I would like to ask about the meaning of the graphics representing the pressure transmitter component in PID
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I would like to ask the experts here: The pressure transmitter in PID is represented in the following way. What does the symbol “s+square” marked in red mean? First, thank you all: lol
In a PID diagram, “S” usually represents a switch; if the box following it is empty, it may indicate that this is a manually set switch. If there are specific letters or symbols inside the box, they may represent the specific function or type of the switch. In the context of pressure transmitters, this combination of “S+” and a square may be used to indicate a safety or alarm switch associated with the pressure transmitter, designed to trigger certain actions such as shutting off power or issuing an alarm when a preset pressure value is reached. However, it is best to refer to the detailed documentation or standard specifications of the relevant device for the specific meaning. .
Please help out; I’m counting on the gentleman downstairs
Could it be an isolation tank or a condensation tank? For specifics, you can take a look at the legend at the beginning of the PID diagram
The root valve is an inch-sized ball valve, which is relatively rare.
It is possible that the fluid in the pipeline is a corrosive medium; S is a diaphragm assembly added to prevent corrosion of the pressure-measuring elements of the pressure gauge and pressure sensor.