Distribution Valves
Author: AWWA Staff
Publisher: American Water Works Association
Published: 2011-01-12
Total Pages: 72
ISBN-13: 1613000308
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Author: AWWA Staff
Publisher: American Water Works Association
Published: 2011-01-12
Total Pages: 72
ISBN-13: 1613000308
DOWNLOAD EBOOKAuthor: National Research Council
Publisher: National Academies Press
Published: 2006-12-22
Total Pages: 404
ISBN-13: 0309133955
DOWNLOAD EBOOKProtecting and maintaining water distributions systems is crucial to ensuring high quality drinking water. Distribution systems-consisting of pipes, pumps, valves, storage tanks, reservoirs, meters, fittings, and other hydraulic appurtenances-carry drinking water from a centralized treatment plant or well supplies to consumers' taps. Spanning almost 1 million miles in the United States, distribution systems represent the vast majority of physical infrastructure for water supplies, and thus constitute the primary management challenge from both an operational and public health standpoint. Recent data on waterborne disease outbreaks suggest that distribution systems remain a source of contamination that has yet to be fully addressed. This report evaluates approaches for risk characterization and recent data, and it identifies a variety of strategies that could be considered to reduce the risks posed by water-quality deteriorating events in distribution systems. Particular attention is given to backflow events via cross connections, the potential for contamination of the distribution system during construction and repair activities, maintenance of storage facilities, and the role of premise plumbing in public health risk. The report also identifies advances in detection, monitoring and modeling, analytical methods, and research and development opportunities that will enable the water supply industry to further reduce risks associated with drinking water distribution systems.
Author:
Publisher:
Published: 2016
Total Pages: 73
ISBN-13: 9781523119653
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Publisher:
Published: 2006
Total Pages: 0
ISBN-13: 9781583214305
DOWNLOAD EBOOKUpdated from the 1996 edtion, this operations manual provides practical information on selecting, installing, field testing, and maintaining distribution valves in potable water systems. It covers the most commonly used values including globe, butterfly, plug, ball, cone, gate and check. Unloading, inspection, storage, installation, testing, maintenance, and record-keeping are described in detail along with the history and theory. This manual will be particularly usefeul for small and medium sized organizations.
Author: J. Paul Guyer, P.E., R.A.
Publisher: Guyer Partners
Published: 2018-01-19
Total Pages: 32
ISBN-13:
DOWNLOAD EBOOKIntroductory technical guidance for civil engineers and water distribution system operators interested in application and maintenance of system appurtenances. Here is what is discussed: 1. VALVES AND HYDRANTS 2. INSTRUMENTATION AND CONTROLS (I&C), AND WATER METERS 3. CROSS-CONNECTION CONTROL AND BACKFLOW PREVENTION.
Author: American Water Works Association
Publisher: American Water Works Association
Published: 2003
Total Pages: 576
ISBN-13: 9781583212318
DOWNLOAD EBOOKWater distribution systems are made up of pipe, valves and pumps through which treated water is moved from the treament plant to homes, offices, industries, and other consumers. The types of materials and equipment used by each water system are usually governed by local conditions, past practices, and economics. Consequently, drinking water professionals must be knowledgeable about common types of equipment and operating methods that are available. Completely revised and updated, Water transmission and distribution includes information on the following: distribution system design and operation and maintenance ; piping materials ; valves, pumps, and water meters ; water main installation ; backfilling, main testing, and installation safety ; fire hyfrants ; water storage ; water services ; cross-connection control ; motors and engines ; instrumentation and control ; information management and public relations.--Cover page [4].
Author: J. Paul Guyer, P.E., R.A.
Publisher: Guyer Partners
Published: 2021-10-06
Total Pages: 57
ISBN-13:
DOWNLOAD EBOOKIntroductory technical guidance for civil engineers and other professional engineers and construction managers interested in operation and maintenance of domestic water distribution systems. Here is what is discussed: 1. INTRODUCTION 2. DISTRIBUTION 3. STORAGE 4. VALVES AND HYDRANTS 5. I&C AND WATER METERS 6. CROSS-CONNECTION CONTROL AND BACKFLOW PREVENTION
Author: Kala K. Fleming
Publisher: American Water Works Association
Published: 2006
Total Pages: 140
ISBN-13: 1583215115
DOWNLOAD EBOOKLow or negative pressure transients (also called surge or water hammer) create temporary opportunities for external chemical and microbial contaminants at higher pressure to enter the water distribution system, creating potential health hazard and potential weakening of distribution pipes, leading to failure. This study investigates how such events as power outages, pump shutdowns, valve operations, main flushing, firefighting, and main breaks can create significant rapid, temporary drops in system pressure. The report offers useful recommendations for using surge models to optimally locate pressure monitors and to minimize the occurrence and impact from low- and negative-pressure transients.
Author: Awwa
Publisher:
Published: 2016
Total Pages: 0
ISBN-13: 9781625760821
DOWNLOAD EBOOKUpdated information on valve selection and installation as well as the importance of location, condition, and frequency of operation. Also includes the latest methodologies and technologies for handling, inspecting, shipping, and storing valves and their associated parts.
Author: Larry Mays
Publisher: American Water Works Association
Published: 2011-01-12
Total Pages: 561
ISBN-13: 1613001126
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