Flow Control - Jan 2012
january 2012 Vol XVIII No 1 features 16 Under Pressure strategies for limiting leakage loss in water distribution systems 22 Doing Diagnostics real world applications of digital valve technology 26 Considering Variable Area Flowmeters a device with a fascinating past potentially a bright future 34 Emerson Process Managements Device Dashboards are designed for ease of use a concept that is at the heart of the companys Human Centered Design initiative Flow Control ISSN 1081 7107 is published 12 times a year by Grand View Media Group 200 Croft Street Suite 1 Birmingham AL 35242 A controlled circulation publication Flow Control is distributed without charge to qualified subscribers Non qualified subscription rates in the U S and Canada one year 99 two year 172 Foreign subscription rates one year 150 two year 262 Wire Transfer 180 Please call or e mail the Circulation Manager for more wire transfer information Single copies 10 per issue in the U S and Canada Single copies 15 per issue in all other countries All subscription payments are due in U S funds Canada Post Publications Mail Agreement 40612608 Canada Returns to be sent to Bleuchip International P O Box 25542 London ON N6C 6B2 POSTMASTER Send address changes to Flow Control PO BOX 2174 Skokie IL 60076 7874 Periodical postage rates paid at Birmingham AL 35242 and additional mailing offices Entire contents copyright 2012 No portion of this publication may be reproduced in any form without written permission of the publisher Views expressed by the bylined contributors should not be construed as reflecting the opinion of this publication Publication of product service information should not be deemed as a recommendation by the publisher Editorial contributions are accepted from the fluid handling industry Contact the editor for details Product service information should be submitted in accordance with guidelines available from the editor Editorial closing date is two months prior to the month of publication Advertising close is the last working day of the month two months prior to the month of publication products 38 NEW PRODUCTS plus 45 REFERENCE SHELF 46 ADVERTISER INDEX 46 PRODUCT INDEX In North America it is estimated that between 10 percent and 30 percent of the water pumped or fed into the distribution network simply leaks into the ground 16 6 columns 4 VIEWPOINT through the struggle 14 APPLICATIONS CORNER the variable speed drive was justified 30 THE PUMP GUY chaos on steroids revisited 34 USEABILITY FILE emersons human centered design approach departments 6 NEWS NOTES is stuxnet dead study finds clean wastewater creates super bacteria japan looks to renewable power global demand for industrial valves to approach 94 bil reader feedback 47 THINK TANK flowmeter accuracy 48 QUIZ CORNER upstream straight run obstructions The Siemens PCS7 S7 Programmable Logic Controller PLC was the target of the 2010 Stuxnet worm attack Subscription Information Toll Free 8667214807 Outside US 8477631867 Mail P O Box 2174 Skokie IL 60076 7874 E mail flowcontrol@ halldata com Subscribe Renew Change of Address www flowcontrolnetwork com subscribe 2 January 2012 Flow Control
You must have JavaScript enabled to view digital editions.
