Module 3 Process Piping Hydraulics Sizing And Pressure Rating Pdf (Trusted Source)

Module 3 — Process Piping Hydraulics: Sizing & Pressure Rating (Reference overview)

The primary equation for frictional pressure drop is:

A process pipe is required to transport 100 m³/h of water at a pressure of 10 bar. The pipe is 100 m long and has a roughness of 0.046 mm. Determine the required pipe diameter and pressure rating. Module 3 — Process Piping Hydraulics: Sizing &

The sizing of process piping is a balance between initial capital costs (pipe material) and long-term operating costs (energy for pumping). ASME B31

Process fluids often corrode metal. An extra thickness (e.g., 3mm) is added to the calculated $t$ to account for material loss over the plant's lifespan. $$t_required = t_calculated + \textCorrosion Allowance$$ ASME B31.3 — Process Piping (design

Fluid Flow Equations

: Sizing typically begins with basic fluid flow equations to calculate the necessary ID based on the required flow rate and target velocity.

5. Pressure Class Ratings (Flanges and Valves)

Bernoulli’s equation states that total mechanical energy is conserved along a streamline, minus losses:

• ASME B31.3 — Process Piping (design, allowable stresses, thickness).
• ASME B16.x series — flanges, fittings, valves dimensions and ratings.
• ISO/API standards for specific fluids and components.
• Crane Technical Paper No. 410 — Flow of fluids (loss coefficients).
• Textbooks: Munson/Fundamentals of Fluid Mechanics; Idelchik/Handbook of Hydraulic Resistance.