Electromagnetic flowmeter structure is divided into one-piece and split-type, each has its own advantages. Today the electromagnetic flowmeter manufacturer Supmea mainly for the split electromagnetic flowmeter installation points to do a little explanation, we remember to collect.
Split electromagnetic flowmeter sensor should be installed vertically, and the fluid flows from the bottom up to meet the solid, liquid two are in a mixed state. The reason is that if the medium has solids (sediment, small stone particles, etc.) is prone to precipitation. In addition, there are fish and weeds in the pipeline fish swimming in the pipeline will cause the output of the flowmeter swing back and forth; hanging in the electrode near the weeds swing back and forth will cause the output of the flowmeter is not stable. In the flowmeter upstream inlet set metal screen to block the fish and weeds into the measuring pipe.
Split electromagnetic flowmeter to prevent negative pressure of the pipeline setup improper operation will cause negative pressure inside the sensor. When closing the flowmeter upstream and downstream valves at the same time, if the temperature of the fluid is higher than the air temperature . Shrinkage after cooling, so that the pressure in the pipe there is a danger of forming negative pressure. Negative pressure causes the lining and metal conduit stripping, causing electrode leakage.
Add negative pressure prevention valve near the split electromagnetic flowmeter and open the valve to connect to atmospheric pressure to prevent negative pressure in the sensor. Split electromagnetic flowmeter downstream connected to the vertical pipe, if the flow sensor upstream valve to close or adjust the flow rate, the sensor measurement pipe will form a negative pressure. In order to prevent negative pressure, you need to add back pressure or use the downstream valve to regulate and close the flow. Split electromagnetic flowmeter appropriate maintenance space, large diameter flowmeter is often installed in the instrument well, in order to pipe installation, wiring, inspection and maintenance of the convenience of the need to leave an appropriate space. For the convenience of observation, wiring and maintenance, meter installation should be a certain height from the ground for cleaning and installation.
Supmea produces electromagnetic flowmeter for many years, if you encounter any problems in the process of electromagnetic flowmeter selection, installation, use, maintenance, you can feel free to contact with Supmea staff, we help you answer.
Hangzhou Economic Development Area，Hangzhou 310018，China
