Use and Care Manual

ASME A112.18.1-2018/CSA B125.1-18 Plumbing supply fittings
July 2018 © 2018 Canadian Standards Association
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Rain shower — a showerhead designed to be mounted directly over the bather with the spray face
parallel to the floor.
Note: The showerhead can be mounted directly from the ceiling or on an extended shower arm.
Significant surface — an exposed surface that, if blemished, spoils the appearance or affects the
performance of a fitting.
Standard tools — tools that are normally carried by plumbers for installing and maintaining plumbing.
Note: Examples include screwdrivers, key wrenches, flat-jawed wrenches, and pliers.
Substrate — the base material and all of the layers of coating under the final coating.
Supply stop — a valve that is placed immediately upstream of a terminal fitting to shut off the water
supply to the terminal fitting so that it can be serviced or replaced.
Valve — a fitting with a movable part that regulates the flow of water through one or more passages.
Cycling mixing valve — a supply fitting with a single handle that can rotate from the closed position,
through cold to hot, and in the reverse direction back to the closed position.
Single-control mixing valve — a supply fitting with a single handle that turns water on and off and
changes water volume and temperature.
Single-handle mixing valve — a supply fitting with a single handle for changing the discharge water
temperature when the fitting is supplied with both hot and cold water.
Two-handle mixing valve — a supply fitting with separate hot and cold water control valves.
3.2 Abbreviations
The following abbreviations shall apply in this Standard:
CLI —I
critical level
IPSI —I
Iron Pipe Size
NPSI —I
Nominal Pipe Size
NPSMI —I
National Pipe Straight Mechanical
NPTI —I
National Pipe Tapered
PTCI —I
performance test code
PVDI —I
physical vapour deposition
SC-1I —I
service conditions 1
SC-2I —I
service conditions 2