2SK Water Ring Vacuum Pump for Deep and Reliable Vacuum

Built for Demanding Vacuum Applications

A vacuum pump may look simple from the outside, but the right design makes a big difference when a process involves steam, moisture, or other difficult gases. The 2SK water ring vacuum pump is a two-stage liquid ring vacuum pump designed for applications that need stable and relatively deep vacuum.
It uses water as the working liquid and has a simple mechanical structure. This makes the pump suitable for chemical plants, pharmaceutical production, food processing, paper manufacturing, and other industrial applications. It can also handle gas streams with water vapor, steam, small amounts of liquid carryover, and light dust.

How the 2SK Water Ring Vacuum Pump Works

A Simple Liquid Ring Creates the Vacuum

The working principle is based on a rotating impeller and a sealing liquid. The impeller is installed eccentrically inside the cylindrical pump casing. When it rotates, centrifugal force pushes the water toward the casing wall and forms a rotating liquid ring.
This liquid ring acts as a moving seal around the impeller. Because the impeller is positioned off-center, the spaces between the blades change size during rotation.

Gas Is Drawn In, Compressed, and Discharged

When the spaces become larger, they create a low-pressure area that draws gas into the pump through the suction port. As the impeller continues to rotate, these spaces become smaller and compress the gas.
The compressed gas is then discharged from the pump together with part of the working water. This process continues as long as the pump is running, providing a steady vacuum flow.
The two-stage design gives the 2SK series an advantage when deeper vacuum is needed. It also helps the pump maintain stable performance in demanding process conditions.

Near-Isothermal Compression Keeps Operation Stable

Lower Heat During Gas Compression

One useful feature of a water ring vacuum pump is the cooling effect of the working liquid. During compression, the water absorbs much of the heat produced by the gas compression process.
This creates near-isothermal compression, which helps keep the operating temperature relatively low. For processes involving flammable, explosive, or heat-sensitive gases, controlling temperature is especially important.
The liquid ring also continuously washes the gas path during operation. This can help the pump handle moisture and small amounts of process contaminants without relying on a complicated internal structure.

Handles Wet and Contaminated Gas Streams

A Practical Choice for Harsh Vapors

Industrial gas is not always clean and dry. Steam, water vapor, small liquid droplets, and light dust may enter a vacuum system during normal production. A conventional vacuum pump may need extra protection when working with these conditions.
The 2SK water ring vacuum pump is designed to handle these types of gas streams. The working water provides sealing and cooling while also helping wash contaminants through the system.
This makes the pump useful for processes such as vacuum drying, evaporation, filtration, degassing, and gas extraction.

Simple Design Means Easier Maintenance

Less Internal Wear

The 2SK series has a low-friction mechanical structure. The impeller is the main moving component inside the pump, with no internal sliding contact between the rotating parts. This helps reduce mechanical wear during normal operation.
Fewer internal wear points can also make routine maintenance easier and support a longer operating life. The pump uses water as its main working medium, which keeps the basic operating system simple.
Regular checks of the working water, seals, bearings, and operating conditions can help keep the pump running smoothly and reduce unexpected downtime.

Applications Across Different Industries

Chemical and Pharmaceutical Processing

In chemical and pharmaceutical plants, the pump can be used for vacuum distillation, solvent recovery, vacuum drying, filtration, and other process vacuum duties. Its ability to handle vapor and moisture makes it suitable for demanding process conditions.

Food, Paper, and General Industry

In food and beverage production, the pump can support vacuum evaporation, packaging, degassing, and concentration. In paper production, it can provide vacuum for dewatering and drying processes. It can also be used for component drying, material handling, and other industrial vacuum applications.

A Practical Vacuum Solution for Long-Term Use

The 2SK water ring vacuum pump combines a two-stage design, near-isothermal compression, simple mechanical construction, and strong wet-gas handling capability. It can provide deep and stable vacuum while keeping heat, internal wear, and maintenance demands under control.
For industries dealing with steam, moisture, or process gases, these features can make a real difference. With proper installation, suitable working water, and regular maintenance, the 2SK series provides a practical and reliable solution for continuous industrial vacuum service.

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