Roots Wheel PD Flow Meter Working Principle
In the measuring chamber, the roots wheels are continuously rotated by the pressure difference in the inlet and outlet of the meter driven by a couple of driving gears fixed on the shafts.
And drive the inlet liquid through the cavity to the outlet, each revolution of the roots wheels displaces fluid four times the volume of the cavity.
The total revolutions of the roots wheels will be transferred to the mechanical counter, which can indicate the total liquid volume and instantaneous flow.
Matched pulse transmitter the roots meter can realize remote integrated flow, batch and instantaneous flow measuring and control with electrical indicator or computer system.
Roots Wheel PD Flow Meter Vs. Oval Gear Flow Meter
The main difference between the Roots Wheel PD Flow Meter and the Oval Gear Flow Meter is the measurement gear.
First of all, there are obvious differences in appearance between the oval gear flow meter and the Roots Wheel PD Flow Meter.
Secondly, when using the Roots Wheel PD Flow Meter, the two gears are stuck together. Therefore, the noise generated is not as loud as the noise generated by the two gears of the oval gear flowmeter meshing together.
Finally, regarding the two flow meters of the same caliber, the flow range of the Roots Wheel PD Flow Meter is larger than that of the oval gear flow meter.
Although the two flowmeters have many differences, they both tend to measure media with higher viscosity. It is especially suitable for measuring self-lubricating media. And it is best not to contain solid impurities in the medium. Otherwise, the gears will be worn or even damaged.
In short, the oval gear flow meter and the Roots Wheel PD Flow Meter have a lot in common, but they are also very different. Therefore, you must understand the similarities and differences between these two flow meters when purchasing.
