ASTM F2165-19

Standard Specification for Flexible Pre-Insulated Plastic Piping

ABSTRACT
This specification establishes the materials and performance requirements for flexible, pre-insulated piping intended for hot and chilled water applications. Piping system may include one or more carrier pipes within a common outer jacket and shall be supplied in coil form. Carrier-pipe, thermal-insulation, and protective-jacket material shall be continuous and uniform throughout the coil while connections and joints in the carrier pipe and the protective jacket shall not be allowed within the coil. The pipe assembly shall be subjected to end seal and bending force tests for water infiltration inspection and to ensure the flexibility of the piping system, respectively.
SCOPE
1.1 This specification covers flexible, pre-insulated plastic piping systems commonly used to convey hot and cold fluids, including piping systems that are supplied complete with plastic carrier pipe, thermal insulation, and outer jacket manufactured as an integrated system, and are supplied in a coil or as a straight length. Both bonded and non-bonded insulation types are included. Included are requirements and test methods for material, workmanship, dimensions, and endseal testing. Requirements for markings are also given. The components covered by this specification are intended for use in, but not limited to, residential and commercial, hot- and cold-potable water distribution systems, reclaimed water, fire protection, municipal water service lines, radiant heating and cooling systems, hydronic distribution systems, snow and ice melting systems, geothermal ground loops, district heating, turf conditioning, compressed air distribution and building services pipe, provided that the carrier pipe or tubing covered herein complies with applicable code requirements.  
1.2 Piping systems may include one or more carrier pipes within a common outer jacket.  
1.3 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered part of this standard.
Note 1: Pre-insulated pipes covered by this specification are typically installed underground in buried applications.  
1.4 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.  
1.5 The following safety hazards caveat pertains to the test methods portion, Section 7, 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.

General Information

• Status: Published
• Publication Date: 31-Dec-2018
• ICS: 23.040.70 - Hoses and hose assemblies
• Technical Committee: F17 - Plastic Piping Systems
• Drafting Committee: F17.11 - Composite

Relations

• Replaces: ASTM F2165-13 - Standard Specification for Flexible Pre-Insulated Piping
• Effective Date: 01-Jan-2019
• Refers: ASTM C168-24 - Standard Terminology Relating to Thermal Insulation
• Effective Date: 15-Apr-2024
• Refers: ASTM F3253-24 - Standard Specification for Crosslinked Polyethylene (PEX) Tubing with Oxygen Barrier for Hot- and Cold-Water Hydronic Distribution Systems
• Effective Date: 01-Feb-2024
• Refers: ASTM F2769-24 - Standard Specification for Polyethylene of Raised Temperature (PE-RT) Plastic Hot and Cold-Water Tubing and Distribution Systems
• Effective Date: 01-Feb-2024
• Refers: ASTM F876-24 - Standard Specification for Crosslinked Polyethylene (PEX) Tubing
• Effective Date: 01-Feb-2024
• Refers: ASTM F714-24 - Standard Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Outside Diameter
• Effective Date: 01-Feb-2024
• Refers: ASTM F1281-24 - Standard Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe
• Effective Date: 01-Feb-2024
• Refers: ASTM F876-23a - Standard Specification for Crosslinked Polyethylene (PEX) Tubing
• Effective Date: 01-Dec-2023
• Refers: ASTM F412-20 - Standard Terminology Relating to Plastic Piping Systems
• Effective Date: 01-Apr-2020
• Refers: ASTM F412-19 - Standard Terminology Relating to Plastic Piping Systems
• Effective Date: 01-Jan-2019
• Refers: ASTM F3253-18 - Standard Specification for Crosslinked Polyethylene (PEX) Tubing with Oxygen Barrier for Hot- and Cold-Water Hydronic Distribution Systems
• Effective Date: 01-Aug-2018
• Refers: ASTM C168-18 - Standard Terminology Relating to Thermal Insulation
• Effective Date: 15-Apr-2018
• Refers: ASTM F3123-18 - Standard Specification for Metric Outside Diameter Polyethylene (PE) Plastic Pipe (DR-PN)
• Effective Date: 01-Apr-2018
• Refers: ASTM D1600-18 - Standard Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)
• Effective Date: 01-Jan-2018
• Refers: ASTM F3253-17 - Standard Specification for Crosslinked Polyethylene (PEX) Tubing with Oxygen Barrier for Hot- and Cold-Water Hydronic Distribution Systems
• Effective Date: 01-Dec-2017

Overview

ASTM F2165-19, titled Standard Specification for Flexible Pre-Insulated Plastic Piping, is an internationally recognized standard developed by ASTM International. This specification defines the material and performance requirements for flexible, pre-insulated plastic piping systems designed for conveying hot and cold fluids. These systems typically include a plastic carrier pipe, thermal insulation, and a protective outer jacket, all manufactured as an integrated product, often supplied in coil form.

