Specification for Cross Linked Polyethylene Line Pipe(PEX)
UpstreamSegment
API SPECIFICATION 15PX
DRAFT 1, APRIL2017
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Contents
Page
1Scope...... 1
1.1Purpose...... 1
1.2Applications...... 1
1.3UnitConversion...... 1
2References...... 2
2.1General...... 2
2.2Requirements...... 3
2.3EquivalentStandards...... 3
3Glossary(Definitions,Abbreviations)...... 4
3.1Definitions...... 4
3.2Abbreviations...... 6
4PurchasingGuidelines...... 6
4.1General...... 6
5Design...... 7
5.1Design...... 7
5.2Dimensionsand Tolerances...... 10
6ProcessofManufacture...... 10
6.1ProcessofManufacture...... 10
6.2Materials...... 15
6.3ReworkMaterial...... 15
6.4Fittings...... 15
6.5FinishandWorkmanship...... 16
7QualityProgram...... 16
7.1QualityManual...... 16
7.2QualityControlTests...... 17
7.3InspectionandRejection...... 20
8EquipmentMarking...... 20
8.1General...... 20
9Handling, StorageandInstallation...... 21
9.1Storage...... 21
9.2Handling...... 21
9.3Installation...... 22
Annex A(informative)Conversions...... 23
Annex B (informative) External Pressure Rating(CollapsePressure)...... 25
Annex C (informative)Cross-linkedPolyethylene...... 27
Annex D (informative)APIMonogram...... 29
Annex E(informative)Installation...... 31
Specification for Cross Linked Polyethylene Line Pipe(PEX)
1Scope
1.1Purpose
Thepurposeofthisspecificationistoprovidestandardsforcross linked polyethylene(PEX)linepipesuitableforuseinconveying oil, gas and non-potable water in underground, above ground and reliner applications for the oil and gas producing industries.
Thestandarddoesnotproposetoaddressallofthesafetyconcernsassociatedwiththedesign,installationoruseof products suggested herein. It is the responsibility of theuser of the standard to utilize appropriate health and safety considerations.
All pipe produced under this standard must utilize pressure rated materials, but may be used in pressurized, non- pressureandnegativepressureapplications.
The technical content of this document provides requirements and guidelines for performance, design, materials inspection,dimensionsandtolerances,marking,handling,storingandshipping.
1.2Applications
1.2.1Equipment
This specification covers PEX line pipe utilized for the production and transportation of oil, gas and non-potablewater.Thepipingisintendedforuseinnewconstruction,structural, pressure-rated liner,lineextensionandrepair,ofboth abovegroundandburiedpipeapplications.Specificequipmentcoveredbythisspecificationislistedasfollows:
1)PEXlinepipe;
2)Fittings.
1.2.2ServiceConditions
ThestandardserviceconditionsfortheAPISpec15PXStandardPressureRatingareasfollows:
1)HDB or MRS/CRS is established to 50years;
2)Servicetemperature range: -50° C(-58 °F) to95° C (203 °F)
Note – applications above 95° C (203 °F) require special design consideration.
3)Thefluidenvironmentisoil,gasandnon-potablewater.
4)Axial loads shall include end loads due to pressure only.
5)ServiceconditionsotherthanthestandardAPISpec15PXconditionsarediscussedinSection5—Design.
2References
2.1General
Thisspecificationincludesbyreference,eitherintotalorinpart,themostcurrentissueofthefollowingstandards: ANSIB16.5,PipeFlangesandFlangedFittings
ASTMD638,StandardTestMethodforTensilePropertiesofPlastics
ASTMD792,StandardTestMethodsforDensityandSpecificGravity(RelativeDensity)ofPlasticsbyDisplacement
ASTMD1238,StandardTestMethodforMeltFlowRatesofThermoplasticsbyExtrusionPlastometer
ASTMD1505,StandardTestMethodforDensityofPlasticsbytheDensity-GradientTechnique
ASTMD1598,StandardTestMethodforTime-toFailureofPlasticPipeUnderConstantInternalPressure
ASTMD1599,StandardTestMethodforResistancetoShort-TimeHydraulicFailurePressureofPlasticPipe,Tubing andFittings
ASTMD1600,StandardTerminologyforAbbreviatedTermsRelatingtoPlastics
ASTMD2122,StandardTestMethodforDeterminingDimensionsoftheThermoplasticPipeandFittings
ASTMD2290,StandardTestMethodforApparentHoopTensileStrengthofPlasticorReinforcedPlasticbySplitDisk Method
ASTMD2513,StandardSpecificationforThermoplasticGasPressurePipe,TubingandFittings
ISO 14531 –1 - Plastics pipes and fittings —Crosslinkedpolyethylene (PE-X) pipe systems for theconveyance of gaseous fuels —Metricseries–Pipes
ISO 14531 –2 - Plastics pipes and fittings —Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels —Metric series - Pipes
ISO 14531 –3 - Plastics pipes and fittings —Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels —Metric series - Pipes
ISO 14531 –4 - Plastics pipes and fittings —Crosslinked polyethylene (PE-X) pipe systems for the conveyance of gaseous fuels —Metric series - Pipes
ASTM D2765, Standard Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics
ISO 10147, Pipes and fittings made of crosslinked polyethylene (PE-X) —Estimation of the degree of crosslinking by determination of the gel content
ISO 1167, Thermoplastics pipes, fittings andassemblies for the conveyance offluids —Determination of the resistanceto internal pressure
ISO 2505, Thermoplastics pipes–longitudinal reversion –test method and parameters.
