Metallic Seat Flap Valve Industrial With Ductile Iron Material
Working Pressure:16kg/cm²
Shell Test Pressure:24kg/cm²
Seat Test Pressure:18kg/cm²
Media:Water,Neutral Oil
Working Temperature:0-52°C 100%
Fusion Bonded Epoxy Coating for Inner and Outside Surface
Flange Drilled According to EN1092 PN10,PN16
Size:DN50--DN1000
Product Overview
The Metallic Seat Flap Type Valve is a heavy-duty industrial flow control solution built for demanding high-temperature, high-wear applications. Featuring a precision-machined metal-to-metal seating surface combined with a ductile iron body (Model 2311), this valve offers superior durability and reliable sealing performance in harsh operating environments. Available in sizes from DN50 to DN1000, it is engineered to withstand the toughest conditions in water, wastewater, and neutral oil systems.
Key Features & Advantages
- Metal-to-Metal Seating: The metallic seat provides exceptional wear resistance and maintains sealing integrity under high-velocity flow conditions where resilient seats may degrade. Ideal for applications involving suspended solids or abrasive particles.
- High Temperature Tolerance: Unlike resilient-seated alternatives, the all-metal construction allows stable operation across wider temperature ranges without seat deformation or softening.
- Corrosion Protection: 100% Fusion Bonded Epoxy (FBE) coating on both inner and outer surfaces provides comprehensive protection against rust, chemical attack, and environmental degradation, meeting AWWA C550 requirements.
- Industrial-Grade Ductile Iron Body: Manufactured from GJS-500-7 / ASTM A536 65-45-12 ductile iron, delivering 2-3x the tensile strength and impact resistance of conventional grey cast iron.
- Full Bore, Low Head Loss: The flap-type disc design ensures an unobstructed flow path when fully open, minimizing pressure drop and reducing pumping energy costs.
- Self-Cleaning Action: The flap disc’s articulation naturally sheds debris during operation, reducing clogging and maintenance frequency in dirty media applications.
Technical Specifications
| Parameter | Value |
|---|---|
| Working Pressure | 16 kg/cm² |
| Shell Test Pressure | 24 kg/cm² |
| Seat Test Pressure | 18 kg/cm² |
| Seat Type | Metallic (Metal-to-Metal) |
| Media | Water, Neutral Oil |
| Working Temperature | 0 - 52°C |
| Surface Treatment | Fusion Bonded Epoxy (Inner & Outer) |
| Flange Standard | EN1092 PN10 / PN16 |
| Size Range | DN50 - DN1000 |
| Body Material | Ductile Iron |
| Model Number | 2311 |
| Origin | Qingdao, China |
| Certification | ISO |
Applications
- Industrial Water Circulation & Cooling Systems
- Municipal Water Distribution Networks
- Wastewater & Sewage Treatment Plants
- Mining Slurry & Tailings Pipelines (Neutral pH)
- Power Plant Cooling Water Circuits
- Oil & Gas Auxiliary Water Systems
- Irrigation & Agricultural Mainlines
Quality Assurance
Each Metallic Seat Flap Valve undergoes a comprehensive three-stage hydrostatic pressure test (Shell: 24kg/cm², Seat: 18kg/cm²) at our ISO-certified facility in Qingdao. Every valve is individually serialized and traceable through casting, machining, assembly, and coating stages. Dimensional inspection to EN1092 flange standards is performed on 100% of production.
Packaging & Logistics
- Packaging: Export-grade wooden crate with internal bracing and VCI (Volatile Corrosion Inhibitor) protection for metal surfaces.
- Delivery Time: Approximately two months from order confirmation.
- Supply Capacity: 300 containers per year, with flexible batching for both OEM projects and distributor stock orders.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.