Pre-insulated plastic piping is widely used in residential, commercial, and municipal applications, notably for hot- and cold-potable water distribution, hydronic heating and cooling, district heating, snow and ice melting, and other specialty systems. The standard ensures that these piping systems meet strict criteria for workmanship, dimensions, insulation properties, and end-seal testing.

Key Topics

• Piping System Components

  • Carrier Pipe: The core pipe(s) that transports fluids, which can be made from various plastics such as PEX, PE, PP, PE-RT, or composites.
  • Thermal Insulation: Must be continuous and undamaged throughout the coil, offering maximum permissible thermal conductivity for energy efficiency.
  • Protective Outer Jacket: Provides mechanical and moisture protection, often constructed from watertight, UV-resistant polyethylene.

• Performance Requirements

  • Uniform and continuous construction through the length of coils
  • End-seal integrity to prevent water intrusion and safeguard thermal insulation
  • Flexibility validated by bending-force tests, ensuring ease of installation

• Material Specifications

  • Compliance with referenced ASTM, DIN, ISO, and NSF/ANSI standards for pipe, insulation, and fittings, ensuring interoperability and code compliance
  • Quality control for insulation, outer jacket thickness, and identification markings

• Marking and Certification

  • Mandatory product and package markings for traceability, including manufacturer, pipe size, pressure ratings, standard designations, and coil numbers
  • Certification of compliance and testing as required by the purchaser

Applications

Flexible pre-insulated plastic piping systems covered under ASTM F2165-19 offer versatile and efficient solutions in demanding environments:

• Hot and Chilled Water Distribution: Ideal for underground or above-ground installation in new and retrofit building services.
• Hydronic and Radiant Systems: Used in residential and commercial heating/cooling, snow and ice melting operations, and geothermal ground loops.
• Municipal & District Heating/Cooling: Provides reliable, energy-efficient distribution over long distances, often in buried installations.
• Fire Protection and Reclaimed Water: Suitable for delivering non-potable and potable water in municipal and industrial contexts.
• Compressed Air and Building Services: Useful in facility management for distributing various fluids securely and efficiently.

The flexibility, insulation performance, and corrosion resistance of plastic piping, as defined by this standard, make these systems an attractive alternative to traditional materials.

Related Standards

ASTM F2165-19 aligns with multiple domestic and international standards for materials and system performance, including:

• ASTM D2239, D3035, F714, F876, F2389, F2769, F2788, F3123, F3253: Specifications for various types of plastic pipe and tubing
• NSF/ANSI 14 & NSF/ANSI 61: Certifications for health, safety, and performance of plastic piping system components
• ISO 15875 & ISO 22391-2: International standards for plastic piping systems for hot and cold water installations
• DIN 8074, DIN 8075, DIN 8077, DIN 8078, DIN 16892, DIN 16893: German standards on plastic pipes and their performance

Using piping that conforms to ASTM F2165-19 helps ensure cost-effective, reliable, and energy-efficient fluid distribution-making it the standard of choice for flexible pre-insulated systems in a wide range of hot and cold water applications.

