How to choose a concentrated sulfuric acid flow meter
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For C4 deep processing, the flow meters for acid addition and acid discharge in the reactor – previously electromagnetic flow meters with PTFE linings were used – and we plan to replace them. I’m not sure what type could be used instead; could anyone recommend one? Thank you
There is no better choice than an electromagnetic flowmeter:D
Electromagnetic flowmeters are quite good; there’s no need to replace them. If replacement is necessary, mass flowmeters can also be used.
That makes sense; we use electromagnetic devices for our concentrated sulfuric acid, and there have been no problems in over three years
Our lining is corroded, and it’s not very stable either in normal use
Our lining is corroded, and it’s not very stable either in normal use
If an electromagnetic flowmeter is installed too loosely, acid leakage can occur; if it is installed too tightly, the lining may be damaged. . . . It’s mainly not very stable, probably due to poor liquidity
It seems there is nothing better. . . . . ?
How could the PTFE lining corrode? We’ve been using it just fine; the gasket in between is also made of PTFE, and the screws are tightened properly – there’s no such phenomenon as you mentioned
Switch to an electromagnetic flowmeter from a well-known brand. How does the tightness of flange bolts affect the lining? The manufacturing quality is terrible. PTFE is the best plastic for resisting acids and alkalis; is there any other option?