Pentair BERKELEY Manual Del Usuario página 8

Installation • Centrifugal Pump Suction Connection
When Flooded Suction Exits
• 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.
See Pages 10 and 11 for
Swimming Pool Installation requirements.
Short run of straight pipe after reducer
(2 times pipe diameter).
Eccentric Reducer
flat side up.
Straight run, short as possible but
at least 6 times pipe diameter after
pipe fitting to stabilize flow.
Slope upward to pump.
Recommended
Suction
Gauge
Isolation Valve
full open when
pumping.
Support pipe
as required
• 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.
8
Water under
pressure
Maintain minimum liquid
level to prevent vortexing.
Standard or
long radius
elbow.
702 0294