Installation Waukesha Cherry-Burrell
®
Brand C-Series Pump
01/2019 95-03008-IEC Page 13
Supply and Discharge
Piping/Valves
Install the pump and piping system in accordance with local
codes and restrictions. Practices described in this manual are
recommended for optimum performance.
• Use a line size equal to or larger than the connection size on
the pump, especially the inlet supply line.
• Keep the supply line as short and as straight as possible by
minimizing the use of elbows and valves. Avoid up and down
rises that trap air.
• Be certain all joints in the suction line are well-sealed to
pr
event air leaks.
• Maintain a straight length of pipe (Figure 3, item A) at least 8
pipe diameters long at the pump inlet.
• The pump casing on the C-114 through C-328 may be
rotated with the discharge connection pointing in any
direction; the best pump performance will be with the outlet
up, to the left, or 45 degrees in between. These positions
ensure a flooded casing and prevent problems caused by air
in the system. See Figure 4.
• Seal all joints in the suction line w
ell to prevent air from being
sucked into the system.
• If an expansion joint is used, install a pipe anchor between it
an
d the pump.
• The slope of the line depends on the application
requirements; the best pump operation is with the supply line
sloped slightly upward toward the pump to prevent trapped
air. If the system must drain into the pump casing, keep the
downward slope to a minimum or priming problems may
occur. See Figure 5.
• Support the supply and discharge piping near the pump so
tha
t no strain is put on the pump casing. See Figure 5, item
A.
• Install shutoff valves to isolate the pump from the supply and
discha
rge lines to allow the pump to be serviced without
draining the system.
The pump and piping may contain sharp edges. Wear gloves to
help avoid injuries from these hazards.
Figure 3 - Straight Pipe Length
Figure 4 - Recommended Discharge
Positions
Figure 5 - Pipe Supports
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