Impeller
0
MPa
1.0
0.5
1.5
2.0
2.5
0.6
The testing pressure
shall be 0.2Mpa and
wait until 5 minutes,
no leakage occurs.
MPa
0
1.0
0.5
1.5
2.0
2.5
0.6
11.Oil-filled electric pump filled with No. 10 white food machinery oil so as to ensure that the
mechanical seal is effectively lubricated and cooled, which might leak in case of any damage or
fault of the Electric Pump. The leaked white oil might damage the botany planted or the animal
bred or pollute the drinking water or food involved in any application relating to planting, breeding,
or delivery or processing of drinking water or food. To select a product hereunder, the user shall
evaluate the relevant application and the consequence of the use of such a product so as to
confirm whether the product is suitable and even invite a related specialized person to do such
confirmation when necessary. In case of any leakage of white oil, please immediately stop using
and properly dealing with it.
12.When the Electric Pump is being used, please first cut off the power supply in case that
the Electric Pump is to be relocated or touched, so as to avoid any accident.
V. Maintenance
1.The matters needing attention prior to the disassembly of the motor for maintenance: First
wait until the motor is cool, then unscrew the oil filler bole, to release the high-pressure gas
generated inside due to burn-in, for the purpose of preventing the upper cover from jumping out to
hurt people.
2.Regularly inspect the insulation resistance between the motor bracket and the winding of
the Electric Pump, which shall be no less than 1MΩ when the operating temperature is nearly
achieved, or otherwise usage shall not be allowed until the corresponding measures are taken
and the relevant requirements are met.
3. After the 2500-hours normal usage of the Electric Pump, the Electric Pump shall be
maintained as per the steps below:
a) inspect various easy broken parts such as the mechanical seal, bearing, and impeller.
Please immediately replace in case there are damaged ones.
b) After the completion of inspection and repair, please do an air pressure test under the
pressure of 0.2MPa; to wait until 5 minutes, no leakage occurs.
Bearing
Mechanical seal
Impeller,
Mechanical seal,
Bearing
