What are the materials of the twin screw cylinder body
Jan 22, 2024
Twin screw pump is an efficient and stable forward displacement pump widely used in manufacturing and industrial applications. Its characteristic is that the twin screw pump is composed of two parallel rotating screws, and the shell has a precise contour, forming a continuous and non circumferential clearance pump working chamber, where the fluid is compressed and transported. What are the materials of the twin screw cylinder? Next, we will explore what the material of the twin screw cylinder is.
Different twin-screw pumps require cylinder bodies of different materials. Due to the fact that twin-screw pumps are usually used to transport special chemicals, oils, or hazardous materials, hastily selecting unsuitable materials can easily lead to device failure, and even cause dangerous situations such as explosions and fires.
Generally speaking, there are three main types of cylinder materials for twin-screw pumps: cast iron, cast steel, and stainless steel.
Cast iron: Cast iron is an affordable cylinder material, and the design oriented cast iron twin-screw pump can provide efficient and reliable fluid delivery. However, due to the inferior corrosion and wear resistance of cast iron compared to the other two materials, cast iron twin-screw pumps are usually most suitable for transporting medium viscosity liquids that are less corrosive, less corrosive, and less prone to expansion at low temperatures.
Cast steel: Cast steel twin-screw pumps are usually suitable for high temperature, corrosive and sticky liquids, as well as high-temperature liquids with special polymers. Cast steel is more resistant to corrosion, chemical reactions, and high temperatures compared to cast iron.
Stainless steel: Stainless steel twin screw pump is one of the most corrosion-resistant twin screw pumps. Stainless steel twin screw pumps can effectively transport fluids with low viscosity, low wear, easy oxidation, and high hygiene standards, such as in the pharmaceutical and food processing industries.
The selection of cylinder material for twin-screw pumps depends on different liquid conveying requirements. In practical applications, materials should be carefully selected based on the characteristics, temperature, and corrosion properties of the fluid to be transported.
