What is the approximate price of a small flow gear flowmeter | dual rotor flowmeter? | Guangyuan Ultrasonic Flow Meter Manufacturer

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1. What flowmeter is good for slow liquid flow rate? When the liquid flow rate is slow, it is preferred to choose elliptical gear flowmeter, electromagnetic flowmeter or Coriolis mass flowmeter that are sensitive to low flow rate. 1. The elliptical gear flowmeter measures flow rate by a fixed volume driven by liquid to rotate the elliptical gear, with high accuracy (± 0.5%~1%) and minimal viscosity impact. Suitable for high viscosity fluids such as crude oil and Mu Lu lubricating oil, and can maintain accurate measurement even in low flow rate environments. two The electromagnetic flowmeter measures flow velocity based on the principle of generating electromotive force by cutting magnetic induction lines with conductive liquid, with minimal pressure loss and the ability to capture extremely low flow velocities (such as below 0.1m/s). Conductive liquids such as acid, alkali, and salt solutions are commonly used in this type and are widely used in the chemical and water treatment industries. three The Coriolis mass flowmeter utilizes the Coriolis effect generated by fluid vibration to directly measure mass flow rate, with the highest accuracy and no interference from temperature and density. Low flow rate scenarios with strict requirements such as pharmaceuticals and food processing are preferred, but there are high requirements for installation location and liquid cleanliness.

2. Structure of Positive Displacement Flow Meter

In order to meet the requirements of various media and working conditions for flow measurement in production, various types of positive displacement flow meters have been developed. Among them, the more common types are gear type, scraper type, and rotary piston type, which are intr

oduced as follows. 1. Gear type positive displacement flow meter has two rotors inside the housing, which directly or indirectly mesh with each other and rotate under the pressure difference between the inlet and outlet of the flow meter. Through the rotation of the gears, the fluid filled in the "measuring space" between the gears and the housing is continuously discharged. By measuring the number of gear rotations, the fluid volume passing through the flow meter can be obtained. Figure 1 The display shows an elliptical gear type volumetric flowmeter (also known as an Obal volumetric flowmeter) The schematic diagram of the elliptical gear flowmeter in Figure 1 shows that the flowmeter works by two elliptical gears meshing with each other. The working process is briefly described as follows: P1 in the figure represents the inlet fluid pressure of the flowmeter; Indicating the outlet fluid pressure, it is evident that the pressure P1 is greater than P2. In Figure 1 (a), although the lower travel mold surface rotor is disassembled and slowly subjected to the pressure difference of the fluid, it does not generate rotational torque, while the upper gear generates rotational torque and rotates under the differential pressure of two examples. Due to the meshing of the two gears, they rotate in the direction of the arrow around O1 and O2 as the axis, and at the same time, gear O1 discharges the fluid in the half moon shaped measuring space to the outlet. In the state of Figure 1 (a), the upper gear is the driving wheel and the lower gear is the driven wheel. In the position of Figure 1 (b), both gears generate rotational torque under the differential pressure of the fluid and rotate in the direction of the arrow under this torq

What is the approximate price of a small flow gear flowmeter | dual rotor flowmeter?

2. Structure of Positive Displacement Flow Meter

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