Skip to main content
Speclore

Труба fittings equivalent length и k-factors

Equivalent length (l/d) и loss coefficients (k) для труба fittings, valves и transitions.

pipefittingsequivalentlength

Overview

Engineering reference data for Pipe Fittings Equivalent Length and K-Factors in piping systems.

Key Formulas

Continuity

A1v1=A2v2A_1 v_1 = A_2 v_2

Mass conservation in pipe flow.

Pressure Drop

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

Darcy-Weisbach equation.

Pipe Area

A=πD24A = \frac{\pi D^2}{4}

Cross-sectional area of a pipe.

Variables

SymbolDescriptionUnit
DDPipe diameterm
vvFlow velocitym/s
ΔP\Delta PPressure dropPa
ffFriction factor

References