May I ask what kind of level gauge is generally used for formaldehyde storage tanks?
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I would like to ask: for formaldehyde storage tanks equipped with breather valves, what kind of level gauge is generally used? Can a differential pressure type level transmitter be used? If possible, what issues should be taken into consideration during installation?
We use formaldehyde with a concentration of 37, and we use float balls!
Magnetostrictive level gauges can be considered, as well as submersible level gauges, level gauges mounted on the flange side, and differential pressure transmitters； Magnetostrictive level gauges are relatively expensive, but they offer high measurement accuracy and a long service life; they do not require regular recalibration, output digital signals, and can transmit data over long distances ； Submersible level gauges have low measurement accuracy but relatively low costs ； The cost of flange-mounted level gauges and differential pressure transmitters is roughly the same, and their measurement accuracy is not high. If signal transmission over long distances is required, digital signals or products with HART protocol should be considered; however, the signal quality suffers when the transmission distance exceeds 50 meters. For installation, connections are made via flanges; both magnetostrictive level gauges and submersible level gauges are of the top-mounted type, and they are installed in the light-transmitting holes or other openings on the tank top ； Flange level gauges and differential pressure transmitters can both be installed on the side.
Glass is fine; there’s no need for such complexity. For other materials, corrosion prevention has to be taken into account, which is quite troublesome.
We installed a radar level gauge, which is very accurate. Once and for all.
What is the general price of domestically produced radar level gauges?