Guangdong Association of Fans explains how to solve the overload problem of Roots vacuum pumps

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　　Overload of rotary vane vacuum pumps also affects the performance of these machines, and it poses a problem for some users in daily operation. The best solution is to prevent such situations from occurring. Therefore, YueXie Fans would like to share with you some simple methods to avoid overload, thereby helping to resolve these issues for users – we hope this will be useful. 　　1. Use a mechanical automatic pressure-regulating bypass valve. This valve is installed on the bypass pipeline between the outlet and inlet of the Roots vacuum pump. It ensures that the pressure difference between the pump’s inlet and outlet does not exceed the specified value. When the pressure difference falls below this value, the valve closes automatically, allowing gas to be drawn away by the preceding pump inside the Roots vacuum pump.

2. Use vacuum electrical components to control the pressure at the pump inlet. Pressure-sensitive components such as vacuum diaphragm relays or electric contact vacuum pressure gauges are placed in the inlet pipeline of the Roots vacuum pump. If the pressure at the pump inlet exceeds the specified value, the Roots vacuum pump shuts down automatically, thereby ensuring its reliable operation.

3. Use a hydraulic coupling. A hydraulic coupling can also prevent the pump from being overloaded, enabling it to operate under high pressure differences. It is installed between the pump and the motor. When the pump operates under high pressure differences or is started simultaneously with a preceding pump, a speed difference, or slippage, occurs within the hydraulic coupling, which allows only a certain amount of torque to be transmitted, thus reducing the pump’s speed of rotation.

It is hoped that these three methods can effectively prevent overload problems, and everyone can try them out during operation. If you have any questions, you can call the Yue Xie fan manufacturer for consultation. Yuexie Fans: www.yue*efj.com Tags: Roots vacuum pump, Roots blower, Yuexie Fans