In the type of flow meter, the flow of various fluids. The standard nozzle throttling device is used with the differential pressure transmitter. Today Xiaobian mainly introduces the application and characteristics of nozzle flowmeters, hoping to help everyone.
Application of Nozzle Flowmeter Nozzle flowmeter has a long history background and various test data are complete. Simple structure, no moving parts, stable and reliable long-term use, rich design, manufacturing and application experience. With a high degree of standardization, it is not necessary to perform real-flow calibration. Standard orifice plate has reliable experimental data and perfect international and national standards. It has its own huge market both abroad and domestically. It is familiar with users and has improved data. It is flexible and convenient to follow international standards for calculation and processing. It is still the most widely used flow measurement in China. It is still a differential pressure flowmeter, according to estimates of relevant data. It accounts for 60%-70% of the total flow meter usage. It is widely used in many industries such as petroleum, chemical industry, mining and metallurgy, steel, power, water conservancy, papermaking, pharmaceuticals, food, and chemical fiber.
Nozzle Flowmeter Features Compared with orifice flowmeters, nozzle flowmeters have less pressure loss, thus saving energy, are more robust and durable, are suitable for high temperature and high pressure fluids, and are widely used for steam flow measurement in power, chemical and other industries. Nozzle flow meter includes standard nozzle (ISA1932 nozzle) and long neck nozzle. Its design and manufacture are in line with the international standard ISO5167 or the national standard GB/T2624.
The orifice plate and nozzle flowmeter are two different differential pressure flowmeters. 1. Nozzle Flowmeter Advantages: The standard nozzle has a long history, a large number of various test data, nozzle flowmeter structure is simple and solid, no moving parts, long-term use of stable and reliable, rich design and manufacturing and application experience, a high degree of standardization, can be No real flow calibration is necessary. The standard nozzle has reliable experimental data and perfect international and national standards. The measurement data is authentic and reliable and can be used as a trade settlement measurement table. Disadvantages: more complicated production, higher unit price. Orifice plate orifice meter advantages: higher cost performance. The standard orifice plate has a long history, international, national standards and verification procedures and a large number of test data, and does not require real-flow calibration. The measurement data is authentic and reliable and can be used as a trade settlement measurement table. Disadvantages: The wear, dirt, and other factors of the acute edge of the orifice plate will affect the measurement accuracy. The verification period is 6-12 months shorter.
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