Gas Valve Adapter

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Bounding box: 30.0 × 30.0 × 53.0 mm
Engine: Precision B-rep
Parameters: 12
Published: October 28, 2026

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The prompt

“请帮我生成一个气阀转接头的三维模型。总高度是 53mm。顶部是一个 M18*1.5 的外螺纹（约15mm长），螺纹根部有一个凹槽用于放置 O 型密封圈。中间主体是一个圆柱体，表面有垂直的直纹滚花，外径约30mm。底部是一个 5/8-18UNF 的内螺纹。非常重要：这是一个通气接头，所以中心必须有一个贯穿的通孔（通径约8-10mm），从顶部螺纹内部一直连通到底部内螺纹内部。请确保内外螺纹同轴，且中心通孔完全打通。”

Parameters

Name	Value	Range
Total Height	53 mm	40 – 70
Top Thread Diameter	18 mm	16 – 20
Top Thread Length	15 mm	8 – 20
O-Ring Groove Diameter	15 mm	13 – 17
O-Ring Groove Width	2.5 mm	1.5 – 4
Body Diameter	30 mm	25 – 40
Bottom Internal Thread Length	18 mm	10 – 25
Bottom Thread Nominal Diameter	15.88 mm	14 – 18
Bottom Thread TPI	18 tpi	12 – 24
Center Through Hole Diameter	9 mm	7 – 11
Knurl Groove Depth	0.5 mm	0.2 – 1
Knurl Groove Count	30	12 – 60

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.

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