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Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Design Conditions and Design Criteria
4.1 Design conditions
4.1.1 Design pressure
4.1.2 Design temperature
4.1.3 Load conditions
4.1.4 Additional thickness
4.1.5 Environmental influence
4.1.6 Buried piping
4.2 Design criteria
4.2.1 Pressure-temperature design criteria for the piping components
4.2.2 Pressure-temperature design criteria for the piping
4.2.3 Permissible range of variation of pressure and temperature
4.2.4 Allowable stress
4.2.5 Longitudinal welded joint coefficientφW
4.2.6 Casting quality factor φC
5 Piping Components
5.1 Selection of piping components
5.1.1 General provisions
5.1.2 Pipes and butt-welding fittings
5.1.3 Bends
5.1.4 Miter elbows (creased pipes)
5.1.5 Short radius elbows
5.1.6 Lap joints
5.1.7 Branch connection and fittings
5.1.8 Flanges
5.1.9 Gaskets
5.1.10 Fasteners
5.1.11 Valves
5.2 Selection of the connection types of piping components
5.2.1 General provisions
5.2.2 Welded joints
5.2.3 Flange connections
5.2.4 Expansion joints
5.2.5 Pipe threaded joints with thread sealing
5.2.6 Straight threaded joints
5.2.7 Connection of flared and non-flared press fittings
5.2.8 Filler joints
5.2.9 Special pipe joints
5.3 Types and dimensions of the piping components
6 Pressure design of piping components
6.1 Straight pipes
6.2 Bends or elbows
6.3 Miter elbows
6.4 Pressure design of pipe flanges and blind flanges
6.5 Blind plates
6.6 Other piping components
6.7 Equivalent area reinforcement method for branch connections
6.7.1 Symbols
6.7.2 Scope of application of the equivalent area reinforcement method
6.7.3 Conditions in which reinforcement is not required
6.7.5 Reinforcement calculation for branch connections with extruded joints
6.7.6 Reinforcement design of branch connections on the seal head
6.8 Pressure area method for integrally formed tee joints
7 Piping stress analysis
7.1 General provisions
7.2 Loads and load combinations
7.2.1 Loads and classification
7.2.2 Load combinations to be considered
7.2.3 Conditions and requirements for the temporary loads to be considered
7.3 Stress analysis and intensity conditions
7.3.1 Stress intensity conditions for permanent loads
7.3.2 Stress intensity conditions for the combination of permanent loads and temporary loads
7.3.3 Flexibility analysis
7.3.4 Determination of support reaction
7.4 Pipe supports and hangers
7.4.1 General requirements
7.4.2 Material requirements
7.4.3 Design requirements
7.4.4 Arrangement requirements
Annex A (Informative) General international standards for petrochemical valves
Annex B (Informative) Examples of calculation
Annex C (Normative) Flexibility factor and stress intensification factor
Annex D (Informative) Calculation of wind load and earthquake load
D.1 Calculation of horizontal wind force
D.2 Calculation of horizontal seismic force and seismic bending moment
Annex E (Informative) Analysis of the dynamic load produced by the opening and closing of the valve
E.1 Rapid closing of the valve
E.2 Opening of the relief valve
Annex F (Normative) Expansion joints
F.1 Requirements for piping design
F.1.1 Design conditions of the expansion joints
F.1.2 Piping design requirements
F.2 Requirements for the expansion joint manufacturer
F.2.1 Design of the expansion joint
F.2.2 Manufacture, inspection and pressure test of the expansion joint
Annex G (Informative) Pressure area method for reinforcement calculation |
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