ASME A112.18.1-2018/CSA B125.1-18

Plumbing supply fittings

REVISED OCTOBER 2018

ASME A112.18.1-2018/CSA B125.1-18, Plumbing supply fittings

ASME A112.18.1-2018/CSA B125.1-18

July 2018

Title: Plumbing supply fittings

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ASME/CSA Standard

ASME A112.18.1-2018/CSA B125.1-18

Plumbing supply fittings

®A trademark of the Canadian Standards Association and CSA America Inc., operating as “CSA Group”

Published in July 2018 by CSA Group

A not-for-profit private sector organization

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Commitment for Amendments

This Standard is issued jointly by the American Society of Mechanical Engineers (ASME) and the Canadian Standards Association (Operating as “CSA Group”). Amendments to this Standard will be made only after processing according to the Standards writing procedures of both ASME and CSA Group.

Contents

ASME A112 Standards Committee on Plumbing Materials and Equipment 4

ASME A112.18.1 Project Team on Plumbing Fixture Fittings 8

CSA Technical Committee on Plumbing Fittings 11

CSA/ASME Harmonization Task Group on Plumbing Fittings 16

Preface 18

1. Scope 20

   
   

2. Reference publications 21

   
   

3. Definitions and abbreviations 24

   1. Definitions 24

   2. Abbreviations 28

      
      

4. Design requirements 29

   1. Supply fittings 29

      1. Rated pressure 29

      2. Rated temperatures 29

      3. Seating members 29

   2. Servicing 30

   3. Installation 30

   4. Threaded connections 30

   5. Connections other than threaded connections 31

   6. Accessible designs 31

   7. Backflow prevention 31

   8. Cover plates and escutcheons 32

   9. Toxicity and lead content 32

   10. Frost-proof faucets and hydrants 32

   11. Showerheads, body sprays, and hand-held showers 32

       1. General 32

       2. High-efficiency showerheads and hand-held showers 32

   12. Cross-flow 33

   13. Fittings incorporating electrical features 33

       1. General 33

       2. Testing 34

   14. Materials 34

   15. Automatic compensating valve temperature control 34

   16. Lawn faucets 34

   17. Flexible water connectors 34

   18. High-efficiency commercial pre-rinse spray valves 34

   19. Household hot water dispensers with storage electrical heating systems 34

       
       

5. Performance requirements and test procedures 35

   
   

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   © 2018 Canadian Standards Association

   1. General 35

      1. Preconditioning 35

      2. Installation for testing 35

      3. Test conditions 35

      4. Order of tests 35

   2. Coatings 35

      1. General 35

      2. Corrosion (all substrates and coatings) 35

      3. Adhesion 36

      4. Decorative organic coatings 37

   3. Pressure and temperature 38

      1. Static and dynamic seals 38

      2. Burst pressure 38

      3. Cross-flow check valves 39

      4. Hose assemblies 39

      5. Ball joints 39

      6. Diverters 40

      7. Aerators and other end point devices 40

      8. Low-pressure water dispensers 40

   4. Flow rate 41

      1. Supply fittings 41

      2. Test procedure 41

      3. Test procedure for high-efficiency commercial pre-rinse spray valves 42

   5. Operating requirements 42

   6. Life cycle 43

      1. Performance requirements 43

      2. Test procedures 44

      3. Fittings and other control devices 45

   7. Resistance to installation loading 48

      1. Bending strength 48

      2. Thread torque strength 48

   8. Resistance to use loading 49

      1. Operating controls 49

      2. Maintenance of installed position 49

      3. Swing spout strength 49

   9. Backflow prevention 50

      1. General 50

      2. Fittings with plain outlets 50

      3. Fittings with submersible outlets 51

   10. Lawn faucets 54

       1. Performance requirements 54

       2. Test procedure 54

   11. Alternative materials test 54

       1. Performance requirements 54

       2. Test procedure 55

   12. High-efficiency showerheads and hand-held showers 55

       1. General 55

       2. Flow rate 55

       3. Spray force 56

          
          

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          © 2018 Canadian Standards Association

       4. Spray coverage 57

   13. High-efficiency commercial pre-rinse spray valves 58

       1. General 58

       2. Flow rate 58

       3. Spray force 59

          
          

6. Markings, packaging, and installation instructions 59

   1. General 59

   2. Temperature identification 59

   3. Packaging 60

   4. High-efficiency commercial pre-rinse spray valves 60

Annex A (informative) — Unit conversion and rounding criteria 84

Annex B (normative) — Tests by fitting type 85

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© 2018 Canadian Standards Association

∆ Preface

This is the fourth edition of ASME A112.18.1/CSA B125.1, Plumbing supply fittings. It supersedes the previous edition published in 2012.