EN 728, Plastics piping and ducting systems. Polyolefin pipes and fittings. Determination of oxidation induction time
ASTMD2774,StandardPracticeforUndergroundInstallationofThermoplasticPressurePiping
ASTMD2837,StandardTestMethodforObtainingHydrostaticDesignBasisforThermoplasticPipeMaterials
ISO 9080, Plastics piping and ducting systems -- Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation
ISO 12162,Thermoplastics materials for pipes and fittings for pressure applications -- Classification, designation and design coefficient
ASTM F2905, Black Crosslinked Polyethylene (PEX) Line Pipe, Fittings
and Joints for Oil and Gas Producing Applications
ASTM F2968, Standard Specification forBlack Crosslinked Polyethylene (PEX) Pipe, Fittings andJoints for Gas Distribution Applications
ASTM F2788, Standard Specification for Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe
ASTM –2829, Standard Specification forMetric-Sized Crosslinked Polyethylene (PEX) Pipe Systems
ASTMF412,StandardTerminologyRelatingtoPlasticPipingSystems
ASTM F1055, Standard Specification for Electrofusion Type Polyethylene Fittings for Outside Diameter Controlled PolyethylenePipeandTubing
DIN 16892/3, Crosslinked high-density polyethylene(PE-X) pipes
ISO 4065, Thermoplastics pipes —Universal wall thickness table
ISO 11922, Thermoplastics pipes for the conveyance of fluids —Dimensions and tolerances —
Part 1:Metric series
ISO 161-1, Thermoplastics pipes for the conveyance of fluids —Nominal outside diameters and nominal pressures - Part 1:Metric series
ASTM F2206, Standard Specification for Fabricated Fittings of Butt-Fused Polyethylene (PE) Plastic Pipe, Fittings, SheetStock,PlateStockorBlockStock
ISO 4427-3, Plastics piping systems —Polyethylene (PE) pipes and fittings for water supply -Part 3:Fittings
PPITN-7,NatureofHydrostaticStressRuptureCurves
PPI TR-3, Policies and Procedures for Developing Hydrostatic Design Basis (HDB), Pressure Design Basis (PDB), Strength Design Basis (SDB) and Minimum Required Strength (MRS) Ratings for Thermoplastic Pipe Materials or Pipe
PPI TR-4, Listing of Hydrostatic Design Basis (HDB), Strength Design Basis (SDB), Pressure Design Basis (PDB), andMinimumRequiredStrength(MRS)RatingsforThermoplasticPipingMaterialsorPipe
PPITR-9,RecommendedDesignFactorsforPressureApplicationsofThermoplasticPressurePipeMaterials
PPITR-41,GenericSaddleFusionJoiningProcedureforPolyethyleneGasPiping
U.S. DOT Title 49, CFR Part 192, Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards
2.2Requirements
Requirements of other standards included by reference in this specification are essential to the safety andinterchangeabilityoftheequipmentproduced.
2.3EquivalentStandards
Standards referenced in this specification may be replaced by other international or national standards that can be showntomeetorexceedtherequirementsofthereferencedstandard.Manufacturerswhouseotherstandardsinlieuof standards referenced herein are responsible for documenting the equivalency of the standards. Where a standard is revised,thelatesteditionmaybeusedonissueandshallbecomemandatory6monthsfromthedateoftherevision.
3Glossary (Definitions,Abbreviations)
3.1Definitions
3.1.1
acceptancecriteria
Definedlimitsplacedoncharacteristicsofmaterials,products,orservices.
3.1.2
adapters
Appurtenancesthatallowconnectingcomponentswithdifferentjoiningsystems.
3.1.3
pressure rating (PR)
the estimated maximum water pressure the pipe is capable of withstanding continuously witha high degree of certainty that failure of the pipe will not occur.
3.1.4
component
Anypressurelinepipe,pipeconnection,fitting,flange,adapter,reducer,orendofoutletconnectioncoveredbythis specification.
3.1.5
DesignServiceFactor(DSF)
AsafetyfactorappliedtotheHydrostaticDesignBasis(HDB)tocalculatethehydrostaticdesignstress.
