Electromagnetic flowmeter is a volume flow measuring instrument. During the measurement process, it is not affected by the temperature, viscosity, density and conductivity of the measured medium. Electromagnetic flowmeter can be used to measure the flow of other conductive liquids only after water calibration. E + H electromagnetic flowmeter has no mechanical inertia and is sensitive in response. It can measure instantaneous pulsating flow and flow in both positive and negative directions.

The correct selection of the lining material of the electromagnetic flowmeter plays a key role in the production quality of the entire equipment. The relative performance of the lining material is also very different. Let's learn about it together.

The lining material should be selected according to the corrosiveness, abrasion and temperature of the measured medium:

1. natural rubber (soft rubber)

1, better elasticity, wear resistance and tear force

2, resistance to general weak acid, weak alkali corrosion

3. Water measurement and sewage

2. acid-resistant rubber (hard rubber)

can resist the corrosion of hydrochloric acid, acetic acid, oxalic acid, ammonia, phosphoric acid and 50% sulfuric acid, sodium hydroxide and potassium hydroxide at room temperature, but not the corrosion of strong oxidants

general acid, alkali, salt solution

3. neoprene

1, excellent elasticity, high breaking force, good wear resistance

2, resistance to the general low concentration of acid and alkali, salt solution corrosion, but not resistant to oxidizing medium corrosion

measurement of water, sewage, mud and slurry

4. polyurethane

1, excellent wear resistance

2. Poor acid and alkali resistance

measurement of neutral and strongly worn coal slurries, slurries and slurries

5. Polytetrafluoroethylene (PTFE)

1, resistance to boiling hydrochloric acid, sulfuric acid, nitric acid, aqua regia, concentrated alkali and various organic solvents

2, good wear resistance, poor bonding performance

Concentration measurement, concentrated alkali and strong corrosive solution and sanitary medium

6.

-20…+150°C (-4…+302 °F):PFA lining, DN 25… 200 (1… 8 ")

-20…+180°C (-4…+356 °F): High-temperature PFA lining, DN 25… 200 (1… 8 ")

-40…+130°C (-40…+266 °F):PTFE lined (chemical),DN 15… 600 (… 24 ")

-40…+90°C (-40…+266 °F):PTFE lined (regular water treatment),DN 25… 600 (1… 24 ")

0... +80°C (+32... +176 °F): Hard rubber lining, DN 50...2000 (2...78 ")

-20... +50 c (-4... +122 °F): Polyurethane lining, DN 25...1200 (1...48 ")