ASSE 1002-2015/ASME A112.1002-2015/

CSA B125.12-15

Anti-siphon fill valves for water closet tanks

TMA trade-mark of the Canadian Standards Association, operating as “CSA Group”

Published in December 2015 by CSA GroupA not-for-profit private sector organization

178 Rexdale Blvd., Toronto, Ontario, Canada M9W 1R31-800-463-6727 • 416-747-4044

Visit our Online Store at shop.csa.ca

ASSE 1002-2015/ASME A112.1002-2015/CSA B125.12-15

Anti-siphon fill valves for water closet tanks

ASSE International18927 Hickory Creek Dr., Suite 220Mokena, IL 60448Tel: (708) 995-3019Fax: (708) 479-6139

E-mail: general.info@asse-plumbing.org

www.asse-plumbing.org

© ASSE International — 2015

Commitment for Amendments

This Standard is issued jointly by The American Society of Mechanical Engineers (ASME), the ASSE International Chapter of IAPMO, LLC. (ASSE), and CSA Group. Amendments to this Standard will be made only after processing according to the Standards development procedures of ASME, ASSE, and CSA Group.

The American Society of Mechanical Engineers (ASME) Two Park AvenueNew York, NY 10016-5990USAwww.asme.org

ISBN 978-0-7918-7012-9© 2015

The 2015 edition of this Standard is being issued with an automatic addenda subscription service. The use of addenda allows revisions made in response to public review comments or committee actions to be published as necessary.

Published in December 2015 by CSA GroupA not-for-profit private sector organization178 Rexdale BoulevardToronto, Ontario, CanadaM9W 1R31-800-463-6727 or 416-747-4044Visit the CSA Group Online Store at shop.csa.ca

ISBN 978-1-77139-990-6© CSA Group — 2015

All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher

December 2015 iii

Contents

© 2015 ASSE International© 2015 The American Society of Mechanical Engineers© 2015 CSA Group Anti-siphon fill valves for water closet tanks

ASME A112 Standards Committee on Plumbing Materials and Equipment v

ASSE Product Standards Committee vii

CSA Technical Committee on Plumbing Fittings viii

ASME/ASSE/CSA Harmonization Task Group on Plumbing Fittings xi

Preface xiii

Section I 1

1 Scope 1

Section II 1

2 Reference publications and definitions 12.1 Reference publications 12.2 Definitions 22.3 Abbreviations 2

Section III 2

3 Design and general requirements 23.1 Pressure 23.2 Temperature 23.3 Refill tube 23.4 Backflow prevention 23.5 Dimensional criteria for fill valve components — End connections 23.6 Seating members 33.7 Materials 33.8 Servicing 33.9 Pressure-relief devices 3

Section IV 3

4 Performance requirements and test methods 34.1 General 34.2 Preconditioning and test conditions 34.2.1 Preconditioning 34.2.2 Test conditions 34.3 Test specimen installation 34.4 Pressure and temperature tests 44.4.1 Pressure and temperature cycling test 44.4.2 Static and dynamic seals, working pressure test 44.5 Life cycle test 54.5.1 Purpose 54.5.2 Test conditions 54.5.3 Procedure 54.5.4 Performance criteria 54.6 Critical level and backflow prevention tests 5

© 2015 ASSE International© 2015 The American Society of Mechanical Engineers

ASSE 1002-2015/ASME A112.1002-2015/CSA B125.12-15 © 2015 CSA Group

iv December 2015

4.6.1 Purpose 54.6.2 Procedure 54.6.3 Performance criteria 74.7 Flow rate test — Retrofit devices only 74.7.1 Purpose 74.7.2 Procedure 74.7.3 Performance criteria 74.8 Refill rate test — Retrofit devices only 84.8.1 Purpose 84.8.2 Procedure 84.8.3 Performance criteria 84.9 Thread torque strength test 84.9.1 Purpose 84.9.2 Procedure 84.9.3 Performance criteria 84.10 Hydrostatic pressure test 84.10.1 Purpose 84.10.2 Procedure 84.10.3 Performance criteria 9

Section V 9

5 Markings, packaging, and installation instructions and included literature 95.1 Markings 95.1.1 General 95.1.2 Visibility of markings 95.2 Installation and maintenance instructions — Retrofit devices only 95.2.1 Instructions 95.2.2 Packaging 9

Figures1 — Shank, locknut, and coupling nut dimensions 102 — Anti-siphon fill valve test assembly 113 — Location of critical level for anti-siphon fill valves 12