GB50235-2010：工业金属管道工程施工规范

本规范共分10章和1个附录，主要技术内容是：总则，术语和符号，管道安装的基本规定，管道元件和材料的检验，管道加工，管道焊接和焊后热处理，管道安装，管道检查、检验和试验，管道吹扫与清洗，工程交接验收等。

GB50235-2010······1

1 总则······13

2 术语和符号······14

2.1 术语······14

2.2 符号······16

3 基本规定······19

3.1 一般规定······19

3.2 分级······20

4 管道元件和材料的检验······21

4.1 一般规定······21

4.2 阀门检验······22

4.3 其他管道元件检验······23

5 管道加工······24

5.1 一般规定······24

5.2 下料切割······24

5.3 弯管制作······25

5.4 卷管制作······28

5.5 管口翻边······29

5.6 夹套管制作······30

5.7 斜接弯头制作······31

5.8 支、吊架制作······32

6 管道焊接和焊后热处理······33

7 管道安装······40

7.1 一般规定······40

7.2 管段预制······41

7.3 钢制管道安装······42

7.4 连接设备的管道安装······45

7.5 铸铁管道安装······46

7.6 不锈钢和有色金属管道安装······48

7.7 伴热管安装······49

7.8 夹套管安装······50

7.9 防腐蚀衬里管道安装······50

7.10 阀门安装······51

7.11 补偿装置安装······51

7.12 支、吊架安装······55

7.13 静电接地安装······57

8 管道检查、检验和试验······59

8.1 一般规定······59

8.2 外观检查······59

8.3 焊缝表面无损检测······59

8.4 焊缝射线检测和超声检测······60

8.5 硬度检验及其他检验······60

8.6 压力试验······61

9 管道吹扫与清洗······67

9.1 一般规定······67

9.2 水冲洗······68

9.3 宅气吹扫······69

9.4 蒸汽吹扫······69

9.5 脱脂······70

9.6 化学清洗······70

9.7 油清洗······71

10 工程交接······72

附录A 施工质量检查记录的内容及格式······74

本规范用词说明······91

引用标准名录······92

附：条文说明······93

1 总则······97

2 术语和符号······98

2.1 术语······98

3 基本规定······99

3.1 一般规定······99

3.2 分级······100

4 管道元件和材料的检验······101

4.1 一般规定······101

4.2 阀门检验······102

4.3 其他管道元件检验······103

5 管道加工······104

5.1 一般规定······104

5.2 下料切割······104

5.3 弯管制作······105

5.4 卷管制作······105

5.5 管口翻边······106

5.6 夹套管制作······106

5.7 斜接弯头制作······106

5.8 支、吊架制作······107

6 管道焊接和焊后热处理······108

7 管道安装······110

7.1 一般规定······110

7.2 管段预制······111

7.3 钢制管道安装······111

7.4 连接设备的管道安装······112

7.5 铸铁管道安装······113

7.6 不锈钢和有色金属管道安装······113

7.7 伴热管安装······114

7.8 夹套管安装······114

7.9 防腐蚀衬里管道安装······115

7.10 阀门安装······115

7.11 补偿装置安装······115

7.12 支、吊架安装······116

7.13 静电接地安装······116

8 管道检查、检验和试验······117

8.1 一般规定······117

8.2 外观检查······117

8.3 焊缝表面无损检测······118

8.4 焊缝射线检测和超声检测······118

8.5 硬度检验及其他检验······119

8.6 压力试验······120

9 管道吹扫与清洗······123

9.1 一般规定······123

9.2 水冲洗······123

9.3 空气吹扫······124

9.4 蒸汽吹扫······124

9.5 脱脂······124

9.6 化学清洗······125

9.7 油清洗······125

10 工程交接······126