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Pfeiffer Vacuum Presents New Two-Stage Rotary Vane Pump

With the new Pascal 2021 HW, Pfeiffer Vacuum presents the two-stage rotary vane pump with the highest vapor capacity in its class. It is optimally suited for all applications where water vapor is expected, such as low temperature sterilization and drying. An optimized design and gas ballast system allows to pump large volumes of vapor without condensation inside the pump. This prevents accumulation of fluid that would adversely affect the service life of the pump and the oil.Get more news about Two Stage Rotary Vane Vacuum Pump Seller,you can vist our website!

Thanks to the materials used, the Pascal 2021 HW also resists aggressive chemicals such as hydrogen peroxide. The pump is ready to deliver vapor in just a few minutes due to a customized temperature management. It has a safety device that impedes the ingress of water into functional sections if the steam capacity is inadvertently exceeded.

With accessories such as oil mist filter and inlet traps, the pump can be ideally adapted to most processes. Thanks to its compactness, the Pascal 2021 HW is also ideal for installation into equipment. An oil drain valve simplifies the maintenance in confined spaces. The single-phase universal motor allows for operation almost everywhere in the world.

The proven service concept of the Pascal series makes maintenance predictable and ensures a constantly high availability. The maintenance intervals can be extended by using different operating fluids.

How Does A Two Stage Rotary Vane Vacuum Pump Work？

A two-stage rotary vane vacuum pump is a powerful device used to create and maintain a vacuum in various applications, such as laboratories, industrial processes, and scientific research. This type of pump operates on a relatively simple yet efficient principle, making it widely utilized in a range of industries. In this passage, we will explore how a two-stage rotary vane vacuum pump works, its components, and the processes involved in generating a vacuum.Get more news about Two Stage Rotary Vane Vacuum Pump Seller,you can vist our website!

At its core, a two-stage rotary vane vacuum pump consists of two stages, each comprising a cylindrical housing with a rotor positioned eccentrically inside. The rotor is equipped with several vanes that are free to move in and out of radial slots along its length. These vanes are typically made of carbon or other self-lubricating materials and play a vital role in the functioning of the pump.

The pumping process begins when the pump is connected to the system or chamber that requires a vacuum. Initially, both stages of the pump are filled with air at atmospheric pressure. As the pump is activated, an electric motor drives the rotation of the rotor inside each stage. The rotor's eccentric position causes the vanes to slide in and out of their respective slots, creating variable chambers within the pump housing.

In the first stage, the rotation of the rotor causes the vanes to move outward due to centrifugal force. As a result, the volume of the chamber between the rotor and the housing increases. This expansion creates a partial vacuum within the chamber, causing the gas molecules inside the system or chamber to move towards the pump inlet. The gas molecules are then trapped between the vanes and the chamber wall, preventing their escape back into the system.

As the rotor continues to rotate, the vanes sweep the gas towards the pump's exhaust port. The shape of the pump housing guides the gas towards the exhaust, which is typically fitted with a valve to prevent backflow. This expulsion of gas from the first stage creates a lower pressure region in the system or chamber, facilitating the movement of gas from the higher-pressure region towards the pump.

After passing through the first stage, the gas enters the second stage of the rotary vane vacuum pump. The operation of the second stage is similar to that of the first stage. The rotation of the rotor and the movement of the vanes create a vacuum in the chamber, causing gas molecules to be drawn into the pump and trapped between the vanes. This stage further compresses the gas, reducing its volume and increasing the pressure difference between the system or chamber and the pump.

Once the gas reaches the second stage's exhaust port, it is expelled from the pump, further lowering the pressure within the system or chamber. By utilizing two stages, the pump can achieve higher levels of vacuum compared to single-stage pumps. The compression ratio, which is the ratio of the discharge pressure to the inlet pressure, is significantly improved due to the additional compression in the second stage.

To ensure the smooth operation and longevity of the pump, proper lubrication is essential. Rotary vane vacuum pumps are equipped with an oil reservoir that lubricates the vanes, reduces friction, and maintains a tight seal between the vanes and the pump housing. The oil also acts as a sealant, preventing air from entering the pump and reducing internal leakage.

However, the presence of oil in the pump also requires the inclusion of an oil management system. This system separates the oil from the discharged gas, either through oil separators or oil mist filters. The separated oil is then collected and recirculated back into the pump, while the gas is released into the atmosphere or subjected to further treatment, depending on the specific application and requirements.

In summary, a two-stage rotary vane vacuum pump operates by using rotating vanes to create chambers with expanding and contracting volumes. This process allows the pump to draw gas molecules from a system or chamber, compressing and expelling them to create a vacuum. With its reliable and efficient design, the two-stage rotary vane vacuum pump has become an indispensable tool for a wide range of vacuum applications, ensuring the smooth operation of various industries and scientific endeavors.

Edwards Vacuum launches modern industrial two-stage oil sealed rotary vane pump

The range embodies a perfect balance between performance, cost and usability. It pumps down fast, it handles vapours and it contributes to minimising noise level in your workplace. In short a simple, yet powerful rotary vane pump to boost your production but not your expenses.Get more news about Two Stage Rotary Vane Vacuum Pump Seller,you can vist our website!

In terms of performance, the E2S range offers a high pumping speed to reduce cycle times and gain productivity. In order to be suitable for humid applications, it has a hydro mode with improved vapour handling capability, whereas its low noise level allows it to meet lab environment working expectations.

All these benefits are packed in a modern, yet simple design, making the E2S an economical product with a clean layout. Two nice examples are the range’s built-in oil filter to protect the pump mechanism from contaminants and prevent oil leaks; and its innovative design to increase cooling performance and keeping a high vapour tolerance. All together, the E2S has avoided complex mechanical arrangements and kept the technology simple.

It’s simple design, however, has not made compromises towards the pump’s usability as it accommodates the users' needs on various levels: easy and pleasant to use and service, allowing for on-site cleaning to maximise uptime, can optionally include efficient over-temperature protection and low oil level detection, and has implemented increased safety against operator misuse.
In need of more speed?
Standard combinations of E2S two-stage rotary pumps and EH mechanical boosters are also available for high capacity demands. As they are factory pre-assembled, these pumping systems are compact, mobile and easy to use. With a direct start from atmospheric pressure our E2S85-EH1200 stack provides up to 900 m³/h effective speed and allows to reach high vacuum range with an ultimate vacuum of 3x10 -4 mbar.