ASTM F2735-23

Standard Specification for Plastic Insert Fittings For SDR9 Cross-linked Polyethylene (PEX) and Polyethylene of Raised Temperature (PE-RT) Tubing

SCOPE
1.1 This specification establishes requirements for sulfone plastic insert fittings and copper crimp rings for three sizes (1/2 , 3/4 , and 1) of cross-linked polyethylene (PEX) tubing that meet the requirements for Specification F876 or F3253, and polyethylene of raised temperature (PE-RT) tubing that meet the requirements of Specification F2623. These fittings are intended for use in 100 psi (690 kPa) cold- and hot-water distribution systems operating at temperatures up to and including 180 °F (82 °C). Included are the requirements for material, molded part properties, performance, workmanship, dimensions, and markings to be used on the fittings and rings.  
1.2 Units—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.  
1.3 The following is an index of the appendix in this specification.    
GO/NO-GO Crimp Gauges  
Appendix X1  
1.4 The following precautionary caveat pertains only to the test method portions, Sections 11 and 12, 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.  
1.5 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.

General Information

• Status: Published
• Publication Date: 31-Mar-2023
• ICS: 23.040.45 - Plastics fittings
• Technical Committee: F17 - Plastic Piping Systems
• Drafting Committee: F17.10 - Fittings

Relations

• Refers: ASTM F412-20 - Standard Terminology Relating to Plastic Piping Systems
• Effective Date: 01-Apr-2020

Standards Content (Sample)

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: F2735 − 23 An American National Standard
Standard Specification for
Plastic Insert Fittings For SDR9 Cross-linked Polyethylene
(PEX) and Polyethylene of Raised Temperature (PE-RT)
1
Tubing
This standard is issued under the fixed designation F2735; 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* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification establishes requirements for sulfone
D1600 Terminology for Abbreviated Terms Relating to Plas-
plastic insert fittings and copper crimp rings for three sizes
tics
1 3
( ⁄2, ⁄4, and 1) of cross-linked polyethylene (PEX) tubing that
D2122 Test Method for Determining Dimensions of Ther-
meet the requirements for Specification F876 or F3253, and
moplastic Pipe and Fittings
polyethylene of raised temperature (PE-RT) tubing that meet
D2837 Test Method for Obtaining Hydrostatic Design Basis
the requirements of Specification F2623. These fittings are
for Thermoplastic Pipe Materials or Pressure Design Basis
intended for use in 100 psi (690 kPa) cold- and hot-water
for Thermoplastic Pipe Products
distribution systems operating at temperatures up to and
D6394 Classification System for and Basis for Specification
including 180 °F (82 °C). Included are the requirements for
for Sulfone Plastics (SP)
material, molded part properties, performance, workmanship,
F412 Terminology Relating to Plastic Piping Systems
dimensions, and markings to be used on the fittings and rings.
F876 Specification for Crosslinked Polyethylene (PEX) Tub-
ing
1.2 Units—The values stated in inch-pound units are to be
F877 Specification for Crosslinked Polyethylene (PEX) Hot-
regarded as standard. The values given in parentheses are
and Cold-Water Distribution Systems
mathematical conversions to SI units that are provided for
F1498 Specification for Taper Pipe Threads 60° for Thermo-
information only and are not considered standard.
plastic Pipe and Fittings
1.3 The following is an index of the appendix in this
F1807 Specification for Metal Insert Fittings Utilizing a
specification.
Copper Crimp Ring, or Alternate Stainless Steel Clamps,
GO/NO-GO Crimp Gauges Appendix X1 for SDR9 Cross-linked Polyethylene (PEX) Tubing and
SDR9 Polyethylene of Raised Temperature (PE-RT) Tub-
1.4 The following precautionary caveat pertains only to the
ing
test method portions, Sections 11 and 12, of this specification.
F1960 Specification for Cold Expansion Fittings with PEX
This standard does not purport to address all of the safety
Reinforcing Rings for Use with Cross-linked Polyethylene
concerns, if any, associated with its use. It is the responsibility
(PEX) and Polyethylene of Raised Temperature (PE-RT)
of the user of this standard to establish appropriate safety,
Tubing
health, and environmental practices and determine the appli-
F2623 Specification for Polyethylene of Raised Temperature
cability of regulatory limitations prior to use.
(PE-RT) Systems for Non-Potable Water Applications
1.5 This international standard was developed in accor-
F3253 Specification for Crosslinked Polyethylene (PEX)
dance with internationally recognized principles on standard-
Tubing with Oxygen Barrier for Hot- and Cold-Water
ization established in the Decision on Principles for the
Hydronic Distribution Systems
Development of International Standards, Guides and Recom- 3
2.2 ASME Standard:
mendations issued by the World Trade Organization Technical
B1.20.1 Pipe Threads General Purpose Inch
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
1
This specification is under the jurisdiction of ASTM Committee F17 on Plastic Standards volume information, refer to the standard’s Document Summary page on
Piping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings. the ASTM website.
3
Current edition approved April 1, 2023. Published April 2023. Originally Available from American Society of Mechanical Engineers (ASME), ASME
approved in 2008. Last previous edition approved in 2021 as F2735–21. International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
DOI:10.1520/F2735–23. www.asme.org.
*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
1

