Electromagnetic flowmeter electrode adaptable medium

Electromagnetic flowmeters have the characteristics of low cost and complete functions in industrial production. When selecting an electromagnetic flowmeter, it is crucial to consider the corresponding electrode configuration for different media. The following is a reference for commonly used dielectric corresponding electrode materials. Avoid the impact of material selection on the flow meter. 1 Stainless steel 0Crl8Nil2M02Ti (stainless steel 316L): used for weakly corrosive media such as industrial water, domestic water, sewage, etc., suitable for industrial sectors such as petroleum, chemical industry, steel, and municipal, environmental protection and other fields.

2 Hastelloy B: It has good corrosion resistance to hydrochloric acid of all concentrations below the boiling point, and is also resistant to non-chlorinating acids and alkalis such as sulfuric acid, phosphoric acid, and organic acids, and non-oxidizing salt liquids. of corrosion.

3 Hastelloy C: Resistant to corrosion by non-oxidizing acids, such as nitric acid, mixed acid, or mixed media of chromic acid and sulfuric acid, and also resistant to oxidizing salts such as: Fe, ",, Cu" Corrosion under conditions or containing other oxidants, such as hypochlorite solution above normal temperature, seawater corrosion, titanium can withstand seawater, various chlorides and hypochlorites, oxidizing acids (including fuming sulfuric acid), organic acids, alkali of corrosion. It is not resistant to corrosion by relatively pure reducing acids (such as sulfuric acid, hydrochloric acid), but if the acid contains oxidants (such as nitric acid, Fc++, Cu++), the corrosion is greatly reduced.

4 Tantalum: It has excellent corrosion resistance and is very similar to glass.

5 Platinum/Titanium Alloy: Almost resistant to all chemical media, but not suitable for aqua regia and ammonium salts. Stainless steel coated with tungsten carbide For use in non-corrosive, highly abrasive media.