无扩口导管连接件是一种不需要对导管端部进行扩口处理即可实现密封连接的管件，依靠锥面密封原理工作。通过拧紧螺母和接头体使密封面紧密贴合，适用于高压管路系统。该连接方式简化了安装工艺，避免了扩口工序对导管材料造成的应力影响，提高了连接的可靠性和密封性。
| 标准号 & 类别 | 标准名称 | 发布 |
|---|---|---|
| HB 20005-2011 规范 |
Union with swivel nut, for flareless tube(1Cr18Ni9Ti)
|
2011-07-19 行业标准-航空 |
| HB 20007-2011 规范 |
Union with swivel nut, for flareless tube(1Cr11Ni2W2MoV)
|
2011-07-19 行业标准-航空 |
| HB 20008-2011 规范 |
Elbow with swivel nut, 45 degree, flareless tube(1Cr18Ni9Ti)
收紧螺母 |
2011-07-19 行业标准-航空 |
| HB 20011-2011 规范 |
Elbow with swivel nut, 90 degree, flareless tube(1Cr18Ni9Ti)
收紧螺母 |
2011-07-19 行业标准-航空 |
| HB 20015-2011 规范 |
Tee with swivel nut for flareless tube(0Cr18Ni9)
|
2011-07-19 行业标准-航空 |
| HB 20018-2011 规范 |
Cross, with two swivel nut for flareless tube(0Cr18Ni9)
MJ 螺纹 |
2011-07-19 行业标准-航空 |
| HB 20019-2011 规范 |
Cross, with two swivel nut for flareless tube(1Cr11Ni2W2MoV)
|
2011-07-19 行业标准-航空 |
| HB 20021-2011 规范 |
Tee, with swivel nut, asymmetry, flareless tube（0Cr18Ni9）
|
2011-07-19 行业标准-航空 |
| HB 20026-2011 规范 |
Cross with two swivel nut, asymmetry, flareless tube(1Cr18Ni9Ti)
|
2011-07-19 行业标准-航空 |
| HB 5993-2008 规范 |
Elbow, 45°, flareless tube, 21MPa
一般公差 |
2008-03-17 行业标准-航空 |
| HB 6001-2008 规范 |
Elbow, 45°，screwed-onto, flareless tube, 21MPa
一般公差 |
2008-03-17 行业标准-航空 |
| HB 6062～6063-1996 规范 |
Compression nut
|
1996-09-13 行业标准-航空 |
| HB 7859-2008 规范 |
Tee reducer, flareless tube, 28MPa
|
2008-03-17 行业标准-航空 |
| HB 7870-2008 规范 |
Cross reducer, C type, flareless tube, 28MPa
|
2008-03-17 行业标准-航空 |
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