ASTM F1802-04
(Test Method)Standard Test Method for Performance Testing of Excess Flow Valves
Standard Test Method for Performance Testing of Excess Flow Valves
SIGNIFICANCE AND USE
This test method is intended to be used for the evaluation of EFVs manufactured for use on residential and small commercial thermoplastic natural gas service lines. Possible applications of the test include product design and quality control testing by a manufacturer and product acceptance testing by a natural gas utility.
The user of this test method should be aware that the flows and pressures measured in the test apparatus may not correlate well with those measured in a field installation. Therefore, the user should conduct sufficient tests to ensure that any specific EFV will carry out its intended function in the actual field installation used.
SCOPE
1.1 This test method covers a standardized method to determine the performance of excess flow valves (EFVs) designed to limit flow or stop flow in thermoplastic natural gas service lines.
1.2 All tests are intended to be performed using air as the test fluid. Unless otherwise stated, all flow rates are reported in standard cubic feet per hour of 0.6 relative density natural gas.
1.3 The test method recognizes two types of EFV. One type, an excess flow valve-bypass (EFVB), allows a small amount of gas to bleed through (bypass) after it has tripped, usually as a means of automatically resetting the device. The second type, an excess flow valve-non bypass (EFVNB), is intended to trip shut forming an essentially gas tight seal.
1.4 The performance characteristics covered in this test method include flow at trip point, pressure drop across the EFV, bypass flow rate of the EFVB or leak rate through the EFVNB after trip, and verification that the EFV can be reset.
1.4.1 Gas distribution systems may contain condensates and particulates such as organic matter, sand, dirt, and iron compounds. Field experience has shown that the operating characteristics of some EFVs may be affected by accumulations of these materials. The tests of Section were developed to provide a simple, inexpensive, reproducible test that quantifies the effect, if any, of a uniform coating of kerosene and of kerosene contaminated with a specified amount of ferric oxide powder on an EFV's operating characteristics.
1.5 Excess flow valves covered by this test method will normally have the following characteristics: a pressure rating of up to 125 psig (0.86 MPa); a trip flow of between 200 and 2500 ft3/h (5.66 and 70.8 m3/h) at 10 psig (0.07 MPa); a minimum temperature rating of 0F(-18C), and a maximum temperature rating of 100F (38C).
1.6 The EFVs covered by this test method shall be constructed to fit piping systems no smaller than 1/2CTS and no larger than 11/4IPS, including both pipe and tubing sizes.
1.7 Tests will be performed at 67 10F (19.4 5.5C). Alternative optional test temperatures are 100 10F (37.7 5.5C) and 0 10F (-18 5.5C). All flow rates must be corrected to standard conditions.
1.8 This test method was written for EFVs installed in thermoplastic piping systems. However, it is expected that the test method may also be used for similar devices in other piping systems.
1.9 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific precautions, see Section .
General Information
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Standards Content (Sample)
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An American National Standard
Designation:F1802–04
Standard Test Method for
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Performance Testing of Excess Flow Valves
This standard is issued under the fixed designation F1802; 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 1.6 The EFVs covered by this test method shall be con-
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structed to fit piping systems no smaller than ⁄2 CTS and no
1.1 This test method covers a standardized method to
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larger than 1 ⁄4 IPS, including both pipe and tubing sizes.
determine the performance of excess flow valves (EFVs)
1.7 Tests will be performed at 67 6 10°F (19.4 6 5.5°C).
designed to limit flow or stop flow in thermoplastic natural gas
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Alternative optional test temperatures are 100 6 10°F (37.7 6
service lines.
5.5°C) and 0 6 10°F (–18 6 5.5°C). All flow rates must be
1.2 All tests are intended to be performed using air as the
corrected to standard conditions.
test fluid. Unless otherwise stated, all flow rates are reported in
1.8 This test method was written for EFVs installed in
standard cubic feet per hour of 0.6 relative density natural gas.
thermoplastic piping systems. However, it is expected that the
1.3 The test method recognizes two types of EFV. One type,
test method may also be used for similar devices in other
anexcessflowvalve-bypass(EFVB),allowsasmallamountof
piping systems.
gas to bleed through (bypass) after it has tripped, usually as a
1.9 This standard does not purport to address all of the
means of automatically resetting the device. The second type,
safety concerns, if any, associated with its use. It is the
an excess flow valve-non bypass (EFVNB), is intended to trip
responsibility of the user of this standard to establish appro-
shut forming an essentially gas tight seal.
priate safety and health practices and determine the applica-
1.4 The performance characteristics covered in this test
bility of regulatory limitations prior to use. For specific
method include flow at trip point, pressure drop across the
precautions, see Section 8.
EFV, bypass flow rate of the EFVB or leak rate through the
EFVNB after trip, and verification that the EFV can be reset.
2. Referenced Documents
1.4.1 Gas distribution systems may contain condensates and
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2.1 ASTM Standards:
particulates such as organic matter, sand, dirt, and iron com-
D1600 Terminology for Abbreviated Terms Relating to
pounds. Field experience has shown that the operating charac-
Plastics
teristics of some EFVs may be affected by accumulations of
F412 Terminology Relating to Plastic Piping Systems
these materials. The tests of Section 11 were developed to
2.2 ANSI Standard:
provide a simple, inexpensive, reproducible test that quantifies
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B31.8 Gas Transmission and Distribution Piping Systems
the effect, if any, of a uniform coating of kerosene and of
2.3 Federal Specification:
kerosene contaminated with a specified amount of ferric oxide
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DOT Part 192 Title 49 Code of Federal Regulations
powder on an EFV’s operating characteristics.
1.5 Excess flow valves covered by this test method will
3. Terminology
normally have the following characteristics: a pressure rating
3.1 Definitions:
of up to 125 psig (0.86 MPa); a trip flow of between 200 and
3 3 3.1.1 General—Definitions are in accordance with Termi-
2500 ft /h (5.66 and 70.8 m /h) at 10 psig (0.07 MPa); a
nology F412, unless otherwise specified. Abbreviations are in
minimum temperature rating of 0°F(–18°C), and a maximum
accordance with Terminology D1600.
temperature rating of 100°F (38°C).
3.1.2 The gas industry terminology used in this test method
is in accordance with ANSI B31.8 or DOT Part 192 Title 49,
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This test method is under the jurisdiction of ASTM Committee F17 on Plastic
unless otherwise indicated.
Piping Systems and is the direct responsibility of Subcommittee F17.40 on Test
3.2 Definitions of Terms Specific to This Standard:
Methods.
Current edition approved April 1, 2004. Published April 2004. Originally
approved in 1995 as PS 13–95. Last previous edition approved 1997 as F1802–97.
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DOI: 10.1520/F1802-04. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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This contamination test procedure may be utilized to determine the effect, if contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
any, of contaminants from a specific gas distribution system on the operational Standards volume information, refer to the standard’s Document Summary page on
characteristics of an EFV under consideration for use in that system. Condensates, the ASTM website.
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oils and particulates removed from that distribution system could be substituted for Available
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