This specification is applicable to the design of industrial metal pipelines with a nominal pressure less than or equal to 42MPa and industrial metal pipelines with non-metallic linings. This specification is not applicable to the design of the following pipelines: 1. Pipes belonging to equipment or machines designed by the manufacturer; 2. Special pipelines for nuclear power plants; 3. Long-distance pipelines; 4. Pipes in mines; 5. Pipes for heating, ventilation and air conditioning and pipelines with non-circular cross-sections; 6. Underground or indoor water supply and drainage and fire water supply pipelines; 7. Pipes for foam carbon dioxide and other fire extinguishing systems. GB 50316-2000 Industrial Metal Pipe Design Specification (2005 Edition) GB50316-2000 Standard Download Decompression Password: www.bzxz.net

Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
GB50316—2000
Design code for industrial metallic piping
Design code for industrial metallic piping
2000—09—26
2001—01—01
State Administration of Quality and Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
Jointly Issued
Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Design code for industrial metallic piping
Design code for industrial metallic piping pipingGB50316—2000
Editing department: Former Ministry of Chemical Industry of the People's Republic of ChinaApproving department: Ministry of Construction of the People's Republic of ChinaEffective dateJanuary 1, 2001
2000Beijing
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Notice on the Release of the National Standard "Industrial Metal Piping Design Specification"
Jianbiao [2000] No. 199
In accordance with the requirements of the "1991 Engineering Construction National Standard Formulation and Revision Plan" (Jizonghe [1991] No. 290) of the State Planning Commission, the "Industrial Metal Piping Design Specification" jointly formulated by the former Ministry of Chemical Industry and relevant departments has been reviewed and approved by relevant departments as a mandatory national standard, numbered GB50316-2000, and will be implemented on January 1, 2001.
This specification is managed by the State Administration of Petroleum and Chemical Industry, China Huanqiu Chemical Engineering Company is responsible for the specific interpretation, and the Standard and Quota Research Institute of the Ministry of Construction organizes China Planning Press to publish and distribute it.
Ministry of Construction of the People's Republic of China
September 26, 2000
Engineering Construction Standards Full-text Information System
Engineering Construction Standards Full-text Information System
2 Terms and Symbols
2.1. Terminology
2.2 Symbols.
3 Design conditions and design basis.
3.1 Design conditions
3.2 Design basis
General provisions
Service temperature of metal materials
Test requirements for low-temperature toughness of metal materials
4.4 Requirements for the use of materials
5 Selection of pipeline components
General provisions
Pipes...
Bends and mitered bends
Pipe fittings and branch connections
Fasteners
Requirements for the selection of connection structures of pipeline components
Special pipeline parts
Pipe components with non-metallic linings
Engineering Construction Standards Full-text Information System
(1)
(2)
(2)
(13)
**(13)
(16)
(24)
：(24)
..(24)||tt ||.*(24)
·(27)
(30)
.(30)
(30)
...(31)
(31)
(36)
(37)
(38)
..(39)
....(41)
(42)
Engineering construction standards complete
6 Calculation of compressive strength of metal pipe components
General provisions·
6.2 Straight pipe·
6.3 Mitered elbow
Reinforcement of branch pipe connection
Non-standard reducer
Special flange and blind plate
Determination of pipe diameter and calculation of pressure loss
Determination of pipe diameter
Pressure loss of single-phase flow pipeline
Pressure loss of gas-liquid two-phase flow pipeline·
Pipeline layout
Above-ground pipeline
General provisions
Clearance height and clearance of pipelines·
General layout requirements
Layout requirements for Class B fluid pipelines
Arrangement of valves·
Setting of high-point exhaust and low-point drainage
Location of vents
Pipelines in trenches
Buried pipelines
9Expansion and flexibility of metal pipelines
General provisions
Scope of calculation of pipeline flexibility Scope and method
Basic requirements for pipeline flexibility calculation.
Displacement stress of pipeline·
Force exerted by pipeline on equipment or end points
Measures to improve pipeline flexibility,
Engineering Construction Standard Full Text Information System
(43)
(43)
(47)
(54)
(58)
...(59)
(61)
+*******(61)
(62)
(63)
(6 5)
(65)
*(65)
(65)
(66)
(68)
(69)
. (70)
（71)
（73)
（73）
（73）
（75）
（80)
Engineering Construction Standard Full-text Information System
Pipeline supports and hangers
General provisions
Setting and maximum spacing of supports and hangers
Support and hanger loads
10.4 Materials and allowable stresses
Electricity charges
Support and hanger structure Structural design and selection
Design requirements for component manufacturing, pipeline construction and inspection 11.1
General provisions
Metal welding
Metal heat treatment
...+.+...
