Plumbing: Copper Pipe & Fittings Flashcards
Pipes that are measured in nominal sizing have an OD (outside diameter) that is how much larger than the nominal size?
1/8 inch
True or False: Copper pipe is generally less expensive than other types of pipe.
False
Types K, L, M & DWV of copper tubing are measured by what?
A. ID Sizing
B. OD Sizing
C. Nominal Sizing
D. Copper Tubing Sizing
C. Nominal Sizing
What color is DWV Copper?
Yellow
Hint: Think of piss
What color is K copper?
Green
What color is M copper
Red
Hint: Think of M=Masonry and Masonry bricks are Red.
What color is L copper?
Blue
Hint: Think bLue.
What fittings are used to make branches in a pipeline
Tees
Grooved copper fittings are made for connecting copper tubing in what size?
2 - 6 inches
What valve is most often used for draining and freeze protection above ground?
Compression, Stop and Waste Valve
What is the automatic valve that permits the flow of liquid in one direction only and prevents reverse flow?
Check Valve
What kind of Tee is used on branches that are longer than the main line?
Bullhead Tee
How do you measure a pipe that has fitting joined on both ends?
Center to Center
What tool is preferred to cut copper tubing because it makes a cleaner joint and leaves no metal particles?
Handheld Tube Cutter
What do you use to prevent the tube from collapsing while you are bending it by hand?
Tube Bending Spring
