ASTM F3373-21
(Specification)Standard Specification for Polyethylene (PE) Electrofusion Fittings for Outside Diameter Controlled Crosslinked Polyethylene (PEX) Pipe
Standard Specification for Polyethylene (PE) Electrofusion Fittings for Outside Diameter Controlled Crosslinked Polyethylene (PEX) Pipe
SCOPE
1.1 This specification covers polyethylene (PE 4710) electrofusion fittings for use with outside diameter-controlled crosslinked polyethylene (PEX) pipe, covered by Specifications F2788/F2788M, F2905/F2905M and F2968/F2968M. As stated in these PEX pipe standards, the PEX pipes joined to these PE 4710 electrofusion fittings have an HDB of 1250 psi or 1600 psi at 73 °F (23 °C) per Test Method D2837. Requirements for all metric-sized and inch-sized fittings for use with PEX pipe, made in accordance to these three pipe standards, are specified in Specification F2829/F2829M.
1.2 The maximum allowable operating temperature of electrofusion fittings made in accordance with this standard is limited to the highest temperature at which the HDB of the PE 4710 has been determined. When joined to PEX pipe having a higher temperature HDB, the maximum use temperature for the PE/PEX joint is limited to the elevated temperature HDB rating of the PE material in the fitting
Note 1: PEX and PE 4710 materials can have different elevated temperature ratings, and when joined together, the lower maximum elevated temperature rating will limit the maximum operating temperature. Per Table 1, the required PE 4710 material must have an HDB at 140 °F (60 °C), but may have an HDB at 180 °F (82 °C). PEX pipes generally have HDB ratings at 180 °F (82 °C) or 200 °F (93 °C) or both. When joined to PEX pipe, PE 4710 electrofusion fittings made in accordance with this standard may limit the maximum operating temperature to 140 °F (60 °C) where the PE 4710 material used does not have an optional higher temperature HDB rating.
1.3 Requirements for materials, workmanship, and qualification testing performance are included. The PE electrofusion fitting manufacturer shall assure that fittings produced in accordance with this specification comply with all the requirements of this specification. If a PEX pipe manufacturer deems that their pipe is suitable for joining to polyethylene (PE) electrofusion fittings, the PEX pipe manufacturer shall qualify their PEX pipe by testing joints made with these PE electrofusion fittings, and assuring that the joints meet the performance requirements of this specification.
1.4 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.
1.5 The following safety hazards caveat pertains only to the test method portion, Section 9, of this specification: 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.
1.6 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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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.
Designation:F3373 −21 An American National Standard
Standard Specification for
Polyethylene (PE) Electrofusion Fittings for Outside
1
Diameter Controlled Crosslinked Polyethylene (PEX) Pipe
This standard is issued under the fixed designation F3373; 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* 1.4 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
1.1 This specification covers polyethylene (PE 4710) elec-
conversions to SI units that are provided for information only
trofusion fittings for use with outside diameter-controlled
and are not considered standard.
crosslinked polyethylene (PEX) pipe, covered by Specifica-
1.5 The following safety hazards caveat pertains only to the
tions F2788/F2788M, F2905/F2905M and F2968/F2968M.As
test method portion, Section 9, of this specification: This
stated in these PEX pipe standards, the PEX pipes joined to
standard does not purport to address all of the safety concerns,
these PE 4710 electrofusion fittings have an HDB of 1250 psi
if any, associated with its use. It is the responsibility of the user
or 1600 psi at 73 °F (23 °C) per Test Method D2837. Require-
of this standard to establish appropriate safety, health, and
ments for all metric-sized and inch-sized fittings for use with
environmental practices and determine the applicability of
PEX pipe, made in accordance to these three pipe standards,
regulatory limitations prior to use.
are specified in Specification F2829/F2829M.
1.6 This international standard was developed in accor-
1.2 The maximum allowable operating temperature of elec-
dance with internationally recognized principles on standard-
trofusion fittings made in accordance with this standard is
ization established in the Decision on Principles for the
limited to the highest temperature at which the HDB of the PE
Development of International Standards, Guides and Recom-
4710 has been determined. When joined to PEX pipe having a
mendations issued by the World Trade Organization Technical
higher temperature HDB, the maximum use temperature for
Barriers to Trade (TBT) Committee.
the PE/PEX joint is limited to the elevated temperature HDB
rating of the PE material in the fitting
2. Referenced Documents
2
NOTE 1—PEX and PE 4710 materials can have different elevated
2.1 ASTM Standards:
temperature ratings, and when joined together, the lower maximum
D638 Test Method for Tensile Properties of Plastics
elevated temperature rating will limit the maximum operating tempera-
D1598 Test Method for Time-to-Failure of Plastic Pipe
ture. Per Table 1, the required PE 4710 material must have an HDB at
Under Constant Internal Pressure
140 °F (60 °C), but may have an HDB at 180 °F (82 °C). PEX pipes
generally have HDB ratings at 180 °F (82 °C) or 200 °F (93 °C) or both. D1599 Test Method for Resistance to Short-Time Hydraulic
When joined to PEX pipe, PE 4710 electrofusion fittings made in
Pressure of Plastic Pipe, Tubing, and Fittings
accordance with this standard may limit the maximum operating tempera-
D1600 Terminology forAbbreviatedTerms Relating to Plas-
ture to 140 °F (60 °C) where the PE 4710 material used does not have an
tics
optional higher temperature HDB rating.
