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The digital flowmeter is based on a brand-new design concept that integrates temperature, pressure, and flow signals. The three signals are mixed and processed by an intelligent digital processor to output a compensated standard flow rate, thus realizing the control of gas and steam. Temperature and pressure compensation function. Due to the intelligent integrated design concept, the LUGB digital flowmeter has the characteristics of compact structure and convenient installation, use and maintenance.
Selection of Electrode Material for Electromagnetic Flowmeter:


Material Corrosion resistance
316L has strong corrosion resistance to nitric acid, sulfuric acid <5% at room temperature, boiling phosphoric acid, alkali solution; sulfurous acid, sea water, acetic acid and other media under certain pressure.
Hastelloy HB is resistant to non-oxidizing acids, alkalis, and non-chlorinated hydrochloric acid, such as hydrochloric acid, sulfuric acid, hydrofluoric acid, and organic acids in all concentrations below the boiling point.
Hastelloy HC is resistant to oxidizing acids such as: nitric acid, mixed acid or a mixture of chromic acid and sulfuric acid and oxidizing salts, seawater
Titanium can withstand the corrosion of seawater, various chlorides and hypochlorites, oxidizing acids (including fuming nitric acid), organic acids, alkalis, etc., and is not resistant to the corrosion of relatively pure reducing acids (sulfuric acid, hydrochloric acid), but if When the acid contains an oxidant (such as nitric acid and a medium containing Fe and Cu ions), the corrosion is greatly reduced.
Tantalum has excellent corrosion resistance and is similar to glass. Except for hydrofluoric acid and concentrated sulfuric acid, it is resistant to almost all chemical media (including boiling point hydrochloric acid, nitric acid and sulfuric acid below 175°C). It is not resistant to corrosion in alkali. .

Selection of electromagnetic flowmeter lining:


Lining material Main performance Applicable scope
Neoprene
Neoprene has good abrasion resistance, excellent elasticity, high tearing strength, resistance to corrosion of low-concentration acid-base salt media, and no resistance to corrosion of oxidizing media. <80°C, general water, sewage, mud, mineral slurry
Polyurethane rubber
Polyurethane has excellent abrasion resistance and slightly poor acid and alkali resistance. <60°C, neutral, strong abrasion slurry, coal slurry, mud.
PTFE
PTFE is a material with stable chemical properties that can withstand boiling hydrochloric acid, sulfuric acid, nitric acid and aqua regia, concentrated alkali and various organic solvents, and is not resistant to chlorine trifluoride and high temperature oxygen difluoride. <180°C, strong corrosive medium such as concentrated acid and alkali, sanitary medium.
F46 is similar to PTFE in chemical stability, electrical insulation, lubricity, non-stick and non-combustibility, but F46 material strength, aging resistance, temperature resistance and low temperature flexibility are better than PTFE. Good adhesion to metal, better abrasion resistance than PTFE, with better
The tear resistance performance. <180°C, hydrochloric acid, sulfuric acid, aqua regia and strong oxidant, etc., sanitary medium