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The six thin and six thick EEC orifice plates were calibrated in the 250 mm meter run in the cold-water test facility at Delft Hydraulics Laboratory. The basic discharge coefficients, the velocity profile at the measuring section and the dimensional checks on the plates are presented. Agreement to within 0.2% was found with the 1984 DHL coefficients, apart from two cases.

Additional information

Authors: WATERLOOPKUNDIG LABORATORIUM, Delft Hydraulics Laboratory, Delft (NL)
Bibliographic Reference: EUR 13750 EN (1991) 71 pp., MF, ECU 4
Availability: (2)
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