Vacuum plays an important role in various industrial manufacturing processes. Industrial vacuum pumps create, enhance, and sustain vacuum conditions needed for these processes. In traditional wet technology, Vacuum pumps require oil or water as a sealing fluid to create vacuum in pumping chamber; however, Dry Screw Vacuum Pump uses twin screw rotor design and does not need any sealing fluid to create vacuum. The entire pumping chamber is dry. The driver screw (connected to motor) is connected to driven screw with the help of timing gears. The gases or vapours are trapped and compressed in between the two screws and move towards exhaust.
1. In Pharmaceuticals and Chemical Industry, it is used for drying, distillation, solvent
recovery, sterilisation and freeze drying.
2. In process industry Dry pumps can handle aggressive gases without the risk of
contamination of process stream.
3. It is used for transfer application in the Food and Beverage industry.
1. Oil-Free Operation: Dry screw vacuum pumps are able to compress gas due to close
tolerances between the screws and rotor housing rather than using oil for sealing.
The technology also eliminates the risk of contamination due to oil vapor or mist. This
is an important aspect for industries that demand high purity levels in their
applications.
2. Low Maintenance: The design of dry screw vacuum pumps has fewer moving parts
as compared to oil-sealed pumps. The reduced wear and tear brings down the
frequency of maintenance leading to reduced downtime and maintenance costs.
3. High Efficiency: The screw design gives efficient gas compression and this results in
higher pumping speeds with less energy consumption. Hence these pumps are more
energy efficient. Tekman’s dry screw vacuum pumps have lower power consumption
by up to 30% as compared to other dry screw pumps.
4. Broad Operating Range: Dry screw vacuum pumps are capable of operating with a
wide range of pressures, and they can be used for various applications which need
rough to high vacuum levels. The short gas path, minimum back flow rate and stable
performance at all pressures make it suitable for various industrial applications.
5. Corrosion Resistance: The coating materials used in dry screw vacuum pumps are
resistant to corrosive gases and vapours mainly used in chemical processing. This
makes the pumps durable for such applications. The new design dry screw pumps
are available with Duplex, SS-316L and titanium rotors to withstand highly corrosive
vapours.
6. Environmental Benefits: There is no need for oil or water disposal (effluent treatment)
which is a costly process in traditional pumps. This reduces hazardous waste that is
environmentally damaging. The absence of oil or water and reduced need for
consumables and disposal services make it a sustainable, cost-efficient, and greener
choice.
7. Improved Process Control: Dry screw pumps give precise control over the vacuum
level. The controlled environment helps the customer to optimise or effectively use
condenses with available utilities. This minimizes process variability and enhances
product quality.
8. Quiet Operation: It operates quietly and does not cause noise pollution in the
workplace. It is best for environments where low noise levels are crucial.
Tekman India Pvt Ltd is the leading manufacturer of Dry Screw vacuum pumps and is known for its patented variable pitch screw dry pump technology. The pumping systems offered by Tekman have complete process automation where manual intervention for managing the process is minimal. Connect with us to understand the variants of dry screw vacuum pumping systems.
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