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Chapter 24 Pipe Drawings

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Representing supports, hangers, and transition pieces ... Direction. Amount of slope. Specifying piping details. Support and hangers. Transition pieces ... – PowerPoint PPT presentation

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Title: Chapter 24 Pipe Drawings


1
Engineering Drawing and Design
Sixth Edition
Chapter 24
Pipe Drawings
2
Chapter 24Pipe Drawings
PhotoDisk
3
24-1 Pipes. Kinds of pipesPipe joints,
fittings and valvesPiping drawings
Kohler
4
Kinds of pipes
  • Steel and wrought-iron pipe
  • Carry water, steam, oil, and gas.
  • Used for applications involving high temperatures
    and pressures.

5
Kinds of pipes
  • Cast-iron pipe
  • Often installed underground for water, gas, and
    sewage.
  • Also used for low-pressure steam connections.

6
Kinds of pipes
  • Seamless brass and copper pipe
  • Used extensively in plumbing.
  • Copper tubing
  • Used in plumbing and heating.
  • Used where vibration and misalignment are
    factors.

7
Kinds of pipes
  • Plastic pipe
  • Used extensively in the chemical industry because
    of its corrosion and chemical resistance.

8
Pipe fittings . . .
  • Are parts used to join pipe
  • Three classes
  • Screwed
  • Welded
  • Flanged

9
Valves
  • Are used to stop or to regulate the flow of
    liquids.

10
Commonly used valves
  • Gate valves
  • Control the flow of liquids
  • Gate lifts to allow full flow and lowers to stop
    it completely

Jenkins Bros. Ltd.
11
Commonly used valves
  • Globe valves
  • Control the flow of liquids or gases
  • Instantaneous on-and-off operation

Jenkins Bros. Ltd.
12
Commonly used valves
  • Check valves
  • Permit flow in one direction, but check all
    reverse flow

Jenkins Bros. Ltd.
13
Types of piping drawings
  • Single-line drawings (simplified representation)

14
Types of piping drawings
  • Double-line drawings
  • Used where visual appearance is more important
    than saving time
  • Not recommended for production drawings

15
  • 24-2
  • Isometric Projection of
  • Piping Drawings.
  • Drawing flanges and valves
  • Dimensioning

16
Isometric projection of piping drawings
  • Method for drawing flanges

17
Isometric projection of piping drawings
  • Method for drawing valves

18
Quick Quiz
?
  • What type of valve has instantaneous on-and-off
    operation?
  • A globe valve

Jenkins Bros. Ltd.
19
24-3 Supplementary Piping Information
  • Direction of flow, level, and slope
  • Representing supports, hangers, and transition
    pieces
  • Pipe runs not parallel with coordinate axes



20
Specifying piping details
  • Direction of flow

21
Specifying piping details
  • Level indicators
  • Show the height of pipelines and fittings

22
Specifying piping details
  • Slope
  • Direction
  • Amount of slope

23
Specifying piping details
  • Support and hangers
  • Transition pieces
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