3
GROUTING THE INSTALLATION. Grouting the baseplate
prevents lateral movement of the baseplate and improves
the vibration absorbing characteristics of the foundation by
increasing its mass. A wooden dam should be constructed
around the baseplate to contain the grout while it is being
poured. The dam can be built tight against the baseplate or
slightly removed from it as desired.
The entire baseplate should be completely filled with a non-
shrinkable type grout. The grout should be puddled frequently
to remove any air bubbles from the grout.
DISCHARGE PIPING. Discharge piping should also be short
and direct as possible, with few elbows and fittings, to reduce
head loss from friction.
PIPE. The discharge pipe diameter should be the same as, or
larger than, the discharge nozzle diameter. The size of discharge
pipe to be used is dependent upon the application.
DISCHARGE VALVES. The discharge piping should include a
check valve and a gate valve. The check valve should be located
between the gate valve and the pump. If an increaser is used in
the discharge piping, the increaser should be installed between the
pump nozzle and the check valve. The check valve protects against
a reverse flow of the liquid if the driver fails. Refer to Fig. 5.
The gate valve is used in the priming operation, as a throttling
valve to control pump volume and to shut down the pump for
inspection and maintenance.
ELECTRICAL WIRING. Normally, your pump will be sup-
plied with an attached drive motor. The motor should be wired
in accordance with the wiring diagram found on the motor
nameplate. Be sure the voltage, frequency and phase of your
power supply corresponds with the nameplate data. It is
advisable to provide a separate switch and overload protection
for your pump motor to protect against power failure in some
other area. Conversely, if the pump motor develops electrical
problems, it will be isolated from other equipment.
PRESTARTING INSTRUCTION. The coupling halves should be
connected. Prior to connection, however, the drive motor should
be started to make sure the direction of rotation is the same as the
direction indicated by the arrow on the pump casing.
CORRECT
DISCHARGE
SUCTION
DISCHARGE
SUCTION
INCORRECT
AIR POCKET
STRAIGHT TAPER REDUCER
ECCENTRIC TAPER REDUCER
Figure 3. Installation of tapered reducers.
CORRECT
PATH OF
WATER
SUCTION
INCORRECT
LESS DESIRABLE
IF ELBOW IS NECESSARY, IT
SHOULD BE THE LONG RADIUS TYPE.
DISTANCE EQUAL
TWICE DIAMETER
OF INLET PIPE
Figure 4. Installation of elbows.
CHECK
VALVE
DISCHARGE PIPING
GATE
VALVE
Figure 5. Gate valve and check valve.
MODELS 411-412-413
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