Metal tube Variable Area Flow Meter or rotameter is a kind of antique and reliable gas or liquid measurement instrument. China rotameter flow meter manufacture can design and produce different kinds variable are flow meter ( VA flow meter ), such as high temperature type, high pressure type ,rotameter with transmitter,corrosive media or high viscosity type.
For the normal temperature for standard configuration variable area flow meter, it cam max withstand temperature -80~200℃ (-112°F~ 392°F)
For
high temperature type rotameter , it can max withstand 300 ℃ (572°F)
For acid or aggrieve fluids measurement , we often lined PTFE (Teflon) , the max temperature is can work is 0~85℃ (32~185°F)