ASTM F1025-19
(Guide)Standard Guide for Selection and Use of Full-Encirclement-Type Band Clamps for Reinforcement or Repair of Punctures or Holes in Polyethylene Gas Pressure Pipe
Standard Guide for Selection and Use of Full-Encirclement-Type Band Clamps for Reinforcement or Repair of Punctures or Holes in Polyethylene Gas Pressure Pipe
SIGNIFICANCE AND USE
4.1 Full-encirclement-type band clamps are recommended for repairs only where the pipe is able to maintain its structural integrity. These clamps are not recommended for permanent repair of pipe where the damage could propagate outside the clamp under anticipated field conditions (see 5.1.1 for repair limitations). In such situations, it is recommended to cut out and replace the damaged pipe with a new piece. Clamps that are used for repair should comply with the manufacturer’s specifications for use and the manufacturer’s installation instructions should be followed.
4.2 These clamps may be used to cover holes left in the pipe from abandoned service line connections, purge points, and accidental punctures.
4.3 These clamps may be used to reinforce the pipe where the wall thickness has been reduced because of gouges or other irregularities.
4.4 Some users reinforce polyethylene pipe after it has been squeezed-off as a precaution against pipe damage that may have occurred during the squeeze-off process and as a means of ensuring that the pipe will not be squeezed-off again at the same location. Consult with the polyethylene pipe manufacturer as to the appropriateness of squeeze-off for their product, and for circumstances when reinforcement is recommended. See Guide F1041.
SCOPE
1.1 This guide specifically addresses the design and installation of full-encirclement-type band clamps for repair of gouges, punctures, or holes, and for reinforcement of polyethylene plastic pipe. Guidelines are provided for selecting and using clamps in pipe sizes 2 in. nominal (60 mm) and larger.
1.1.1 A test method is also provided for the user to assess the applicability of the repair clamp. Under appropriate circumstances, this type of clamp offers a convenient, effective, and safe means of restoring the integrity of an in-service pipeline, without cutting out a section of pipe (see Note 1). The pipe to be repaired cannot be backed by a stiffener for internal support and cross-sectional dimensional control. Satisfactory use of this type of clamp should rely on the crush resistance of the pipe itself and a fitting design concept, which retains the cross-sectional pipe configuration while minimizing compressive forces required to obtain an effective leakage seal.
Note 1: The appropriateness for use of this type of clamp should be determined by using the information contained in this guide and from consultation with, and recommendations of, both the pipe and clamp manufacturers. The basic premise for use of this type of clamp is that it is recommended by the manufacturer for this specific application and that step-by-step installation instructions are available for that application. It is important in the development of this type of clamp that prototype testing be conducted to evaluate performance expectations because of the physical limitations encountered when designing it for use with plastic pipe.
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.
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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: F1025 − 19 An American National Standard
Standard Guide for
Selection and Use of Full-Encirclement-Type Band Clamps
for Reinforcement or Repair of Punctures or Holes in
1
Polyethylene Gas Pressure Pipe
This standard is issued under the fixed designation F1025; 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 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 This guide specifically addresses the design and instal-
ization established in the Decision on Principles for the
lation of full-encirclement-type band clamps for repair of
Development of International Standards, Guides and Recom-
gouges, punctures, or holes, and for reinforcement of polyeth-
mendations issued by the World Trade Organization Technical
ylene plastic pipe. Guidelines are provided for selecting and
Barriers to Trade (TBT) Committee.
using clamps in pipe sizes 2 in. nominal (60 mm) and larger.
1.1.1 A test method is also provided for the user to assess
2. Referenced Documents
the applicability of the repair clamp. Under appropriate
2
2.1 ASTM Standards:
circumstances,thistypeofclampoffersaconvenient,effective,
F1041 Guide for Squeeze-Off of Polyolefin Gas Pressure
and safe means of restoring the integrity of an in-service
Pipe and Tubing
pipeline, without cutting out a section of pipe (see Note 1).The
pipe to be repaired cannot be backed by a stiffener for internal
3. Terminology
support and cross-sectional dimensional control. Satisfactory
3.1 Definitions of Terms Specific to This Standard:
use of this type of clamp should rely on the crush resistance of
3.1.1 creep—the time-dependent part of strain resulting
the pipe itself and a fitting design concept, which retains the
from stress, that is, dimensional change caused by the appli-
cross-sectional pipe configuration while minimizing compres-
cation of load over and above the elastic deformation and with
sive forces required to obtain an effective leakage seal.
respect to time.
