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Pipe and Tube Thickness. BGBataller Instructor 7, ChE Dept CEAT-UPLB. Pipe and Tube Thickness. Ferrous Materials. Rearranging, . Ferrous Material Allowable Stress. Pipe and Tube Thickness. Allowance. Pipe and Tube Thickness. Non-Ferrous Materials. Limitations:. - PowerPoint PPT Presentation
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Pipe and Tube Thickness
BGBatallerInstructor 7, ChE Dept
CEAT-UPLB
Pipe and Tube Thickness• Ferrous Materials
Rearranging,
Ferrous Material Allowable Stress
Pipe and Tube Thickness
• Allowance
Pipe and Tube Thickness
• Non-Ferrous Materials
Limitations:
Non-Ferrous Mat’l Allowable Stress
Pipe and Tube Thickness
• Allowance
Pipe and Tube Thickness• Steam Application
Applicable for STEEL or WROUGHT IRON pipe whose NPS ≤ 4 inches
Pipe and Tube Thickness• Steam Application
Applicable for STEEL or WROUGHT IRON pipe whose NPS > 4 inches
Pipe and Tube Thickness
• Oil Application
>> use steam application provided that the allowable stress (S) is multiplied by
1.25
Pipe and Tube Thickness
• Cast Iron Pipe>> equation for steam application is also
applicable>> Add allowance to the internal pressure
Pipe and Tube Thickness
• Cast Iron Pipe>> Allowable stress (S) and Allowances (C)
Pipe and Tube Thickness
• Plastics– PVC
– PE, PB
Pipe and Tube Thickness
• Plastics– Fiberglass
Sample Problems
Problem 1
Compute for the pipe thickness of a 2 in (actual outside diameter) S-17 seamless steel pipe with a working pressure and temperature of 300 psi and 650 ºF respectively.
Sample Problems
Problem 2
Calculate the thickness needed of a threaded steam bronze pipe ( for gas application ) with nominal diameter of 3 in and working temperature and pressure of 250 F and 200 psi respectively.