Pressure transmitter root valve
Thread Content
Now, it is necessary to select the root valve for the pressure transmitter on the furnace; the temperature at the pressure sampling point is over 1000 degrees. Does the design temperature of the root valve also need to be over 1000 degrees? Is this also necessary if it’s on a pipeline?
Little one, are you just making empty promises? Theoretically, if pressure readings are to be taken on the high-temperature side, a blowing device is required to direct the pressure to the location of the pressure transmitter; the zero point needs to be calibrated before operation, and that’s all. What do you think?
The purging device blows air into the pipes or equipment at the location of the pressure transformer; logically, this should lower the temperature of the equipment or pipes. According to the pipeline specifications, valves are required to be able to withstand temperatures equal to or higher than the design temperature of the pipeline. Since the temperature in my furnace is over 1000 degrees, does my root valve also need to be capable of withstanding such high temperatures?
You are right, but root valves are generally located near the equipment and pipes. According to the regulations for pipes, the valves must be able to withstand temperatures equal to or higher than those of the pipes. If the temperatures of the pipes and equipment are extremely high, could we place the valves further away so that a less resistant material can be used?
The gas used for sampling and measurement doesn’t require temperatures of over 1,000 degrees Celsius, and it’s usually inert gas – where does such a high temperature come from? Besides, the temperature of your furnace walls can’t possibly be over 1000°C.
Like a fool – the root valve is not part of the automatic control design.
Yes, it’s beyond my control, but I went over to the pipeline area to ask, and no one answered
You are right; the temperature of the furnace wall is very low, which results in a reduced quality of the material produced. However, the temperature at the measurement points is high – should we go by that higher value? Also, the pipes coming out of the furnace are at over 800 degrees; does that mean my root valve also has to withstand temperatures of over 800 degrees? Are there any other ways to lower the temperature?