How is the differential pressure transmitter converted into a orifice flowmeter?
The orifice flowmeter is composed of a differential pressure transmitter and a orifice plate. Differential pressure transmitter is one of the two main equipments of orifice flowmeter.Therefore, according to the needs of the design of a hole plate, with the corresponding pressure pipe, valve...... Fit the differential pressure transmitter
The style and size of the orifice are measured according to the requirements (flow size, medium density, piping, temperature, pressure) Calculated. The differential pressure size to determine the prior theory cannot, in fact if requested in advance can do more than 90% (the calculation is also the first set a differential pressure value, but does not guarantee the differential pressure value can meet the requirements of the end).You can tell your orifice's maximum and minimum range to the orifice plate manufacturer so that they can be designed for the orifice plate.
There must be a root device, can choose the root operation in the control system.The calculation of the volume flow of a general orifice is:Q =0.63* (area of the hole on the orifice) * [2 * differential pressure / density] ^ (0.5)]