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Basic characteristics of carbon steel eccentric butterfly valve
As the name implies, carbon steel eccentric butterfly valve is a type of valve that uses carbon steel as the main material and achieves fast opening and closing through eccentric design. This design enables the valve plate to reduce friction with the valve seat during opening and closing, thereby reducing operating torque and extending service life. The eccentric design also ensures that when the valve is fully open, a certain gap is formed between the valve plate and the valve seat, reducing fluid resistance and pressure loss, and improving the flow coefficient. In addition, carbon steel material has good mechanical strength and processing properties, so that the eccentric butterfly valve can maintain a compact and lightweight structure while bearing a certain pressure, which is easy to install and maintain.
Suitable for non-corrosive media
Water: As one of the most common fluid media, water has very little corrosiveness to valves. Carbon steel eccentric butterfly valves are widely used in water treatment systems and water supply and drainage pipelines. Their excellent sealing performance and flow regulation capabilities ensure the effective use of water resources and the stable operation of the system.
Air: In gas transmission systems, carbon steel eccentric butterfly valves also perform well. Due to its simple structure and light weight, it is particularly suitable for occasions that require frequent operation or quick response, such as ventilation systems, air conditioning systems, and some industrial gas pipelines.
Oil media: Carbon steel eccentric butterfly valves are also applicable to non-corrosive oil media such as lubricating oil and fuel oil. Its good sealing and wear resistance ensure the purity of the oil and the safe operation of the system, while reducing the risk of leakage and maintaining the cleanliness of the environment.
Application considerations for mildly corrosive media
Although the corrosion resistance of carbon steel eccentric butterfly valves is limited, its ability to resist mild corrosion can be enhanced to a certain extent through surface treatment technology (such as galvanizing, plastic spraying, etc.) and selection of suitable lining materials (such as rubber, polytetrafluoroethylene, etc.). For example, in media containing a small amount of acidic or alkaline substances, carbon steel eccentric butterfly valves with rubber lining can effectively isolate corrosive media and protect the valve body from erosion, thereby extending its service life.
Balance between economy and practicality
Compared with valves made of high-performance materials such as stainless steel and alloy steel, carbon steel eccentric butterfly valves have significant advantages in cost. For projects with limited budgets or low corrosion resistance requirements, carbon steel eccentric butterfly valves provide an economical and practical solution. At the same time, its standardized design and wide applicability make spare parts replacement and maintenance more convenient, reducing long-term operating costs.
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