By American Water Works Association
"Operators, technicians, and engineers will locate the knowledge during this guide important for gaining a uncomplicated realizing of the use and alertness of air valves. A worthwhile consultant for choosing, sizing, finding, and fitting air valves in water purposes, M51 presents info on air valve varieties indexed in AWWA typical C512, most recent version, together with the subsequent: air-release valve; air/vacuum valve; and mixture air valve."--BOOK JACKET.Title precis box supplied via Blackwell North the United States, Inc. All Rights Reserved. Read more...
"Operators, technicians, and engineers will locate the knowledge during this handbook helpful for gaining a easy figuring out of the use and alertness of air valves. A beneficial advisor for choosing, sizing, finding, and fitting air valves in water purposes, M51 offers details on air valve kinds indexed in AWWA ordinary C512, newest version, together with the subsequent: air-release valve; air/vacuum valve; and mixture air valve."--BOOK JACKET.Title precis box supplied through Blackwell North the US, Inc. All Rights Reserved
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Additional info for Air-release, air/vacuum, and combination air valves
Figure 5-1 shows the proper location of an airhacuum valve with slow-closing device. Air-release valves can be used with time-delayed, power-actuated pump discharge control valves to release air in the pump column slowly under full pump pressure before the control check valve opens. AirNacuum Valve (or Combination Air Valve) 2 Well Pump X---I Slow-Closing Device --``,,,,``,``,`,`,````,,`,,````-`-`,,`,,`,`,,`--- Check Valve I Figure 5-1 Air/vacuum valve at well pump Copyright American Water Works Association Provided by IHS under license with AWWA No reproduction or networking permitted without license from IHS Licensee=ATLATEC S A DE C V/5972499002 Not for Resale, 03/18/2009 15:20:15 MDT WATER HAMMER EFFECTS 25 AIR VALVES O N PIPELINES The presence of air in a transmission pipeline may reduce the conveyance capacity of the pipeline substantially.
Steel Pipe-A Guide for Design and Installation, 3rd edition, Denver, Colo. Kroon, Joseph R. et al. 1984. “Water Hammer: Causes and Effects,” Journal AWWA, November. , et al. 1989. Pumping Station Design, Butterworth-Heinemann, Boston. Copyright American Water Works Association Provided by IHS under license with AWWA No reproduction or networking permitted without license from IHS Tullis, J. Paul. 1989. Hydraulics of Pipelines, John Wiley & Sons, New York. , “Surge Reference Manual,” Department of Civil Engineering, University of Kentucky, latest edition.
AWWA Standard for Air-Release, AirNacuum and Combination Air Valves for Waterworks Service, AWWA C512-92 (latest edition), Denver, Colo. Colorado State University. 1977. Concepts of Water Hammer & Air Entrapment in the Filling & Testing of Pipelines. Fort Collins, Colo. Dean, John A. 1992. Lange’s Handbook of Chemistry. McGraw Hill, New York. Edmunds, Robert C. 1979. Air Binding in Pipes, Journal AWWA, May, 1979. flow of Fluids. 1982. Technical Paper No. 410, Crane. Giles, Ranald V. Fluid Mechanics and Hydraulics, (2nd edition) McGraw Hill, New York.
Air-release, air/vacuum, and combination air valves by American Water Works Association