Flow Sheets and Temperature Points

Thermowell Design Flow Sheets and Temperature Points 

The temperature points, with their index numbers, will be found on the process control diagrsim. These require thermowell installations in the piping. The temperature index numbers assign to each point are designated by conventional symbols such as TI, (Temperature Indicator), TH, TIC, TC, TRC, TR, TIA, TRCA, TT and TW followed by the number assigned to each of the points. 

The flow sheets will give the pipe line size and the piping specification reference to use. An identifying process reference line number may also be given to each line. 

Layout The piping must be run in the space provided, without interfering with structural steel platforms and other piping. Sufficient space must be provided for the valves, flanges, instrument connections and for the installation of thermowells. 

Possibly the shortest piece of pipe that may be shown on flow sheets into which thermowells are 

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