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How to choose electromagnetic flowmeter correctly
How to choose the electromagnetic flowmeter correctly, in the usual industrial waste water, sewage treatment mode people will be based on different working conditions, to choose the appropriate electromagnetic flowmeter.Electromagnetic flowmeter how to choose type is the door essential method, grasp this method can help people reduce some inconvenience.
How to choose electromagnetic flowmeter correctly
I. selection of relevant electrical grade materials general electrical grade materials are divided into the following categories:
1, applicable to nitric acid, room temperature less than 5% of the hydrochloric acid, boiling ammonium sulfate, formic acid, alkali solution, certain working pressure of sulfurous acid, sea surface, glacial acetic acid.
2. Haselloy B and haselloy C.Can be used as sea water, salt water.
3, titanium.Suitable for sea surface, various compounds and secondary sulfuric acid, amphoteric oxide (including fuming nitric acid), citric acid, alkali, etc.
4, tantalum.In addition to fuming sulfuric acid and alkali other organic chemical media, including melting point of sulfuric acid, sodium cyanide and < 175℃ hydrochloric acid can be used.
5, platinum.Can be used as a variety of acids, alkali, salt, but does not contain royal water.
Two, about the lining material choice of electromagnetic flowmeter in addition to a key material choice that is: how to accurately select lining raw materials.It is important to note that the lining material should be selected according to the adhesion, abrasion and temperature of the medium under test.
1. Rubber.It has good ductility, high aspect ratio tensile force, good abrasion resistance and general weak acid and alkaline corrosion resistance. It can measure water, waste water, drilling mud and slurry, etc.
2. Polyurethane.It has good abrasion resistance, poor acid and alkali resistance, and can measure coal slurry, drilling mud and pulp with strong neutral damage.
3. Polytetrafluoroethylene.Resistance to boiling sulfuric acid, sulfuric acid, nitric acid, aqua, concentrated alkali and various solvents, good resistance to wear, weak adhesion.
About is the choice of material of relevant electromagnetic flowmeter, different medium has different characteristics, do not have to choose expensive, choose suitable is economic development durable.
Shanghai porcelain city instrument co., LTD. Is the world's leading instrument manufacturer, because of the excellent quality, with a good reputation quickly occupied the market, in the hearts of many customers, porcelain city is the synonym for the flow meter.Our goal is to provide high quality flow meters and excellent solutions for your engineering applications.
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