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: F2165 −19 An American National Standard
Standard Specification for
Flexible Pre-Insulated Plastic Piping
This standard is issued under the fixed designation F2165; 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* mental practices and determine the applicability of regulatory
limitations prior to use.
1.1 This specification covers flexible, pre-insulated plastic
1.6 This international standard was developed in accor-
piping systems commonly used to convey hot and cold fluids,
dance with internationally recognized principles on standard-
including piping systems that are supplied complete with
ization established in the Decision on Principles for the
plastic carrier pipe, thermal insulation, and outer jacket manu-
Development of International Standards, Guides and Recom-
factured as an integrated system, and are supplied in a coil or
mendations issued by the World Trade Organization Technical
as a straight length. Both bonded and non-bonded insulation
Barriers to Trade (TBT) Committee.
types are included. Included are requirements and test methods
for material, workmanship, dimensions, and endseal testing.
2. Referenced Documents
Requirements for markings are also given. The components
2.1 ASTM Standards:
covered by this specification are intended for use in, but not
C168 Terminology Relating to Thermal Insulation
limited to, residential and commercial, hot- and cold-potable
C177 Test Method for Steady-State Heat Flux Measure-
water distribution systems, reclaimed water, fire protection,
ments and Thermal Transmission Properties by Means of
municipal water service lines, radiant heating and cooling
the Guarded-Hot-Plate Apparatus
systems, hydronic distribution systems, snow and ice melting
D1600 TerminologyforAbbreviatedTermsRelatingtoPlas-
systems, geothermal ground loops, district heating, turf
tics
conditioning, compressed air distribution and building services
D2122 Test Method for Determining Dimensions of Ther-
pipe, provided that the carrier pipe or tubing covered herein
moplastic Pipe and Fittings
complies with applicable code requirements.
D2239 Specification for Polyethylene (PE) Plastic Pipe
1.2 Piping systems may include one or more carrier pipes
(SIDR-PR) Based on Controlled Inside Diameter
within a common outer jacket.
D3035 SpecificationforPolyethylene(PE)PlasticPipe(DR-
1.3 The text of this specification references notes and
PR) Based on Controlled Outside Diameter
footnotes that provide explanatory material. These notes and
F412 Terminology Relating to Plastic Piping Systems
footnotes (excluding those in tables and figures) shall not be
F714 Specification for Polyethylene (PE) Plastic Pipe (DR-
considered part of this standard.
PR) Based on Outside Diameter
NOTE 1—Pre-insulated pipes covered by this specification are typically
F876 SpecificationforCrosslinkedPolyethylene(PEX)Tub-
installed underground in buried applications.
ing
1.4 Units—The values stated in inch-pound units are to be
F1281 Specification for Crosslinked Polyethylene/
regarded as standard. The values given in parentheses are
Aluminum/Crosslinked Polyethylene (PEX-AL-PEX)
mathematical conversions to SI units that are provided for
Pressure Pipe
information only and are not considered standard.
F1282 Specification for Polyethylene/Aluminum/
Polyethylene (PE-AL-PE) Composite Pressure Pipe
1.5 The following safety hazards caveat pertains to the test
F2389 Specification for Pressure-rated Polypropylene (PP)
methods portion, Section 7, of this specification. This standard
Piping Systems
does not purport to address all of the safety concerns, if any,
F2769 Specification for Polyethylene of RaisedTemperature
associated with its use. It is the responsibility of the user of this
(PE-RT) Plastic Hot and Cold-Water Tubing and Distri-
standard to establish appropriate safety, health, and environ-
bution Systems
F2788 Specification for Metric and Inch-sized Crosslinked
This specification is under the jurisdiction ofASTM Committee F17 on Plastic
Piping Systems and is the direct responsibility of Subcommittee F17.11 on
