If a single vacuum pump is not suitable for a certain process due to pumping speed or limit vacuum. DYK series vacuum pump device uses Roots pump as booster pump and rotary vane pump as front pump. The exhaust device from Roots pump is connected to the suction side of the front pump to provide high pumping speed under high vacuum. Pump units are also equipped with air-cooling system, cooling water system, vacuum valve, ventilation valve, compensator, vacuum gauge, etc., high efficiency, reliability, less power consumption. It can also be designed and installed on ready-to-use chassis or provided with trailers to meet user requirements. DYK unit is widely used in vacuum metallurgy, vacuum drying, welding, chemical industry, laboratory, power station and other industrial dust collection.
_Roots pump starts automatically by the front pump of the electric contact vacuum gauge.
Powerful rotary vane front stage pump produces the necessary back pressure, so that the diffusion pump always reach its full pumping speed and limit vacuum
The pumping unit has a vacuum valve and a thick vacuum line (bypass) at the entrance. This makes it particularly effective for rapid evacuation cycles.
_High vacuum pump device has excellent energy saving effect, high efficiency, reliability and low power consumption.