Other requirements
12 Heat insulation, sound insulation, noise reduction and corrosion protection
12.2 Sound insulation and noise reduction
12.3 Corrosion protection and painting
13 Supplementary regulations for pipelines conveying Class A1 and Class A2 fluids 13.1 Supplementary provisions for Class 1 fluid pipelines…13.2
. Supplementary provisions for Class 2 fluid pipelines
14 Safety provisions for pipeline systems
General provisions
Overpressure protection
Other requirements
Appendix A
Appendix B
Allowable stress of metal pipeline materials
Physical properties of metal materials
Engineering construction standards full-text information system
Electricity and electricity||t t||: (82)
(82)
*(82)
(83)
(84)
(84)
......(88)
(88)
(88)
(88)
(88)
.(89)
(90)
(92)
.…(92)
. (93)Www.bzxZ.net
*（93)
（94)
*****(96)
（98)
（98)
（98)
（99)
（99)
.(100)
（100）
（102)
（122)
Engineering Construction Standard Full-text Information System
Appendix C Operating temperature range of non-metallic lining materials..
......(124)
Regulations on the thickness of steel pipes and steel pipe fittings
Appendix D||tt| |Flexibility coefficient and stress intensification factor
Appendix E
........(127)
Appendix F
Distance between outdoor underground pipelines and railways, roads and buildings**(136)Appendix G
Appendix H
Appendix J
Appendix K
Provisions for pipeline heat treatment
Welding structure of pipelines
Non-destructive testing of pipelines
Explanation of terms used in this specification
Additional explanation
Engineering Construction Standard Full Text Information System
(140)
...0...0.
..*(147)
Engineering Construction Standard Full Text Information System
1.0.1 This specification is formulated to improve the design level of industrial metal pipeline engineering and ensure the design quality.
1.0.2 This specification is applicable to the design of industrial metal pipelines with a nominal pressure less than or equal to 42MPa and industrial metal pipelines with non-metallic linings. 1.0.3 This specification is not applicable to the design of the following pipelines: 1.0.3.1
Pipes belonging to equipment or machines designed by the manufacturer as a whole; special pipelines for nuclear power plants;
Long-distance pipelines;
1.0.3.4 Pipes in mines;
Pipes for heating, ventilation and air conditioning and pipelines with non-circular cross-sections; 1.0.3.5
Underground or indoor water supply and drainage and fire water supply pipelines; pipelines for foam, carbon dioxide and other fire extinguishing systems. 1.0.3.7
Unless otherwise specified, the pressures described in this specification shall be gauge pressures. 1.0.4
In addition to implementing this specification, the design of industrial metal pipelines shall also comply with the provisions of relevant current national standards.
Engineering Construction Standards Full-text Information System
Engineering Construction Standards Full-text Information System
2 Terms and Symbols
2.1 Terms
2.1.1 Category A1 fluid
categoryAl fluid
In this specification, it refers to highly toxic fluids. If a very small amount of fluid leaks into the environment during transportation, it can cause severe poisoning when inhaled or comes into contact with the human body, and it cannot be cured after the contact is broken. It is equivalent to the poison of level I (extremely hazardous) in the current national standard "Classification of Hazards of Occupational Exposure to Toxic Substances" GB5044. 2.1.2 Category A2 fluid
category A2 fluid
In this specification, it refers to toxic fluids. After contacting this type of fluid, there will be varying degrees of poisoning, which can be cured after the contact is broken. Equivalent to poisons of level I and below (high, moderate, and mild hazards) in GB5044 "Classification of Hazards of Occupational Exposure to Toxic Substances". 2.1.3 Category B fluids
categoryBfluid
In this specification, these fluids are a gas or a liquid that can flash to produce gas under environmental or operating conditions. These fluids can be ignited and burn continuously in the air. 2.1.4 Category D fluids
category D fluid
refers to non-flammable, non-toxic fluids with a design pressure less than or equal to 1.0MPa and a design temperature higher than -20 to 186°C.
2.1.5 Category C fluids
categoryCfluid
refers to non-flammable, non-toxic fluids excluding Category D fluids. 2.1.6 Pipeline
piping
It is composed of pipeline components, pipeline supports and hangers, etc., and is used to transport, distribute, mix, separate, discharge, measure or control the flow of fluid. 2.1.7 Piping system
pipingsystem
Referred to as piping system, it is a group of pipes connected by multiple pipes divided according to fluid and design conditions.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
2.1.8 Piping components
Piping components
Components used to connect or assemble into pipelines, including pipes, pipe fittings, flanges, gaskets, fasteners, valves and special pipeline parts, etc. 2.1.9 Piping specialties refer to non-standard components that are specially manufactured according to engineering design conditions, including expansion joints, compensators, special valves, bursting discs, flame arresters, filters, flexible joints and hoses, etc.
