ASME SEC. VIII, Div. 1, 2 and 3 구분

 

Design Data 요구사항에 따라 다르게 적용하지만, 일반적으로 아래와 같은 Design Pressure에 따라 구분된다.

 

 

 

Section VIII Division 1
• up to 3,000 psi (20 MPa)
• simple stress calculation formulas
• no stress analysis required
• widespread use for Pressure Vessels

Section VIII Division 2
• up to 10,000 psi (70 MPa)
• user specifies service conditions (user´s design specification - UDS)
• UDS shall be certified by a Registered Professional Engineer (RPE)
• provisions for stress analysis, fatigue, creep, experimental analysis)
• reduced wall thickness
• larger extend of NDE
• higher design stress levels
• Registered Professional Engineer (RPE) shall certify Design Report

 

Section VIII Division 3
• over 10,000 psi
• stress analysis is mandatory
• consideration of prestressed components
• extensive mandatory NDE
• small range of permitted material
• two RPEs are required