3.1.6 overall service (design) coefficient
Overall coefficient, with a value greater than 1, that takes into consideration service conditions as well as properties
of the components of a piping system other than those represented inσLPL
NOTE:See annex E and ISO 12162 for information regarding the minimum permissible service (design) coefficient for PE-Xpipes.
3.1.7
eccentricity
The wall thickness variability as measured and calculated in accordance with ASTM D2122 Test Method in any diametrical cross section of the pipe shall be within 12 %. Wall thickness eccentricity range shall be measured in accordancewithASTMD2513,Section6.5.1.3.
3.1.9
fittings
Tees, 90s elbows, 45s elbows and fittings manufactured by butt fusion welding of shape modified or mitered componentsprepared frommoldedfittings,sheetstockorblock made of Polyethylene or PEX..
Electro fusion fittings according to ISO 8083, ASTM F1055 and ISO 14531 part 2.
Mechanical metallic fittings according to ISO 14531 part 3.
3.1.10
flanges
Face flanges with bolt hole circle per ANSI B16.5. Flanges and flange adapter as used in this specification, incorporatesuseofpolyethyleneflangeadapterandmetallicbackupringutilizingANSIB16.5boltholepattern.
Metallic Flange couplers for field installations are also covered by this specification
PEX face flanges used as internal diameter adapters are also covered by this specification
3.1.11
FluidServiceFactor(FSF)
Factor applied to the Hydrostatic Design Stress (HDS) or the MRS/CRS method to account for the impact of the transported fluid on pipe performance.
3.1.11
Hydrostatic Design Basis(HDB)
ThecategorizedLong-termHydrostaticStrength(LTHS)inthecircumferentialorhoopdirectionforagivensetofend use conditions, as established by ASTM D2837, Standard Test Method for Obtaining Hydrostatic Design Basis for ThermoplasticPipeMaterials.
3.1.12
Hydrostatic Design Stress(HDS)
The maximum allowable working hoop stress in the pipe wall when the pipe is subjected to long term hydrostatic pressure. The HDS at 73.4 °F is determined by reducing the HDB at 73.4 °F by a Design Service Factor (DSF), a multiplieroflessthan1.0.
3.1.13
MRS (minimum required strength)
The Minimum Required Strength (MRS) is the categorized lowerprediction limit (LPL) of the long-term hydrostatic strength at 20°Cdetermined in accordance with ISO 9080 and ISO 12162.
CRS (Categorized Required Strength)
The Categorized Required Strength, CRS θ,t, is the categorized lowerprediction limit (LPL) of the long-term hydrostatic strength at atemperature (θ) and a time (t) as determined in accordance with ISO9080 and ISO 12162. CRS θ,t , at 20°C and 50 years equals MRS.
design stress (σS)—stress equal to the Minimum Required Strength (MRS) or Categorized Required Strength (CRS) divided by the design coefficient (C) for water.
σS = MRS / C or CRS / C(1)
σS = MRS / 1.25 (for this standard)
3.1.13
lotnumber
Assignmentofauniquecodetoeachlotofmanufacturedpipeorfittingsunderthesameconditionsofproduction.Lot numbersareusedtomaintainproductionidentificationandtraceability.
3.1.14
ovality
The maximum measured diameter, minus the minimum measured diameter, divided by the average measured diameter,times100,expressedasapercentage:
3.1.15
Material designation code
Asetoflettersandnumbersusedtoidentifystress-ratedthermoplasticcompounds.Thecodeconsistsoftwoorthree letters which describe the type of material i.e. PE, PVC, PB, PEX, etc., per ASTM D1600. This is followed by four numbers to describe material and physical properties in accordance with PPI TR-4.
3.1.16
reducers
Componentfittingsthatallowtwopipesofdifferentdiameterstobeconnected.
3.1.17
shall
Inthisdocument,theword“shall”isusedtoindicaterequirements,whicharemandatory.
3.1.20
StandardDimensionRatio(SDR)orDimensionRatio(DR)
Interchangeablyusedtermsequaltotheratioofapipe’soutsidediametertoitswallthickness.
3.1.21
Standard Pressure Rating(PR)
Theestablishedmaximumpressurethatafluidinthepipecanexertcontinuouslywithahighdegreeofcertaintythat failureinthepipewillnotoccur.
3.1.22
TemperatureServiceFactor(TSF)
Factor applied to the HDS to compensate for the circumstance where elevated temperature HDB data is not available.
3.1.23
visualexamination
Examinationofpartsandequipmentforvisibledefectsinmaterialandworkmanship.
3.1.24
workingpressure
Themaximumanticipated,sustainedoperatingpressureappliedtothepipeinactualservice. – what is the difference between this para. and para.3.1.21?
