Air-release, air/vacuum, and combination air valves
American Water Works Association, Dec 1, 2001 - Technology & Engineering - 37 pages
Operators, technicians, and engineers will find the information in this manual useful for gaining a basic understanding of the use and application of air valves. A valuable guide for selecting, sizing, locating, and installing air valves in water applications, M51 provides information on air valve types listed in AWWA Standard C512, latest edition, including the following: air-release valve; air/vacuum valve; and combination air valve.
4 pages matching discharge coefficient in this book
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Locating Air Valves Along a Pipeline
Water Hammer Effects
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4-2 Air Discharge Admitting air air during pipeline Air Inflow air pocket Air Under Pressure air-release valve Air/Vac or Combination air/vacuum or combination air/vacuum valve atmospheric pressure chapter check valve coefficient of 0.7 collapse column separation combination air valves compressible adiabatic flow Cranberry Township differential pressure discharge coefficient dual-body filling rate flow rate freezing Graph of Large gravity flow head loss high point hydraulic gradient inflow capacity inflow of air large-diameter latest edition Lescovich line break manual Manufacturing maximum working pressure mechanical advantage negative pressure conditions operation orifice diameter orifice size pipe pipeline draining pipeline filling pipeline pressure prevent psia psig pump discharge RELEASING AIR Second Edition section Sizing shutoff valve Sizing for Gravity Sizing for Pipeline slope slow-closing devices sonic flow Table of Large Val-Matic Valve valve or combination valve orifice valve outlet Valve Required valve suppliers valve vault vent air Venturi Meters vertical turbine water hammer