作者: Kurt Bozenmayer , Donald J. Butterworth , Thomas A. Davis
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摘要: An air/water distributor underdrain assembly for providing a uniform distribution and metering of backwash air and/or water through filter bed. The includes member which defines chamber receipt thereinto. A plurality first second spaced apart openings extend the member. shroud extends downwardly into from each in fluid communication with an intermediate portion directing therethrough. Backwash collected gas compartment formed upper is directed openings.