3.2Abbreviations
ANSIAmericanNationalStandards InstituteAPIAmericanPetroleumInstitute
ASTMAmericanSocietyofTestingandMaterialsDSFDesignServiceFactor
DRDimensionRatio
HDBHydrostaticDesignBasis
HDSHydrostatic DesignStressLTHSLong-termHydrostaticStrengthPPIPlasticsPipeInstitute,Inc.
ISOInternational Organization forStandardization
DINDeutsch Institute for Norms
MRSMinimum required stress
CRSCategorized Required Strength
4Design
4.1Long Term Hydrostatic Strength (LTHS)
Either the HDB or ISO 9080 long term strength shall be used to establish the maximum operating pressure of a PEX piping system. The design process shall include consideration of uncertainties in manufacture, transportation and installation, which comprises the Design Factor; and the chemical environment which is included in the Fluid Service Factor (FSF).
4.2Calculating the Maximum Operating Pressure
4.2.1To use the HDB
1)Select the appropriate HDB based on the anticipated operating temperature
2)Values for maximum operating pressure in water service are listed in Table 1.
3)An appropriate Fluid Service Factor shall be used from Table 3. To calculate the Maximum Operating Pressure, multiply the appropriate pressure from Table 1 by the appropriate FSF from Table 3.
4)If the selected PEX grade also has an ISO 9080 rating from an ISO 17025 certified laboratory the pressure values in Table 1 may be multiplied by 1.14 to calculate a higher maximum operating pressure.
5)When calculating a HDB between 23° C (73.4 °F) and the elevated temperature at which the manufacturer has an established HDB, the HDB at any intermediate temperature may be calculated by linear interpolation using the method described in PPI TR-3.
Table 1: Maximum Operating Pressure (psi) of PEX pipe at various temperatures with no fluid service factor applied. The design factor is 0.7.
Temperature°C (°F) / Material Designation Code / HDB (psi) / Maximum Operating Pressure, psig for the Indicated SDR
SDR 7.4 / SDR 9 / SDR 11 / SDR 13.6 / SDR 17
23 (73) / PEX xxx6 / 1250 / 273 / 219 / 175 / 139 / 109
PEX xxx8
PEX xxx8 / 1600 / 350 / 280 / 224 / 178 / 140
60 (140) / PEX xxx6 / 8001 / 208 / 166 / 133 / 105 / 83
PEX xxx8 / 10001 / 233 / 186 / 149 / 118 / 93
82 (180) / PEX xxx6
PEX xxx8 / 800 / 175 / 140 / 112 / 89 / 70
93 (200) / PEX xxx6
PEX xxx8 / 630 / 138 / 110 / 88 / 70 / 55
1 HDB was interpolated using the HDB values at 23° C and 82° C for the grades with the indicated Material Designation Code.
4.2.2To use the ISO 9080 Pressure Rating
1)Use Table 2 to determine the maximum operating pressure for pipe rated using the ISO 9080 method.
2)An appropriate Fluid Service Factor shall be used from Table 3. To calculate the Maximum Operating Pressure, multiply the appropriate pressure from Table 2 by the appropriate FSF from Table 3.
Table 2: Maximum working pressure (psig) for PEX pipes rated using ISO 9080, with a service factor of 1.25 for 20-year service life except for 90° C (15 years life) and 95° C (10 years life.)
Temperature°C (°F) / Maximum Operating Pressure (psig) for the indicated SDR
SDR 7.4 / SDR 9 / SDR 11 / SDR 13.6
10 (50) / 396 / 315 / 249 / 199
20 (68) / 351 / 278 / 220 / 175
30 (86) / 310 / 247 / 196 / 155
40 (104) / 277 / 219 / 174 / 138
50 (122) / 247 / 196 / 155 / 123
60 (140) / 220 / 174 / 138 / 110
70 (158) / 197 / 157 / 123 / 99
80 (176) / 175 / 139 / 110 / 88
90 (194) / 160 / 126 / 100 / 80
95 (203) / 152 / 120 / 96 / 75
4.2.3The Fluid Service Factors in Table 3 shall be used to account for possible chemical effects of the transported medium on the long-term performance of the piping and hazardous nature of the application.
Table 3: Fluid Service Factors (FSF)
Environment / FactorProduced water, seawater, brine, process water and other oilfield water based fluids excluding oilfield water containing > 2 % liquid hydrocarbons1 / 1.0
Dry gas gathering (no associated hydrocarbon liquids)2 / 1.0
Dry gas gathering that is subject to Canadian Federal Regulations3 / 1.0
Multiphase fluids, wet natural gas and liquid hydrocarbons / 0.5
1Water containing significant quantities of liquid hydrocarbons (> 2%) shall be treated as hydrocarbon liquids in this instance.