2.1.10 Miter bends
Miter bends are welded bends made of pipes or steel plates, and are made of pipe sections with bevel welds that are not perpendicular to the longitudinal axis of the pipe. 2.1.11 Branch connectlons
Branch connectlons
The structure of branch pipes leading out from the main pipe, including integrally reinforced pipe fittings and branch pipe connections with or without reinforced welded structures. Raised face
It is a form of flange sealing surface, with the raised flat sealing surface on the inside of the bolt hole, codenamed RF.
2.1.13 Full face
full face
Also called full plane, it is a form of flange sealing surface, and the surface within the outer diameter of the flange is a flat sealing surface, code FF.
2.1.14 Liquid collecting pocket
liquid collecting pocket (drip leg) is a bag-shaped device set at the low point of the gas or steam pipeline to collect condensate. 2.1.15
pipe supports and hangers
a general term for various structures used to support pipelines or restrict the displacement of pipelines, but does not include civil engineering structures.
2.1.16 Anchors
anchors
supports that can prevent any linear and angular displacement of the pipe system at the supporting point and can withstand various loads in all directions of the pipeline. 2.1.17 Sliding supports
sliding supports
Supports with sliding bearing surfaces can constrain the vertical downward displacement of the pipeline, not limit the horizontal displacement of the pipeline during thermal expansion or contraction, and bear vertical loads including self-weight.
2.1.18 Rigid hangers
rigidhangers
Pipe rack structures with hinged hangers can constrain the vertical downward displacement of the pipeline, not limit the horizontal displacement of the pipeline during thermal expansion or contraction, and bear vertical loads including self-weight.
2.1.19 Guides
guides
Supports that can prevent rotation caused by moments and torques, can guide in one or more directions, but the pipeline can be displaced along a given axial direction. When used on horizontal pipelines, the supports also bear vertical loads including self-weight. Usually the structure of the guide frame also has the function of limiting a certain axis or two axes. 2.1.20 Limit frame
restraints
A bracket that can limit the displacement of the pipeline in a specified direction at a certain point (it can be one or more linear displacements or angular displacements in one or more directions). A limit frame with a specified displacement value is called a fixed value limit frame.
2.1.21 Vibration eliminators
Vibrating eliminators
A device that can control the high-frequency low-amplitude vibration or low-frequency high-amplitude shaking of the piping system, without limiting the thermal expansion and contraction of the piping system.
2.1.22 Damping devices
snubbers (dampers)
A device that can control the instantaneous impact load of the pipeline or the high-speed vibration displacement of the piping system, without limiting the thermal expansion and contraction of the piping system.
2.1.23 Severe cyclic condition
severe cyclic condition
refers to the condition that the maximum displacement stress range g calculated for the pipeline exceeds 0.8 times the allowable displacement stress range (i.e. 0.8[) and the equivalent cycle number N is greater than 7000 or the condition that produces the same effect determined by the design.
2.1.24 Stress Intensification Factor
stressintensificatianfactor
The ratio of the maximum bending stress that produces fatigue damage in the components of non-straight pipes under the action of bending moment to the maximum bending stress that produces fatigue damage in straight pipes subjected to the same bending moment, the same diameter and thickness is called the stress intensification factor. Because the bending moment and the pipeline components are in different planes, there are stress intensification factors in the plane and out of the plane. displacementstress range
2.1.25 Displacement stress range
The stress calculated by the displacement caused by the thermal expansion of the pipeline is called the displacement stress range. The stress calculated from the full compensation value of the lowest temperature to the highest temperature is called the calculated maximum displacement stress range.
2.1.26 Additional displacement
externallyimposeddisplacements refers to the displacement added to the calculated piping system at the end point of the calculated piping system due to the thermal expansion or other displacement of the equipment or other connecting pipes. 2.1.27 Cold-drawn cold spring
Elastic deformation pre-applied to the pipeline during installation to produce the expected initial displacement and stress, so as to reduce the force and torque on the pipe end in the initial hot state. 2.1.28 Flexibility factor
Flexibility factor
Indicates the degree to which the flexibility of a pipeline component increases relative to a straight pipe when subjected to torque. That is: the ratio of the angular deformation per unit length of the component produced by a given torque in the pipeline component to the angular deformation of a straight pipe of the same diameter and thickness subjected to the same torque.
Utility piping
Utility piping
Compared to process piping, utility piping refers to the pipeline for common fluids in various processes of a factory (installation).
2.1.30 Piping and instrument diagram
piping and instrument diagram abbreviated as PmID (or PID. In addition to the equipment, this diagram mainly shows the connected piping system, instrument symbols and pipeline identification codes. 2.2 Symbols
A-the reinforcement area required for weakening the main pipe opening A-the excess metal area within the reinforcement range other than the calculated thickness and thickness addition required for the main pipe to withstand internal and external pressures A2
The excess metal area within the reinforcement range other than the calculated thickness and thickness addition required for the branch pipe to withstand internal and external pressures Engineering Construction Standard Full Text Information System
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.