Judgment Method for Submersible Fuel Pump Leakage

How to judge whether the tanker pipeline of submersible fuel pump leaks?

In daily use, the gas station oil pipeline will oxidize or corrode. In fact, this is a normal phenomenon. There are three reasons:

Firstly, due to the submersible fuel pump, the pipeline is underground, and the sand is moist. Secondly, different types of oil can also have an impact. Finally, the land is slowly sinking. This puts pressure on the pipeline.

So, day by day, it opens holes or cracks, causing oil to leak.

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The article will give the solution to the leakage problem from the perspective of the gas station.

This helps to ensure that underground pipelines are effectively monitored,

to meet the safe operation and environmental protection of gas stations.

Hazards after a leaked pipe

On the one hand, it will cause serious environmental pollution.

According to an undisclosed statistic, more than half of the gas stations have oil leakage problems. Diesel and gasoline leaks from gas stations pose a direct threat of pollution to the surrounding soil and groundwater.

Gas stations, an important source of pollution, have not been effectively curbed so far.

In today’s increasingly large number of cars and gas stations,

if measures are not taken as soon as possible,

it will become a major problem for environmental protection in the future.

On the other hand, it has security issues.

Oil leakage can have a serious impact on product safety and even endanger people’s lives.

As an example, there was once a pipe leaking oil into a municipal drainage channel. In the channel that forms a confined space, oil and gas accumulate and explode when it encounters a spark.

This resulted in nearly a hundred deaths and severe economic losses to the city. The fact shows that oil spills seriously affect human safety and social stability.

 Judgment method for submersible fuel pump leakage

(1)Visual Inspection

Start by visually inspecting the entire length of the pipeline. Look for any visible signs of leakage, such as water droplets, wet spots, or puddles along the pipeline’s surface. Pay close attention to connections, joints, and fittings as they are common areas for leaks.

(2)Listen for Unusual Sounds

Turn on the submersible fuel pump and listen for any unusual sounds coming from the pipeline. Leaks may produce hissing, whistling, or bubbling noises. These sounds can indicate the presence of escaping water or air.


(3)Pressure Testing

Perform a pressure test to determine if there is a leak in the pipeline. Here’s how you can conduct a pressure test:

a.Close off all valves and outlets connected to the pipeline. b.Attach a pressure gauge or pressure testing device to a valve or fitting on the pipeline.c.Apply pressure to the system slowly, gradually increasing the pressure to the recommended operating level.

d.Monitor the pressure gauge and observe if there is a drop in pressure over time. If the pressure drops, it suggests there is a leak in the pipeline.

(4)Check Pump Performance

Monitor the performance of the submersible pump during operation. If you notice any significant decrease in efficiency or output, it could be an indication of a leak in the pipeline.

(5)Inspect the Surrounding Area

Check the area around the pipeline for any signs of water accumulation or wet soil. Leaks in the pipeline may cause water to seep into the ground, resulting in visible dampness or pooling.

(6)Thermal Imaging

Use a thermal imaging camera to scan the pipeline. Leaking fluids may cause temperature variations, which can be detected using thermal imaging technology.

(7)Conduct Dye Testing

If you suspect a small leak that is not easily visible, you can perform a dye test.  Add a colored dye to the fluid being pumped, and then inspect the pipeline and surrounding areas for any signs of the colored dye, indicating a leak.

(8)Using Liquid Console

Level gauge

In the case of confirming that the Liquid Console is connected to the tank:

a.After stopping the refueling operation of the oil production in the test pipeline, copy the reading on the Liquid Console.

b.Retest the liquid level, oil temperature, and oil volume of the oil storage tank. And hang the gun after 1 hour of continuous start-up.

c.Read the reading on the Liquid Console again after 15 minutes.

d.If there is a small change in the level height and volume after measurement, it means that there is no leakage in the pipeline; If the difference exceeds 2mm, it means that the pipeline has oil leakage.


If you identify any signs of leakage or suspect a leak, it is recommended to take immediate action to address the issue.

Consider contacting a professional or the manufacturer of the submersible pump for further assistance and guidance in resolving the issue.

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