2Gas gathering in this standard refers to gas from a well or production source in a low population density area that is not subject to Department of Transportation, Office of Pipeline Safety, Title 49 CFR Part 192.
3CSA Z662 Clause 13.3.
4.2.4External CollapseRating
GuidelinesonthecollapseratingofpolyethylenepipearelaidoutinAnnexB.
5.2Dimensions andTolerances
5.2.1Size
PipefurnishedtothisspecificationshallcomplywiththedimensionsandtolerancesgiveninTable 5 or Table 6asspecifiedon the purchaseorder.
Inapplicationswherespecialconditionsorrequirementsdictatediameters,wallthicknessesordimensionsotherthan those listed in this table, if the PEX pipe is manufactured from PEX compounds meeting the requirements of this specificationandthestrengthanddesignbasisisthesame,meetingalltherequirementsofthisspecificationitshall beacceptable.
Fordiametersnotshowninthetable,thetoleranceshallbethesamepercentageasthatusedinthetableforthenext smallerlistedsize.
5.2.2Toe-in
Theoutsidediameterwhenmeasuredatthecutendofthepipelengthshallnotbemorethan1.5%smallerthanthe outside diameter specified in Table 5 or Table 6, when measured at any point within 1.5 pipe diameters or 11.8 in. (300 mm), whicheverisless,tothecutendofthepipelength.MeasurementsshallbemadeusingASTMD2122TestMethod.
5.2.3Eccentricity
The wall thickness variability as measured and calculated in accordance with ASTM D2122 Test Method in any diametricalcrosssectionofthepipeshouldnotexceed12% unless otherwise specified elsewhere in this standard.
5.2.4Length
Pipeshallbefurnishedincutlengthsorcoilsasspecifiedonthepurchaseorder.Twopieceselectro-fusedtogethertomake alengthareacceptable.MeasurementsshallbemadeusingASTMD2122TestMethod.
5.2.5Ovality
Theovalityofthepipeshallnotexceedthe tolerance in ASTM F2788.Otherfactors such as installation, compaction, static soil loading, exposure to high ambient temperature and vehicular loads may increaseovality.
6Process ofManufacture
Pipefurnishedtothisspecificationshallbeproducedbyextrusion.
Fittings shall be manufactured using polymers, metals, or composites and shall comply with the relevant product standards for that fitting type.
PEX pipes must be cross linked at least to the minimum level specified in this standard when leaving the production facility. Curing in the field and/or after installation is not permitted.
6.1Materials
6.1.1Basic Materials
6.1.1.1PEX pipe shall be made from polyethylene compounds which have been crosslinked by means such that the pipe meets the performance requirements of Section 6. For the use temperatures that the pipe will be marked for, the materials, procedure for mixing, and the process for crosslinking shall result in a product with pressure ratings as shown in Section 4.2, when determined in accordance with procedures no less restrictive than those of ISO 9080, ASTM D2837 or PPI TR-3.
6.1.1.2The HDB or MRS/CRS shall be established by the manufacturer in accordance with PPI TR-3 using ASTM D2837 or ISO 9080 methodology. PEX materials meeting the requirements of this specification shall be tested for long term hydrostatic strength witnessed or tested by a certified third party or, have an HDB and/or MRS listed in PPI TR-4.
6.1.2Color: If the color of the pipe is black, the formulation shall contain carbon black as a colorant, and the formulation shall meet the requirements of 6.2.3.
6.1.3UV Protection: Thepipe shall be protected against UV radiation and shall be marked with the maximum UV exposure time in years, based on the manufacturer’s testing of UV exposed pipe in accordance with Test Method F2657 or ISO 14531-1 Annex C. Longer periods and/or above ground installation are permissible based on the agreement between the customer andthe manufacturer.
6.2Rework/recycled Material
Rework or recycled material is not permitted.
6.3Fittings
Fittings furnished for use with this specification shall meet requirements of specification ASTM F1055 or ISO 8083 for electrofusion fittings, ASTM F2206 or ISO 4427 part 3 for fabricated fittings and ASTM D2683 for socket fused fittings.
6.4Finish andWorkmanship
6.4.1PipeEnds
Pipeendsshallbeplainandsquared.
Pipe ends may also be supplied with a flared end – conditions shall be agreed between purchaserandthe seller.
6.4.2Finish
Theinteriorandexteriorofthepipeshallbeuniforminfinishwithoutvoids,cracks,crazing,foreigninclusionsordeep scratches.
6.4.3Workmanship
Cutpipeendsshallbecleanwithoutledges,shavingtails,burrsorcracks.
Theinteriorofthepipeshallbeblownorwashedcleanofcuttingsandshavings.
.
