Piping Drawings Questions

• This type of pipe is commonly used for water, steam, oil, and gas:
• These types of pipes are generally connected with bell and spigot joints or flanged joints:
• This type of drawing shows two lines representing the pipe diameter:
• This type of pipe is commonly used for water or gas service, and also as soil pipe:
• When dimensioning piping drawings, you give the lengths of all runs of this type:
• This is used in applications for nonferrous construction:
• In this type of drawing, vertical pipes may be revolved into the horizontal plane:
• Axonometric drawings are seldom used in piping drawings.
• A wide variety of plastic pipe, both rigid and flexible, is used in construction.
• Single-line drawings show the centerline of the pipe.
• PVC joints are made with flared joints or solder joints.
• Piping may also be shown in orthographic projection.
• Copper tubing is not suitable for process work, for plumbing, or heating systems.
• Joints between pipes, fittings, and valves may be screwed or flanged but not welded or soldered.
• Valves are used to stop or regulate the flow of fluids in a pipeline.
• Copper pipe is brittle, and settling can cause fracture unless the joints are sufficiently flexible.
• In a developed piping drawing, horizontal pipes may be revolved into the vertical plane so the entire installation can be shown on one plane.
• Brass and copper pipe is used in plumbing for supply, soil, waste, drain, and vent lines.
• Brass and copper pipe should be joined with fittings of copper-base alloy to avoid corrosion.
• When dimensioning piping drawings, it is not necessary to indicate the size of each pipe.