3D preview of Y Union Fitting (3-Way Air)
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Y Union Fitting (3-Way Air)

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Bounding box
28.1 × 8.9 × 34.0 mm
Engine
Precision B-rep
Parameters
9
Published
October 10, 2026

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The prompt

i want a Y union for compressed air. two terminals have an internal diameter of 1.88 mm and external of 4.3. the other terminal has an internal diameter of 5.9mm and exterrnal of 8.9mm

Parameters

NameValueRange
Large Port OD8.9 mm4 – 25
Large Port ID (bore)5.9 mm1.5 – 22
Small Port OD4.3 mm2 – 15
Small Port ID (bore)1.88 mm0.5 – 12
Large Port Length20 mm8 – 60
Small Port Length18 mm8 – 60
Branch Half-Angle45 deg20 – 70
Junction Boss Factor1 x0.75 – 1.8
Port End Chamfer0.3 mm0 – 1

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

Y Union Fitting (3-Way Air) - Free CAD Model (STEP, STL) | TextoCAD