Composite. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Jan. 1, 2019. Published January 2019. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 2002. Last previous edition approved in 2013 as F2165– 13. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/F2165-19. 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
F2165 − 19
Polyethylene (PEX) Pipe structure through processing whereby a majority of the poly-
F3123 Specification for Metric Outside Diameter Polyethyl- mer chains are chemically linked
ene (PE) Plastic Pipe (DR-PN)
3.2.5 end seal, n—a device that provides a seal between the
F3253 Specification for Crosslinked Polyethylene (PEX)
outer jacket and carrier pipe, providing a moisture barrier for
Tubing with Oxygen Barrier for Hot- and Cold-Water
the insulation.
Hydronic Distribution Systems
3.2.6 flexible pre-insulated pipe system, n—a factory manu-
2.2 NSF Standards:
facturedpre-insulatedpipesystemconsistingofcarrierpipe(s),
NSF/ANSI 14 Plastics and Plumbing System Components
thermal insulating material, and protective jacket.This product
NSF/ANSI61 DrinkingWaterSystemComponents—Health
is supplied in coils.
Effects
3.2.7 jacket, n—the outer covering of the flexible pre-
2.3 DIN Standards:
insulated pipe system. The jacket provides mechanical and
DIN 8074 Polyethylene (PE) Pipes, PE 63, PE 80, PE-100,
moisture protection for the insulation.
PE-HD—General Quality Requirements and Testing
3.2.8 non-bonded insulation system, n—a product that is the
DIN 8075 Polyethylene (PE) Pipes, PE 63, PE 80, PE-100,
result of applying thermal insulation to a carrier pipe without
PE-HD—Dimensions
bonding the insulation to the carrier pipe, allowing the carrier
DIN 8077 Polypropylene (PP) pipes- PP-H, PP-B, PP-R,
pipe to move freely within the insulation.
PP-RCT -Dimensions
DIN 8078 Polypropylene (PP) pipes- PP-H, PP-B, PP-R,
3.2.9 pipe joint, n—a connection between two sections of
PP-RCT - General quality requirements and testing
piping material. The pipe joint shall include the connection of
DIN 16892 Crosslinked Polyethylene Pipes—General Qual-
the carrier pipe, insulation of the bare section carrier pipe, and
ity Requirements and Testing
protective outer jacket.
DIN 16893 Crosslinked Polyethylene Pipes—Dimensions
3.2.10 thermal insulation, n—a general term used to de-
2.4 ISO Standard
scribe any material that reduces heat transfer.
ISO 15875 Plastic Piping Systems for Hot and Cold Water-
3.2.11 ultraviolet (UV) stability, n—the resistance to ultra-
Installations-Crosslinked Polyethlene (PE-X)
violet degradation of the jacket material.
ISO 22391-2 Plastic Piping Systems for Hot and ColdWater
Installations -- Polyethylene of Raised Temperature Re-
4. Significance and Use
sistance (PE-RT)
4.1 Thisspecificationestablishesmaterialsandperformance
3. Terminology
requirements for flexible, pre-insulated plastic piping intended
for hot and chilled fluid applications.
3.1 Definitions are in accordance with Terminology F412
for plastic piping systems and C168 for thermal insulating
5. Materials
materials; abbreviations are in accordance with Terminology
D1600 unless otherwise indicated.
5.1 Carrier Pipe(s):
5.1.1 PEX carrier pipe shall conform to one or more of the
3.2 Definitions of Terms Specific to This Standard:
following: Specifications F876, F2788, F3253; DIN 16892 and
3.2.1 bonded insulation system, n—a product that is the
DIN 16893; ISO 15875.
result of applying thermal insulation to a carrier pipe where a
5.1.2 PE carrier pipe shall conform to one or more of the
bond forms between the insulation and the carrier pipe that
following: Specifications D2239, D3035, F714, F3123; DIN
exceeds the modulus of elasticity of the carrier pipe.
8075 and DIN 8074.
3.2.2 carrier pipe, n—thepipe(s)thatareusedtoconveythe
5.1.3 Composite carrier pipe shall conform to one or more
medium.
of the following: Specifications F1281 or F1282.
3.2.3 compression fittings, n—types of fittings for pipe or
5.1.4 PP carrier pipe shall conform to one or more of the
tubing, such as insert-type fittings that utilize a reinforcing
following: Specification F2389; DIN 8077 or DIN 8078.
insert which is inserted into the pipe or tubing and a ring or
5.1.5 PE-RTcarrierpipeshallconformtooneormoreofthe
clamp that compresses the pipe or tubing over the insert, and
following: Specification F2769; ISO 22391-2.
cold-expansionfittingsthatrequiretheexpansionofthepipeor
5.1.6 Other piping mat
...

