Flanged butterfly valve is a commonly used pipe control valve, which is composed of a valve body, a valve plate, a valve stem, a sealing ring, a operating rod, a handle, etc. It is characterized by simple structure, easy installation, flexible switch, and can withstand high pressure, and is an indispensable component in industrial pipelines. Together with the flange butterfly valve manufacturer to understand its common material.
First, flange butterfly valve material type
1, gray cast iron material
Gray cast iron flanged butterfly valve is characterized by low hardness, corrosion resistance, suitable for water and air and other neutral medium pipelines.
2, carbon steel material
Carbon steel flanged butterfly valve is characterized by high strength, good wear resistance, suitable for high temperature, high pressure strong corrosive medium pipelines.
3, stainless steel material
Stainless steel flanged butterfly valve is characterized by good corrosion resistance and high temperature resistance, suitable for acid, alkali, salt and other corrosive media of the pipeline.
4, cast iron material
Cast iron flanged butterfly valve is characterized by high strength and hardness, not easy to damage, suitable for large diameter pipelines and high pressure media.
5, aluminum alloy material
Aluminum alloy flanged butterfly valve is characterized by light weight, high strength and good corrosion resistance, suitable for chemical industry, mining, shipbuilding and other occasions.
Second, the choice of flange butterfly valve material
According to the chemical properties of the medium and the requirements of the working environment, it is very important to choose the right flange butterfly valve material. Generally speaking, stainless steel can be applied to most media. Carbon steel material can be applied to PH between 7 and 14 and corrosion is very serious occasions. Gray cast iron material is suitable for air, water and other media without grease and corrosive gases. Cast iron material can be applied to some high pressure, high temperature pipes. Aluminum alloy material is suitable for corrosion resistance and wear resistance.
