Calculating the Reynolds number determines the flow regime (laminar, transition, or turbulent). Sanitary systems, for example, often require full turbulence ( ) to prevent stagnation. CEDengineering.com 2. Pressure Drop and Friction Loss
Water flows through an NPS 6, SCH 40 pipe (ID = 6.065 inches) at 1,500 GPM. The pipe length is 500 ft. Density = 62.4 lb/ft³, Viscosity = 1 cP. Calculate the velocity and friction loss. Calculating the Reynolds number determines the flow regime
Once the diameter is set, the pipe must be strong enough to contain the internal pressure. This is governed by international standards like ASME B31.3 (Process Piping). ASME B31.3 Sizing Formula The required wall thickness ( ) is calculated using: Pressure Drop and Friction Loss Water flows through
To find the pipe diameter ($D$) based on a chosen velocity ($v$): Calculate the velocity and friction loss
A common misunderstanding is that "Class 150" means 150 PSI. It does not. Class 150 simply defines a geometry of flange.