Comparing Construction Materials
When selecting a rotary valve, the material of construction is a critical decision. Cast iron and fabricated steel (mild steel or stainless) are the two most common options.
Cast Iron Rotary Valves
Pros: Superior rigidity, better vibration damping, and excellent resistance to distortion under heat. Ideal for heavy-duty applications like cement and mining.
Cons: Heavier, longer lead times for custom shapes.
Fabricated Rotary Valves
Pros: lighter weight, easily customizable dimensions, faster production for custom sizes.
Cons: Less rigid, more prone to distortion at high temperatures.
Our Recommendation
For standard heavy-duty industrial applications, Oswar Rotocorp recommends our Cast Iron RALX Series for maximum durability and sealing efficiency.
