Water measuring electromagnetic flowmeter price

We know that electromagnetic flowmeters are often used to measure aqueous solutions in industrial production processes. Therefore, people often ask about the price of electromagnetic flowmeters for water measurement. Before answering the price of water measurement flowmeters, we must first understand the aqueous solution to be measured. The selection of the lining of the electromagnetic flowmeter is also different, and the price of the electromagnetic flowmeter for water measurement is naturally different. (1) The correct selection method of the lining material of the electromagnetic flowmeter should be based on the corrosiveness, abrasion and temperature of the measured medium. Tearing force 2, resistance to general weak acid and weak alkali corrosion 3, water test, sewage 2, acid-resistant rubber (hard rubber) 　　 can withstand hydrochloric acid, acetic acid, oxalic acid, ammonia, phosphoric acid and 50% sulfuric acid, hydroxide at room temperature Corrosion of sodium and potassium hydroxide, but not resistant to the corrosion of strong oxidants. Test general acid, alkali, salt solution 3. Neoprene (Neoprene)　　 1. Excellent elasticity, high tearing force, good wear resistance 2 、Resistant to the corrosion of low-concentration acid-base and salt solutions, but not resistant to the corrosion of oxidizing media <80℃; 　　 test water, sewage, mud and ore pulp 4. Polyurethane (Polyurethane) 　　 1. Excellent wear resistance Performance 2. Poor acid and alkali resistance <40℃　　 test neutral and strong abrasion coal slurry, mud and ore slurry 5. Polytetrafluoroethylene (PTFE)　　1, boiling resistant hydrochloric acid, sulfuric acid, nitric acid, aqua regia, concentrated alkali and various Kind of organic solvent 2. Good abrasion resistance, poor bonding performance -80～+180℃; 　　 measures concentration, strong alkali, strong corrosive solution and sanitary medium (2) The caliber of electromagnetic flowmeter is selected The same caliber of the piping system. If the share channel system needs to be designed, the caliber can be selected according to the flow mother range and flow rate. For the electromagnetic flowmeter, the flow velocity is more suitable to be 2-4m/s. In special circumstances. If there are solid particles in the liquid, taking into account the abrasion, the usual flow rate ≤ 3m/s can be selected. For the fluid that is easy to attach to the pipe wall, the flow rate ≤ 2m/s can be selected. To determine the diameter of the transmitter.　　The range of the transmitter can be selected according to two principles: one is that the full scale of the instrument is greater than the expected maximum flow value, and the other is that the normal flow value is greater than 50% of the full scale of the instrument to ensure a certain measurement accuracy. (3) Preliminary selection (1) Determine whether to use an electromagnetic flowmeter (determined by the salesperson) according to the name and nature of the measured medium. 　　 Note: The electromagnetic flowmeter can only measure the flow of conductive liquid, but gas, oil The most common and most organic liquids are not in the case of general conductive liquids. (2) Determine the electrode material according to the learned properties of the substrate. Pay attention; the company generally provides stainless steel, Hastelloy, titanium and tantalum electrodes. Which electrode should be used? Check the relevant information manual according to the nature of the medium (2) Determine whether to use rubber or tetrafluoroethylene lining according to the learned medium temperature (determined by the salesperson) 　　 Note: The temperature resistance of rubber should not exceed 80C; 　　 PTFE temperature resistance is 150C, and it can withstand 180C instantly; Urban sewage generally can use rubber lining and stainless steel electrodes (3) According to the learned medium pressure, choose the flange specification of the meter body (determined by the salesperson) 　　 Note: The electromagnetic flange specification is usually when the diameter is DN10-250, Flange rated pressure ≤ 1.6Mpa; 　　 when the caliber is DN250-1000, the flange rated pressure ≤ 1.0Mpa; 　　 when the actual pressure of the medium is higher than the above-mentioned pipe diameter-pressure corresponding range, it is a special order, but the maximum pressure shall not exceed 6.4Mpa　　( 4) Determine the conductivity of the medium. Note: (1) The conductivity of the electromagnetic flowmeter should not be lower than 5uS/cm　　 (2) The conductivity of tap water is about tens to hundreds of uS/cm. Generally, the boiler soft water (deionized water) ) Electrical conductivity, pure water (highly distilled water) does not conduct electricity (3) The electrical conductivity of gases, oils and most organic liquids is much lower than 5uS/cm and does not conduct electricity. After reading the description of the appeal, I believe you have a general understanding of the selection of electromagnetic flowmeters. Of course, you want to better understand the price of electromagnetic flowmeters for water measurement. The best way is to contact the manufacturer directly and inform the working conditions. Let professional engineers select and quote for you.
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