11
Table 4: Inch Dimensions and Tolerances Based on Outside Diameters
OutsideDiameter / WallThicknessNominal Size(in.) / in. / mm / DR / in. / mm
1/2 / 0.840 ±0.004 / 21.34 ±0.10 / 17
13.6
11
9
7.4 / 0.049 + 0.006
0.062 +0.007
0.076 + 0.009
0.093 +0.011
0.110 +0.014 / 1.26 + 0.15
1.57 +0.19
1.94 + 0.23
2.37 +0.28
2.88 +0.35
3/4 / 1.050 ±0.004 / 26.67 ±0.10 / 17
13.6
11
9
7.4 / 0.062 + 0.007
0.077 + 0.009
0.095 +0.011
0.117 +0.014
0.142 +0.017 / 1.57 + 0.19
1.96 + 0.24
2.42 +0.29
2.96 +0.36
3.60 +0.43
1 / 1.315 ±0.005 / 33.40 ±0.13 / 17
13.6
11
9
7.4 / 0.077 +0.009
0.097 +0.012
0.120 +0.014
0.146 +0.018
0.178 +0.021 / 1.96 +0.24
2.46 +0.29
3.04 +0.36
3.71 +0.45
4.57 +0.54
1 1/4in. / 1.660 ±0.005 / 42.16 ±0.13 / 17
13.6
11
9
7.4 / 0.098 +0.012
0.122 +0.015
0.151 +0.018
0.184 +0.022
0.224 +0.027 / 2.48 +0.30
3.10 +0.37
3.83 +0.46
4.67 +0.56
5.70 +0.68
1 1/2in. / 1.900 ±0.006 / 48.26 ±0.15 / 17
13.6
11
9
7.4 / 0.112 +0.013
0.140 +0.017
0.173 +0.021
0.211 +0.025
0.257 +0.031 / 2.84 +0.34
3.55 +0.43
4.39 +0.53
5.36 +0.64
6.52 +0.78
2in. / 2.375 ±0.006 / 60.33 ±0.15 / 17
13.6
11
9
7.4 / 0.140 +0.017
0.175 +0.021
0.216 +0.026
0.264 +0.032
0.321 +0.039 / 3.55 +0.43
4.44 +0.53
5.48 +0.66
6.70 +0.80
8.15 +0.99
2 1/2in. / 2.875 ±0.007 / 73.0 ±0.18 / 17
13.6
11
9
7.4 / 0.169 +0.020
0.211 +0.025
0.261 +0.031
0.319 +0.038
0.389 +0.047 / 4.30 +0.52
5.37 +0.64
6.64 +0.80
8.11 +0.97
9.87+1.18
Table4: Inch DimensionandTolerancesBasedonOutsideDiameters (Continued)
OutsideDiameter / WallThicknessNominal Size(in.) / in. / mm / DR / in. / mm
3in. / 3.500 ±0.016 / 88.90 ±0.41 / 17
13.6
11
9
7.4 / 0.206 +0.025
0.257 + .031
0.318 +0.038
0.389 +0.047
0.473 + 0.057 / 5.23 +0.64
6.53 + 0.78
8.08 +0.97
9.88 +1.19
12.01 + 1.44
4in. / 4.500 ±0.020 / 114.30 ±0.51 / 17
13.6
11
9
7.4 / 0.265 +0.032
0.331 + 0.040
0.409 +0.049
0.500 +0.060
0.608 + 0.073 / 6.73 +0.81
8.40 + 1.01
10.39 +1.24
12.70 +1.52
15.45 + 1.85
5in. / 5.563 ±0.025 / 141.30 ±0.64 / 17
13.6
11
9
7.4 / 0.328 +0.039
0.409 + 0.049
0.506 +0.061
0.618 +0.075
0.752 + 0.090 / 8.33 +0.99
10.39 + 1.25
12.85 +1.54
15.65 +1.88
19.09 + 2.29
6in. / 6.625 ±0.030 / 168.28 ±0.76 / 17
13.6
11
9
7.4 / 0.390 +0.047
0.487 + 0.058
0.602 +0.072
0.736 +0.088
0.895 + 0.107 / 9.91 +1.19
12.37 + 1.48
15.29 +1.83
18.69 +2.24
22.74 + 2.73
8in. / 8.625 ±0.039 / 219.08 ±0.99 / 17
13.6
11
9
7.4 / 0.507 +0.061
0.634 + 0.076
0.784 +0.094
0.958 +0.115
1.166 + 0.140 / 12.88 +1.55
16.11 + 1.93
19.91 +2.39
24.33 +2.92
29.6 + 3.55
Table4: Inch DimensionandTolerancesBasedonOutsideDiameters (Continued)
OutsideDiameter / WallThicknessNominal Size(in.) / in. / mm / DR / in. / mm
10in. / 10.750 ±0.048 / 273.05 ±0.1.22 / 17
13.6
11
9
