type of weatherp

11、roofing or jacketingsuch as shown in the example in Table 1.4.2 Determine the quantity of straight run pipe insulation bystraight pipe measurement from centerline to centerline andinclude lengths of all in-line components. This method isdefined as “measured through” (see Fig. X3.1).4.3 Count the qua

12、ntities of piping components. The pipingcomponents (fittings) to be counted may be modified by thoselisted in Table 2. The components should be categorized bypipe size, type of insulation system, insulation thickness, and1This guide is under the jurisdiction of ASTM Committee C16 on ThermalInsulatio

13、n and is the direct responsibility of Subcommittee C16.40 on InsulationSystems.Current edition approved April 10, 2003. Published July 2003. Originallyapproved in 1998. Last previous edition approved in 1998 as C 1409 98.2Further information is available from the Midwest Insulation Contractors Assn.

14、(MICA), 2017 S. 139th Circle, Omaha, NE.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.pressure rating, if necessary. Table 2 may be used as a checklistto assist in the categorization.4.4 The method of pricing (unit price per compon

15、ent orfitting factors) for each category will be determined by theterms of a request for quotation or commercial contract.However, users of this guide must be aware that selection ofelements to be counted, categories, and method of measuringpipe, have a direct bearing on the final total price. Knowl

16、edgeof this fact is critical to the selection of the most qualifiedinstaller.4.5 For a unit price contract, each component shall have itsown table categorized by pipe size, type of insulation system,insulation thickness, and pressure rating, if necessary.5. Piping Components5.1 Table 2 lists a sampl

17、e of components which effect thecost of insulation on a piping system. The “Note” column isused when additional information is required to explain acomponent as it generally applies to the insulation industry.5.2 Table 2 may be used as a checklist when choosing whichcomponents will be counted and wh

18、en determining difficultyfactors. However, for inclusion in contract or request for quotedocuments, a summary similar to Appendix X1 may be used.6. Industry Examples6.1 Examples of how components are categorized and madepart of a unit price contract are shown in Appendix X1 andAppendix X2. These exa

19、mples provide a range of possibilities.6.2 Examples of unit pricing by component are shown inAppendix X3. One of these schedules, fitting factors, ormultipliers will be required for each component.6.3 The method of measurement and how straight pipeequivalent factors are categorized are shown in Fig.

20、 X3.1. Fig.X3.1 is basically the MICA standard and depicts the “Center-line Measure Through” method of determining total quantity ofstraight run pipe.7. Keywords7.1 extra work; factors; fittings; insulated pipe; measurequantities; piping components; unit pricesTABLE 1 Piping Unit Price Schedule, Hot

21、 Insulation, 0.016-in. Thick Aluminum Jacketing, Cost per Linear Foot (All Materials and LaborNecessary for a Complete Installation)112 2212 3312 4312 DLA,B4DLA,B4DLA,B2 and under21233124681012141618202430Over 30 andEquipmentADL = Double layer.BIn some insulation systems, double-layer insulation may

22、 occur at smaller thickness.C 1409 98 (2003)2TABLE 2 Piping ComponentsComponents (Fittings) Type NoteAScrewed Welded Flanged MiteredElbow: 1Long radius 90Long radius 45Short radius 90Short radius 45Less than 45Reducing 2Bend:Radius greater than 112 D 3Valve (including Bonnet Flgd.) 6GateGlobeCheckRe

23、liefAngleControlButterflySpecialValve (excluding Bonnet Flgd.) 6gateglobecheckreliefangleControlButterflySpecialFlange:LineBlindOrifice (plate)Tee: 4StraightReducing 2StrainerLateral (Y-branch) 2CrossCapBevelReducer:Concentric 2EccentricUnionBossStub-in:Sockolet 4WeldoletThredoletThermoweldSteam tra

24、pExpansion jointHangerSupportPatchworkOpen area (comeback) 5InstrumentsInstrument tubingAThe following are explanations of Notes 1 to 6:1. “Mitered” applied to elbows only.2. Count as larger pipe size.3. Measure actual length of bend.4. Items under stub-in category do not count as tees.5. Areas such

25、 as field welds that contractually cannot be insulated at the same time as straight run pipe.6. Components shall be categorized by pressure rating where applicable.C 1409 98 (2003)3APPENDIXES(Nonmandatory Information)X1. INDUSTRY EXAMPLE 1X1.1 The piping components to be counted for unit pricecontra

26、ct are as follows:1. Screwed valves (complete).2. Screwed unions.3. Screwed reducers, caps, ells, tees, and y-branches.4. Traps.5. Bent pipe, 2 through 6 in.6. Bent pipe, 8 through 12 in.7. Bent pipe, 14 through 24 in.8. Bent pipe, 30 through 36 in.9. Welded valves (bodies only).10. Welded valves bo

27、nnet.11. Pair of flanges,12 through 12 in.12. Pair of flanges, 12 through 24 in.13. Pair of flanges, 30 through 36 in.14. Flanged valves (bodies only).15. Flanges valves (bodies and bonnets, including bonnet, flanges).16. Flanged valves, complete (including body, bonnet, and flanges)12 to 4 in.17. F

28、langed valves, complete (including body, bonnet, and flanges) 6 to 12 in.18. Flanged valves, complete (including body, bonnet, and flanges) 12 to 20in.19. Flanged valves, complete (including body, bonnet, and flanges) 24 in.20. Flanged valves, complete (including body, bonnet, and flanges) 30 in.21.

