Corrosion resistant electromagnetic flowmeter

『Corrosion resistant electromagnetic flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

1. Electric contact bimetallic thermometer

2. Selection reference for electromagnetic flowmeter electrodes under different fluid media

The selection of electromagnetic flowmeter electrodes should be based on the corrosiveness, wear resistance, and working conditions of the fluid medium. Common electrode materials and applicable scenarios are as follows

1. 316L stainless steel electrodes are suitable for slightly corrosive media such as water, sewage, inorganic acids (such as dilute sulfuric acid and phosphoric acid), and organic acids (such as acetic acid). Features: Low cost, strong resistance to uniform corrosion. Not suitable for working conditions with chloride ions (such as seawater) or strong oxidizing acids. Typical scenarios: Measurement of clean water or weakly corrosive liquids in municipal water supply, sewage treatment, and general chemical processes

2. Suitable media for Hastelloy B (HB) electrodes: all concentrations of non oxidizing acids such as hydrochloric acid (below boiling point), sulfuric acid, phosphoric acid, hydrofluoric acid, etc. Alkali solution, non oxidizing salt solution (such as sodium chloride solution). Characteristics: It has strong corrosion resistance to non oxidizing media, but is not suitable for media containing oxidants (such as nitric acid). Typical scenarios: Hydrochloric acid production, hydrometallurgy (such as gold leaching), hydrochloric acid transportation in chlor alkali industry

3. Hastelloy C (HC) electrode suitable medium: oxidizing acid: nitric acid, mixed acid (such as aqua regia), chromic acid and sulfuric acid mixture. Oxidizing salts: containing Fe3? 、 Cu2? Solution, high-temperature hypochlorite solution, seawater. Characteristi

4. Titanium (Ti) electrode suitable media: seawater, chloride solution, hypochlorite, oxidizing acid (such as fuming nitric acid). Organic acids and alkaline solutions. Limitation: Not resistant to pure reducing acids (such as concentrated sulfuric acid, hydrochloric acid), but if the acid contains oxidants (such as nitric acid), the corrosion resistance decreases. Typical scenarios: seawater desalination, chlor alkali industry, paper industry (chlorine bleach)

5. Tantalum (Ta) electrode is suitable for almost all chemical media except hydrofluoric acid, fuming sulfuric acid, fuming nitric acid, and strong alkali. The package contains hydrochloric acid, nitric acid, and sulfuric acid at boiling points. Limitations: Not resistant to strong alkalis (such as sodium hydroxide) and fluorine-containing media (such as hydrofluoric acid). Typical scenarios: Measurement of highly corrosive media in the chemical industry (such as sulfuric acid production), high-purity acid solutions in the pharmaceutical industry

6. Platinum iridium alloy electrodes are suitable for almost all chemical substances (except aqua regia and ammonium salts). Characteristics: Extremely corrosion-resistant, but high cost, usually used for extreme working conditions. Typical scenarios: high-precision measurement in the laboratory, ultra pure water monitoring in the semiconductor industry, special chemical processes

7. Tungsten carbide (WC) electrode Applicable m

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