Refrigerant Pipe Sizer — Suction, Discharge & Liquid Lines

System Parameters

Refrigerant

System Capacity (tons)

Evaporating Temp (°F)

Condensing Temp (°F)

Suction Superheat (°F)

Liquid Subcooling (°F)

Recommended Line Sizes

Suction Line

—

Velocity—

Mass flow—

Discharge Line

—

Velocity—

Mass flow—

Liquid Line

—

Velocity—

Mass flow—

Capacity Table — All Line Sizes

OD Size	ID (in.)	Suction cap. (tons)	Suc. vel. (fpm)	Discharge cap. (tons)	Liquid cap. (tons)

Do the full calculation in AIM Works

This calculator handles one step. AIM Works runs the complete MEP design workflow — thermal load calculations, duct & pipe networks, equipment selection, code compliance, and an AI design assistant — in one tool.

✓ ASHRAE 62.1 ventilation + CLTD/CLF/RTS load methods

✓ Darcy-Weisbach pipe & duct network solvers

✓ ASHRAE 90.1 / IMC / NFPA compliance checks

✓ 20 free AI design messages included in trial