Working Principles of Different Types Dry Vacuum Pump

The significant development in vacuum pump technology has resulted in advances in the reliability, energy usage, noise levels, and overall performance of the machines. Here is the explanation of four main categories of industrial vacuum pumps.

Dry screw vacuum pump

The dry screw vacuum pump operates with two screw rotors rotating in the opposite direction. This technology is hallmarked by lowered heat and noise levels with higher performance levels. It traps the medium to be pumped between the cylinder and the screw chambers. Then, it transports it to the gas discharge.

The advanced screw models result in lower electric energy consumption compared to standard screw design. It also results in a lower heat load of the compressed gas. Within the housing of the vacuum booster, two pistons rotate synchronously.

Rotary vane vacuum pump

A rotary vane vacuum pump is a type of technology that enables the compression of the air inside the pump chamber. It creates suction for the removal of air molecules from a vessel. It follows the working principle of a positive displacement pump.

The design consists of a rotor that is mounted eccentrically inside a cylindrical stator. Blades, mounted inside the rotor, move in and out due to centrifugal force. It follows the internal surface of the housing.

Aluminum blades, rotors, housing, and housing cover bearings are lubricated with oil making them virtually wear-free. The dry vacuum pump doesn’t use any fluids to create a vacuum or contact the process gas and also discharge to the atmosphere.

Liquid ring vacuum pump

Liquid ring vacuum pumps are positive displacement machines providing process vacuum in industrial applications such as electrical power, chemical, food and beverage processing, environment, and textiles. Liquid ring vacuum pumps utilize water or other compatible liquids as the sealant.

The simple operation with no contracting parts makes liquid ring vacuum pumps a safe and reliable choice for handling dirty and potentially dangerous gas streams. Liquid ring pumps are optimal for handling extreme vapor load or in application with a high tolerance for liquid carryover.

The information mentioned above will help you to choose the right dry vacuum pump as per your need. Many agencies supply different types of vacuum pumps. You will get many options to choose.