D2837 Test Method for Obtaining Hydrostatic Design Basis
1.3 Requirements for materials, workmanship, and qualifi-
forThermoplasticPipeMaterialsorPressureDesignBasis
cation testing performance are included. The PE electrofusion
for Thermoplastic Pipe Products
fitting manufacturer shall assure that fittings produced in
D3350 Specification for Polyethylene Plastics Pipe and Fit-
accordance with this specification comply with all the require-
tings Materials
ments of this specification. If a PEX pipe manufacturer deems
F412 Terminology Relating to Plastic Piping Systems
that their pipe is suitable for joining to polyethylene (PE)
F905 Practice for Qualification of Polyethylene Saddle-
electrofusion fittings, the PEX pipe manufacturer shall qualify
Fused Joints
their PEX pipe by testing joints made with these PE electro-
F1473 Test Method for Notch Tensile Test to Measure the
fusion fittings, and assuring that the joints meet the perfor-
Resistance to Slow Crack Growth of Polyethylene Pipes
mance requirements of this specification.
and Resins
1
This specification is under the jurisdiction ofASTM Committee F17 on Plastic
2
Piping Systems and is the direct responsibility of Subcommittee F17.
...
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: F3373 − 20 F3373 − 21 An American National Standard
Standard Specification for
Polyethylene (PE) Electrofusion Fittings for Outside
1
Diameter Controlled Crosslinked Polyethylene (PEX) Pipe
This standard is issued under the fixed designation F3373; 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 Scope*
1.1 This specification covers polyethylene (PE 4710) electrofusion fittings for use with outside diameter-controlled crosslinked
polyethylene (PEX) pipe, covered by Specifications F2788/F2788M, F2905/F2905M and F2968/F2968M. As stated in these PEX
pipe standards, the PEX pipes joined to these PE 4710 electrofusion fittings have an HDB of 1250 psi or 1600 psi at 73 °F (23 °C)
per Test Method D2837. Requirements for all metric-sized and inch-sized fittings for use with PEX pipe, made in accordance to
these three pipe standards, are specified in Specification F2829/F2829M.
1.2 The maximum allowable operating temperature of electrofusion fittings made in accordance with this standard is limited to
the highest temperature at which the HDB of the PE 4710 has been determined. When joined to PEX pipe having a higher
temperature HDB, the maximum use temperature for the PE/PEX joint is limited to the elevated temperature HDB rating of the
PE material in the fitting
NOTE 1—PEX and PE 4710 materials can have different elevated temperature ratings, and when joined together, the lower maximum elevated temperature
rating will limit the maximum operating temperature. Per Table 1, the required PE 4710 material must have an HDB at 140 °F (60 °C), but may have
an HDB at 180 °F (82 °C). PEX pipes generally have HDB ratings at 180 °F (82 °C) or 200 °F (93 °C) or both. When joined to PEX pipe, PE 4710
electrofusion fittings made in accordance with this standard may limit the maximum operating temperature to 140 °F (60 °C) where the PE 4710 material
used does not have an optional higher temperature HDB rating.
1.3 Requirements for materials, workmanship, and qualification testing performance are included. The PE electrofusion fitting
manufacturer shall assure that fittings produced in accordance with this specification comply with all the requirements of this
specification. If a PEX pipe manufacturer deems that their pipe is suitable for joining to polyethylene (PE) electrofusion fittings,
the PEX pipe manufacturer shall qualify their PEX pipe by testing joints made with these PE electrofusion fittings, and assuring
that the joints meet the performance requirements of this specification.
1.4 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.
1.5 The following safety hazards caveat pertains only to the test method portion, Section 9, of this specification: 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.
1.6 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.
1
This specification is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings.
Current edition approved June 1, 2020May 1, 2021. Published July 2020May 2021. Originally approved in 2020. Last previous edition approved in 2020 as F3373–20.
DOI: 10.1520/F3373–2010.1520/F3373–21
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F3373 − 21
TABLE 1 Specification D3350 Classification Requirements and
Properties of Polyethylene Electrofusion Fitting Materials
Physical Properties Cell Classification and Properties for
PE 4710 Material
Density 4
Melt Index 4
Flexural
...
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