The Code is established with the end of supervising construction and acceptance of machinery fitting engineering, ensuring quality and security, promoting technical advancement and enhancing economic benefits.
Article 1.0.2
This Code is compliable to construction and acceptance of various machinery fitting engineering, from uncasing to the zero-load test run of equipment. For equipment requiring loads for test run, the construction and acceptance will be from uncasing to load test run.
Article 1.0.3
Equipment installation projects ought to be constructed according to designs. During construction, if irrationalities are discovered in designs, amending suggestions ought to be put forward in time and the construction can only be recovered according to the altered design after the alternation design is approved.
Article 1.0.4
Materials mainly used for the installed mechanical equipment or for important places of the equipment ought to be in compliance with provisions of the design and product standards and acquired qualified certification.
Article 1.0.5
Different kinds of measurement apparatuses, detection apparatuses, devices, instruments and equipment applied in installation ought to be in compliance with current state weights and measures laws and regulations and their accuracy classes ought to be no lower than those of examined targets.
Article 1.0.6
For concealed works in the installation process, inspections ought to be carried ought before the concealed works are performed and records ought to be made. Continuous installation can only be carried out after it is tested qualified.
Article 1.0.7
During installation process, self-check, cross-check and professional checks ought to be carried out. Inspections ought to be taken in each process and records ought to be made. In the acceptance of works, records ought to be taken as evidences.
Article 1.0.8
Construction of equipment installation projects ought to in compliance with this Code as well as with regulations of national current standards and codes.
Chapter I General Principles Chapter II Preparations of Construction Section One Working Conditions Section Two Examination and Safekeeping of the Uncased Section III Equipment Foundation Chapter III Setting Out Perch and Centering Leveling Chapter IV Anchor Bolt, Iron Gasket and Grouting Section I Anchor Bolt Section II Iron Gasket Section III Grouting Chapter V Assembly Section I General Provisions Section II Assembly of Bolts, Bonding and Dowel Pins Section III Assembly of Couplings Section IV Assembly of Clutches and Detents Section V Assembly of Mating Parts Section VI Assembly of Sliding Bearings Section VII Assembly of Antifriction Bearings Section VIII Assembly of Driving Belts, Chains and Gears Section IX Assembly of Sealing Articles Chapter VI Installation of Hydraulic Pressure, Pneumatic and Lubrication Pipes Section I Preparations for Pipes Section II The Welding and Installation of Pipes Section III Pickling, Flushing, Blowing and Painting of Pipes Chapter VII Test Running Chapter VIII Acceptance of Works Appendix I Tolerance for Equipment Foundation Size and Position Appendix II When the steel wire is pulled horizontally, the distance between two pivots, the diameter of steel wires, matching of heavy hammer and the sagging of steel wires' deadweight. Appendix III Provisions of Specifications, Applicability, Drilled Diameters and Depth Of Yg-type Expansion Anchor Bolt Appendix IV Making Procedures and Specifications of Epoxy Resin Mortar Appendix V Tilted Iron Gasket and Plane Iron Gasket Appendix VI The Mixing Proportion of Shrinkage-compensating Concrete and Mircro-dilatancy Concrete Appendix VII Specifications and Construction Method for Making of Ground Grouting Concrete Appendix VIII The Construction Method of Placing Iron Gasket with Mud-jack Method Appendix IX Common Metal Surface-de-rusting Methods Appendix X The Mixing Proportion of Alkalescent Cleaning Fluid and Emulsification De-oiling Fluid Appendix XI Commonly Used Metal Cleaners Appendix XII Degreaser Appendix XIII Anti-occlusion Substances Appendix XIV Calculation Method for the Rigidity of Bolts and Their Union Pieces Appendix XV Measuring Method for Radial Dispersion and Obliquity of Two Axes in Coupling Assembly Appendix XVI Assembly Method for Mating Parts with Interferences Appendix XVII Commonly-used Coolant for Cold Charge Appendix XVIII Mixing Proportion of Pipeline Acid Pickle Appendix XIX Standard for Pipeline Washing Cleanliness Grades Appendix XX Descriptions of Terms Employed in the Code Epexegesis
Article 1.0.1
The Code is established with the end of supervising construction and acceptance of machinery fitting engineering, ensuring quality and security, promoting technical advancement and enhancing economic benefits.
