Pilot-Operated Control Valves

Transcription

1 SM ANSI/AWWA C (Revision of ANSI/AWWA C530-12) AWWA Standard Pilot-Operated Control Valves Effective date: Sept. 1, First edition approved by AWWA Board of Directors June 24, This edition approved June 11, Approved by American National Standards Institute April 6, 2017.

2 AWWA Standard This document is an American Water Works Association standard. It is not a specification. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative information normally contained in specifications. The AWWA standards usually contain options that must be evaluated by the user of the standard. Until each optional feature is specified by the user, the product or service is not fully defined. AWWA publication of a standard does not constitute endorsement of any product or product type, nor does AWWA test, certify, or approve any product. The use of AWWA standards is entirely voluntary. This standard does not supersede or take precedence over or displace any applicable law, regulation, or code of any governmental authority. AWWA standards are intended to represent a consensus of the water industry that the product described will provide satisfactory service. When AWWA revises or withdraws this standard, an official notice of action will be placed on the first page of the Official Notice section of Journal American Water Works Association. The action becomes effective on the first day of the month following the month of Journal American Water Works Association publication of the official notice. American National Standard An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether that person has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standard. American National Standards are subject to periodic review, and users are cautioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encouraged to state on their own responsibility in advertising and promotional materials or on tags or labels that the goods are produced in conformity with particular American National Standards. Caution Notice: The American National Standards Institute (ANSI) approval date on the front cover of this standard indicates completion of the ANSI approval process. This American National Standard may be revised or withdrawn at any time. ANSI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of publication. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; ; or ing info@ansi.org. This AWWA content is the product of thousands of hours of work by your fellow water professionals. Revenue from the sales of this AWWA material supports ongoing product development. Unauthorized distribution, either electronic or photocopied, is illegal and hinders AWWA s mission to support the water community. ISBN-13, print: eisbn-13, electronic: DOI: All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information or retrieval system, except in the form of brief excerpts or quotations for review purposes, without the written permission of the publisher. Copyright 2017 by American Water Works Association Printed in USA ii

3 Committee Personnel The AWWA Standards Committee on Pilot-Operated Control Valves, which reviewed and approved this standard, had the following personnel at the time: Doug Rhodes, Chair General Interest Members A. Ali, ADA Consulting, Surrey, B.C., Canada M.L. Altland, Hatch Mott Macdonald, Iselin, N.J. F.H. Hanson, Albert A. Webb Associates, Riverside, Calif. D. Kronebusch, Opus International Consultants (Canada) Ltd., Prince George, B.C., Canada T.J. McCandless,* Standards Engineer Staff Advisor, AWWA, Denver, Colo. E.M. Norum, California State University Center for Irrigation Technology, Fresno, Calif. D. Rhodes, Consultant, Kelowna, B.C., Canada R.M. Schwecke, HDR Engineering Inc., Phoenix, Ariz. J. Vorheis, CH2M, San Antonio, Texas R.A. Waggenspack, Owen & White Inc., Baton Rouge, La. Producer Members B. Andersson, Flomatic Corp., Glen Falls, N.Y. F.G. Fuller, Cla-Val, Newport Beach, Calif. S.D. Jernigan, OCV Control Valves, Tulsa, Okla. J. Malo, Singer Valve Inc., Surrey, B.C., Canada W.S. Moore, Cla-Val, Alexandria, Va. W.J. Nicholl, GA Industries Inc., Cranberry Township, Pa. A. Ross, Ross Valve Manufacturing Company Inc., Troy, N.Y. D. Wiehage, Consultant, Cypress, Texas User Members A. De Capite, Calgary Infrastructure and Info Services, Calgary, Alta., Canada * Liaison, nonvoting Alternate iii

4 M.H. Johnson, Massachusetts Water Resources Authority, Reading, Mass. D. Larson,* Standards Council Liaison, Jefferson County, Barnhart, Mo. R. Kilborn, Town of Gilbert NWTP, Gilbert, Ariz. P.J. Ries, Denver Water, Denver, Colo. J.V. Young, City of Richmond, Richmond, B.C., Canada * Liaison, nonvoting iv

5 Contents All AWWA standards follow the general format indicated subsequently. Some variations from this format may be found in a particular standard. SEC. PAGE SEC. PAGE Foreword I Introduction... vii I.A Background... vii I.B History... vii I.C Acceptance... vii II Special Issues... viii II.A Chlorine and Chloramine Degradation of Elastomers... ix III Use of This Standard... ix III.A Purchaser Options and Alternatives... ix III.B Laying Length... x III.C Performance Test... xi III.D Valve Test Media... xi III.E Modification to Standard... xi IV Major Revisions... xi V Comments... xi Standard 1 General 1.1 Scope Purpose Application References Definitions Requirements 4.1 Data Provided by Manufacturer Materials General Design Workmanship and Painting Permeation Verification 5.1 Inspection Testing Notice of Nonconformance Delivery 6.1 Markings Shipping Affidavit of Compliance Sizing and Application 7.1 Valve Basics Control Functions Pressure-Reducing Function Pressure-Relief/Sustaining Function Solenoid Control Function Pump Control Function Altitude Control Function Rate-of-Flow Control Function v

6 SEC. PAGE SEC. PAGE Appendix A Installation, Operation, and Maintenance Pilot-Operated Control Valves A.1 General A.2 Unloading A.3 Storage A.4 Inspection A.5 Installation A.6 Records A.7 Maintenance A.8 Operations vi