Measure small flow of gas or liquid which one to use meter scale is better?

Abstract: the measurement of tiny flow of gas or liquid which one to use meter scale is better? Information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. LiangBang instrument production flow meter, is a domestic well-known brand flow meter, the domestic well-known flowmeter factory changzhou LiangBang instrument co. , LTD. Manufacturing sales. LiangBang instrument and meter plant production since 2004 * flowmeter, has ten years of history, up to now. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the measurement of tiny flow of gas or liquid which one to use meter scale is better? The article details. Production flow meter, is a domestic well-known brand flow meter, by the domestic well-known flowmeter factory city LiangBang instrumentation manufacturing sales. Factory production since 2004 * flowmeter, it has been a history of more than ten years, more than a decade has been sticking to & other * quality, customer first & throughout; The light of policy, implement GB/T19001 - 2000 quality management system requirements, to ensure product quality long-term stability and constantly improve, to provide users with high-quality products and perfect service. This time we need to talk about tiny flow medium what type of flow meter to measure. Suitable for measuring small flowmeter has a variety of commonly used, such as differential pressure type, float type, volume, heat, etc. , some of the flowmeter is suitable for measuring large flow, also suitable for measuring small flow rate, and others are designed to measure small flow rate. 1, the differential pressure flow meter is composed of standard throttling device and differential pressure type differential pressure flowmeter, in small flow measurement is limited by three aspects. * a limit is the size of the pipe diameter. Standard throttle device that applies to more than 50 mm and 50 mm diameter. Pipe diameter is too hours, throttling device smaller in diameter, according to the shape of the standard stipulated in the similar processing difficulty. The second limitation is the differential is too small. This pressure differential is proportional to the square of the velocity, when low velocity to a certain value, differential pressure becomes very small, so can't tell. The third limit is lower Reynolds number. Different throttling device, the Reynolds number lower limit is different also, as a general rule, Reynolds number & ge; The boundaries of 104 can be used. Reynolds number with the lower limit of the corresponding average flow velocity and flow rate is the lower limit of small flow measurement. Reynolds number is too small, the outflow coefficient can produce significant change along with the change of Reynolds number, so that increases the uncertainty. 2, flow meter, flow meter is mainly composed of float and tapered tube. Glass tube flow meter in the cone tube for glass tube; Tapered pipe metal tube flow meter, fluid temperature can reach 180 ℃, 13 mpa fluid pressure. Flow meter belongs to the low precision instrument, metal flow meter, the basic error of on-site instruction type is 1% ~ 2. 5% FS, remote transmission type is 1% ~ 4% FS. Small diameter glass tube flow meter to 2. 5％～5％FS。 Therefore, generally only applies to traffic monitoring, and is not used for accounting measurement. Glass tube flow meter is only applicable to gas and high transparency of the liquid, otherwise the float height in the tapered tube is not easy to see. And metal pipe float flowmeter has no this limit. Small float flowmeter of the flow measurement range can be done is very small, in which water is 0. 3 ~ 3 l/h, and the air is 5 ~ 50 l/h. Environmental protection is used in a lot of atmospheric sampler, process on-line analytical instruments and laboratory analysis instruments commonly used tiny glass float flowmeter, the measurement range can be smaller. In the industrial process of the liquid level, flow, density measurement, if measured medium viscosity larger or corrosive. Commonly used methods for isolation, blow gas or liquid blowing, blowing flow rate commonly used float flowmeter measurement. In the gas ( Liquid) Source pressure fluctuation is bigger or pressure measured medium volatile situation, in order to make the blow, blow liquid flow stability and accurate measurement, some products will float flowmeter and regulator ( Constant current) As a constant differential pressure flow regulator. The development of instrument and meter industry, instrument and meter industry technical breakthroughs cannot leave the instrument manufacturer's support and effort. Our company as a flow meter manufacturer, we study hard, and new technology, the introduction of advanced equipment, research and development more technology, meet the needs of more customers. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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