29、 Flanged valves, complete (including body, bonnet, and flanges) 36 in.22. Welded ells.23. Welded tees.24. Welded y-branches.25. Welded caps.26. Welded (bosses) outlets.27. Insulation bevels.28. Expansion joints.29. Removal of existing, already-installed insulation.30. Removal of not-yet-installed in

30、sulation from lump sum contract price.31. Weld areas left open for testing and inspection.32. Stub-outs, hangers, and supports on hot piping.33. Stub-outs, hangers, and supports on cold piping.NOTE X1.1All pipe bends less than 2-in. NPS shall be priced as ells.NOTE X1.2The preceding factors for flan

31、ges, weld valves, andflanged valves are based on 150 and 300-lb class. Request additionalfactors for higher pressure ratings.NOTE X1.3Factors for bent pipe are for each lineal foot of bend.NOTE X1.4Traced piping will be priced at the next listed size largerthan the pipe covering size required to go

32、over the line and its tracers.X2. INDUSTRY EXAMPLE 2X2.1 The piping components to be counted or measured forunit price contract are as follows:1. Straight runs (lineal feet-LF).2. Elbows (each).3. Flanges (each).4. Valves (each).5. Tees with smallest connection greater that 312 in. (each).X2.2 Measu

33、rements for straight runs are made from cen-terline to centerline through all insulated or uninsulated com-ponents of an insulated line in accordance with 4.1.X2.3 A flange connection (a pair of flanges) is counted asone flange.X2.4 Valves, control valves, check valves, three-wayvalves, and strainer

34、s are counted as valves. If these componentsare flanged they will be identified as flanged valves and willinclude flange connections and bonnet flange as applicable.X2.5 Traced piping will be priced at the next listed sizelarger than the pipe covering size required to go over the lineand its tracer.

35、X2.6 The unit price for instrument tubing shall be the sameas that for piping. The unit price for instruments shall be theprice of the size of pipe insulation required to cover theinstrument.X2.7 The unit price for bundled tube or pipe shall be theprice of the size pipe insulation required to cover

36、the bundle.X3. EXAMPLES OF UNIT PRICING BY COMPONENTX3.1 Examples of unit pricing by component are shown inTables X3.1-X3.4. Method of measurement and straight pipeequivalent factors are shown in Fig. X3.1.C 1409 98 (2003)4TABLE X3.1 Unit Price Schedule Hot Insulation, 0.016-In. Thick Aluminum Jacke

37、ting, Cost Per Long Radius 90 Elbow All MaterialsAnd Labor Necessary For A Complete InstallationPipe Size(NPS), in.Insulation Thickness, in.112 2212 3312 4312 DLA,B4DLA,B412 DLA,B2 and under21233124681012141618202430Over 30 andEquipmentADL = Double layer.BIn some insulation systems, double-layer ins

38、ulation may occur at smaller thickness.TABLE X3.2 Unit Price Schedule, Hot Insulation, 0.016-In. Thick Aluminum Jacketing, Cost Per 150-Lb Gate Valve, Including BonnetFlanges (All Materials And Labor Necessary For A Complete Installation)Pipe Size(NPS), in.Insulation Thickness, in.112 2212 3312 4312

39、 DLA,B4DLA,B412 DLA,B2 and under21233124681012141618202430Over 30 andEquipmentADL = Double layer.BIn some insulation systems, double-layer insulation may occur at smaller thickness.C 1409 98 (2003)5TABLE X3.3 Unit Price Schedule Hot Insulation, 0.016-In. Thick Aluminum Jacketing, Cost Per 300-Lb Glo

40、be Valve, Excluding BonnetFlanges (All Materials And Labor Necessary For A Complete Installation)Pipe Size(NPS), in.Insulation Thickness, in.112 2212 3312 4312 DLA,B4DLA,B412 DLA,B2 and under21233124681012141618202430Over 30 andEquipmentADL = Double layer.BIn some insulation systems, double-layer in

41、sulation may occur at smaller thickness.TABLE X3.4 Unit Price Schedule, Hot Installation, 0.016-In. Thick Aluminum Jacketing, Cost Per 600-Lb Flange Pair All Materials AndLabor Necessary For A Complete InstallationPipe Size(NPS), in.Insulation Thickness, in.112 2212 3312 4312 DLA,B4DLA,B412 DLA,B2 a

42、nd under21233124681012141618202430Over 30 andEquipmentADL = Double layer.BIn some insulation systems, double-layer insulation may occur at smaller thickness.C 1409 98 (2003)6FIG. X3.1 Straight Pipe Equivalent FactorsC 1409 98 (2003)7ASTM International takes no position respecting the validity of any

43、 patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revi

44、sion at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your

45、comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyri

46、ghted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C 1409 98 (2003)8