Together with ASME A112.18.2/CSA B125.2, Plumbing waste fittings, CSA B125.3, Plumbing fittings, and ASME A112.18.6/CSA B125.6, Flexible water connectors, this Standard forms a series to cover plumbing fittings.

This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.

This Standard was prepared by the ASME/CSA Joint Harmonization Task Group on Plumbing Fittings, under the jurisdiction of the ASME Standards Committee on Plumbing Materials and Equipment and the CSA Technical Committee on Plumbing Fittings. The CSA Technical Committee operates under the jurisdiction of the CSA Strategic Steering Committee on Construction and Civil Infrastructure. This Standard has been formally approved by the ASME Standards Committee and the CSA Technical Committee. This Standard was approved as an American National Standard by the American National Standards Institute on June 22, 2018.

ASME Notes:

1. This standard was developed under procedures accredited as meeting the criteria for American National Standards and it is an American National Standard. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed Standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.

2. ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.

3. ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assume any such liability. Users of a standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility.

4. Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this standard.

5. ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals.

6. ASME issues written replies to inquiries concerning interpretation of technical aspects of this Standard. All inquiries regarding this Standard, including requests for interpretations, should be addressed to:

   Secretary, A112 Standards Committee

   The American Society of Mechanical Engineers Two Park Avenue

   New York, NY 10016-5990

   A request for interpretation should be clear and unambiguous. The request should

   • cite the applicable edition of the Standard for which the interpretation is being requested.

July 2018 © The American Society of Mechanical Engineers 18

© 2018 Canadian Standards Association

• phrase the question as a request for an interpretation of a specific requirement suitable for general understanding and use, not as a request for an approval of a proprietary design or situation. The inquirer may also include any plans or drawings, which are necessary to explain the question; however, they should not contain proprietary names or information.

ASME procedures provide for reconsideration of any interpretation when or if additional information that might affect an interpretation is available. Further, persons aggrieved by an interpretation may appeal to the cognizant ASME Committee.

Interpretations are published on the ASME Web site under the Committee Pages at https://www.asme.org/codes/ as they are issued.

CSA Notes:

1. Use of the singular does not exclude the plural (and vice versa) when the sense allows.

2. 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.

3. This publication was developed by consensus, which is defined by CSA Policy governing standardization — Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this publication.

4. 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.

5. To submit a request for interpretation of this Standard, please send the following information to

   inquiries@csagroup.org and include “Request for interpretation” in the subject line:

   1. define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;

   2. provide an explanation of circumstances surrounding the actual field condition; and

   3. where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue.

      Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.

6. Attention is drawn to the possibility that some of the elements of this Standard may be the subject of patent rights. CSA Group is not to be held responsible for identifying any or all such patent rights. Users of this Standard are expressly advised that determination of the validity of any such patent rights is entirely their own responsibility.

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© 2018 Canadian Standards Association

ASME A112.18.1-2018/CSA B125.1-18

Plumbing supply fittings

1 Scope

1.1

This Standard covers plumbing supply fittings and accessories located between the supply stop and the terminal fitting, inclusive, as follows:

1. automatic compensating valves for individual wall-mounted showering systems;

2. bath and shower supply fittings;

3. bidet supply fittings;

4. clothes washer supply fittings;

5. commercial pre-rinse spray valves;

6. drinking fountain supply fittings;

7. humidifier supply stops;

8. kitchen, sink, and lavatory supply fittings;

9. laundry tub supply fittings;

10. lawn and sediment faucets;

11. low-pressure water dispensers;

12. metering and self-closing supply fittings;

13. showerheads, hand-held showers, and body sprays; and

14. supply stops.

1.2

This Standard does not cover

1. plumbing waste fittings, which are covered by ASME A112.18.2/CSA B125.2;

2. other devices (e.g., temperature-actuated in-line mixing valves), which are covered by CSA B125.3 or other plumbing product Standards; and

3. flexible water connectors under continuous pressure, which are covered by ASME A112.18.6/CSA B125.6.

1.3

Except for push-fit fittings, this Standard does not cover pipes and tubes or pipe and tube fittings.

1.4

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability.

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.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

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© 2018 Canadian Standards Association