Ductile Iron Double Orifice Air Release Valve China Factory Suppliers
The Ductile Iron Double Orifice Air Release Valve is a high-performance engineering solution designed for automatic air evacuation and intake in water supply pipelines. Engineered to meet rigorous international standards including DIN, BS, AWWA, and ANSI, this valve effectively prevents air pockets from restricting flow and protects pipelines against vacuum-induced collapse, ensuring optimal hydraulic efficiency.
Constructed from premium ductile iron with a fusion-bonded epoxy coating, our valves offer exceptional corrosion resistance and structural durability. With a wide range of sizes from DN40 to DN400 and pressure ratings up to PN25, these valves are ideal for municipal water networks, industrial cooling systems, and irrigation projects, operating reliably in temperatures ranging from 0 to 80℃.
Detailed Parameters
| Body Material | Ductile Iron (EN1563-GJS-450 / BS2789) | Pressure Rating | PN10, PN16, PN25 |
|---|---|---|---|
| Size Range | DN40 - DN400mm | Design Standards | GB12224-2015 / EN1074-2000 |
| Sealing Material | EPDM (EN681-1 / BS2494) | Surface Treatment | Fusion-Bonded Epoxy Paint |
| Medium | Water | Temperature Range | 0 - 80℃ |
| Float Material | ABS / Nylon / Brass | Hardware | Stainless Steel / Carbon Steel |
Key Advantages
Corrosion Resistance
Fusion-bonded epoxy coating provides a superior barrier against oxidation and aggressive environments.
Extended Lifespan
High-grade ductile iron construction ensures long-term structural integrity under pressure.
Dual-Functionality
Double orifice design allows for both large-volume air release and small-bubble evacuation.
Global Compliance
Fully compliant with DIN, BS, AWWA, and ANSI standards for seamless international integration.
Precision Sealing
Premium EPDM seals prevent leakage and maintain vacuum stability in critical water lines.
Easy Installation
Standardized flange connections and compact design facilitate rapid deployment and maintenance.
Product Gallery
Management Platforms
Quality Control
Strict adherence to EN1563 and BS2789 standards for every casting.
Material Sourcing
Premium ductile iron and stainless steel sourced from certified mills.
Pressure Testing
100% hydrostatic testing conducted for PN10 to PN25 ratings.
Coating Process
Advanced fusion-bonded epoxy application for maximum protection.
Logistics Hub
Efficient supply chain management for global DN40-DN400 distribution.
Technical Support
Expert guidance on installation and maintenance for water systems.
Investment Return Comparison
| Feature | Standard Cast Iron Valve | Yongqian Ductile Iron Valve |
|---|---|---|
| Tensile Strength | Low / Brittle | High / Ductile |
| Corrosion Life | Short (Basic Paint) | Long (Fusion Epoxy) |
| Pressure Stability | Moderate | Excellent (up to PN25) |
| Maintenance Cycle | Frequent | Extended Intervals |
| Total Cost of Ownership | Higher (Replacement cost) | Lower (Longevity) |
Frequently Asked Questions
Ductile iron offers significantly higher tensile strength and impact resistance, reducing the risk of fracture under pressure surges or temperature fluctuations.
One orifice handles the rapid release of large air volumes during pipeline filling, while the second orifice releases smaller air bubbles during normal operation.
Yes, it is specifically designed to protect the ductile iron body from soil corrosion and moisture, making it ideal for buried water supply lines.
Our valves are manufactured to meet DIN, BS, AWWA, and ANSI standards, ensuring compatibility with global piping systems.
The valve is rated for water applications with an operating temperature range from 0°C up to 80°C.
These specific models are designed for water. For other mediums, please consult our technical team to ensure seal and body material compatibility.
