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1 There is no obstruction in the measuring tube, so there is no additional pressure loss, ie no additional head loss for tap water measurement.
2 The flow rate of the fluid in the forward and reverse directions can be measured.
3 Because the measurement results are independent of physical parameters such as pressure, temperature and conductivity of the liquid, the measurement accuracy is high and the work is reliable.
4 Only the pipe and the electrode are in contact with the liquid to be tested. Therefore, as long as the electrode material is properly selected, corrosion resistance and wear resistance can be achieved. It has the characteristics of long service life and low maintenance requirements.
5 The output signal mode is flexible. There are pulses, currents, frequencies, etc.
Intelligent electromagnetic flowmeter use and installation requirements:
1 In the installation process of the intelligent electromagnetic flowmeter, the sensor grounding ring should be grounded reliably, and the grounding resistance should be no more than l OΩ.
2 The upstream pipeline of the intelligent electromagnetic flowmeter has at least 5 pipe lengths of straight pipe sections, and its downstream has at least 3 pipe lengths of straight pipe sections. When conditions permit, the length of the straight pipe before the flowmeter is relaxed is 10 times the pipe diameter.
3 In the upstream pipeline of the flowmeter, install the valve outside the front distance, especially if the butterfly valve or the right angle bend pipe seriously affects the flow characteristics, install a rectifier in the straight pipe of 5 to 10 times of the upstream diameter of the flowmeter to achieve stability. The flow of water is used to improve the accuracy of measurement.
PVA Resin series products are white solids, with three shapes: flocculent, granular and powdery; It is non-toxic, tasteless and pollution-free, and can be dissolved in water at 80-90 ℃. Its aqueous solution has good adhesiveness and film-forming property; Capable of resisting most organic solvents such as oils, lubricants and hydrocarbons; It has the chemical properties of esterification, etherification and acetalization of long-chain polyols.
Mainly used for warp sizing, fabric finishing agent, vinylon fiber raw materials in textile industry; 107 glue, interior and exterior wall coatings, adhesives in the building decoration industry; Chemical industry is used as polymerization emulsifier, dispersant and polyvinyl formal, acetaldehyde, butyraldehyde resin; Paper industry is used as paper adhesive; In agriculture, it is used as soil improver, pesticide adhesion synergist and polyvinyl alcohol film; It can also be used in daily cosmetics and high-frequency quenching agent.PVA resin series products are white solids, with three shapes: flocculent, granular and powdery; It is non-toxic, tasteless and pollution-free, and can be dissolved in water at 80-90 ℃. Its aqueous solution has good adhesiveness and film-forming property; Capable of resisting most organic solvents such as oils, lubricants and hydrocarbons; It has the chemical properties of esterification, etherification and acetalization of long-chain polyols.
Polyvinyl Alcohol, PVA2488, PVA Resin,PVA 088-50,PVA 17
HENAN JINHE INDUSTRY CO.,LTD , https://www.hnchromiumoxidegreen.com