Cts Copper Tubing Sizes

Overview

Engineering reference data for Cts Copper Tubing Sizes in piping systems.

Key Formulas

Continuity

$A_1 v_1 = A_2 v_2$

Mass conservation in pipe flow.

Pressure Drop

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

Darcy-Weisbach equation.

Pipe Area

$A = \frac{\pi D^2}{4}$

Cross-sectional area of a pipe.

Variables

Symbol	Description	Unit
$D$	Pipe diameter	m
$v$	Flow velocity	m/s
$\Delta P$	Pressure drop	Pa
$f$	Friction factor	—

CTS Copper Tubing Data Table

The following table provides the standard Copper Tube Sizes (CTS) for Type K, L, and M tubing used in plumbing across the U.S. and Canada. These dimensions are also commonly used for CPVC piping.

Additional Industry Notes

• Global Standards: The CTS (Type K, L, M) system is predominant in North America. In Europe, copper tubes are specified according to BS 2871 (Types X, Y, Z) and EN 1057.
• CPVC Compatibility: CPVC (Chlorinated Polyvinyl Chloride) pipes, often used in Schedule 40 and 80, are also manufactured to fit within the CTS dimensional framework, allowing for common fittings.

Interactive Charts

References

• Original Source