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En 10226 Pipe Threads

Reference data and engineering information about en 10226 pipe threads for fluid mechanics applications.

10226pipethreads

Overview

Engineering reference data for En 10226 Pipe Threads 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

SymbolDescriptionUnit
ReReReynolds number
ρ\rhoFluid densitykg/m³
vvFlow velocitym/s
DDCharacteristic dimensionm
μ\muDynamic viscosityPa·s
PPPressurePa
ffDarcy friction factor

Thread Dimension Data Table

15 rows
EN 10226 pipe thread dimensions for pressure-tight joints.
Pipe Size(inches)
Threads per Inch (TPI)(-)
Pitch(mm)
Major Diameter(mm)
Minor Diameter(mm)
1/16280.9077.7236.561
1/8280.9079.7288.566
1/4191.33713.15711.445
3/8191.33716.66214.95
1/2141.81420.95518.631
3/4141.81426.44124.117
1112.30933.24930.291
1 1/4112.30941.9138.952
1 1/2112.30947.80344.845
2112.30959.61456.656
2 1/2112.30975.18972.226
3112.30987.84484.926
4112.309113.03110.072
5112.309138.43135.472
6112.309163.83160.872

Source: engineeringtoolbox.com

Interactive Charts

ISO 724 - Metric Threads

References