Balanced flow meter Description: 

 SD-P balance flowmeter is the third generation of the throttling device, the measurement accuracy of this flowmeter is 5 to 10 times the traditional throttling device, flow noise reduced to 1/15, the permanent pressure loss is about 1/3, the pressure recovery almost 2 times the minimum straight pipe can be as small as 0.5D, with no moving parts, installation and use of very simple, eliminating the need for through-pipe, greatly reducing the energy consumption of the fluid needed to run a broad application prospects energy-saving instruments, can be applied to gas, liquid, gas-liquid two-phase, liquid gas, two-way flow of dirty media, slurry measurement. 
 The balanced flow meter characteristics: 
 A measurement accuracy 
 Balance the flow sensor has the characteristics of the porous structure, able to balance the flow field to reduce eddy current, vibration, and signal to noise flow field stability greatly increase the table body with special precision pipes and special pressure device, and accuracy than traditional throttling device enhanced by 5-10 times. 
 The actual flow calibration, the sensor accuracy up to ± 0.3% ± 0.5% for trade measurement occasions. 
 Geometric dimensional inspection, sensor accuracy up to ± 0.5% ± 1.0% for process control applications. 
 The balanced flow meter processing high reproducibility, with traditional throttling device, and test of the geometric dimensions on the actual flow calibration data base can be achieved. 
 (2) of straight pipe that require low 
 Balance the flow sensor can flow field balance stable, adjust the pressure recovery is twice as fast than the traditional throttling device, greatly reducing the requirements for straight pipe. In most cases BARS pipe sections can be as small as 0.5D ~ 2D, especially for special or expensive pipeline to balance the flow meter can save a lot of straight pipe. 
 (3) low permanent pressure loss 
 Balance the symmetry of the flow meter balanced design to reduce the vortex formation and turbulent friction, reducing the loss of kinetic energy in the same conditions, compared with the traditional throttling device, the pressure loss is less 70%, close to the Venturi tube , thus saving considerable operating costs, it is worth a lot of promotion. 
 (4) range than the width 
 Compared with the traditional throttling device, the balanced flow meter greatly improve the measurement range. Results show, select the appropriate aperture parameters, the Reynolds number greater than 50000, balanced flow meter no upper limit, according to industrial measurement needs of the practical application of conventional measuring range ratio is 10:1, select the appropriate parameters Road, 30:1 or higher. 
 (5) repeatability and long-term stability 
 Balance the flow sensor can flow balance and stability, so that repetitive greatly improve, you can reach ± ??0.1%. 
 The balanced flow meter circulation holes dispersed by force, without an acute angle to wear the β value of long-term remains unchanged, the long-term stability is very good; the entire instrument with no moving parts, extended service life than conventional throttling device 5-10 times. 
 Resistant to dirt should not be blocking 
 Porous symmetrical balanced design to reduce the formation of the turbulent shear stress and eddy current, and thus greatly reduce the formation of dead zones, to ensure that the dirty media smoothly through multiple holes, reducing the fluid hole is blocked. 
 7 wide measuring range 
 According to the experimental results, we know: the performance of the balanced flow meter, so that the flow rate from the smallest to the speed of sound, the minimum Reynolds number less than 200, the maximum Reynolds number greater than 107; optional 0.25 ~ beta value of 0.9. 
 8 Scope of application 
 The balanced flow meter temperature, pressure depends on the material and grade of the pipe and flange, the maximum operating temperature of 850 ° C, 42MPa. 
 Suitable for very low temperature fluid of LNG, liquid air, liquid nitrogen, liquid oxygen, liquid argon, liquefied ethylene, hydrogen, liquid chlorine, etc., can effectively prevent the gasification, the measurement is best. 
 The balanced flow meter can measure the vapor-liquid two-phase, slurry, and even the measurement of solid particles that can measure two-way flow. 
 The balanced flow meter or so completely symmetrical, so you can easily measure two-way flow. 
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