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 Resilient Seat Flap Type Valve is a high-performance flow control solution engineered for demanding water and neutral oil applications. Designed with a ductile iron body (Model 2311) and a fully rubber-lined resilient seat, this valve delivers exceptional leakproof performance and long-term corrosion resistance across a wide size range from DN50 to DN1000.

Key Features & Advantages

• Superior Leakproof Design: The resilient rubber seat completely encapsulates the valve disc, ensuring zero leakage at the seat-face seal even under full-rated pressure of 16kg/cm².
• Corrosion Resistance: 100% Fusion Bonded Epoxy (FBE) coating is applied to both inner and outer surfaces, meeting AWWA C550 standards. This dual-layer protection effectively prevents rust and chemical degradation in aggressive environments.
• Robust Construction: Manufactured from high-grade Ductile Iron (GJS-500-7 / ASTM A536 65-45-12), offering impact strength far superior to conventional grey cast iron valves.
• Full Bore Flow Path: The flap-type design minimizes flow resistance and pressure drop, maximizing pumping efficiency and reducing energy costs.
• Low Maintenance: The flap disc mechanism features a self-centering design with minimal moving parts, significantly reducing wear and extending service intervals.

Technical Specifications

Applications

• Municipal Water Supply & Distribution Systems
• Wastewater Treatment Plants
• Irrigation & Agricultural Water Networks
• Industrial Cooling Water Circuits
• HVAC & Plumbing Infrastructure
• Oil Transfer Pipelines (Neutral Oil)

Quality Assurance

Every valve undergoes a rigorous three-stage pressure test (Shell at 24kg/cm², Seat at 18kg/cm²) prior to shipment. Our ISO-certified manufacturing facility in Qingdao, China, maintains strict quality control throughout casting, machining, coating, and assembly processes.

Packaging & Logistics

• Packaging: Sturdy wooden case with internal foam cushioning to prevent transit damage.
• Delivery Time: Approximately two months from order confirmation.
• Supply Capacity: 300 containers per year, capable of handling large-scale project procurement.