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Turbine meter scale selection considerations

by:Sincerity     2020-10-19
Abstract: the turbine meter scale selection considerations of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Because of the turbine flowmeter type specification is various, especially the different factory product quality have difference, selection has the following points need to pay attention to consider: 1. Flow range: the choice of turbine flowmeter flow range for its accuracy and use fixed number of year is larger. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a turbine meter scale selection considerations article details. Because of the turbine flowmeter type specification is various, especially the different factory product quality have difference, selection has the following points need to pay attention to consider: 1. Flow range: the choice of turbine flowmeter flow range have large effects on the accuracy and use fixed number of year, and each diameter of flowmeter has the certain measuring range, flow meter caliber choice is determined by the flow range. Select the principle of the flow range is: zui small flow rate shall not be lower than when using the instrument allows measuring zui small flow rate, when using the zui big flow rate shall not be higher than the instrument allows the measurement of zui traffic. For instrument operation time is not more than eight hours a day in the intermittent work situation, choose the actual when using zui large flow rate of 1. Three times as the maximum flow range; For daily instrument the actual running time no less than eight hours of continuous work situation, choose the actual when using zui large flow rate of 1. Four times as flow range limit. Instrument minimum flow used in actual zui small flow of 0. Eight times as appropriate. 2. The density of the gas, the gas turbine flowmeter, the influence of fluid physical properties are mainly gas density. Its effect on the meter coefficient is larger, and mainly in the low flow area. If gas density change frequently, to meter the flow coefficient of correction measures. 3. The pressure loss: as far as possible choose small pressure loss of turbine flowmeter. Because the smaller the pressure loss of fluid through the turbine flowmeter, the fluid from input to output pipe the energy they consume less, that the total power will be reduced, thus can greatly save energy. Lower transport costs, improve efficiency. 4. Structure: 1) Internal structure appropriate chooses the type turbine flowmeter. Because the push structure within a certain range of traffic in a floating state, can make the impeller axial there is no contact point, endless surface friction and wear, can prolong the service life of bearing. ( 2) According to the pipeline connection mode selection, flowmeter has two ways of the horizontal and vertical installation, horizontal and pipeline connection flange connection, threaded connection and connection. Medium caliber choose flange connection; Small diameter and high pressure pipeline selects the threaded connections: clamp connection is only applicable to low pressure small diameter; Vertical installation only threaded connections. ( 3) According to the environmental condition selection, considering the influence of temperature and humidity. Natural gas measurement to choose this type explosion-proof turbine flowmeter. 5. Bearing, bearing of turbine flowmeter will typically have three classes of tungsten carbide, ptfe, carbon graphite material. Natural gas metering instrument bearing should choose tungsten carbide material. Should try to collect factory model selection of the turbine meter and the related technical standard of product data, comparing repeatedly surveyed before deciding. In order to avoid inaccurate selection, resulting in unnecessary loss! Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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