Article 1.0.2
This Code is compliable to construction and acceptance of various machinery fitting engineering, from uncasing to the zero-load test run of equipment. For equipment requiring loads for test run, the construction and acceptance will be from uncasing to load test run.
Article 1.0.3
Equipment installation projects ought to be constructed according to designs. During construction, if irrationalities are discovered in designs, amending suggestions ought to be put forward in time and the construction can only be recovered according to the altered design after the alternation design is approved.
Article 1.0.4
Materials mainly used for the installed mechanical equipment or for important places of the equipment ought to be in compliance with provisions of the design and product standards and acquired qualified certification.
Article 1.0.5
Different kinds of measurement apparatuses, detection apparatuses, devices, instruments and equipment applied in installation ought to be in compliance with current state weights and measures laws and regulations and their accuracy classes ought to be no lower than those of examined targets.
Article 1.0.6
For concealed works in the installation process, inspections ought to be carried ought before the concealed works are performed and records ought to be made. Continuous installation can only be carried out after it is tested qualified.
Article 1.0.7
During installation process, self-check, cross-check and professional checks ought to be carried out. Inspections ought to be taken in each process and records ought to be made. In the acceptance of works, records ought to be taken as evidences.
Article 1.0.8
Construction of equipment installation projects ought to in compliance with this Code as well as with regulations of national current standards and codes.
Contents of GB 50231-1998
Chapter I General Principles
Chapter II Preparations of Construction
Section One Working Conditions
Section Two Examination and Safekeeping of the Uncased
Section III Equipment Foundation
Chapter III Setting Out Perch and Centering Leveling
Chapter IV Anchor Bolt, Iron Gasket and Grouting
Section I Anchor Bolt
Section II Iron Gasket
Section III Grouting
Chapter V Assembly
Section I General Provisions
Section II Assembly of Bolts, Bonding and Dowel Pins
Section III Assembly of Couplings
Section IV Assembly of Clutches and Detents
Section V Assembly of Mating Parts
Section VI Assembly of Sliding Bearings
Section VII Assembly of Antifriction Bearings
Section VIII Assembly of Driving Belts, Chains and Gears
Section IX Assembly of Sealing Articles
Chapter VI Installation of Hydraulic Pressure, Pneumatic and Lubrication Pipes
Section I Preparations for Pipes
Section II The Welding and Installation of Pipes
Section III Pickling, Flushing, Blowing and Painting of Pipes
Chapter VII Test Running
Chapter VIII Acceptance of Works
Appendix I Tolerance for Equipment Foundation Size and Position
Appendix II When the steel wire is pulled horizontally, the distance between two pivots, the diameter of steel wires, matching of heavy hammer and the sagging of steel wires' deadweight.
Appendix III Provisions of Specifications, Applicability, Drilled Diameters and Depth Of Yg-type Expansion Anchor Bolt
Appendix IV Making Procedures and Specifications of Epoxy Resin Mortar
Appendix V Tilted Iron Gasket and Plane Iron Gasket
Appendix VI The Mixing Proportion of Shrinkage-compensating Concrete and Mircro-dilatancy Concrete
Appendix VII Specifications and Construction Method for Making of Ground Grouting Concrete
Appendix VIII The Construction Method of Placing Iron Gasket with Mud-jack Method
Appendix IX Common Metal Surface-de-rusting Methods
Appendix X The Mixing Proportion of Alkalescent Cleaning Fluid and Emulsification De-oiling Fluid
Appendix XI Commonly Used Metal Cleaners
Appendix XII Degreaser
Appendix XIII Anti-occlusion Substances
Appendix XIV Calculation Method for the Rigidity of Bolts and Their Union Pieces
Appendix XV Measuring Method for Radial Dispersion and Obliquity of Two Axes in Coupling Assembly
Appendix XVI Assembly Method for Mating Parts with Interferences
Appendix XVII Commonly-used Coolant for Cold Charge
Appendix XVIII Mixing Proportion of Pipeline Acid Pickle
Appendix XIX Standard for Pipeline Washing Cleanliness Grades
Appendix XX Descriptions of Terms Employed in the Code
Epexegesis
