Detail of SH 3501-2011

Introduction of SH 3501-2011

1 Scope This code specifies the construction, examination and inspection requirements of toxic and combustible medium steel piping engineering in petrochemical industry. This code is applicable to the construction and acceptance of toxic and combustible medium steel piping engineering in petrochemical industry, with nominal pressure less than or equal to PN 420 (CL 2500) and design temperature between -196℃~850℃; it is not applicable to the construction and acceptance of long-distance piping and gas piping engineering in town. 2 Normative References The following normative documents contain provisions which, through reference in this text, constitute provisions of this code. Subsequent amendments (excluding amending errors in the text) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this Part are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the normative document is applicable to this code. GB/T 229 Metallic Materials - Charpy Pendulum Impact Test Method GB 1954 Methods of Measurement for Ferrite Content in Austenitic Stainless Steel Weld Metals GB/T 4334 Corrosion of Metals and Alloys - Test Methods for Intergranular Corrosion of Stainless Steels GB 5044 Classification of Health Hazard Levels from Occupational Exposure to Toxic Substances GB 5777 Seamless Steel Pipe and Tubing - Methods for Ultrasonic Testing GB 16912 Safety Technical Regulation for Oxygen and Relative Gases Produced with Cryogenic Method GB 50016 Code for Design of Building Fire Protection GB 50160 Fire Prevention Code of Petrochemical Enterprise Design GB 50484 Technical Code of Construction Safety of in Petrochemical Engineering GB 50517 Code for Construction Quality Acceptance of Metallic Piping in Petrochemical Engineering JB/T 4730 Nondestructive Testing of Pressure Equipment SH 3097 Code for the Design of Static Electricity Grounding for Petrochemical Industry SH/T 3503 Regulation of Technical Document for Construction Completion of Petrochemical Industry Project SH 3518 Code for Valves Inspection and Management SH/T 3521 Technical Code of Construction of Instrumentation Engineering for Petrochemical Industry SH/T 3525 Welding Specification of Low Temperature Steel for Petrochemical Engineering SH/T 3526 Welding Specification of Different Steels for Petrochemical Engineering SH/T 3543 Technical Document Specification of Construction Process for Petrochemical Engineering Project SH/T 3546 Code for Construction and Acceptance of Jacket Pipes in Petrochemical Engineering SH/T 3547 Code for Construction and Acceptance of Chemical Cleaning for Petrochemical Equipment and Piping TSG D2001 Pressure Piping Components Manufacture Appraisal Regulation TSG ZF001 Safety Technical Supervision Regulations for Safety Valves TSG Z6002 Examination Rules for Welding Operators of Special Equipment GZJG[2003]No.248 Assessment, Supervision and Administration Rules for Non-destructive Testing Personnel of Special Equipment 3 Terms and Definitions The following terms and definitions are applicable to this code. 3.1 Pressure piping Piping in petrochemical industry engineering, for transmitting gas, liquefied gas, steam medium with design pressure greater than or equal to 0.1MPa (gauge pressure), or combustible, toxic or corrosive liquid medium with design temperature equal to or greater than the normal boiling point and nominal diameter greater than 25mm. 3.2 Piping components Closed piping system components for connecting or assembling bearing pressure. 3.3 Pipe-supporting elements Components for transmitting the piping load to pipe support structure. 3.4 Inspection certificate The inspection document indicated with inspection results, where the deliveries are inspected and tested by an independent authorized department (other than the production department of the manufacturer) or individual according to the provisions of this code and the contract.

Contents of SH 3501-2011

Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 General Provisions 5 Receiving Inspection of Piping Components and Pipe-supporting Elements 5.1 General Requirements 5.2 Acceptance of pipes and pipe fittings 5.3 Valve acceptance 5.4 Acceptance of flange, flange cover and lap joint stub end 5.5 Acceptance of fasteners 5.6 Acceptance of gasket 5.7 Acceptance of metal bellows expansion joint 5.8 Acceptance of rupture disk 5.9 Acceptance of fire arrestor 5.10 Acceptance of pipe-supporting elements 6 Prefabrication and Installation of Piping 6.1 Piping prefabrication 6.2 Piping Installation 7 Pipeline Welding 7.1 General Requirements 7.2 Preparation before Welding and Joint Assembly 7.3 Requirements of Welding Process 7.4 Post-weld Heat Treatment 7.5 Inspection of Welding Quality 8 Piping System Test 8.1 Pressure Test of Piping System 8.2 Purging and Cleaning of Piping System 8.3 Gas Leakage Test and Vacuum Degree Test 9 Technical Documents for Construction Process and Construction Completion Appendix A (Informative) Common Toxic Medium and Combustible Medium Appendix B (Informative) Processing Record of Bent Pipe Explanation of Wording in This Code