LGSR roots vacuum pump

LGSR roots vacuum pump

• caliber：Φ50mm-Φ350mm
• flow：0.5m³/min-223m³/min
• pressure range：atmospheric pressure-73.5kpa

Roots vacuum pump working principle

• The working principle of Roots vacuum pump is based on the synchronous and counter-rotation of its internal blade-shaped rotor. ‌
• The Roots vacuum pump is equipped with two blade-shaped rotors that rotate synchronously in opposite directions.
• There are small gaps between the rotors and between the rotors and the inner wall of the pump casing without contact with each other.
• This design allows Roots pumps to achieve efficient gas extraction at high speeds. Through the pushing effect of the rotor, the gas is sucked in and moved to the exhaust port, thereby achieving air extraction.
• Roots pumps usually do not have internal compression function, so the compression ratio is low. For applications with high and medium vacuum degrees, they usually need to be used with a backing pump.

LGSR roots vacuum pump

Roots vacuum pump structural features

• The main feature of Roots vacuum pump lies in its unique structure and working principle. Its structure includes two leaf-shaped rotors that rotate synchronously in opposite directions.
• There are small gaps between the rotors and between the rotors and the inner wall of the pump casing without contact with each other.
• This design allows Roots pumps to achieve efficient gas extraction at high speeds.
• Roots pumps have a wide speed range, usually between 500 and 3000 rpm. The specific speed selection depends on the specific application requirements.

Roots vacuum pump application areas

• Roots vacuum pumps are widely used in petroleum, chemicals, plastics, pesticides and other industrial fields.
• Due to its characteristics of fast start-up, low power consumption, and low operation and maintenance costs, Roots vacuum pumps have been tested for long-term operation in petroleum, chemical, metallurgy, textile and other industries, and have been vigorously promoted and applied in China.

Roots vacuum pump specifications

Lgsr roots vacuum pump manual

• Things to note when using Roots vacuum pump:
• 1.Usage environment: Please ensure that the Roots vacuum pump is installed in a dry, ventilated and dust-free environment, avoiding direct sunlight and high temperature.
• 2.Power supply requirements: Please check whether the power supply meets the requirements of the pump before use, and make sure it is well grounded to prevent electric shock.
• 3.Operating specifications: During operation, please follow the steps in the operation manual to avoid damage or safety accidents caused by improper operation.
• Routine maintenance of Roots vacuum pump:
• 1.Clean the pump body and exhaust pipe regularly to keep the interior clean and free of debris.
• 2.Regularly check the power cord and grounding conditions to ensure safety and reliability.
• 3.If any abnormality or failure is found, please stop the machine in time and contact professionals for repair.
• Roots vacuum pump troubleshooting:
• 1.Pump body heats up: It may be that the motor is overloaded or the heat dissipation is poor. It is recommended to check the power supply voltage and ventilation conditions.
• 2.The air pumping rate decreases: It may be due to rotor wear or air leakage in the air pumping pipe. It is recommended to check the rotor wear and repair the air leakage point.
• 3.Increased noise: It may be that the rotor is unbalanced or the bearings are worn. It is recommended to check the status of the bearings and make necessary replacements.
• Roots vacuum pump safety warning:
• 1.Disassembly and repair by non-professionals is prohibited: Disassembly by non-professionals may cause damage to the pump body or safety accidents.
• 2.It is prohibited to use in flammable and explosive environments: Roots vacuum pumps should be kept away from flammable and explosive items to prevent danger.
• 3.It is prohibited to touch rotating parts when the pump is running: When the pump is running, rotating parts may cause injury, so please keep a safe distance.
• Roots vacuum pump maintenance recommendations:
• 1.It is recommended to conduct an excellent inspection of the Roots vacuum pump every three months to ensure that all components are in good condition.
• 2.It is recommended to perform professional maintenance on the pump body at least once a year to extend the service life and improve performance.
• Points to note during the operation of Roots vacuum pump:
• 1.The Roots vacuum pump must be used in accordance with the technical specifications during operation. Under normal circumstances, the inlet pressure of the Roots vacuum pump is below 1330Pa, and the maximum pressure difference of the pump shall not be higher than its maximum allowable pressure difference.
• 2.Pay attention to the motor load and the temperature rise of various parts of the pump. Under normal operation, the maximum temperature rise of the pump shall not exceed 40°C, and the maximum temperature shall not exceed 80°C. If a water ring pump is selected as the backing pump, sometimes the temperature rise of the Roots pump may increase due to the relatively large pumping speed ratio of the two pumps, but the maximum temperature of the pump shall not exceed 100°C.
• 3.There should be no irregular abnormal vibration and abnormal noise during operation.
• 4.If it is found that the motor is overloaded, the temperature rises too high, the sound is abnormal, the vibration is large, etc. during operation, the machine should be stopped immediately to check the cause and eliminate the fault.