Selection of level gauge
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For the raw material storage tank and the concentrated sulfuric acid storage tank, with an operating pressure of 1.5 kPaG and a design pressure of 5 kPaG, can a single-flange differential pressure level gauge be used for measuring the liquid level?
Yes, but when selecting it, the membrane’s resistance to sulfuric acid corrosion should be taken into account
A radar level gauge suitable for sulfuric acid tanks will do, with a PTFE lining. It requires little maintenance, reducing the risks associated with repairs. Vager, Coriolis, Rosemount – these are all good brands.
Single-flange versions are acceptable, but it is important to check whether pressure is applied or if nitrogen sealing is used; if so, a double-flange version should be used. The Yokogawa EJA series is very reliable； Radar works too, but the price is about twice that of Flan~
One for local use, one for remote transmission. All use PTFE to reduce risks
There’s no differential pressure level gauge for single flange, right? Sulfuric acid storage tanks must be sealed. A double-flange differential pressure level gauge can be used, and a magnetic flap level gauge is also commonly employed.
Single-flange differential pressure level gauge? This is not a pressure vessel; a single flange cannot be used – a double flange or a radar can be used instead