The electromagnetic flowmeter is a kind of measuring instrument based on Faraday law of electromagnetic induction, which can measure the volume flow of electrically conductive liquid, seriflux and so on. It is widely used in industrial sectors such as chemical industry, environmental protection, metallurgy, pharmaceutical, paper making, water supply and removal etc. such as clear water, sewage, acid, alkali, slurry, beer, milk, food grade liquid, salt solution, liquid.
Features:
Highly intelligentized
Multi-electrode structure
High accuracy
No moving parts
Wide operating range
AC.85V~265V, DC:18V38V
No obstruction to the flow
Variety of flange types availiable
Different excitation frequencies to choose
Able to detect two-way
Capacitive empty and full pipe measurement technique
Lighting protection and anti-jamming circuit design
Domestic water, industrial water, raw water, city sewage, weak corrosion of acid, alkali, salt solution
Strong acid, alkali etc
Hastelloy alloy B
Concentration is less than 10% of non oxidizing acid, concentration of less than 50% sodium hydroxide, and concentrations of ammonium hydroxide alkaline solution; phosphoric acid and organic acid
Nitric acid
Hastelloy C
Mixed acid (such as chromic acid and sulfuric acid solution); oxidizing salts (such as seawater, including Cu+++, Fe+++)
Hydrochloric acid
Titanium
Salts (such as sodium, potassium, chloride, ammonium salts, sodium bicarbonate, slit water), concentration of less than 50% potassium hydroxide, ammonium hydroxide, barium hydroxide alkaline solution
Hydrochloric acid, sulfuric acid, phosphoric acid, hydrofluoric acid and other reductive acid
Tantalum
Hydrochloric acid (concentrations of less than 40%), dilute sulfuric acid and concentrated sulfuric acid (not including oleum); chlorine dioxide, ferric chloride, hypochlorous acid, sodium chloride, lead acetate; nitric acid (including fuming nitric acid, an oxidizing acid)
Alkali, hydrofluoric acid
Platinum gold
Almost all of the sour alkali salt solution (including fuming sulfuric acid and fuming nitric acid)
Aqua regia, ammonium salt
HOW TO CHOOSE THE LINING MATERIAL
According to the measured medium corrosion, wear and temperature, select lining material, as shown in the following table:
Lining
Symbol
Performance
Temperature
Usage occasions
Rubber
CR
Wear resistance of medium, high average concentrations of acid-base salt solution
≤70°C
Tap water, industrial water, sea water
PTFE
PTFE
The chemical properties of stability, high boiling hydrochloric acid, sulfuric acid, aqua regia, concentrated alkali corrosion
≤150°C
Corrosive acid, salt, solution
Fluorinated ethylene propylene
F46 or FEP
Chemical properties equivalent to F4, tensile strength is higher than that of F4
≤180°C
Corrosive acid salt solution, negative pressure
Polyurethane
PU
Excellent wear resistance. Not suitable for resistance to acid
