Sihi Vacuum Pump Products And Services - From Liquid Ring To Compressor To Services And Parts

Sihi vacuum pump products are some of the most heard-of names in the industrial vacuum market. Sihi Pumps Inc. is known as an international maker of engineered pumps and compressors used in various industries and scientific operations. Here, we describe one of the more popular devices offered under this brand.

Sihi vacuum pump models are designed for refrigerant liquids, hot thermal fluids and net positive suction head applications. They come in different forms, sizes, prizes and functions and are available in a number of countries. One of the better known models offered by the company is its liquid ring model.

The Sihi liquid ring is a positive displacement type of vacuum pump. Positive displacement pumps operate by expanding a cavity to allow gases to escape from a chamber to the atmosphere. These types of pumps work in similar ways to the diaphragm muscle expanding the chest cavity to increase the volume of the lungs. The expansion results in reduced pressure and creates a partial vacuum which can be filled by air through atmospheric pressure.

Liquid ring pumps, just like the one offered by Sihi, are commonly used in materials that have temperatures ranging between 200 and 600-degree-Fahrenheit. A liquid ring features an impeller that is mounted within a round casing where cool liquid is introduced. The rotating impeller causes the liquid to move towards the periphery of the casing to form a ring of liquid, hence, its name.

The main advantage of a liquid ring vacuum pump over other types is its lack of noise during operation. However, liquid rings are known to use more energy than other types such as venturi and rotary lobe pumps. A Sihi liquid ring pump is manufactured to last for a long time and is designed to operate without vibration and has a low starting torque. According to the company, its product is also effective in handling entrained liquid without causing pump damage.

A Sihi liquid ring pump has various principal components, including the suction and the discharge covers, port plates, impellers and shaft and bearing supports. The system utilizes different combinations of impeller sizes and direction of gas to produce varying capacities using the same basic components. Single acting pumps can be used to achieve atmospheric discharge pressures, while multi-stage compressors are needed for higher pressures.

A Sihi vacuum pump can be used in a variety of operations. The company specializes in producing liquid ring models, dry running pumps and compressor systems.

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