The DN600 stainless steel dual plate check valve is a high-performance non-return valve engineered for large-diameter pipeline systems, featuring a split dual-disc structure with a central pivot design. The valve body is precision-cast from 2507 super duplex stainless steel, delivering exceptional corrosion resistance and mechanical strength to withstand harsh operating conditions. The dual-disc assembly, paired with a spring-assisted closing mechanism, ensures fast, non-slam shutoff to prevent water hammer and reverse flow damage.
Key structural details include:

- Full-bore flow path design to minimize pressure loss and ensure high flow efficiency;
- Flange connection with standardized bolt hole spacing for seamless integration with existing pipeline systems;
- Lifting lugs integrated into the valve body for safe installation and maintenance in large-diameter applications;
- Modular internal components for easy disassembly, inspection, and replacement, reducing long-term maintenance costs;
- Compliance with international standards (API 6D, ISO 5752, EN 12266-1) for dimensional accuracy and performance reliability.

Superior Corrosion Resistance: 2507 super duplex stainless steel construction provides outstanding resistance to pitting, crevice corrosion, and chloride stress corrosion cracking, making it ideal for seawater, brine, and other highly corrosive media.
Non-Slam Performance: The spring-assisted dual-disc design enables rapid, smooth closure, eliminating water hammer and protecting pipeline equipment from pressure surge damage.
High Flow Efficiency: Full-bore flow path and optimized disc geometry minimize flow resistance, reducing energy consumption and ensuring efficient fluid transmission in large-diameter systems.
Robust Structural Strength: Precision-cast super duplex steel body and disc offer excellent mechanical strength, withstanding high pressure and temperature fluctuations in industrial applications.
Low Maintenance Design: Modular internal components and durable materials reduce wear and tear, extending service life and minimizing unplanned downtime.
Versatile Compatibility: Standard flange connection and customizable pressure ratings/sealing materials enable adaptation to diverse pipeline systems and operating conditions.

Temperature Range: -20℃ to 150℃ (standard), customizable to -40℃ to 200℃ for extreme temperature applications;
Pressure Range: 0.6MPa to 2.5MPa (PN10/PN16/PN25, Class 150/Class 300);
Medium Compatibility: Suitable for corrosive fluids (seawater, brine, chemical solutions), non-corrosive fluids (freshwater, oil, gas), and multi-phase fluids;
Installation Orientation: Horizontal, vertical, and inclined pipeline installation, with gravity-assisted operation optimized for horizontal flow;
Environmental Adaptability: Resistant to coastal humidity, salt spray, and industrial corrosive atmospheres, suitable for onshore and offshore engineering projects.