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: F2165 − 13 F2165 − 19 An American National Standard
Standard Specification for
Flexible Pre-Insulated Plastic Piping
This standard is issued under the fixed designation F2165; 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.
INTRODUCTION
This specification covers materials and test methods for flexible, pre-insulated piping with
non-bonded insulation. For the purpose of this standard, flexible pre-insulated piping system shall
refer to a piping system that is supplied complete with carrier pipe, thermal insulation, and outer jacket
manufactured as an integrated system, and is supplied in a coil. This specification covers the
requirements, material specifications, and test methods of piping systems intended to convey hot and
cold fluids. Piping systems may include one or more carrier pipes within a common outer jacket.
1. Scope*
1.1 This specification covers flexible, pre-insulated plastic piping systems commonly used to convey hot and cold fluids.fluids,
including piping systems that are supplied complete with plastic carrier pipe, thermal insulation, and outer jacket manufactured
as an integrated system, and are supplied in a coil or as a straight length. Both bonded and non-bonded insulation types are
included. Included are requirements and test methods for material, workmanship, dimensions, and endseal testing. Requirements
for markings are also given. The components covered by this specification are intended for use in, but not limited to, residential
and commercial, hot- and cold-potable water distribution systems, reclaimed water, fire protection, municipal water service lines,
radiant heating and cooling systems, hydronic distribution systems, snow and ice melting systems, geothermal ground loops,
district heating, turf conditioning, compressed air distribution and building services pipe, provided that the carrier pipe or tubing
covered herein complies with applicable code requirements.
1.2 This specification establishes materials and performance requirements for flexible, pre-insulated piping intended for hot and
chilled water applications.
1.2 Piping systems may include one or more carrier pipes within a common outer jacket.
1.3 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered part of this standard.
NOTE 1—Pre-insulated pipes covered by this specification are typically installed underground in buried applications.
1.4 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.
1.5 The following safety hazards caveat pertains to the test methods portion, Section 7, 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 safety, health, and healthenvironmental practices and determine the applicability of regulatory
requirementslimitations 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.
2. Referenced Documents
2.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
This specification is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.11 on Composite.
Current edition approved Nov. 1, 2013Jan. 1, 2019. Published December 2013.January 2019. Originally approved in 2002. Last previous edition approved in 20082013
as F2165– 02(2008).13. DOI: 10.1520/F2165-13.10.1520/F2165-19.
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
F2165 − 19
C177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the
Guarded-Hot-Plate Apparatus
D1600 Terminology for Abbreviated Terms Relating to Plastics
D2104D2122 Specification for Polyethylene (PE) Plastic Pipe, Schedule 40Test Method for Determining Dimensions of
Thermoplastic Pipe and Fittings (Withdrawn 2010)
D2239 Specification for Polyethylene (PE) Plastic Pipe (SIDR-PR) Based on Controlled Inside Diameter
D3035 Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Controlled Outside Diameter
F412 Terminology Relating to Plastic Piping Systems
F714 Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Outside Diameter
F876 Specification for Crosslinked Polyethylene (PEX) Tubing
F877 Specification for Crosslinked Polyethylene (PEX) Hot- and Cold-Water Distribution Systems
F1281 Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX) Pressure Pipe
F1282 Specification for Polyethylene/Aluminum/Polyethylene (PE-AL-PE) Composite Pressure Pipe
F2389 Specification for Pressure-rated Polypropylene (PP) Piping Systems
F2769 Specification for Polyethylene of Raised Temperature (PE-RT) Plastic Hot and Cold-Water Tubing and Distribution
Systems
F2788 Specification for Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe
F3123 Specification for Metric Outside Diameter Polyethylene (PE) Plastic Pipe (DR-PN)
F3253 Specification for Crosslinked Polyethylene (PEX) Tubing with Oxygen Barrier for Hot- and Cold-Water Hydronic
Distribution Systems
2.2 NSF Standards:
NSF/ANSI 14 Plastics and Plumbing System Components
NSF/ANSI 61 Drinking Water System Components—Health Effects
2.3 DIN Standards:
DIN 8074 Polyethylene (PE) Pipes, PE 63, PE 80, PE-100, PE-HD—General Quality Requirements and Testing
DIN 8075 Polyethylene (PE) Pipes, PE 63, PE 80, PE-100, PE-HD—Dimensions
DIN 8077 Polypropylene (PP) pipes- PP-H, PP-B, PP-R, PP-RCT -Dimensions
DIN 8078 Polypropylene (PP) pipes- PP-H, PP-B, PP-R, PP-RCT - General quality requirements and testing
