How to choose the material of electromagnetic flowmeter?

1. Selection of electrode raw materials Usually electrode raw materials are divided into the following types: 1. Stainless steel (0Cr18Ni12Mo2Ti). Suitable for nitric acid, sulfuric acid less than 5% at room temperature, heated phosphoric acid, formic acid, alkali solution, sulfurous acid, seawater and acetic acid under certain pressure. 2. Hastelloy B, Hastelloy C. Can be used in sea water and salt water. 3. Titanium. Suitable for seawater, various chlorides and hypochlorite hydrochloric acid, oxidizing acids (including fuming nitric acid), organic acids, alkali, etc. 4. Tantalum. Other chemical media besides fuming sulfuric acid and alkali, including boiling point hydrochloric acid, nitric acid and <175°C sulfuric acid, can be used. 5. Platinum. Can be used for various acids, alkalis, and salts, but does not include aqua regia. 2. Selection of fabric materials Another important material selection for electromagnetic flow meters is: how to choose lining materials. It must be noted that the lining material should be selected based on the corrosiveness, abrasion and temperature of the medium being measured. 1. Rubber. It has excellent elasticity, high tearing force, good wear resistance, and is resistant to corrosion by ordinary weak acids and weak alkali. It can measure water, sewage, mud and mineral slurry, etc. 2. Polyurethane. It has excellent wear resistance, poor acid and alkali resistance, and can measure coal slurry, mud and mineral slurry with neutral and strong wear. 3. Polytetrafluoroethylene. It is resistant to hydrochloric acid, sulfuric acid, nitric acid, aqua regia, concentrated alkali and various organic solvents. It has good wear resistance but poor bonding performance. The above is how to choose the material of electromagnetic flowmeter brought to you by the editor this time. I hope it will be helpful to you. We look forward to serving you.