Advantages of Cast Steel Butterfly Valve Over Cast Iron Butterfly Valve

This article provides a comparative analysis of the key differences between cast steel butterfly valves and cast iron butterfly valves. Cast steel butterfly valves, made from high-strength carbon steel, offer significant advantages in terms of corrosion resistance, high-temperature and high-pressure performance, service life, and maintenance costs, making them particularly suitable for harsh operating conditions. Cast iron butterfly valves, while lower in cost, have inferior strength and corrosion resistance and are more suitable for water systems operating at normal temperatures and pressures. Engineering selection must be based on specific operating conditions, balancing performance and cost to ensure the safe and stable operation of the system.