Pressure gauges often break
Thread Content
A unit distillation kettle is used to distill and purify a strong acid; the kettle is equipped with a pressure gauge as well as a pressure transmitter of the CYB-301B type, manufactured in Tianshui, Gansu Province. No condensation elbow is installed between the kettle and the pressure gauge, and the operating pressure can be either positive or negative. It didn’t work properly for long after being used; the remote control stopped functioning. (It must be corroded) It needs to be replaced very frequently. It’s especially troublesome. Do anyone have any good suggestions? For example, by adding a condensation elbow or replacing it with another type of pressure gauge.
How much pressure? How about using a fluorine oil isolation tank? How about using a diaphragm gauge with a PTFE diaphragm?
The higher the temperature, the greater the corrosive effect on metals. When selecting this pressure transmitter, it is necessary to take into account the temperature of the tank, ensure that it can withstand negative pressures, and that the diaphragm is resistant to corrosion by strong acids at certain temperatures. Select the appropriate material for the diaphragm based on the material list using the materials available on site.
Due to their strong corrosiveness, diaphragm pressure gauges and diaphragm pressure transmitters are recommended.
Based on your operating conditions, it is recommended to use a diaphragm pressure gauge; I’m not sure if there are any diaphragm pressure gauges with remote transmission capabilities.
I don’t know how high the temperature is; are pressure sensors with PTFE diaphragms suitable for use?
For acidic media, a remote-transmission pressure transmitter with a tantalum diaphragm can be used; it’s just more expensive
Just add an isolation tank, right?
Diaphragm pressure gauge, suitable for corrosive environments
Come and learn* drip~ It sticks well! Thank you, OP!
If the pressure gauge is damaged, use a diaphragm pressure gauge with an anti-corrosion coating applied internally; WIKA’s pressure gauges are quite good