7.4 / 0.632 +0.076
0.790 + 0.095
0.977 +0.117
1.194 +0.143
1.453 + 0.174 / 16.05 +1.93
20.08 + 2.41
24.82 +2.97
30.33 +3.63
36.90 + 4.43
12in. / 12.750 ±0.057 / 323.85 ±0.1.45 / 17
13.6
13.5
11
9
7.4 / 0.750 +0.090
0.938 _ 0.113
0.944 +0.113
1.159 +0.139
1.417 +0.170
1.723 + 0.207 / 19.05 +2.29
23.81 + 2.86
23.98 +2.87
29.44 +3.53
35.99 +4.32
43.76 + 5.25
14in. / 14.000 ±0.063 / 355.60 ±1.60 / 17
13.6
11
9
7.4 / 0.824 +0.099
1.029 + 0.124
1.273 +0.153
1.556 +0.187
1.892 + 0.227 / 20.93 +2.51
26.15 + 3.14
32.33 +3.89
39.52 +4.75
48.05 + 5.77
16in. / 16.000 ±0.072 / 406.40 ±1.83 / 17
13.6
11
9
7.4 / 0.941 +0.113
1.176 + 0.141
1.455 +0.175
1.778 +0.213
2.162 + 0.259 / 23.90 +2.87
29.88 +3.59
36.96 +4.45
45.16 +5.41
54.92 + 6.59
18in. / 18.000 ±0.081 / 457.20 ±2.05 / 17
13.6
11
9
7.4 / 1.059 +0.127
1.342 + 0.159
1.636 +0.196
2.000 +0.240
2.434 + 0.292 / 26.90 +3.23
33.62 + 4.03
41.55 +4.98
50.80 +6.10
61.78 + 7.41
Table4: Inch DimensionandTolerancesBasedonOutsideDiameters (Continued)
OutsideDiameter / WallThicknessNominal Size(in.) / in. / mm / DR / in. / mm
20in. / 20.000 ±0.090 / 508.00 ±2.29 / 17
13.6
11
9
7.4 / 1.176 +0.141
1.471 + 0.176
1.818 +0.218
2.222 +0.267
2.703 + 0.324 / 29.87 +3.58
37.35 + 4.48
46.18 +5.54
56.44 +6.78
68.65 + 8.24
22in. / 22.000 ±0.099 / 558.80 ±2.51 / 17
13.6
11
9
7.4 / 1.294 +0.155
1.618 + 0.194
2.000 +0.240
2.444 +0.293
2.973 + 0.357 / 32.87 +3.94
41.09 + 4.93
50.80 +6.10
62.08 +7.44
75.51 + 9.06
24in. / 24.000 ±0.108 / 609.60 ±2.74 / 17
13.6
11
9
7.4 / 1.412 +0.169
1.765 + 0.212
2.182 +0.262
2.667 +0.320
3.243 + 0.389 / 35.86 +4.29
44.82 + 5.38
55.42 +6.65
67.74 +8.13
82.38 + 9.89
26in. / 26.000 ±0.117 / 660.40 ±2.97 / 17
13.6
11
9
7.4 / 1.529 + 0.184
1.912 + 0.229
2.364 + 0.284
2.889 + 0.347
3.517 + 0.422 / 38.84 + 4.66
48.56 + 5.83
60.05 + 7.20
73.38 + 8.81
89.24 + 10.71
28in. / 28.000 ±0.126 / 711.20 ±3.20 / 17
13.6
11
9
7.4 / 1.647 + 0.189
2.059 + 0.247
2.545 + 0.305
3.111 + 0.373
3.784 + 0.454 / 41.84 + 5.02
52.29 + 6.28
64.65 + 7.76
79.02 + 9.48
96.11 + 11.53
30in. / 30.000 ±0.135 / 762.00 ±3.43 / 17
13.6
11
9
7.4 / 1.765 + 0.212
2.206 + 0.265
2.727 + 0.327
3.333 + 0.400
4.054 + 0.486 / 44.82 + 5.38
56.03 + 6.72
69.27 + 8.31
84.67 + 10.16
102.97 + 12.36
32in. / 32.000 ±0.144 / 812.80 ±3.66 / 17
13.6
11
9
7.4 / 1.882 + 0.226
2.353 + 0.282
2.909 + 0.349
3.556+ 0.427
4.324 + 0.519 / 47.81 + 5.74
59.76 + 7.17
73.89 + 8.87
90.31 + 10.84
109.84 + 13.18
34in. / 34.000 ±0.153 / 863.60 ±3.89 / 17
13.6
11
9
7.4 / 2.000 + 0.240
2.50 + 0.300
3.091 + 0.371
3.778 + 0.453
4.595 + 0.551 / 50.80 + 6.10
63.50 + 7.62
78.51 + 9.42
95.96 + 11.51
116.71 + 14.00
Table4:Inch DimensionandTolerancesBasedonOutsideDiameters (Continued)
