Ductile Iron Flange Gate Valve

Crafted from robust and durable ductile iron, the ductile iron flange gate valve features a wedge disc that moves perpendicular to the fluid flow for tight shut-off. It is ideally suited for on/off applications in water, gas, and industrial systems. It includes high-pressure settings and underground installations. Key advantages include high strength, fatigue resistance, and corrosion resistance, which make it outperform standard cast iron. This valve is particularly suitable for demanding applications such as water treatment plants and petrochemical facilities.

Specification

Maintenance and Care Suggestions of Ductile Iron Flange Gate Valve  

To maximize the lifespan and reliability of your Haozhifeng® ductile iron flange gate valves, perform regular visual inspections for corrosion, leaks, or operational jams, keep the valve body clean and apply anti-corrosion protection for outdoor and corrosive environments, lubricate the stem and gearbox periodically with compatible lubricants, ensure smooth open&close operation. Store spare valves in a dry, ventilated area with sealed flange ends, and follow the product manual for pressure and temperature limits and genuine spare parts use. For quick issues, contact technical support promptly.

Application of Ductile Iron Flange Gate Valve

Municipal Water Distribution and Treatment

Ductile iron flange gate valves perfect for potable water supply networks, water treatment plants, and municipal piping systems. The ductile iron construction resists rust and pressure fluctuations, ensuring long-term stability for large-scale water delivery and purification processes.

Wastewater and Sewage Systems

Engineered to handle abrasive, corrosive media in sewage treatment plants, drainage networks, and wastewater pipelines. The durable cast ductile iron material withstands clogging and chemical erosion, maintaining unobstructed flow in harsh sewage environments.

Industrial Process Piping

Ductile iron flange gate valves compatible with a wide range of media—including water, steam, compressed air, hydraulic oil, and mild chemicals—for manufacturing facilities, refineries, and processing plants. Excels in high-pressure and high-temperature industrial conditions, ensuring leak-proof operation for critical production lines.

Fire Protection Lines

Ductile iron flange gate valve meets strict fire safety standards for fire sprinkler systems, fire hydrant networks, and emergency water supply lines. Features quick-opening/closing functionality and heat resistance, providing reliable shutoff control to support fire suppression efforts.

HVAC and Building Services

Ideal for heating, ventilation, and air conditioning systems in commercial buildings, hospitals, and industrial complexes. Regulates water or steam flow with precision, offering energy-efficient performance and long service life in constant-operation environments.

Important Notes

Always refer to Haozhifeng®’s product manual for specific maintenance requirements, as operating conditions may affect maintenance intervals.

Use only compatible spare parts and materials—non-genuine parts may compromise valve performance and safety.

For complex maintenance or troubleshooting, contact Haozhifeng®’s technical support team or qualified professionals to avoid improper handling.

By following these guidelines, you can maximize the reliability, efficiency, and lifespan of your ductile iron flange gate valves, ensuring long-term cost savings and operational peace of mind. For customized maintenance plans or technical assistance, feel free to contact Haozhifeng® at info@hzfcasting.com.

FAQ

Q1: What materials are your gate valves made of?

A1: The valve body is made of ductile iron.

Q2: What media are the ductile iron flange gate valves suitable for?

A2: Potable water, sewage, oil, gas, and general chemical media.

Q3: How to prevent cavitation in the valve?

A3: Avoid partial opening for extended periods and select the correct valve size to minimize pressure drops.

Q4: Do you offer OEM/ODM services?

A4: Yes, we support customized service like logo printing, special coatings, and non-standard pressure and caliber designs.

Q5: How to maintain the valve for long service life?

A5: Periodically lubricate the stem, inspect gaskets/packing for wear, and avoid forced opening/closing.