The Art of the Flush - Plumbing Engineer

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pe07_pgs_06_07rev:Layout 1 6/28/10 11:42 AM Page 6 From the desk of Tom Brown By Tom M. Brown President A successful 20 years Twenty years ago, on July 2, 1990, I purchased Plumbing Engineer and started my own publishing company after serving as PE’s publisher for eight years. Since then, the journey for me has been an exciting one. Together, we’ve seen the magazine grow from its humble beginnings to accounting for nearly 70% of the market share, and I couldn’t have done it without the combined efforts of TMB Publishing’s dedicated sales, editorial and design staff, and the never-ending loyalty of our advertisers and readers. In the July/August 1990 issue, I wrote that our goal was to “provide highquality editorial coverage for the plumbing engineer who designs and specifies systems/products for commercial, industrial and institutional buildings” and that for manufacturers we would continue to offer “top market coverage at a reasonable cost” and maintain a circulation “dedicated to reach engineers involved in plumbing specifications.” While Plumbing Engineer has gone through some changes over the years — both minor and major — those same core principles have remained in place and we don’t plan to renege on that promise. So, on behalf of the entire staff at TMB Publishing, I thank each and everyone of you, our devoted readers and advertisers, and I hope you’ll continue to support and champion the magazine for another successful 20 years. n Editorial, Advertising, Production, Accounting and Administrative Offices 1838 Techny Ct. Northbrook, IL 60062 (847) 564-1127 • Fax: (847) 564-1264 E-mail: info@tmbpublishing.com Owner Tom M. Brown Editorial & Production Staff John Mesenbrink, Editorial Director Marilyn Cunningham, Associate Editor Cate C. Brown, Production Manager Mark Bruno, Art Director/Prepress Kevin C. Krull (left), VP/Secretary, general counsel, Elsevier Business Press and Tom Brown after the sale of Plumbing Engineer in 1990. PLUMBING ENGINEER (USPS 567-950) ISSN 0192-1711 PLUMBING ENGINEER (USPS 567-950) ISSN 0192-1711 is published monthly by TMB Publishing Inc., 1838 Techny Court, Northbrook, IL 60062. Phone (847) 564-1127, Fax (847) 564-1264. Magazine is free to those who design and specify plumbing/piping systems in commercial, industrial, institutional and governmental buildings; as well as government officials and plumbing inspectors. Subscription rates for U.S. and Canada: $50 for one year, $90 for two years. Other countries: $300 per year. Periodical postage paid at Northbrook, IL, and additional mailing offices. POSTMASTER: Change of address should be sent to Plumbing Engineer, 519 E. Briarcliff Rd, Bolingbrook, IL 60440. Material and opinions contained in contributed articles are the responsibility of the authors, not of TMB Publishing Inc., Plumbing Engineer magazine or its Editorial Advisory Board. The publisher cannot assume responsibility for any claims made by advertisers. Copyright © 2010 TMB Publishing Inc. All rights reserved. Volume 38, Number 7. Plumbing Engineer is microfilmed by University Microfilms, Ann Arbor, MI, and indexed by Engineering Index Inc. Publications Mail Agreement No. 41499518. Return Undeliverable Canadian Addresses to PO Box 503, RPO West Beaver Creek, Richmond Hill ON L4B 4R6 Contributors Timothy Allinson, P.E., Designer’s Guide Sam Dannaway, Fire Protection Ron George, CPD, Code Update Dan Holohan, Heating Help Bob “Hot Rod” Rohr, Green Systems Bristol Stickney, Solar Solutions Sales Staff Brad Burnside, Publisher East 1838 Techny Court, Northbrook, IL 60062 Phone: 847/564-1127 Cell: 224/659-3984 Fax: 847/564-1264 E-mail: brad@tmbpublishing.com David Schulte Midwest, South and E. Canada 1838 Techny Court, Northbrook, IL 60062 Phone: 847/564-1127 Cell: 847/420-4686 Fax: 847/564-1264 E-mail: dave@tmbpublishing.com Diane Spangler West, Texas and W. Canada PO Box 9802, Fountain Valley, CA 92728 Phone: 714/839-6700 Fax: 714/839-6777 E-mail: diane@tmbpublishing.com Page 6/Plumbing Engineer July 2010
pe07_pgs_06_07:Layout 1 6/28/10 8:16 AM Page 7 If you specify this: “Must meet the new ASSE Standard 1071...” All you need to know is: “Leonard Valve, Emergency Mixing Valves” Leonard Valve’s series of emergency mixing valves still provide the same quality and performance and are now certified to the new ASSE 1071 standard. ASSE Standard 1071 was developed to work with systems that comply with ANSI Z358.1 (2009) for emergency equipment (i.e. eye/face wash and drench showers). It adds a logical assurance that emergency mixing valves provide tepid water to the emergency devices. Key performance requirement is Cold Water Failure, Section 1.2.6, stating that “upon cold water failure, the hot water shall continue to flow at a rate not to exceed the values listed in Table 1.” We’ve always published our bypass flow rates and can continue to say with confidence that we’ve got your tempered water needs covered. Leonard’s emergency mixing valves utilize our DURA-TROL ® bi-metal which are the most durable and fastest reacting thermostats in the industry. Precise water temperature control is what you can expect from Leonard Valve. Have a question about this new standard Call our free technical support hotline at 888.797.4456 or visit our website, www.leonardvalve.com Table 1 Flow @ 30.0 psi ± 0.5 psi Permissible temperature variation Maximum allowable flow (206.9 kPa ± 3.4 kPa) differential above or below set point with cold water shut off GPM L/min ºF ºC GPM L/min
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The Art of the Flush - Plumbing Engineer

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