1.0.1 With a view to achieving advanced technology, safety, usability, economy and rationality, as well as guaranteeing quality in design, construction and quality acceptance of metal pipe work for building drainage, this specification was formulated.
1.0.2 Metal pipe for building drainage may be used for drainage projects such as sewage pipe, air pipe, air-conditioning condensate pipe and rain drainage pipe in constructed, renovated and extended industry and civil buildings without erosion on metal. This specification is applicable to design, construction and quality acceptance of the above-mentioned metal pipe work for building drainage.
1.0.3 Design, construction and quality acceptance of metal pipe work for building drainage shall meet not only the requirements of this specification, but also those in the current relevant standards in China.
Foreword I
1 General Provisions 1
2 Terms 1
3 Pipe Material 2
3.1 Flexible Joint Cast Iron Pipe for Drainage 2
3.2 Carbon Steel Pipe (Welded Steel Pipe, Seamless Steel Pipe) 3
3.3 Ductile Iron Pipe 5
3.4 Stainless Steel Pipe 5
4 Design 6
4.1 Selection of Pipe and Connection Types 6
4.2 Design Requirements 7
4.3 Design Calculation 8
5 Construction 10
5.1 General Requirements 10
5.2 Connection and Installation of Pipe 12
5.3 Installation of Scaffolding and Hanger Frame and Placing of Buttress 14
6 Quality Acceptance 15
6.1 Site Test 15
6.2 Project Acceptance 15
Appendix A Pipe Hydraulic Calculation 17
Explanation of Wording in This Specification 21
List of Quoted Standards 22
1.0.1 With a view to achieving advanced technology, safety, usability, economy and rationality, as well as guaranteeing quality in design, construction and quality acceptance of metal pipe work for building drainage, this specification was formulated.
1.0.2 Metal pipe for building drainage may be used for drainage projects such as sewage pipe, air pipe, air-conditioning condensate pipe and rain drainage pipe in constructed, renovated and extended industry and civil buildings without erosion on metal. This specification is applicable to design, construction and quality acceptance of the above-mentioned metal pipe work for building drainage.
1.0.3 Design, construction and quality acceptance of metal pipe work for building drainage shall meet not only the requirements of this specification, but also those in the current relevant standards in China.
Contents of CJJ 127-2009
Foreword I
1 General Provisions 1
2 Terms 1
3 Pipe Material 2
3.1 Flexible Joint Cast Iron Pipe for Drainage 2
3.2 Carbon Steel Pipe (Welded Steel Pipe, Seamless Steel Pipe) 3
3.3 Ductile Iron Pipe 5
3.4 Stainless Steel Pipe 5
4 Design 6
4.1 Selection of Pipe and Connection Types 6
4.2 Design Requirements 7
4.3 Design Calculation 8
5 Construction 10
5.1 General Requirements 10
5.2 Connection and Installation of Pipe 12
5.3 Installation of Scaffolding and Hanger Frame and Placing of Buttress 14
6 Quality Acceptance 15
6.1 Site Test 15
6.2 Project Acceptance 15
Appendix A Pipe Hydraulic Calculation 17
Explanation of Wording in This Specification 21
List of Quoted Standards 22