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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: F2735 − 21 F2735 − 23 An American National Standard
Standard Specification for
Plastic Insert Fittings For SDR9 Cross-linked Polyethylene
(PEX) and Polyethylene of Raised Temperature (PE-RT)
1
Tubing
This standard is issued under the fixed designation F2735; 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*
1.1 This specification establishes requirements for sulfone plastic insert fittings and copper crimp rings for three sizes
1 3
( ⁄2, ⁄4, and 1) of cross-linked polyethylene (PEX) tubing that meet the requirements for Specification F876 or F3253, and
polyethylene of raised temperature (PE-RT) tubing that meet the requirements of Specification F2623. These fittings are intended
for use in 100 psi (690 kPa) cold- and hot-water distribution systems operating at temperatures up to and including 180 °F (82 °C).
Included are the requirements for material, molded part properties, performance, workmanship, dimensions, and markings to be
used on the fittings and rings.
1.2 Units—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.
1.3 The following is an index of the appendix in this specification.
GO/NO-GO Crimp Gauges Appendix X1
1.4 The following precautionary caveat pertains only to the test method portions, Sections 11 and 12, 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.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1600 Terminology for Abbreviated Terms Relating to Plastics
D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
D2837 Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for
Thermoplastic Pipe Products
D6394 Classification System for and Basis for Specification for Sulfone Plastics (SP)
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 May 1, 2021April 1, 2023. Published May 2021April 2023. Originally approved in 2008. Last previous edition approved in 2020 as F2735–20.
DOI:10.1520/F2735–21.2021 as F2735–21. DOI:10.1520/F2735–23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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
1

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F2735 − 23
F412 Terminology Relating to Plastic Piping Systems
F876 Specification for Crosslinked Polyethylene (PEX) Tubing
F877 Specification for Crosslinked Polyethylene (PEX) Hot- and Cold-Water Distribution Systems
F1498 Specification for Taper Pipe Threads 60° for Thermoplastic Pipe and Fittings
F1807 Specification for Metal Insert Fittings Utilizing a Copper Crimp Ring, or Alternate Stainless Steel Clamps, for SDR9
Cross-linked Polyethylene (PEX) Tubing and SDR9 Polyethylene of Raised Temperature (PE-RT) Tubing
F1960 Specification for Cold Expansion Fittings with PEX Reinforcing Rings for Use with Cross-linked Polyethylene (PEX)
and Polyethylene of Raised Temperature (PE-RT) Tubing
F2623 Specification for Polyethylene of Raised Temperature (PE-RT) Systems for Non-Potable Water Applications
F3253 Specification for Crosslinked Polyethylene (PEX) Tubing with Oxygen Barrier for Hot- and Cold-Water Hydronic
Distribution Systems
3
2.2 ASME St
...