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CSA 3.16:21 Lever operated non-lubricated plug type gas shut-off valves
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CSA 3.16:21
February 2021
Title: Lever operated non-lubricated plug type gas shut-off valves
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CSA 3.16:21
Interprovincial Gas Advisory Council
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ICS 23.060
ISBN 978-1-4883-3431-3
© 2021 Canadian Standards Association
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CSA 3.16:21 Lever operated non-lubricated plug type gas shut-off valves
Interprovincial/Territorial Gas Advisory Council 3
Technical Committee on Gas Appliances and Related Accessories 5 ANSI/CSA Joint Subcommittee on Standards on Manual Valves 7 Preface 10
1 Scope 12
2 | Reference publications | 13 |
3 | Definitions 13 | |
4 | Construction 14 | |
4.1 | General construction | 14 |
4.2 | Materials 15 | |
4.3 | Marking 16 |
4.4 Preparation for shipment 16
Performance 17
General 17
Valve qualification 17
Testing sequence 17
Testing parameters 17
Leakage 17
External leakage (shell) 17
Seat leakage 18
Continued operation 18
Temperature resistance 18
Flow capacity 19
General 19
Method of test 20
Strength 22
Pressure test 22
Bending test 23
Operating torque 24
Valve stop mechanism strength test 24
Classification of marking material 24
Marking material adhesion and legibility 25
General 25
Method of test 25
Additional provisions for –40 °C (–40 °F) service 26
Additional provisions for –60 °C (–76 °F) service 27
February 2021 © 2021 Canadian Standards Association 1
CSA 3.16:21 Lever operated non-lubricated plug type gas shut-off valves
Additional provisions for 120 °C (248 °F) service 28
Additional provisions for 180 °C (356 °F) service 29
Manufacturing and production tests 29
General 29
Qualifying purchased components 30
Schedule of tests 30
Test requirements 30
Test descriptions 30
February 2021 © 2021 Canadian Standards Association 2
CSA 3.16:21 Lever operated non-lubricated plug type gas shut-off valves
This is the fourth edition of CSA 3.16, Lever operated non-lubricated plug type gas shut-off valves. It supersedes the previous editions published in 2015, 1988, and 1985.
The major changes to this edition include the following:
an alternative manufacturing production test has been added; and
updated formatting throughout the Standard.
This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.
This Standard was prepared by the ANSI/CSA Joint Subcommittee on Standards on Manual Valves, under the jurisdiction of the Technical Committee on Gas Appliances and Related Accessories and Related Accessories and the Strategic Steering Committee on Standards for Gas Appliances and Related Accessories, and had been formally approved by the CSA Technical Committee and the Interprovincial/ Territorial Gas Advisory Council.
This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.
Interpretations: The Strategic Steering Committee on Standards for Standards for Gas Appliances and Related Accessories has provided the following direction for the interpretation of standards under its jurisdiction: “The literal text shall be used in judging compliance of products with the safety requirements of this Standard. When the literal text cannot be applied to the product, such as for new materials or construction, and when a relevant committee interpretation has not already been published, CSA Group’s procedures for interpretation shall be followed to determine the intended safety principle.”
Notes:
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Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.
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February 2021 © 2021 Canadian Standards Association 10
CSA 3.16:21 Lever operated non-lubricated plug type gas shut-off valves
This Standard is subject to review within five years from the date of publication. Suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquiries@csagroup.org and include “Proposal for change” in the subject line:
Standard designation (number);
relevant clause, table, and/or figure number;
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rationale for the change.
February 2021 © 2021 Canadian Standards Association 11
CSA 3.16:21 Lever operated non-lubricated plug type gas shut-off valves
CSA 3.16:21
1 Scope
1.1
This Standard applies to manual lever operated, gas shut-off valves sizes NPS 1/4 to 8 of metallic construction with weld and flanged and threaded ends other than pressure lubricated designs for use with natural gas, manufactured gas, and liquefied petroleum gases.
Notes:
Valves covered by this Standard may be used on “digester gas” (methane produced during sewage treatment) but because of entrained contaminants their use is subject to agreement between the manufacturer and the purchaser.
Valves covered by this Standard may not be used on “sour gas” (gas with entrained hydrogen sulphide) without modification(s). Manufacturers should be consulted for their recommendation.
1.2
All valves covered by this Standard will be limited as to the service temperature and/or special provisions in accordance with the following designations and descriptions in Clauses 5 to 9.
a) Clause 5: –30 to 65 °C (–22 to 149 °F);
b) Clause 6: –40 to 65 °C (–40 to 149 °F);
c) Clause 7: –60 to 65 °C (–76 to 149 °F);
d) Clause 8: –30 to 120 °C (–22 to 248 °F); and
e) Clause 9: –30 to 180 °C (–22 to 356 °F).
1.3
This Standard applies to manual lever operated gas shut-off valves having maximum operating pressure over a range of 0 to 860 kPa (125 psig) and able to withstand field pressure testing to a maximum permissible pressure of 1290 kPa (187 psig).
1.4
All references to psi (kPa) throughout this Standard are considered as gauge pressure unless otherwise specified.
1.5
In this Standard, “shall” is used to express a requirement, i.e., a provision that the user shall satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
February 2021 © 2021 Canadian Standards Association 12