Eccentric orifice flowmeter
For the standard orifice plate, under the condition of dirty flow, it is easy to form dirt and sludge before and after the orifice plate, which will change the effective area of the pipeline before and after the throttling piece, causing deviation in the measurement. In view of this situation, in order to ensure the easy passage of the dirty flow, it will not stay before and after the throttle. In this case, an eccentric orifice is required for the measurement of the dirty flow.
. The structure is simple and firm.
. It can measure dirty media.
. Only suitable for installation in horizontal pipelines.
The main technical parameters:
. Pressure taking method: corner connection pressure
. Nominal pressure: ≤ 32MPa (≥ 20MPa can be welded)
. Nominal diameter: 100 ～ 1000mm
. Accuracy (uncertainty): ± 3%
. Scope of application: opening diameter ratio β: 0.46 ≤β≤ 0.84
Reynolds number range ReD: 0.3 ≤β≤ 0.84
0.136 ≤ C β 2( 1- β 4) -0.5 ≤ 0.42
10 6 β≥ ReD ≥ 2 × 10 5
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