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Orifice plate flowmeter is different from the traditional throttle device in most cases, it has a new generation of differential pressure stabilization system, to ensure that the differential pressure changes in the case of 0.05% accuracy to measure the flow, which is the main reason for the differential pressure orifice plate flowmeter best-selling market. If the orifice plate flowmeter is a small dark horse in the flow meter measurement, then the differential pressure orifice plate flowmeter is the black technology representative of the flow meter industry, because no matter from the appearance and the combination of complexity, the differential pressure orifice plate flowmeter is more complex. The structure of this flowmeter is not simple, to match the differential pressure transmitter, three-valve group, table bending, porous flange welding, etc., if one of them is not done well, then the synthesis time will affect its measurement accuracy.
Instrument Overview:
Differential pressure orifice plate flowmeter has a simple structure, easy maintenance, stable performance, reliable use and so on. Orifice plate throttling device is a standard throttling device can be calibrated directly in accordance with national standards of production, 1. National standard GB2624-81 < flow measurement throttling device design, installation and use >; 2. International standard ISO5167 < International Standards Organization of the provisions of a variety of throttling devices > 3. Ministry of Chemical Industry standard GJ516-87-HK06.
Principle and structure:
Fill the pipeline fluid, when they flow through the pipeline flow orifice plate, the flow rate will be in the flow orifice plate at the throttle to form a local contraction, thus accelerating the flow rate, static pressure reduction, so in the standard orifice plate before and after the pressure drop or called differential pressure, the greater the flow of media flow, the greater the pressure difference generated before and after the flow orifice plate, so you can measure the size of the fluid flow rate through the measurement of the differential pressure. This measurement method is based on the flow continuity equation (law of conservation of mass) and Bernoulli equation (law of conservation of energy) principle.
