扩口式管接头技术条件 GB /T 5653 - 2008
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推荐材料
表1 接头体等零件推荐材料表
零件名称
抗拉强度 / MPa
材料牌号
标准编号
接头体、空心螺栓、螺母
≥340
15、20
GB/T 699
锁紧垫圈
≥320
08F
GB/T 699
管套
≥520
35
GB/T 699
注：可以选用其他材料
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压力/温度要求
符合扩口式管接头标准的碳钢管接头，在介质温度为-40℃~+120℃范围使用时，应能承受规定的最大工作压力。
表2 用于液压流体动力与一般用途的扩口式管接头的最大工作压力
管子外径
D0
mm紫铜管
MPa①碳钢管
MPa①管子外径
D0
mm紫铜管
MPa①碳钢管
MPa①4
16
16
18
5
10
5
16
16
20
5
10
6
16
16
22
5
8
8
10
16
25
5
8
10
10
16
28
3.5
8
12
10
12
32
3.5
5
14
8
12
34
3.5
5
16
8
10
/
/
/
① 1Mpa=10bar=106N/m2=106Pa。
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注：技术数据仅供参考，以官方原件为准！
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