Pentair Berkeley Manual Del Usuario página 10

Installation • Suction Connection
When Flooded Suction Exits
Pump driven by remote power
source, direct coupling or
pulley/belt connection.
See foundation
section.
Straig t run, s ort as possible but
at least
pipe fitting to stabili e flow.
Slope upward to pump.
• Use pipe, tubing, or reinforced hose to make suction
connection. Hose must have sufficient strength to
resist collapse under the atmospheric pressure
differential that may occur while pump is running.
• It is important, even with a flooded suction condition,
that proper pipe fittings are used so water is delivered
to impeller eye with a smooth flow and consistent
velocity.
• Suction pipe size should be at least one commercial
pipe size larger than opening of pipe inlet. Flow
velocity should not exceed 8 ft./sec.
S ort run of straig t pipe after reducer
times pipe diameter .
ccentric educer
flat side up.
times pipe diameter after
Recommended
Suction
auge
solation alve
full open w en
pumping.
Support pipe
as re uired
• An isolation valve is used in a pressurized suction
pipe to permit servicing pump.
• Piping run and connection fittings should be properly
aligned and independently supported to reduce strain
on pump case.
• If solids are present, a strainer should be used to
protect the pump.
Water under
pressure
aintain minimum li uid
level to prevent vorte ing.
Standard or
long radius
elbow.
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