In the industrial production process, many media are slightly or strong corrosive. We need to measure the flow rate of these aggressive fluids. How to choose the flow instrumentation for measuring corrosive media? Commonly used corrosive medium flowmeters include electromagnetic flowmeters, rotameters, and so on.
Magnetic flowmeter for measuring corrosive media
Mag flowmeters can be selected with PTFE lining or PFA lining. The Teflon and PFA linings are very resistant to corrosion. The electrode materials can be selected from hastelloy alloy, platinum rhodium, Tan ,titanium, etc. These metals can meet most corrosive properties. Mag flow meter
can take flow measurement of hydrochloric acid, sulfuric acid, hydrofluoric acid, chlorine water, hydrogen peroxide, caustic soda, etc. The flowmeter housing can be selected from stainless steel 304 or 316 to accommodate flow measurements in corrosive environments.
Electromagnetic flowmeter advantages:
✔ In-line volumetric flowmeter
✔ Suitable selection of mag flow sensor lining and electrode materials for aggressive liquid measurement
✔ There is no obstruction in the measuring pipe, so there is no additional pressure loss
✔ There are no moving parts in the measuring pipe, so the sensor has a very long life
✔ Can be used as slurry flowmeter
✔ Bi-directional measurement system for measuring forward flow and reverse flow
✔ Electronic flow meter with current output, pulse output, digital communication, HART,Profibus-DP
✔ Digital flow meter for acid or alkali flow measurement
✔ The measurement accuracy is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity. accuracy is high.
Rotameter to measure corrosive liquids
The metal tube rotor is a traditional flow measuring device, which is kind of variable area flow meter; we provide a PTFE-lined rotameter that can measure corrosive liquids. The rotameter can be an analog flowmeter, showing the instantaneous flow of the pipe without any power supply. We also have a rotor flowmeter with a transmitter
that not only displays the instantaneous flow of corrosive media, but also shows the cumulative total. This kind of rotameter also has 4-20mA, pulse, Hart, Modbus, etc.