NOTE 1—The appropriateness for use of this type of clamp should be
determined by using the information contained in this guide and from
4. Significance and Use
consultation with, and recommendations of, both the pipe and clamp
manufacturers. The basic premise for use of this type of clamp is that it is 4.1 Full-encirclement-type band clamps are recommended
recommended by the manufacturer for this specific application and that
for repairs only where the pipe is able to maintain its structural
step-by-step installation instructions are available for that application. It is
integrity. These clamps are not recommended for permanent
important in the development of this type of clamp that prototype testing
repair of pipe where the damage could propagate outside the
be conducted to evaluate performance expectations because of the
clamp under anticipated field conditions (see 5.1.1 for repair
physical limitations encountered when designing it for use with plastic
pipe. limitations). In such situations, it is recommended to cut out
and replace the damaged pipe with a new piece. Clamps that
1.2 The values stated in inch-pound units are to be regarded
are used for repair should comply with the manufacturer’s
as standard. The values given in parentheses are mathematical
specifications for use and the manufacturer’s installation in-
conversions to SI units that are provided for information only
structions should be followed.
and are not considered standard.
4.2 These clamps may be used to cover holes left in the pipe
1.3 This standard does not purport to address all of the
from abandoned service line connections, purge points, and
safety concerns, if any, associated with its use. It is the
accidental punctures.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4.3 These clamps may be used to reinforce the pipe where
mine the applicability of regulatory limitations prior to use.
the wall thickness has been reduced because of gouges or other
irregularities.
1
This guide is under the jurisdiction ofASTM Committee F17 on Plastic Piping
2
Systems and is the direct responsibility of Subcommittee F17.60 on Gas. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Aug. 1, 2019. Published August 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual B
...
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: F1025 − 94 (Reapproved 2011) F1025 − 19 An American National Standard
Standard Guide for
Selection and Use of Full-Encirclement-Type Band Clamps
for Reinforcement or Repair of Punctures or Holes in
1
Polyethylene Gas Pressure Pipe
This standard is issued under the fixed designation F1025; 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 guide specifically addresses the design and installation of full-encirclement-type band clamps for repair of gouges,
punctures, or holes, and for reinforcement of polyethylene plastic pipe. Guidelines are provided for selecting and using clamps in
pipe sizes 2 in. nominal (60 mm) and larger.
1.1.1 A test method is also provided for the user to assess the applicability of the repair clamp. Under appropriate circumstances,
this type of clamp offers a convenient, effective, and safe means of restoring the integrity of an in-service pipeline, without cutting
out a section of pipe (see Note 1). The pipe to be repaired cannot be backed by a stiffener for internal support and cross-sectional
dimensional control. Satisfactory use of this type of clamp mustshould rely on the crush resistance of the pipe itself and a fitting
design concept, which retains the cross-sectional pipe configuration while minimizing compressive forces required to obtain an
effective leakage seal.
NOTE 1—The appropriateness for use of this type of clamp should be determined by using the information contained in this guide and from consultation
with, and recommendations of, both the pipe and clamp manufacturers. The basic premise for use of this type of clamp is that it is recommended by the
manufacturer for this specific application and that step-by-step installation instructions are available for that application. It is important in the development
of this type of clamp that prototype testing be conducted to evaluate performance expectations because of the physical limitations encountered when
designing it for use with plastic pipe.
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 safety, health, and healthenvironmental 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.
2. Referenced Documents
2
2.1 ASTM Standards:
F1041 Guide for Squeeze-Off of Polyolefin Gas Pressure Pipe and Tubing
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 creep—the time-dependent part of strain resulting from stress, that is, dimensional change caused by the application of
load over and above the elastic deformation and with respect to time.
4. Significance and Use
4.1 Full-encirclement-type band clamps are recommended for repairs only where the pipe is able to maintain its structural
integrity. These clamps are not recommended for permanent repair of pipe where the damage could propagate outside the clamp
1
This guide is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.
Current edition approved Aug. 1, 2011Aug. 1, 2019. Published August 2011August 2019. Originally approved in 1986. Last previous edition approved in 20062011 as
F1025 – 94 (2006). (2011). DOI: 10.1520/F1025-94R11.10.1520/F1025-19.
2
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 the ASTM website.
*A Summary of Changes section appears at the end of this standard
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