Stainless Steel Casting Services Butterfly Valve Disc

In fluid control systems where corrosion resistance, structural integrity, and long-term reliability are critical, the butterfly valve disc stands as a core component. Our specialized Stainless Steel Casting Services are engineered to produce high-performance Butterfly Valve Discs that meet the stringent demands of industrial applications. We combine metallurgical expertise with precision manufacturing to deliver discs that ensure optimal sealing, minimal torque operation, and exceptional service life in the most challenging environments.

Premium Stainless Steel Alloys for Demanding Service
We utilize a range of corrosion-resistant alloys selected based on specific media and operating conditions:

• CF8/AISI 304: Provides excellent general corrosion resistance for water, air, and mild chemical services.

• CF8M/AISI 316: Offers superior resistance to chlorides and acidic environments with added molybdenum content, ideal for marine and chemical processing applications.

• CF3/AISI 304L & CF3M/AISI 316L: The low-carbon versions minimize carbide precipitation during casting and welding, ensuring enhanced corrosion resistance in welded assemblies and high-temperature services.

• Duplex & Super Duplex Stainless Steels: For extreme chloride-rich environments, we cast discs from grades like 2205 (Duplex) and 2507 (Super Duplex), which provide exceptional strength and resistance to stress corrosion cracking.

Precision-Controlled Casting Process
Our manufacturing process is tailored to create discs with geometric accuracy and metallurgical soundness:

• Investment Casting Process: Also known as the lost-wax method, this is the ideal technique for producing butterfly valve discs. It allows for the creation of complex aerodynamic profiles, smooth as-cast surfaces (typically 125-250 Ra microinches), and near-net-shape geometry, significantly reducing machining costs and material waste.

• Shell Molding (Croning Process): For certain larger disc sizes, we employ resin-coated sand molds, which provide a superior finish and dimensional accuracy compared to conventional green sand casting.

• Process Control: Rigorous control over melting (in induction furnaces under protective atmosphere), pouring temperatures, and solidification ensures a homogeneous, defect-free microstructure free from shrinkage, porosity, or inclusions that could compromise disc integrity.

Integrated Machining and Finishing
As a complete service provider, we deliver fully finished discs. Our in-house CNC machining centers precision-machine the disc bore, sealing surface, and periphery to exact tolerances. We also offer a range of surface finishes, including precision grinding and polishing of the sealing surface to ensure a perfect, bubble-tight shut-off with the valve seat.

Proven Applications Across Industries
Our cast stainless steel butterfly valve discs are specified for critical services in:

• Water & Wastewater Treatment: For handling treated water, sewage, and mild chemicals.

• Chemical & Petrochemical Processing: Resisting corrosive acids, alkalis, and solvents.

• Oil & Gas: Used in upstream, midstream, and downstream applications.

• Marine & Offshore: Handling seawater and ballast water in highly corrosive saltwater environments.

• Power Generation: For cooling water systems and FGD (Flue Gas Desulfurization) applications.

Partner with our foundry for butterfly valve discs that guarantee performance and durability. Our stainless steel casting services deliver components that enhance valve efficiency, reduce maintenance costs, and ensure reliable operation in your most critical fluid handling systems.