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ASTM F2138-01e1

(Specification)

Standard Specification for Excess Flow Valves for Natural Gas Service

Standard Specification for Excess Flow Valves for Natural Gas Service

ABSTRACT
This specification covers requirements and test methods for excess flow valves for natural gas piping systems. Tests methods requirements shall determine the performance characteristics of an excess flow valve installed in a straight piece of pipe. Excess flow valves shall conform to specified materials, dimensions, maximum inlet pressure, temperature rating range, and design requirements. It shall be tested with the following performance requirements: trip flow, leak rate, bypass flow, pressure drop, reset parameters, snap acting loads, and cycle testing.
SCOPE
1.1 This specification covers requirements and test methods for excess flow valves for use in thermoplastic natural gas piping systems. However, it is expected that excess flow valves manufactured to the requirements of this specification may also be used in other natural gas piping systems.
1.2 Excess flow valves covered by this specification are designed for insertion into components for natural gas systems such as pipe, tubing, or fittings in sizes from 1/2 CTS to 2 IPS.
1.3 The tests required by this specification are intended to determine the performance characteristics of an excess flow valve installed in a straight piece of pipe. An excess flow valve could possibly be installed in a straight piece of pipe, in a service tee outlet, as part of a mechanical coupling, or in other configurations. The performance characteristics of the excess flow valve may be significantly different for each installed configuration. Users should conduct their own tests to determine the installed performance characteristics or contact the EFV manufacturer for test data for the installed configuration. Additional guidance on selection and installation of excess flow valves is included in Appendix X1.
1.4 The tests required by this specification are not intended to be routine quality control tests.
1.5 The values given in parentheses are for informational purposes only.
1.6 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 requirements prior to use.

General Information

Status
Historical
Publication Date
09-Sep-2001
ICS
75.200 - Petroleum products and natural gas handling equipment
Technical Committee
F17 - Plastic Piping Systems
Drafting Committee
F17.60 - Gas
Current Stage
Ref Project

Relations

Replaces
ASTM F2138-01 - Standard Specification for Excess Flow Valves for Natural Gas Service
Effective Date
10-Sep-2001
Replaced By
ASTM F2138-09 - Standard Specification for Excess Flow Valves for Natural Gas Service
Effective Date
01-Mar-2009
Referred By
ASTM F2945-18 - Standard Specification for Polyamide 11 Gas Pressure Pipe, Tubing, and Fittings
Effective Date
10-Sep-2001
Referred By
ASTM D2513-20 - Standard Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing, and Fittings
Effective Date
10-Sep-2001
Referred By
ASTM F2785-21 - Standard Specification for Polyamide 12 Gas Pressure Pipe, Tubing, and Fittings
Effective Date
10-Sep-2001

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ASTM F2138-01e1 - Standard Specification for Excess Flow Valves for Natural Gas ServiceASTM F2138-01e1 - Standard Specification for Excess Flow Valves for Natural Gas Service
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ASTM F2138-01e1 - Standard Specification for Excess Flow Valves for Natural Gas Service
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
e1
Designation: F 2138 – 01
Standard Specification for
1
Excess Flow Valves for Natural Gas Service
This standard is issued under the fixed designation F 2138; 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 (e) indicates an editorial change since the last revision or reapproval.
1
e NOTE—Section 15 was added editorially revised in December 2002.
3
1. Scope F 412 Terminology Relating to Plastic Piping Systems
F 1802 Test Method For Performance Testing of Excess
1.1 This specification covers requirements and test methods
3
Flow Valves
for excess flow valves for use in thermoplastic natural gas
piping systems. However, it is expected that excess flow valves
3. Terminology
manufacturedtotherequirementsofthisspecificationmayalso
3.1 Definitions of Terms:
be used in other natural gas piping systems.
3.1.1 DefinitionsareinaccordancewithTerminologyF 412,
1.2 Excess flow valves covered by this specification are
unless otherwise specified. Abbreviations are in accordance
designed for insertion into components for natural gas systems
with Terminology D 1600.
such as pipe, tubing, or fittings in sizes from 1/2 CTS to 2 IPS.
3.1.2 bypass flow, n—an intentional rate of passage of
1.3 The tests required by this specification are intended to
natural gas through an EFVB after trip, which will allow
determine the performance characteristics of an excess flow
upstream and downstream pressure to equalize across the
valve installed in a straight piece of pipe.An excess flow valve
device to automatically reset to the open position after removal
could possibly be installed in a straight piece of pipe, in a
of a fault condition.
service tee outlet, as part of a mechanical coupling, or in other
3.1.3 excess flow valve, EFV, n—a device installed in a
configurations. The performance characteristics of the excess
natural gas piping system to automatically stop or limit the
flow valve may be significantly different for each installed
passage of natural gas when the rate of passage of natural gas
configuration. Users should conduct their own tests to deter-
through the device exceeds a predetermined level.
mine the installed performance characteristics or contact the
3.1.4 excess flow valve bypass, EFVB, n—an EFV designed
EFV manufacturer for test data for the installed configuration.
to limit the flow of gas after trip to a small predetermined level
Additional guidance on selection and installation of excess
and to reset automatically after the pressure is equalized across
flow valves is included in Appendix X1.
the valve.
1.4 The tests required by this specification are not intended
3.1.5 excess flow valve non-bypass, EFVNB, n—an EFV
to be routine quality control tests.
designed to stop the flow of gas after trip and to be reset
1.5 The values given in parentheses are for informational
manually.
purposes only.
3.1.6 leak rate, n—the flow of natural gas through an
1.6 This standard does not purport to address all of the
EFVNB after trip.
safety concerns, if any, associated with its use. It is the
3.1.7 maximum inlet pressure, n—the maximum pressure,
responsibility of the user of this standard to establish appro-
as stated by the EFV manufacturer, at which an EFV is
priate safety and health practices and determine the applica-
designed to function.
bility of regulatory requirements prior to use.
3.1.8 minimum inlet pressure, n—the minimum pressure, as
2. Referenced Documents stated by the EFV manufacturer, at which an EFV is designed
to function.
2.1 ASTM Standards:
3.1.9 pipe, n—refers to both pipe and tubing.
D 1600 Terminology for Abbreviated Terms Relating to
2
3.1.10 reset, v—changing an EFV from a closed position to
Plastics
an open position.
3.1.11 temperature rating, n—the temperature range, as
stated by the EFV manufacturer, within which an EFV is
1
This specification is under the jurisdiction ofASTM Committee F17 on Plastic
designed to function.
Piping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.
Current edition approved Sept. 10, 2001. Published October 2001.
2 3
Annual Book of ASTM Standards, Vol 08.01. Annual Book of ASTM Standards, Vol 08.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
e1
F2138–01
3.1.12 trip, n—closure of an EFV. 9.1.4 Pressure Drop—The pressure drop across the EFV
3.1.13 trip flow, n—the rate of passage of natural gas shall not exceed the maximum pressure drop stated by the EFV
through an EFV that will cause the EFV to stop or limit the manufacturer at each flow rate listed in Test Method F 1802,
passage of na
...

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