Roots Pump
The roots pump is used to generate medium vacuum. Its special benefit is that it works without any oil, in contrast to therotary vane pump. Accordingly, it can be used for delivery of aggressive media.
Roots pumps extend the range of applications for so-called backing pumps to lower pressures, especially in applications with high gas loads. Their main working range is between 1 mbar and 1 × 10-3 mbar. By connecting several of such pumps in series even lower working pressures down to 1 × 10-4 mbar can be achieved.
Roots pumps are positive displacement pumps without internal compression. This generally means, that they are not able to compress to atmosphere directly. Running in combination with a corresponding backing pump will always work. When selecting a combination of backing pump and roots pump, the ratio of the pumping speeds of the two pumps is decisive. This is referred to as gradation. Typical gradations are between 1:2 and 1:8. This means that Roots pumps typically have a pumping speed 2 to 8 times higher than that of the attached backing pump. The gradation determines the pressure difference between the inlet and outlet of the roots pump at the respective operating point.
Customer's Benefit :-
(1) Large pumping speed range from 250 to 12,000 m3/h.
(2) Very high continuous pressure differences.
(3) Flexibility and adaptation to the process can be achieved by configuring the motor power and the frequency converter.
(4) Thermal process gas control with OktaLine G and gas coolers.
(5) Low maintenance, maximum operational reliability and availability due to magnetic coupling (optional).
(6) Chemical and process engineering.
(7) Coating and semiconductor industry.
(8) Research & development.
• Strong rotary shaft. → Enables start-up and continuous operation in low vacuum.
• Optimal motor capacity can be selected to fit the specific load. → Less equipment cost, less operation cost.
• Wide range of pump speed lineup. → 90～12,000m3/h
• Work with various backing pumps. → Roots＋oil-sealed rotary, liquid-ring
Applications :-
• Semiconductor, Electronics Industry.
• Nuclear Energy Development Research.
• Automobile, Machinery, Aircraft Industry.
• Science & Engineering.
• Heavy Electrical Equipment.
• Optical Industry.
• Steel, metal industry.
• Chemistry, Pharmaceutical industry.
• Food Industry.
• Metalworking Industry.
• Energy connection.
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