Optimizing Piping Integrity with High-Performance Iron Flanges

As industrial operations scale in complexity, ensuring the reliability of pipeline connections becomes critical. Iron flanges, used to connect pipes, valves, pumps, and other equipment, provide a stable, leak-resistant interface that can withstand a wide range of operational stresses. With enhanced structural engineering and tested sealing performance, they are a preferred component for fluid and gas transmission systems across industrial sectors.

Advanced Construction for Structural Stability

Our iron flanges feature a one-piece integrally cast design, where the flange and body are formed together to enhance overall strength and pressure tolerance. Manufactured from gray cast iron (HT250) or ductile iron (QT450-10), the flanges are built for long-term mechanical performance even in high-load environments. They support a dynamic load of 30.7 kN and static loads up to 19 kN, making them suitable for heavy-duty systems.

With operating conditions ranging between -20°C to 165°C and working pressures up to 400 psig (2,760 kPa), these flanges offer consistent performance in a variety of environments—from municipal waterworks to industrial heating loops.

Versatile Sealing for Demanding Media

Effective sealing is vital for both system efficiency and safety. These flanges employ a metal-rubber composite sealing interface, which combines flexibility with pressure resistance. In pressure integrity testing under GB/T 13927 standards, these flanges achieved a leakage rate significantly below international norms, ensuring optimal performance across water, steam, oil, and gaseous media.

For projects with environmental compliance requirements, optional non-asbestos gaskets offer a safer and equally effective alternative. This aligns with green building initiatives and regulatory expectations in sensitive applications such as food processing and clean energy systems.

Designed for Convenience and Field Efficiency

Maintenance and installation flexibility are essential on job sites. The flanges are designed with standard bolt hole spacing, allowing for rapid alignment and easy integration into pre-existing networks. The built-in lubrication port is a practical feature that simplifies routine maintenance and minimizes friction-related degradation—contributing to longer service intervals and reduced operational downtime.

The flanges support a wide range of pipeline sizes, from DN50 to DN2000, and are available in ASME and metric (PN) pressure ratings, making them a fit for international infrastructure projects.

Third-Party Tested, Industry Approved

Every product undergoes strict MT and PT testing procedures to verify internal soundness and surface integrity, ensuring no hidden defects go undetected. The flanges are manufactured in accordance with SH/T 3406-2022 petrochemical standards, confirming their suitability for use in high-spec environments such as refineries, power plants, and heavy manufacturing facilities.

With a combination of robust construction, precise sealing, ease of integration, and certified quality, these iron flanges deliver a dependable and scalable solution for modern pipeline challenges. From planning to field installation, they meet the evolving needs of industrial engineers and operations managers seeking durable, performance-certified components.