Ketene is an organic compound with a chemical formula of C2H2O. It is the simplest ketene. It is a toxic gas at room temperature and is very unstable. It can only be stored at low temperature. At 0 °C, a polymerization reaction can occur. Ketene is a colorless gas; it has a pungent odor similar t...

The vacuum degassing of molten steel is a key operation in secondary steel-making, which can quickly and effectively remove the dissolved impurity gases (mainly hydrogen and carbon monoxide) in the molten steel and reduce the dissolved carbon content in the molten steel, thereby improving the qua...

Many materials are often heat-sensitive, viscous and/or have high boiling point properties, such as heavy petroleum residues, chemicals, medicines and natural foods, health products, fatty acids, etc. If we want to separate and purify the components of these materials It is necessary to maintain ...

Vacuum forming is a kind of plastic processing technology. The main principle is to heat the flat plastic sheet and soften it, then use vacuum to adsorb it on the surface of the mold and form it after cooling. The common vacuum forming method has concave mold vacuum forming and punch mold vacuum ...

EVP company developed the two stage liquid ring vacuum pump DLV seires are adopted the stainless steel 304 material impeller. If the pumped meidum composition will not produce any corrosion for SS 304 material, and the water temperature is not too high to cavitation,then the service life will be ...

From the driving end, the rotation direction of the pump pulley is generally the rotation direction of the pump, usually it is clockwise. When the impeller rotates clockwise, the water entering the pump body is thrown around by the impeller. Due to centrifugal force, the water forms a closed wate...

Fruit freeze-drying and fruit cooling & preservation are different. Fruit freeze-drying requires a condenser (usually provided by the freeze dryer manufacturer) between the cavity and the pump to condense water and prevent water from entering the pump. Generally, 2XZ series double-stage oil-s...

If use water as working liquid in the application of oil refining, the pumped medium can easily react with the working fluid to form crystallization, resulting in damage to the mechanical seal and leakage of the working fluid. It is recommended to replace the working fluid with oil. This type of ...

Molecular vacuum pump is a high precision vacuum pump widely used in laboratories, such as some lab with strict requirements on the field environment, medical research and coating fields can see the wide use of molecular pump. Due to the different process, part of the process needs to do anti-cor...

What are the requirements for vacuum pressure stability in a milking system? The vacuum pump continuously extracts air from the milking system to create a vacuum environment, while the vacuum pressure regulator responds to the air demand in time to maintain the stability of the vacuum pressure in...