OutsideDiameter / WallThicknessNominal Size(in.) / in. / mm / DR / in. / mm
36in. / 36.000 ±0.162 / 914.40 ±4.11 / 17
13.6
11
9
7.4 / 2.112 + 0.254
2.647 + 0.318
3.273 + 0.373
4.000 + 0.480
4.865 + 0.584 / 53.79 + 6.45
67.24 + 8.07
83.13 + 9.98
101.60 + 12.19
123.57 + 14.83
42in. / 42.000 ±0.189 / 1066.80 ±4.80 / 17
13.6
11
9
7.4 / 2.471 + 0.496
3.088 + 0.371
3.818 + 0.458
4.667 + 0.650
5.676 + 0.681 / 62.75 + 7.53
78.44 + 9.41
96.98 + 11.64
118.53 + 14.22
144.16 + 17.30
48in. / 48.000 ±0.216 / 1219.20 ±5.49 / 17
13.6
11
9
7.4 / 2.824 + 0.339
3.529 + 0.424
4.364 + 0.524
5.333 + 0.640
6.486 + 0.778 / 71.72 + 8.61
89.65 + 10.76
110.840+ 13.30
135.47 + 16.26
164.76 + 19.77
54in. / 54.000 ±0.243 / 1371.60 ±6.17 / 17
13.6
11
9
7.4 / 3.176 + 0.381
3.971 + 0.476
4.909 + 0.589
6.000 + 0.720
7.297 + 0.876 / 80.68 + 9.68
100.85 + 12.10
124.69 + 14.96
152.40 + 18.29
185.35 + 22.24
NOTES
1)Pipedimensionsandscheduleslistedaremostcommonlyusedbytheoilandgasindustries.Additionalsizesandschedulesare available.ThecompletelistofsizesandschedulesarelistedinthefollowingASTMstandards:
ASTM F2968/F2968M, Standard Specification forBlack Crosslinked Polyethylene (PEX) Pipe, Fittings andJoints For Gas Distribution Applications
ASTM F2905/F2905M, Standard Specification forBlack Crosslinked Polyethylene (PEX) Line Pipe, Fittingsand Joints For Oil and Gas Producing Applications
Table 5: Metric Dimensions and Tolerances Based on Outside Diameters
Minimum Wall Thickness, mmTolerance is plus 12%, rounded to the nearest 0.1 mm
Diameter Nominal / DR 7.4 / SDR 9 / SDR 11 / DR 13.6 / SDR 17
16 / 2.3 / 2.0 / ... / ... / ...
20 / 3.0 / 2.3 / 2.0 / ... / ...
25 / 3.5 / 3.0 / 2.3 / 2.0 / ...
32 / 4.4 / 3.6 / 3.0 / 2.4 / 2.3
40 / 5.5 / 4.5 / 3.7 / 3.0 / 2.8
50 / 6.9 / 5.6 / 4.6 / 3.7 / 3.4
63 / 8.6 / 7.1 / 5.8 / 4.7 / 4.3
75 / 10.3 / 8.4 / 6.8 / 5.6 / 5.1
90 / 12.3 / 10.1 / 8.2 / 6.7 / 6.1
110 / 15.1 / 12.3 / 10.0 / 8.1 / 7.4
125 / 17.1 / 14.0 / 11.4 / 9.2 / 8.3
140 / 19.2 / 15.7 / 12.7 / 10.3 / 9.3
160 / 21.9 / 17.9 / 14.6 / 11.8 / 1.06
180 / 24.6 / 20.1 / 16.4 / 13.3 / 11.9
200 / 27.4 / 22.4 / 18.2 / 14.7 / 13.2
225 / 30.8 / 25.2 / 20.5 / 16.6 / 14.9
250 / 34.2 / 27.9 / 22.7 / 18.4 / 16.4
280 / 38.3 / 31.3 / 25.4 / 20.6 / 18.4
315 / 43.1 / 35.2 / 28.6 / 23.2 / 20.7
355 / 48.5 / 39.7 / 32.2 / 26.1 / 23.4
400 / 54.7 / 44.7 / 36.3 / 29.4 / 23.7
450 / 61.5 / 50.3 / 40.9 / 33.1 / 29.5
500 / ... / 55.8 / 45.4 / 36.8 / 32.8
560 / ... / 62.5 / 50.8 / 41.2 / 36.7
630 / ... / 70.3 / 57.2 / 46.3 / 41.3
710 / ... / 79.3 / 64.5 / 52.2 / 46.5
800 / ... / 89.3 / 72.6 / 58.8 / 52.3
900 / ... / ... / 81.7 / 66.2 / 58.8
1000 / ... / ... / 90.2 / 72.5 / 65.4
7QualityProgram