Roots pump has the characteristics of low speed, high efficiency, small volume, large flow, low power consumption, strong self-priming ability, and convenient use. It can be widely used in conveying petroleum and petroleum products and conveying various oils and liquids in factories.

Any equipment will have some of the more common failures, even Roots pumps are no exception. Therefore, understanding its common faults and maintenance methods can effectively help you better control the equipment to work, and can quickly solve the equipment failure. So the following editor will talk about its three common faults and common maintenance methods.​​

1. The pump is very hot. This is because the pumping speed of the backing pump is not good, resulting in excessive compression ratio, high inlet pressure, poor cooling, high lubricating oil in the gearbox, contact between the rotor and the pump casing, gears, bearings, and oil seals. caused by poor smoothness.

2. The operation of the Roots pump is unstable, the noise is too large, the efficiency is low, etc. These problems are actually related to our own maintenance. The main reason for the unstable operation is due to voltage, improper assembly, etc. reason formed.

3. Sometimes the pipeline of the pump cannot be connected, the pumping speed of the backing pump drops, and the overflow valve leaks, which leads to the lack of pumping speed and so on.

When the Roots vacuum pump is working, the rotor and the rotor, the rotor and the pump body do not contact each other, so there is no direct wear, but due to the small gap (generally 0.10~0.25mm), the transmission gear wears after long-term operation, when the tooth side gap is greater than the rotor gap. When it collides and fails, the gear should be replaced at this time.

Generally, it should be overhauled once in one year of operation, check the wear of gears and bearings, check the sealing device, replace the sealing ring (ring), check the corrosion of the rotor, the scaling of the rotor, the surface corrosion and scaling of the pump body. When the cleaning and measurement wear exceeds the specified size, the gap should be adjusted or the parts should be replaced.

In fact, many common faults of Roots pumps are caused by not carefully checking the equipment before starting to use, not operating correctly during operation, and failing to perform maintenance operations in the later period. Therefore, in order to reduce the failure rate of the equipment, it is necessary to Strictly follow the correct operation steps to check, start, use the equipment, etc., so as to really effectively reduce the failure rate of the equipment.