Choosing between cast iron and fabricated rotary valves depends on your application. We compare durability, cost, and suitability for different bulk solids.
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.
Need Technical Support?
Our engineering team is ready to help with your rotary airlock requirements. Explore our RALX product range, learn about our services, or check out industry solutions.