Multi-stage roost pumps are a type of dry vacuum pump. They are used in medium, low, high, and ultra-high vacuum systems to create dry conditions. The single-stage or simple root pumps are commonly used to combine several types of fore pumps such as screw and liquid ring pumps, rotary vane pumps, etc. It develops or boosts the ultimate pressure and pumping speed. When the multi-stage roots pumps are used, there is no need for fore pumps. A multi-stage root pump can operate from atmospheric pressure.
Multi-stage roots pump
The multi-stage roots vacuum pump can consist of up to eight stages and use several sets of rotors. Roots pumps are advantageous when a dry and clean atmosphere is essential. They are usually used in the manufacture of solar panels, semiconductors, other industrial applications, and for scientific research and instruments.
Working principle of multi-stage roots pump
The root pumps use two counter-rotating interconnected lobed rotor units rotating within a stator housing or casing. An inlet flange is located perpendicularly to the rotating unit. Gas enters through it. Then, it is isolated between the rapidly rotating rotors and stators. After that, the compressed gas is expelled through the exhaust port. A multi-stage roots pump uses several sets of rotors. The geometry of the rotors produces compression. Each stage creates progressively high pressure.
The performance characteristics of the root pumps vary considering different factors, including speed of operation, unit size, rotation, initial inlet pressure, ambient temperature, and the characteristics of the gases being pumped. You can choose one of the best vacuum pump manufacturers in India to purchase a multi-stage roots pump.
Applications of multi-stage roots pump
The multi-stage roots pumps are mainly used where their clean, dry, and high pumping speed characteristics can be applied to the best advantages. Their application includes semiconductor and solar industries, analytical instruments, and the laser industry. They are also used in metallurgy, furnaces, and different types of coating applications where their very dry nature is advantageous. Multi-stage root pumps are very compact and suitable to enjoy a long service life. They have no contact between the moving parts. So, there is no wear or any need for oil.
The mentioned above information will help you to get a complete knowledge of multi-stage roots pumps. It will help you to select the multi-stage roots pumps as per your application needs.