ASTM F1947-21
(Practice)Standard Practice for Installation of Folded Poly (Vinyl Chloride) (PVC) Pipe into Existing Sewers and Conduits
Standard Practice for Installation of Folded Poly (Vinyl Chloride) (PVC) Pipe into Existing Sewers and Conduits
SIGNIFICANCE AND USE
4.1 This practice is for use by designers and specifiers, regulatory agencies, owners, and inspection organizations who are involved in the rehabilitation of non-pressure sewers and conduits.
SCOPE
1.1 This practice describes the procedures for the rehabilitation of sewer lines and conduits (4 to 15 in. diameter) by the insertion of a folded PVC pipe, which is heated, pressurized, and expanded against the interior surface of an existing pipe with either a mechanical rounding device or steam pressure. The finished PVC pipe will be continuous and conform to the existing conduit. This rehabilitation process can be used in a variety of non–pressure applications, such as: sanitary sewers, storm sewers, and process piping.
1.2 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 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.
1.4 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
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:F1947 −21
Standard Practice for
Installation of Folded Poly (Vinyl Chloride) (PVC) Pipe into
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Existing Sewers and Conduits
This standard is issued under the fixed designation F1947; 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 D1784 Classification System and Basis for Specification for
Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlo-
1.1 This practice describes the procedures for the rehabili-
rinated Poly(Vinyl Chloride) (CPVC) Compounds
tation of sewer lines and conduits (4 to 15 in. diameter) by the
D2122 Test Method for Determining Dimensions of Ther-
insertion of a folded PVC pipe, which is heated, pressurized,
moplastic Pipe and Fittings
and expanded against the interior surface of an existing pipe
F412 Terminology Relating to Plastic Piping Systems
with either a mechanical rounding device or steam pressure.
F1417 Practice for Installation Acceptance of Plastic Non-
The finished PVC pipe will be continuous and conform to the
pressure Sewer Lines Using Low-Pressure Air
existing conduit. This rehabilitation process can be used in a
F1504 Specification for Folded Poly(Vinyl Chloride) (PVC)
variety of non–pressure applications, such as: sanitary sewers,
Pipe for Existing Sewer and Conduit Rehabilitation
storm sewers, and process piping.
2.2 NASSCO Standard:
1.2 The values stated in inch-pound units are to be regarded
Recommended Specifications for Sewer Collection System
as standard. The values given in parentheses are mathematical 3
Rehabilitation
conversions to SI units that are provided for information only
and are not considered standard.
3. Terminology
1.3 This standard does not purport to address all of the
3.1 Definitions— Terminology used in this practice is in
safety concerns, if any, associated with its use. It is the
conformancewithTerminologyF412andabbreviationsusedin
responsibility of the user of this standard to establish appro-
this practice are in accordance with Terminology D1600,
priate safety, health, and environmental practices and deter-
unless otherwise indicated.
mine the applicability of regulatory limitations prior to use.
3.2 Definitions of Terms Specific to This Standard:
1.4 This international standard was developed in accor-
3.2.1 containment tube, n—an optional elastomeric material
dance with internationally recognized principles on standard-
placed between the folded pipe and the existing pipe to protect
ization established in the Decision on Principles for the
the folded pipe during insertion, for containment of steam
Development of International Standards, Guides and Recom-
during the installation process, and to provide a waterproof
mendations issued by the World Trade Organization Technical
barrieragainstinfiltration,inflow,andstandingwater.Thistube
Barriers to Trade (TBT) Committee.
remains within the pipe but provides no structural support.
2. Referenced Documents
3.2.2 dimples (dimpling), n—Whereasideconnectionmeets
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the existing pipe, there is not existing pipe support for the PVC
2.1 ASTM Standards:
D790 Test Methods for Flexural Properties of Unreinforced pipe during expansion causing a point of thermoplastic pipe
expansion slightly beyond the existing pipe wall. This forma-
and Reinforced Plastics and Electrical Insulating Materi-
als tion of an external departure from the formed pipe wall is
termed dimpling.
D1600 Terminology forAbbreviatedTerms Relating to Plas-
tics
3.2.3 folded pipe, n—PVC pipe that has been manufactured
in a folded shape for use in existing pipeline rehabilitation (see
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This practice is under the jurisdiction of ASTM Committee F17 on Plastic
Fig. 1).
Piping Systems and is the direct responsibility of Subcommittee F17.67 on
3.2.4 formed pipe, n—foldedpipethathasbeeninsertedinto
Trenchless Plastic Pipeline Technology.
Current edition approved March 1, 2021. Published March 2021 Last previous
an existing sewer or conduit and expanded with heat, pressure,
edition approved in 2010 as F1947 – 10 which was withdrawn February 2019 and
and, if applicable, a rounding device to conform to and take the
reinstated in March 2021. DOI: 10.1520/F1947-21.
shape of the existing pipe (see Fig. 1).
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
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