HG 20203-2000 in English

1.0.1 So as to instruct chemical machinery installation engineering and improve construction level as well as guarantee quality and safety, the specification is worked out.
1.0.2 The specification is suitable for chemical industry machinery installation construction, solo test run and acceptance of compressor, fan, chemical pump, centrifuge, beater, filter, drier, refrigerating machine for chemical manufacturing.
1.0.3 The chemical machine linkage trial run, production preparation, chemical industry charging and manufacturing check are carried out by construction organization according to current standard HGJ 231 “Code for commissioning test run of chemical large and medium plant" and HGJ 232 "Code for preliminary work of production of chemical large and medium plant pipeline".
1.0.4 In the construction process, all classes of chemical machines not only implemented the specification specified basic technical requirements, but also implemented prescription of current special chemical machine construction and acceptance specification (hereinafter referred to as "special specification" and machine technical document.
1.0.5 The special engineering concerning piping, electric, instrument, corrosion protection, heat preservation and degreasing should be constructed and accepted according to design technical documents and related current standard and specification.
1.0.6 The safety technique, labor protection, environmental protection and fire protection requirements in chemical machine installation engineering should be implemented according to related prescription of current standard and specification.
1.0.7 The applied system of units of measurement and counting device, apparatus, instrument and equipment of machine installation must be implemented the prescription of current weights and measures law, and their precision class should be no less than the precision class of the detected objects.

1 General Principles 5
2 Terms and Symbols 5
2.1 Terms 5
2.2 Symbol 7
3 Preparations for Construction 7
3.1 Technical preparation 7
3.2 Technical data 8
3.3 Unpacking inspection and management 8
3.4 Construction site possessed condition 9
3.5 Foundation acceptance and treatment 9
4 Machine Installation 11
4.1 Installation with sizing block 11
4.2 No-sizing block installation 14
4.3 Anchor bolt 15
4.4 Lifing in place, levelling and alignment 17
4.5 Grouting 23
5 Cleaning and Assembly 26
5.1 General regulations 27
5.2 The bolt, key and guide pin assembly 28
5.3 Rolling bearing assembly 31
5.4 Sliding bearing assembly 35
5.5 Stationary fit piece assembly 37
5.6 Sealing member assembly 39
5.7 Transmission belt, chain and gear assembly 41
6 Auxiliary Facility and Pipeline Installation 49
6.1 Auxiliary facility installation 49
6.2 The pipe installation of oil system and miscelleous systems 49
6.3 Pipeline and machine connection 50
7 Pre-test Run 51
7.1 The division of labor and responsibility for pre-test run 51
7.2 Condition and preparation for pre-test run 52
7.3 System test and public works test run working 53
7.4 Solo test run 54
8 Documents for Project Completion 57
Appendix A Mud-jack method or base mortar method placing sizing block 58
Appendix B No-sizing block installation 61
Appendix C Anchor bolt screwing down moment and axial tension reference value 63
Appendix D Coupling alignment and leveling operation procedure 64
Appendix E Proportioning of concrete for grouting 66
Appendix F Dispensation and selection for cleaning solution 68
Appendix G Common derusting method and quality requirements 72
Appendix H Common anti-seizing agent 74
Appendix J Calculation method for bolt rigidity, connected piece rigidity and fastening moment 75
Appendix K Assembly method for stationary fit and transition fit 77
Appendix L Vee belt tensile force adjustment 80
Appendix M The mixing proportion of the pipeline pickling liquor 82
Appendix N The wording explanation of the national standard 84