DIN 16892 Crosslinked Polyethylene Pipes—General Quality Requirements and Testing
DIN 16893 Crosslinked Polyethylene Pipes—Dimensions
2.4 ISO Standard
ISO 15875 Plastic Piping Systems for Hot and Cold Water-Installations-Crosslinked Polyethlene (PE-X)
ISO 22391-2 Plastic Piping Systems for Hot and Cold Water Installations -- Polyethylene of Raised Temperature Resistance
(PE-RT)
3. Terminology
3.1 Definitions are in accordance with Terminology F412 for plastic piping systems and C168 for thermal insulating materials;
abbreviations are in accordance with Terminology D1600 unless otherwise indicated.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 bonded insulation system, n—a product that is the result of applying thermal insulation to a carrier pipe where a bond
forms between the insulation and the carrier pipe that exceeds the modulus of elasticity of the carrier pipe.
3.2.2 carrier pipe, n—the pipe(s) that are used to convey the medium.
3.2.3 compression fittings, n—types of fittings for pipe or tubing, such as insert-type fittings that utilize a reinforcing insert
which is inserted into the pipe or tubing and a ring or clamp that compresses the pipe or tubing over the insert, and cold-expansion
fittings that require the expansion of the pipe or tubing prior to insertion of the reinforcing insert that is inserted into the pipe or
tubing and a ring or clamp which compresses the pipe or tubing over the insert.
3.2.4 crosslinked polyethylene (PEX) plastic, n—a polyethylene material which has undergone a change in molecular structure
using a chemical or a physical process whereby through processing whereby a majority of the polymer chains are chemically
linked.linked
3.2.5 end seal, n—a device that provides a seal between the outer jacket and carrier pipe, providing a moisture barrier for the
insulation.
3.2.6 flexible pre-insulated pipe system, n—a factory manufactured pre-insulated pipe system consisting of carrier pipe(s),
thermal insulating material, and protective jacket. This product is supplied in coils.
Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., Ann Arbor, MI 48113-0140, http://www.nsf.org.
Available from Beuth Verlag GmbH (DIN-- DIN Deutsches Institut fur Normung e.V.), Burggrafenstrasse 6, 10787, Berlin, Germany, http://www.en.din.de.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
F2165 − 19
3.2.7 jacket, n—the outer covering of the flexible pre-insulated pipe system. The jacket provides mechanical and moisture
protection for the insulation.
3.2.8 non-bonded insulation system, n—a product that is the result of applying thermal insulation to a carrier pipe without
bonding the insulation to the carrier pipe, allowing the carrier pipe to move freely within the insulation.
3.2.9 pipe joint, n—a connection between two sections of piping material. The pipe joint shall include the connection of the
carrier pipe, insulation of the bare section carrier pipe, and protective outer jacket.
3.2.10 thermal insulation, n—a general term used to describe any material that reduces heat transfer.
3.2.11 ultraviolet (UV) stability, n—the resistance to ultraviolet degradation of the jacket material.
4. Significance and Use
4.1 This specification establishes materials and performance requirements for flexible, pre-insulated plastic piping intended for
hot and chilled waterfluid applications.
4.2 The bending force test ensures that the installer will obtain materials that will be suitable for installation as flexible piping.
5. Materials
5.1 Carrier Pipe(s):
5.1.1 PEX carrier pipe shall conform to one or more of the following: Specifications F876, F877F2788, F3253; DIN 16892
orand DIN 16893; ISO 15875.
5.1.2 PE carrier pipe shall conform to one or more of the following: Specifications D2104, D2239, D3035, F714, F3123; DIN
8075 orand DIN 8074.
5.1.3 Composite carrier pipe shall confirm to conform to one or more of the following: Specifications F1281 or F1282.
5.1.4 PP carrier pipe shall conform to one or more of the following: Specification F2389; DIN 8077 or DIN 8078.
5.1.5 PE-RT carrier pipe shall conform to one or more of the following: Specification F2769; ISO 22391-2.
5.1.6 Other piping materials as specified by customer specifications.
5.2 Thermal Insulation:
5.2.1 Insulation shall have a maximum thermal conductivity of 0.30 BTU·in./h·ft ·°F (0.04 W/(m·K) when measured in
accordance with Test Method C177.
5.2.2 All seams of the non-bonded insulation sheets shall be sealed.permanently joined.
5.2.3 Insulation Non-bonded insulation shall be visually inspected for voids and other defects prior to the application of the
jacket. Any voids or variance in thickness greater than 0.1 in. shall be reason for rejection. Manufacturer shall repair or replace
defective insulation before product is shipped to the customer. Channels for heat trace, control wiring, or orientation markings are
excluded from this requirement.
5.2.4 Insulation shall not be bonded to the carrier pipe.
5.3 Outer Jacket:
5.3.1 The outer jacket shall be constructed of a watertight, corrugatedwatertight polyethylene material.
5.3.2 The outer jacket shall contain
...