Flashcards in Plumbing: Copper Pipe & Fittings Deck (22)
True or False: Copper pipe is generally less expensive than other types of pipe.
Pipes that are measured in nominal sizing have an OD (outside diameter) that is how much larger than the nominal size?
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?
Hint: Think of piss
What color is K copper?
What color is M copper
Hint: Think of M=Masonry and Masonry bricks are Red.
What color is L copper?
Hint: Think bLue.
What fittings are used to make branches in a pipeline
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?
What kind of Tee is used on branches that are longer than the main line?
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
What kind of joint is used to join soft copper tubing from 1/4 - 2 inches?
What two ways can you groove copper pipe?
By rolling or by cutting
What is type M copper used for?
Hydronic Heating Systems
What is type L copper used for?
Potable hot and cold water lines
What is type K copper used for?
Underground water service
Note: Comes in 60 foot & 120 foot coils.
What is type DWV copper used for?