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GB/T 3287 U1 平座活接头 (变径 G1 x G1/2, 简化螺纹)
- Bounding box
- 63.5 × 55.0 × 82.0 mm
- Engine
- Precision B-rep
- Parameters
- 23
- Published
- September 28, 2026
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GB/T3287 U1平座活接头,变径双内螺纹,三件装配:左端G1内螺纹,右端G1/2内螺纹,平面平座密封,含锁紧螺母; G1(DN25):大径33.249,螺距2.309,11牙/英寸,六角对边41mm; G1/2(DN15):大径20.955,螺距1.814,14牙/英寸,六角对边27mm; 只做简化螺纹(光孔,不做真实牙型,用于管路干涉检查); 输出装配STEP AP214,Brep实体,无曲面破损。
Parameters
| Name | Value | Range |
|---|---|---|
| G1 螺纹大径/简化孔径 | 33.25 mm | 25 – 45 |
| G1 螺距 (11牙/英寸, 用作入口倒角) | 2.31 mm | 1 – 4 |
| G1 端六角对边 | 41 mm | 30 – 60 |
| G1 端六角长度 | 22 mm | 10 – 40 |
| 外螺纹接头外径 (简化) | 42 mm | 34 – 60 |
| 外螺纹段长度 | 28 mm | 15 – 50 |
| G1 螺纹深度 (简化沉孔) | 20 mm | 8 – 35 |
| G1 端内流道孔径 | 21 mm | 12 – 33 |
| 锁紧螺母六角对边 | 55 mm | 35 – 75 |
| 锁紧螺母长度 | 36 mm | 20 – 60 |
| 锁紧螺母内孔 (简化内螺纹) | 44 mm | 35 – 62 |
| 螺母台肩孔径 | 35.5 mm | 26 – 42 |
| 螺母台肩厚度 | 4 mm | 2 – 10 |
| G1/2 端插头外径 | 34 mm | 26 – 41 |
| G1/2 端凸缘外径 | 42 mm | 36 – 55 |
| G1/2 端凸缘长度 | 7 mm | 3 – 15 |
| G1/2 端六角对边 | 27 mm | 20 – 40 |
| G1/2 端六角长度 | 18 mm | 8 – 30 |
| G1/2 螺纹大径/简化孔径 | 20.96 mm | 15 – 30 |
| G1/2 螺距 (14牙/英寸, 用作入口倒角) | 1.81 mm | 1 – 3.5 |
| G1/2 螺纹深度 (简化沉孔) | 15 mm | 6 – 30 |
| G1/2 端内流道孔径 | 16 mm | 8 – 20 |
| 装配搭接量 (保证单一实体) | 1 mm | 0.2 – 2 |
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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