1 Scope
1.1 This Part specifies the structural types, series parameters and dimensions, permissible loads, materials, manufacture and inspection requirements and selection methods of the lug supports.
1.2 This Part is applicable to the vertical cylindrical vessels whose nominal diameter is not greater than 4000 mm.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this Part of JB/T 4712. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 985 Basic forms and sizes of weld grooves for gas welding, manual arc welding and gas-shielded arc welding
GB/T 1804 General tolerances-tolerances for linear and angular dimensions without individual tolerance indications
JB/T 4730.1-2005 Nondestructive testing of pressure equipments-Part 1: General requirements
JB/T 4730 2-2005 Nondestructive testing of pressure equipments-Part 2: Radiographic testing
JB/T 4730.3-2005 Nondestructive testing of pressure equipments-Part 3: Ultrasonic testing
JB/T 4730.4-2005 Nondestructive testing of pressure equipments-Part 4: Magnetic particle testing
JB/T 4730.5-2005 Nondestructive testing of pressure equipments-Part 5: Penetrant testing
JB/T 4730.6-2005 Nondestructive testing of pressure equipments-Part 6: Eddy current testing
JB/T 4712.3-2007 The following standards are cited：
