Our cast iron butterfly valves feature a valve body made from cast iron, typically coated with epoxy to protect against corrosion and environmental damage. Cast iron is considerably more affordable than stainless steel and provides good mechanical strength for low to medium pressure systems. This makes it an ideal choice for large-scale or budget-conscious applications such as water treatment, HVAC systems, and irrigation. We offer cast iron butterfly valves in various sizes, actuators, seats, and stem seals.