10
Installation & Connection
Handling
When lifting the pump, use the motor eyebolts.
Installation
The pump should be installed in a well ventilated and frost-free position. The distance between pump-
motor and other objects should be at least 6 inches in order to have enough air to cool the motor.
The inlet pipe shall be as short as possible in order to reduce the head loss of the inlet.
Ensure that the check valve is installed in the pipe line system before the pump is installed. If pump is
used for boiler water supply, a check valve must be installed in the piping between pump and boiler.
Pump shall be installed in a concrete base or other similar base with suitable height. It can also be
installed in fixed grounds or fixed brackets on the wall.
Pay attention not to let the weight of pipe system on pump to prevent pump from damage.
When installation, motor is not allowed to be hung upside down.
Arrow on the inlet and outlet chamber shows the direction of flow of liquid through the pump. Check
whether the liquid can flow easily before starting pump.
Before pump installation, the inlet pipe line shall be cleaned. If there is impurities in the pipe, it is
necessary to install a strainer at 20 - 40 inches in front of the pump inlet (particularly recommended for
pump with flow less than 8 m³/h).
The air locks shall be avoided when installing the inlet pipe line. See Fig. 3.
If the outlet globe valve might be closed (or the flow is decreased to be zero), a bypass shall be installed
in outlet pipeline to ensure adequate lubricating and cooling water to pass the pump.
CAUTION
Figure 2
Figure 3
Air
Air
Air
Wrong
Correct
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