Nippon Oil Pump Lunary Pump

Questions and Answers

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Nicole WilliamsAug 30, 2025
What to do if my Nippon Oil Pump Water Pump has no oil discharge and the breaker trips?
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  christophermyersAug 30, 2025
  If your Nippon Oil Pump Water Pump has no oil discharge and the breaker trips, start by checking the power supply equipment to ensure the motor rotates. Reset the solenoid valve or breaker if they have tripped. Inspect the power supply cable for disconnections or poor connections, and replace or reconnect it as needed. Overloading could also be the cause, so consider using a motor with a higher output rating or a pump with a lower capacity. If the pump won’t rotate or rotates unsmoothly by hand, repair or replace the pump. If you find it difficult to choose the right motor or pump, please consult after checking oil viscosity, required pressure and pipe layout.
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Robert PooleNov 9, 2025
Why is my Nippon Oil Pump Water Pump not drawing oil or has insufficient flow?
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  Casey WilliamsNov 9, 2025
  If your Nippon Oil Pump Water Pump isn't drawing oil, several factors could be at play. First, ensure the oil tank is filled to the specified level, ideally with an amount 3-4 times larger than the pump flow rate. Check for air leaks in the pipe joints and retighten them if necessary. Verify that the oil viscosity is appropriate for the intended pressure; if it's too low, change it to a suitable level. Also, inspect the suction and discharge lines for any blockages and clear them. Finally, confirm the pump's rotation direction matches the indication on the pump. If the pressure won't build up, clean out the relief valve to remove any foreign objects. If the pressure builds up, but the set pressure is too low, raise the set pressure because oil is leaking through the relief valve. Consider ...
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daniellesheltonNov 18, 2025
What to do if my Nippon Oil Pump Water Pump is making a loud noise?
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  bondstephenNov 18, 2025
  Loud or abnormal noises in your Nippon Oil Pump Water Pump can stem from several causes. High suction resistance, possibly due to a narrow or long suction pipe, excessive motor speed, a suction filter with large resistance, high oil viscosity or high suction lift. Ensure suction pressure is within -0.03 ~ 0MPa (close to atmospheric pressure), replace small pipes with larger ones, shorten the pipe length, replace with filters in which the resistance is smaller, replace with oil with lower viscosity and lower the suction lift. Air entering the system (airation) can also be the culprit, so check for and eliminate air entry points in the tank, pipes, and pump itself. Also ensure that the returned pipe is always under the oil. Lastly, misaligned couplings can generate noise; ensure the coupling...