Module 3 Process Piping Hydraulics Sizing And Pressure Rating Pdf -

fluid hydraulics

This module explores the engineering principles of process piping, focusing on the critical relationship between , pipe sizing , and pressure integrity to ensure safe and efficient industrial operations. 1. Hydraulic Pipe Sizing Criteria

  • Minimum girth weld efficiency and component ratings must be considered.
  • For flange and fitting selection, use pressure-temperature rating tables (ASME B16.5, B16.47). Select the higher of component rating or system design pressure.
  • Include allowance for external loads (thermal expansion, support spans) and local stress concentrations.

    • Compressible flow considerations (gases & vapors) Minimum girth weld efficiency and component ratings must

    Pressure Drop

    : Excessive pressure drop increases pumping costs and energy consumption. For non-compressible fluids, maintaining fully turbulent flow is essential to prevent stagnant areas. material strength decreases.

    : Establishing preliminary sizes based on industry-standard velocity limits (e.g., 1–4.5 m/s for liquids) to prevent erosion, noise, and water hammer. Pressure Drop Constraints use pressure-temperature rating tables (ASME B16.5

    Continuity Equation

    Understanding fluid behavior is the first step in sizing. The relationship between velocity, diameter, and flow rate is governed by the . Hydraulics: Fluid Flow in Pipes | PDF - Scribd

    Maximum Allowable Working Pressure (MAWP)

    Every pipe has a at a given temperature. As temperature rises, material strength decreases.