Annubar flowmeter positive pressure hole plugging will have what effect to measure?
Annubar flowmeter flow facing surface (facing fluid side) of the positive pressure hole General of total pressure hole leads by the mean value, if positive pressure hole is provided with a plurality of blocked, positive pressure will be reduced, resulting in a total differential pressure decreases, flow rate decreases.
If measuring dirt medium is easy to block the pressure hole, it is recommended to install the purging device or filter at the front of the flowmeter.
If the negative pressure hole on the back surface is blocked and the negative pressure decreases, the total differential pressure should be increased and the flow value should be increased.
