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Pe Pipe Pressure Loss

Reference data and engineering information about pe pipe pressure loss for fluid mechanics applications.

pipepressureloss

Overview

Engineering reference data for Pe Pipe Pressure Loss in fluid mechanics.

Key Formulas

Reynolds Number

Re=ρvDμRe = \frac{\rho v D}{\mu}

Ratio of inertial to viscous forces — determines flow regime.

Bernoulli's Equation

P+12ρv2+ρgh=constP + \frac{1}{2}\rho v^2 + \rho g h = \text{const}

Conservation of energy for steady, inviscid, incompressible flow.

Continuity Equation

A1v1=A2v2A_1 v_1 = A_2 v_2

Conservation of mass for incompressible flow.

Darcy-Weisbach

ΔP=fLDρv22\Delta P = f \frac{L}{D} \frac{\rho v^2}{2}

Pressure drop due to friction in a pipe.

Variables

Symbol Description Unit
ReRe Reynolds number
ρ\rho Fluid density kg/m³
vv Flow velocity m/s
DD Characteristic dimension m
μ\mu Dynamic viscosity Pa·s
PP Pressure Pa
ff Darcy friction factor

Fluid Properties

The pressure loss calculations use the following properties for water at 20°C flowing through PE pipes:

Property Metric Imperial
Fluid Water Water
Pipe Polyethylene (PE) SDR Pressure Rated Tube
Temperature 20.0 °C 68.0 °F
Density 998.3 kg/m³ 62.0 lb/ft³
Kinematic Viscosity 1.004 × 10⁻⁶ m²/s 1.08 × 10⁻⁵ ft²/s
Pipe Roughness Coefficient 3.0 × 10⁻⁶ m

Pressure Loss Data Tables

1/2" PE Pipe (Inside Diameter: 0.0158 m / 0.62 in)

3/4 in. PE Pipe (Inside Diameter: 0.021 m / 0.82 in)

1" PE Pipe (Inside Diameter: 0.027 m / 1.05 in)

Interactive Charts

References