无扩口管路连接是一种不需要对管路端部进行扩口处理的连接方式，通过拧紧螺母和接头体实现密封和固定。适用于高压环境，依靠金属密封面的锥面配合形成可靠密封。该技术通过螺母的楔形效应使接头体与密封面贴合，无需额外材料或热处理，广泛应用于液压和燃油系统。
| 标准号 & 类别 | 标准名称 | 发布 |
|---|---|---|
| HB 20006-2011 规范 |
Union with swivel nut, for flareless tube(0Cr18Ni9)
收紧螺母 |
2011-07-19 行业标准-航空 |
| HB 20009-2011 规范 |
Elbow with swivel nut, 45 degree, flareless tube(0Cr18Ni9)
收紧螺母 |
2011-07-19 行业标准-航空 |
| HB 20010-2011 规范 |
Elbow with swivel nut, 45 degree, flareless tube(1Cr11Ni2W2MoV)
收紧螺母 |
2011-07-19 行业标准-航空 |
| HB 20012-2011 规范 |
Elbow with swivel nut, 90 degree, flareless tube(0Crl8Ni9)
|
2011-07-19 行业标准-航空 |
| HB 20013-2011 规范 |
Elbow with swivel nut, 90 degree, flareless tube(1Cr11Ni2W2MoV)
收紧螺母 |
2011-07-19 行业标准-航空 |
| HB 20014-2011 规范 |
Tee with swivel nut for flareless tube(1Cr18Ni9Ti)
|
2011-07-19 行业标准-航空 |
| HB 20016-2011 规范 |
Tee with swivel nut for flareless tube(1Cr11Ni2W2MoV)
|
2011-07-19 行业标准-航空 |
| HB 20017-2011 规范 |
Cross with two swivel nut for flareless tube(1Cr18Ni9Ti)
|
2011-07-19 行业标准-航空 |
| HB 20020-2011 规范 |
Tee, with swivel nut, asymmetry, flareless tube(1Cr18Ni9Ti)
|
2011-07-19 行业标准-航空 |
| HB 20022-2011 规范 |
Tee, with swivel nut, asymmetry, flareless tube（1Cr11Ni2W2MoV）
|
2011-07-19 行业标准-航空 |
| HB 20023-2011 规范 |
Tee, with two swivel nut, flareless tube(1Cr18Ni9Ti）
|
2011-07-19 行业标准-航空 |
| HB 20024-2011 规范 |
Tee, with two swivel nut, flareless tube(0Cr18Ni9)
|
2011-07-19 行业标准-航空 |
| HB 20025-2011 规范 |
Tee, with two swivel nut, flareless tube(1Cr11Ni2W2MoV)
|
2011-07-19 行业标准-航空 |
| HB 20027-2011 规范 |
Cross with two swivel nut, asymmetry, flareless tube(0Cr18Ni9)
MJ 螺纹 |
2011-07-19 行业标准-航空 |
| HB 20028-2011 规范 |
Cross with two swivel nut, asymmetry, flareless tube(1Cr11Ni2W2MoV)
|
2011-07-19 行业标准-航空 |
| HB 20029-2011 规范 |
Cross with swivel nut for flareless tube(1Cr18Ni9Ti）
收紧螺母 |
2011-07-19 行业标准-航空 |
| HB 20030-2011 规范 |
Cross with swivel nut for flareless tube(0Cr18Ni9)
收紧螺母 |
2011-07-19 行业标准-航空 |
| HB 20031-2011 规范 |
Cross with swivel nut for flareless tube(1Cr11Ni2W2MoV)
收紧螺母 |
2011-07-19 行业标准-航空 |
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