What should be done if a diaphragm pressure gauge cannot be used due to excessively high process temperature?
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In the petrochemical industry, the medium temperature reaches 427 degrees. The supplier told us that the high-temperature silicone oil used in diaphragm gauges can handle a maximum temperature of 400 degrees only. Could anyone please suggest some solutions? Thank you all!
I’m sorry; I’m the original poster. To add more details: the connection type is flange connection, CL2500, with an actual pressure of over 100 kilograms, and it involves high-temperature steam
Can’t the regular approach be used? The manufacturer provides radiators; a condensation elbow must be added separately
For diaphragm valves with flange connections, can a condenser tube be added below the flange as well?
How do you connect a condensation elbow and a flange?
Using a diaphragm type is not appropriate; a regular pressure gauge is sufficient for steam
The pressure tap is connected via a flange; a condensation tank is placed behind it, and a pressure conduit is used to connect this tank to the gauge.
A flange cover is placed on the flange; a hole is drilled in this cover, and pressure transfer pipes are welded to it. A condensation loop long enough is created, with one end connected to the transmitter. For steam media, a diaphragm is not necessary – ordinary threaded connections will suffice
Use a condenser to cool it down, or it’s best to purchase one according to your own needs; that will be better
If it’s a high-temperature, viscous medium, use a diaphragm gauge. If it is steam, it should be led out using a pressure guide tube, and an ordinary Bourdon tube pressure gauge can be used; I can tell you that such a gauge costs 45 yuan. Do you believe that the temperature at the location of the pressure gauge is at room temperature? ! Your leader is an amateur