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Electromagnetic flowmeter selection
Mar 21, 2018

1. The medium is corrosive, acidic and alkaline, generally neutral, the electrode: 316L, if it is alkaline, it is basically used: 316L, but the alkaline is too strong and the titanium electrode is generally used, and the acid is generally used: , Ha B, Strontium electrode, Platinum electrode.

Generally corrosive liquid linings are selected PTFE, there are F46, generally do not have, no corrosive rubber on the election, but generally less than DN65 caliber, generally selected polytetrafluoroethylene, the same price, generally a granular liquid polyurethane Wear-resistant.

2. The flow meter diameter is generally based on the flow rate to select the caliber, and the electromagnetic flow meter is generally based on the pipe to select the flow meter diameter, because the general liquid flow rate: 1.5 ~ 3m / S, while the electromagnetic flow meter can measure the range: 1 ~ 10m3 /H, of course: 0.5~10m3/H, can also be measured, but the precision is almost written in the book: 0.1~15m3/H.

Magnetic flowmeter flow ratio: 1:100.

3. Conductivity is generally greater than 20us/cm, written on the book is greater than: 5us/cm. General acid, alkali, salt solution, tap water, pulp, mud, minerals, etc. are conductive, pure water, distilled water (low), organic and other non-conductive .


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