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         Pressure Vessel Safety 

Awareness Tutorial        

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Introduction
Basics
Pressure
Force
Pressure Vessels
Types
Stresses
Calculations
Factor of Safety
Safety Devices
Rupture Disks
Relief Valves
Safety Relief Valves
Safety Valves
Codes
Names Plates
Repairs
Conclusion
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A pressure vessel has to retain to pressure.  In doing this the pressure applies two types of stresses in a pressure vessel.  They are circumferential and longitudinal.  

 

What is important to remember is longitudinal stresses are half as much as the circumferential stresses.  Therefore, we can say that longitudinal strength is twice as strong as circumferential strength.  This is only true for illustration purposes.    

 

 

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Last modified: March 12, 2005