1. Plumbing Systems

2. Student Learning Objectives
Identify plumbing cutting tools
Identify and select pipe
Understand types of piping tubing and fittings

3. What is Plumbing
Plumbing means installing and repairing water pipes and fixtures.
Includes pipes for handling

4. Pipe Terms Pipe refers to rigid tube-like material.
Fittings are parts used to connect pipe or other objects.
Tubing refers to pipe that is flexible enough to bend.

5. Tools for Cutting Plumbing
Tools useful for holding pipe and fittings are the bench yoke vise, chain wrench and pipe wrench
Cutting tools include hacksaw, file, pipe cutter, and tube cutters.

8. Student Learning Objectives
Identify plumbing cutting tools
Identify and select pipe
Understand types of piping tubing and fittings

9. Selecting Pipe
Nominal (identifying) size is generally based on the inside diameter.
Inside diameter is ID and outside diameter is listed as OD
Common sizes are 1/4, 3/8, 1/2, 3/4,& 1”

10. Steel Pipe
Steel pipe can be purchased as black pipe or galvanized pipe.
This pipe is used very little now and has been replaced by copper and plastic.
It is expensive and does not last as long as the others.

11. Copper Pipe
Pipe made of copper is frequently referred to as tubing.

12. Copper Pipe
Copper is frequently preferred to steel for water lines because it is:
Corrosive resistant
Easy to handle
Has been known to withstand freezing without breaking.

13. Disadvantages of Copper Pipe
High initial cost
High degree of expansion
Bad taste created if water is acidic
Can also leave green stains in sinks

14. Flaring
Flexible copper tubing can be joined by flaring the ends and connecting with bell type fittings.
Bell type fittings are used to create a gas- or liquid-tight seal

15. Plastic Pipe
Plastic pipe is used extensively in potable water systems.
This is the easiest pipe to install

16. Plastic Pipe Mostly has been used for cold-water lines
Recently has been coded for hot-water

17. Polyethylene (PE)
Polyethylene pipe has been used for many decades for cold-water lines.
It is black, somewhat flexible and comes in rolls

18. Polyethylene (PE)
PE is assembled by pushing the pipe over grooved section of fitting and secured using a rustproof stainless steel clamp
It can be easily removed using a hacksaw

19. PVC and CPVC
Polyvinyl Chloride (PVC) and Chlorinated Polyvinyl Chloride (CPVC) are rigid and usual gray or white in appearance.
PVC = Cold water
CPVC= Hot water

20. PVC PVC is quite easy to install
Has many uses for draining toilets, tubs and sinks.
Assembled using liquid cement

21. Acrylonitrate-butadiene-stryrene (ABS)
Used for underground applications such as sewage disposal.
Tests seem to indicate it will last almost indefinitely.

22. Student Learning Objectives
Identify plumbing cutting tools
Identify and select pipe
Understand types of piping tubing and fittings

23. Pipe Fittings Pipe fittings are used to connect pipe to other pipe.
Knowing each connection type will help you determine what you need for a project.

24. Pipe Fittings Connecting different types of pipe are adapters.
Bushings and reducers connect different size pipe.

25. Pipe Fittings Elbow is where flow changes direction
Tee is where flow splits into two directions

26. Pipe Fittings Coupling connects like pieces of pipe.
Cap is closing a pipe end.

27. Connecting Steel Pipe
Short ends of steel pipe are hard to thread on job so they come threaded.
Teflon tape is needed to make a watertight and gastight seal.

28. Student Learning Objectives
Identify plumbing cutting tools
Identify and select pipe
Understand types of piping tubing and fittings

29. What questions do you have?