Roots Flow Meter With Mechanical Head

Product Description

Series FR roots flow meter is a kind of high accuracy positive displacement flow meter manufactured by our factory introduced Japanese TOKICO.

FR type roots flow meter is composed of metering part and counting part. Basic type of roots flow meter can indicate local cumulative flow, if mate with photoelectric flow converter and intelligent flow controller, it can achieve remote measurement and control. It has the features of high accuracy, good reliability, light weight, long life time, easy installation and usage, and is widely used for accurate metering of petroleum products and chemical solutions etc. in such industries as petroleum , chemical, power, metallurgy, traffic, food processing, medicine, national defense, commerce, trade, etc.

Working Principle

When the liquid measured flows through the metering chamber, a differential pressure is formed between the inlet and outlet of flow meter, which drives rotors rotate(see figure a, b, c and d). Meanwhile, a pair of driving gears coupled to the rotor shaft makes two rotors keep rotate continuously. The measuring chamber is made up of “2 cups”, one rotation of rotors will send “4 cups” capacity liquid, so rotors rotation number direct proportion to measured liquid flow, counter and pointer is driven to rotate by reduction unit, thus enabling the measurement of fluid that passes through the meter.

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