Evaluation of in‐service residential nutating disc water meter performance

Evaluation of in‐service residential nutating disc water meter performance

This article reports the experimental evaluation of registry error of in‐service residential water meters and the effects of service time (ST) and volumetric throughput (TP). Nutating disc (ND) meters (413 total, consisting of two models) from a single water system were tested ex situ following AWWA...

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Veröffentlicht in:AWWA water science 2019-01, Vol.1 (1), p.n/a
Hauptverfasser: Mantilla‐Peña, Carlos F., Widdowson, Mark A., Boardman, Gregory D.
Format: Artikel
Sprache:eng
Schlagworte:
apparent water losses
Flow rates
nonrevenue water
service time
volumetric throughput
water meter accuracy
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Zusammenfassung:This article reports the experimental evaluation of registry error of in‐service residential water meters and the effects of service time (ST) and volumetric throughput (TP). Nutating disc (ND) meters (413 total, consisting of two models) from a single water system were tested ex situ following AWWA‐recommended test flow rates (TQs). The meters sampled encompassed a range of ST (2–53 years) and TP (0.01–7.65 mil gal). Mean registration error (RE) at TQ ≤ 0.5 gpm was significantly greater for ST > 25 years, independent of TP. Mean RE at TQ = 0.25 gpm was −46.5% and −35.0% for meters with 25 
ISSN:2577-8161
2577-8161
DOI:10.1002/aws2.1113