How to choose the material of electromagnetic flow meter correctly

Abstract: How to correctly choose the material information of the electromagnetic flowmeter is provided by the excellent flowmeter and flowmeter manufacturers. How to correctly choose the material of electromagnetic flowmeter As a commonly used flow measuring instrument, the selection of its material is also an important factor. Because in the electromagnetic flowmeter, only the electrode and the inside of the measuring tube are in contact with the medium. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details on how to correctly choose the material of the electromagnetic flowmeter. How to choose the material of the electromagnetic flowmeter correctly As a common flow measuring instrument, the choice of its material is also an important factor. Since in the electromagnetic flowmeter, only the electrode and the inside of the measuring tube are in contact with the medium, it is necessary to select the correct electrode and lining material according to the characteristics of different mediums. 1. Selection of electrode materials Generally, electrode materials are divided into the following categories: 1. Stainless steel (0Cr18Ni12Mo2Ti). Suitable for nitric acid, sulfuric acid less than 5% at room temperature, boiling phosphoric acid, formic acid, alkali solution, sulfurous acid, seawater, acetic acid under certain pressure. 2. Hastelloy B, Hastelloy C. Can be used for sea water and salt water. 3. Titanium. Suitable for seawater, various chloride and hypochlorite hydrochloric acid, oxidizing acids (including fuming nitric acid), organic acids, alkalis, etc. 4. Tantalum. Other chemical media except hydrofluoric acid, fuming sulfuric acid and alkali, including boiling point hydrochloric acid, nitric acid and <175℃ sulfuric acid can be used. 5. Platinum. Can be used for various acids, bases, salts, but not including aqua regia. Second, on the selection of lining material Another important material selection for electromagnetic flowmeters is: how to accurately select the lining material. It must be noted that the lining material should be selected according to the aggressiveness, abrasiveness and temperature of the medium being measured. 1. Rubber. It has excellent elasticity, high breaking force, good wear resistance, resistance to general weak acid and weak alkali erosion, and can measure water, sewage, mud and ore pulp, etc. 2. Polyurethane. It has excellent wear resistance, poor acid and alkali resistance, and can measure coal slurry, mud and ore slurry with neutral and strong wear. 3. Polytetrafluoroethylene. Resistant to boiling hydrochloric acid, sulfuric acid, nitric acid, aqua regia, concentrated alkali and various organic solvents, with good wear resistance and poor adhesion. The above is about the selection of electromagnetic flowmeter materials. Different media have different characteristics. It is not necessary to choose the most expensive one. Choosing the right one is economical and durable. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'How to choose the material of electromagnetic flow meter correctly'

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