ASME PTC 1974 - Intergraph Smart Instrumentation - 13.1 - Reference - Hexagon PPM

Integraph Smart Instrumentation Sizing Equations

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Intergraph Smart Instrumentation
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  1. Define initial value of constant.

  2. Calculate Ratio of Frequency at Fluid Temperature to Frequency at 70 °F:

  3. Calculate Maximum Thermowell Length Based on Vibration Limitation:

  4. Define Constant:

  5. Calculate natural frequency for L=L1:

  6. Calculate wake frequency:

  7. Calculate magnification factor for

  8. Calculate Maximum Allowable Static Gage Pressure

  9. Calculate maximum thermowell length based on steady state stress consideration.