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technical article
Selection of electrode material for electromagnetic flowmeter
2011-3-9 9:54:09

Correct selection of electrode material for electromagnetic flowmeter

The material of the electrode should be selected according to the corrosivity of the liquid being tested, and tests should be performed on special fluids.

1.Titanium (Ti)

Sea water, various chlorides and hypochlorite hydrochloric acid, oxidizing acids (including fuming nitric acid), organic acids, alkalis.

2.Tantalum (Ta)

Except for hydrofluoric acid, fuming sulfuric acid, and alkali, other chemical media include boiling point hydrochloric acid, nitric acid, and <175 ° C sulfuric acid.

3.Molybdenum-containing stainless steel (0Cr18Ni12Mo2Ti)

Nitric acid, sulfuric acid <5% at room temperature, boiling phosphoric acid, formic acid, alkaline solution, sulfurous acid, sea water, acetic acid under a certain pressure.

4. Hastelloy C

Hastelloy B (HC, HB)

Sea water, salt water.

5. Platinum (Pt)

Various acids, bases and salts.