Current output type liquid turbine flowmeter

1、 Overview: The LWGY series current output liquid turbine flowmeter is a new generation of turbine flowmeter that has been optimized and designed based on domestic and foreign flow instrument technology. It has the characteristics of simple structure, lightweight, high accuracy, good reproducibility, sensitive response, and easy installation, maintenance, and use. It is widely used to measure liquids in closed pipelines that do not corrode stainless steel 1Cr18Ni9Ti, 2Cr13, corundum Al2O3, and hard alloys, and have no impurities such as fibers or particles. The flow meter can be used after real liquid calibration for liquids with a dynamic viscosity greater than 5 × 10-6m2/s at working temperature. If paired with display instruments with special functions, it can also perform quantitative control, over limit alarm, etc., making it an ideal instrument for flow measurement and energy conservation. This type of turbine flow product itself does not have on-site display function, and only transmits the flow signal in the form of 4-20mA for remote output. The instrument is inexpensive, highly integrated, and compact in size, making it particularly suitable for use with computer control systems such as secondary displays, PLCs, and DCS. 2、 Product features: 1. Height, generally up to ± 1% R, ± 0.5% R, high-precision type up to ± 0.2% R; 2. Good repeatability, short-term repeatability up to 0.05%~0.2%, precisely because of its good repeatability, such as frequent calibration or online calibration can achieve extremely high accuracy, it is a preferred flowmeter in trade settlement; 3. Wide range, with a medium to large caliber of up to 1:20 and a small caliber of 1:10; 4. Compact and lightweight structure, easy installation and maintenance, and high circulation capacity; 5. Suitable for high voltage measurement, there is no need to open holes on the instrument body, making it easy to make high voltage instruments; 6. There are various types of specialized sensors that can be designed according to the specific needs of users, such as low-temperature, bidirectional, downhole, sand mixing, etc; 7. Can be made into an insertion type, suitable for measuring large diameters, with low pressure loss, low price, can be removed without interruption, and easy installation and maintenance.

3、 Basic parameters and technical performance

1.Technical performance: Table 1

2.Measurement range and working pressure: Table 2

4、 Instrument selection:Table 3

Note: DN15 to DN40 are usually threaded connections. If you wish to use flange connections, please add "(FL)" after "nominal diameter"
For example, choosing a flange connection typeNon explosion proof turbine flowmeterTo measure water, a 4-20mA signal output is required. The pipeline is DN40 and requires an accuracy level of 0.5. The instrument is made of 304 stainless steel and has a pressure resistance of 16MPa. The measurement range is the standard range, and the product model should be LWGY-40 (FL) A/05/S/S/N/H16