Working Principle of Roots Vacuum Pump

The pump chamber contains a pair of synchronously counter-rotating high-speed figure-8-shaped rotors. During operation, the two rotors create suction and exhaust effects within the pump chamber. The Roots pump cannot exhaust independently and must be used in series with a backing pump (such as a screw pump, vane pump, water ring pump, etc.).

Roots pumps are divided into two types: the standard DR type and the DRP type with an overflow valve.

Performance Advantages of Roots Vacuum Pump

Stability: Low vibration and noise during operation;

Energy Efficiency: Low power consumption and excellent energy-saving effect;

Startup: Capable of starting quickly and reaching ultimate pressure;

Oil-Free: Avoids contamination of the vacuum system by oil vapor;

Overload Protection: The overflow valve automatically prevents overload.

Application Industries of Roots Vacuum Pump

Widely applicable in industries such as chemical, pharmaceutical, vacuum coating, food, metallurgy, motor manufacturing, electronics, and solar energy. When used with a screw vacuum pump as its backing pump and combined with a condenser, it can extract gases containing large amounts of water vapor, making it highly suitable for production processes like distillation, evaporation, and freeze-drying.