Ductile Iron Butterfly Valve

Ductile Iron Butterfly Valve relies on a resilient-seated quarter-turn rotating disc mechanism to deliver fast, low-torque flow isolation and throttling. Cast from high-strength ASTM A536 ductile iron, these valves feature a body material that offers significantly higher impact resistance, tensile strength, and ductility compared to traditional grey cast iron, making them ideal for high-vibration industrial and municipal distribution lines.

The valve disc rotates on a central shaft within a resilient EPDM, NBR, or Viton liner ring, forming a continuous 360-degree bubble-tight seal against system line pressure. The full internal lining insulates the ductile iron body from direct fluid contact, preventing internal corrosion and scaling while maintaining smooth, low-friction operation. Equipped with protective Fusion Bonded Epoxy (FBE) coating internally and externally, these valves resist outdoor weathering and aggressive soil environments.

Practical Advantages in the Field

• High Impact & Thermal Shock Resistance: Ductile iron construction absorbs pipeline stresses, thermal expansion, and mechanical impacts without cracking.

• Bi-Directional Bubble-Tight Shutoff: Resilient elastomeric seats ensure 100% zero-leakage sealing in both flow directions up to full pressure rating.

• Corrosion-Resistant Protective Coatings: Heavy-duty Fusion Bonded Epoxy (FBE) powder coating safeguards the valve body against corrosive media, humidity, and soil immersion.

• Compact, Space-Saving Footprint: Wafer and lug designs drastically reduce weight and installation length on pipe racks compared to traditional gate or globe valves.

• Low Operating Torque & Actuation Ready: Features top mounting pads compliant with ISO 5211 for direct-mount lever handles, gear operators, or electric/pneumatic actuators.

Brands We Provide

• GCC VALVES

• SVR GLOBAL

• FLOWORK

• EMERSON

• KITZ CORPORATION

Typical Deployments

• Municipal water distribution networks, raw water intake, and pumping stations

• Wastewater treatment plants, sewage effluent lines, and sludge handling

• Commercial HVAC chilled water loops, cooling towers, and condenser systems

• Seawater filtration, desalination plants, and marine ballast systems

• General utility water supply lines, fire protection systems, and irrigation

Our Ductile Iron Butterfly Valves at AustraliaValves.com are manufactured and tested in accordance with international safety standards, complete with manual lever, worm gear, or automated actuation options across Australia.

For sizing calculations, seat elastomer selection, or to request a quote, please contact us.