chapter 7 Flashcards
*The lightest weight piping are…
M and DWV
*ACR tubing is measured by the….
outside diameter (used by hvac)
*Nominal tubing is measured by the….
inside diameter (used by plummers)
a bundle of tubing is called a….
line set
tubing insulation helps how?
-prevents heat transfer between the fluid in the pipe and the surrounding air
-reduces condensation on cold water lines or suction lines
-increases the efficiency of hydronic systems
brazing temperatures range
1205 - 1550 degrees
brazing alloys contain
15% - 60% silver or phosphorus copper
prevents oxidation from forming on the surfaces of the pipes being joined and in the filler materials
fluxing
*plastic pipe for drains, waste, and venting
ABS
*plastic pipe for water, gas, and irrigation
PE
*Plastic pipe used for high pressure or low pressure applications
PVC
*plastic pipe used for temperatures up to 180 degrees and for pressures up to 100 psig
CPVC
what is the piping system for?
provides the path for refrigerant flow between system components
medium weight copper piping, most commonly used
L
copper tubing that is meant to be bent
soft drawn
