Turbine flowmeter and oval gear flowmeter is one of the liquid flow measurement, which is the difference between the two, it is easy to introduce:
The difference between the 1, the structure and working principle of the flowmeter, liquid turbine flowmeter is a velocity type flowmeter, the accuracy was 0.5%, the body material is 304 stainless steel, can be made of explosion-proof products according to the requirements of the site. Oval gear flowmeter is a kind of positive displacement flowmeter, its accuracy is also in 0.5%, it is a mechanical structure, the flowmeter will rotate when the counter rotation, can produce a cumulative total.
2, the difference between the measurement medium: pure water, alcohol, light oil and other media can be very good for liquid turbine flowmeter, if the viscosity of the measurement medium is too large, it is not suitable for application. The elliptical gear flowmeter is generally applicable to oil medium, medium viscosity is bigger, its precision is higher, and for some electrolyte solution with water, elliptical gear flowmeter can not be used, because of its internal mechanical parts easily because of the water damaged.
The difference between the 3, work environment can withstand the pressure: the lowest pressure turbine flowmeter in the pipe is not too big, basically as long as the medium flows through, can measure, and requirements of elliptical gear flowmeter on the minimum working pressure is relatively high. Because the caliber is different, the flowmeter in the work of the pressure is not the same, from the minimum diameter to the maximum diameter of the minimum working pressure is between 0.8MPa.
4, the installation of straight pipe flowmeter is required on site and turbine flowmeter is as velocity type flowmeter of straight pipe section is relatively high, especially some small caliber is basically no straight pipe section, is a must complete the corresponding straight pipe. Because of its internal structure is different, if easy to produce the vortex flowmeter with airflow near the elbow will be too close to the place, will have an impact on the impeller, which will affect the accuracy of the flowmeter. The elliptical gear flowmeter is a kind of positive displacement flowmeter, which has a lower requirement for the straight pipe section.