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3-Phase Separator Sizing Calculator

API 12J · Souders-Brown

3-Phase Separator Sizing

Gas capacity, liquid retention and vessel diameter for a horizontal three-phase separator.

● FREE TOOL

Inputs

Results

Min Vessel Diameter
– in
Seam-to-Seam Length
– ft
Max Gas Velocity
– ft/s
Liquid Volume Req.
– bbl
Horizontal separator preliminary sizing — Souders-Brown gas capacity + liquid retention time. Verify against API 12J and detailed design.

Vessel Schematic