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5.Starting the pump
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5.
Starting the pump
Prior to starting the pump, carefully read the instructions in Section 4.
49H
Installation
.
5.1.
START-UP
Carefully read Section 8.
H
Technical Specifications
. INOXPA will not be liable for improper use of the
equipment.
NEVER touch the pump or the lines if hot liquids are being pumped.
5.1.1.
Checks before starting the pump
·
Completely open the shut-off valves on the suction and discharge lines.
·
If liquid does not flow towards the pump, fill it with the liquid to be pumped.
The pump must never turn dry.
·
Check that the direction of rotation of the motor is correct.
5.1.2.
Checks when starting the pump
·
Check that the pump is not making any strange noises.
·
Check if the absolute inlet pressure is sufficient to prevent cavitation in the pump. Check the curve to obtain the
minimum required pressure above the vapour pressure (NPSHr).
·
Control the discharge pressure.
·
Check for leaks in the sealing areas.
A shut-off valve shall not be used to regulate the flow in the suction line. All shut-off valves must be fully
open during operation.
Control the motor consumption to prevent an electrical overload.
Reduce the flow rate and the electrical power
consumed by the motor:
·
by regulating the pump's discharge flow.
·
by decreasing the motor speed.
Use special protection when the sound pressure in the operation area exceeds 80 dB(A).
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