What is a Cast Iron Valve Body? A cast iron valve body serves as the primary framework of a valve, housing the internal components that control fluid flow in piping systems. Made from cast iron due to its excellent durability, corrosion resistance, and cost-effectiveness, valve bodies are critical components in various industrial applications. Cast iron provides the necessary robustness and mechanical properties needed in environments where temperature fluctuations and pressure differentials are common. Available Standards Cast iron valve bodies are manufactured according to a range of industry standards to ensure reliability, safety, and compatibility across different systems and applications. These standards include: BS EN (British/European Standards): These standards provide specifications on design, testing, and performance requirements for valve bodies used across Europe and internationally. ISO (International Organization for Standardization): ISO standards ensure that valve bod…