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Pipe and Tube Thickness

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  1. Pipe and Tube Thickness BgBataller Instructor 3, ChEDept CEAT-UPLB

  2. Pipe and Tube Thickness • Ferrous Materials Rearranging,

  3. Pipe and Tube Thickness • Non-Ferrous Materials Limitations:

  4. Pipe and Tube Thickness • Allowance

  5. Pipe and Tube Thickness • Steam Application Applicable for STEEL or WROUGHT IRON pipe whose NPS ≤ 4 inches

  6. Pipe and Tube Thickness • Steam Application Applicable for STEEL or WROUGHT IRON pipe whose NPS >4 inches

  7. Pipe and Tube Thickness • Oil Application >> use steam application provided that the allowable stress (S) is multiplied by 1.25

  8. Pipe and Tube Thickness • Cast Iron Pipe >> equation for steam application is also applicable >> Add allowance to the internal pressure

  9. Pipe and Tube Thickness • Cast Iron Pipe >> Allowable stress (S) and Allowances (C)

  10. Pipe and Tube Thickness • Plastics • PVC • PE, PB

  11. Pipe and Tube Thickness • Plastics • Fiberglass

  12. Sample Problems Problem 1 Pipe is to be specified for a water volumetric flowrate of 200 L/min and working temperature of 30ºC. Compute for the typical pipe diameter.

  13. Sample Problems Problem 2 Pipe is to be specified for a water flowrate of 1500 L/min at 30ºC. Estimate for the minimum diameter required based on maximum fluid velocity

  14. Sample Problems Problem 3 Sulfuric acid with a volume flowrate of 50 L/min and temperature 30ºC is supplied through a pipeline. Calculate the pipe minimum diameter required.

  15. Sample Problems Problem 4 Compute for the pipe diameter requirement for the liquid flowing at of 550 L/min based on the reasonable (maximum) velocity presented by Backhurst and Harker (1973).

  16. Sample Problems Problem 5 Methanol with a flowrate of 75 L/min is pumped from a storage tank. Estimate the minimum pipeline diameter (Sch 40) at the pump suction connecting the storage tank.

  17. Sample Problems Problem 6 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.

  18. Sample Problems Problem 7 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.