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Plumbing terminology

Terms in this set (28)

ID
Inside diameter of the pipe.
OD
outside diameter of the pipe
name two factors that could cause two different types of pipe or tubing to have the same OD, but allow different rates of flow?
the wall thickness and material affects ID AND OD
schedule
classification of pipe indicating the wall thickness of the pipe
schedule 40 pipe is the most common, with a wall thickness of about ____
1/4"
what does "DWV" stand for? What is this type of pipe used for?
drain waste vent. pipe is used for installing wastewater systems
what does the term "Potable" mean
free from impurities that could cause disease; safe for human consumption
can any type of pipe be used for both water coming into the house as well as water going out?
no
PVC pipe, used in gravity fed drains, is connected together using a glue called ______ ________ _______
solvent welding cement
Is Foam Core PVC rated for use with any kind of pressurized system? This means it can only be used with systems that take water into a residence or out of a residence?
No, out of a residence
CPVC is different from PVC in what ways?
the glue and structure core
does CPVC glue require a primer?
not all CPVC glue manufacturers require primer.
CPVC is more economical replacement for what type of pipe in residential homes?
copper
PVC is a more economical replacement for DWV than what type of pipe in residential homes?
cast iron/copper
ABS pipe is ____ in color, where PVC pipe is ____ in color
1. ____ (black) 2._____ (white)
ABS pipe can be used in fresh water, pressurized systems
False
Polyethylene pipe is black, roll piping material that connects with barbed brass inserts. Where is this material NOT allowed to be used
interior of residential buildings
where do you think PE (polyethylene) pipe would be used?
outside, run water to a sprinkler system in a yard
What does PEX stand for?
crossed-linked polyethylene
Where is PEX most commonly used?
residential housing
Is PEX compatible with PE pipe?Why or why not?
No, they use different fittings
What are the colors that PEX is available in?
clear or white, red, blue
What similar product has PEX replaced? What was/is the main difference between the two?
Polybutylene, PB was outlawed in 1995
Copper tubing is available in 4 different types. The types are defined by their ____ _____
wall thickness
Name a few applications where copper pipe is used in a residential environment
oil line, water supply, and air lines
What is preferred use for cast iron pipe in a residential DWV system? Where specifically and why?
for the main soil pipe, because its quiet
No hub connectors are also called ______
Fernco
Galvanized and black steel pipe have been used for water systems in the past, but are mainly used for what other category of plumbing?
gas lines
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