Dual Plate Check Valve are designed to prevent reverse flow in piping systems, providing reliable performance in highly corrosive and extreme environments. These valves are constructed from high-performance alloys such as Inconel, Hastelloy, Monel, Titanium, and Super Duplex Stainless Steel (SDSS), offering superior resistance to corrosion, high pressure, and extreme temperatures. The automatic operation of these check valves ensures fluid flows in one direction and stops backflow when the flow reverses. The robust construction and use of special materials make these valves ideal for critical applications across various industries, including chemical processing, offshore platforms, and power generation.
Specifications:
- Nominal Diameter: DN50 to DN1200
- Nominal Pressure: Class 150 to Class 2500
- End Connection:
- Flanged (ASME B16.5)
- Butt Weld (ASME B16.25)
- Socket Weld (ASME B16.11)
Design Standards:
- API 6D
- ASME B16.34
- ISO 9001
Special Materials:
- Inconel: Offers high resistance to oxidation and corrosion in extreme temperature environments.
- Hastelloy: Provides outstanding corrosion resistance in both oxidizing and reducing environments.
- Monel: Known for its toughness and ability to withstand highly corrosive conditions, especially seawater.
- Titanium: Lightweight with excellent corrosion resistance, especially in chloride-rich environments.
- Super Duplex Stainless Steel (SDSS): Provides superior strength and resistance to pitting and stress corrosion cracking, ideal for demanding conditions.
Applications:
Dual Plate Check Valve Flat Face are widely used in industries that require backflow prevention in harsh and corrosive environments, including:
- Offshore Oil & Gas Platforms
- Chemical Processing
- Petrochemical Industries
- Power Generation
- Marine Applications
- Desalination Plants
- Refining Plants
- Water Treatment Plants
These valves are engineered for extreme environments where standard materials would fail, ensuring long service life and optimal performance under harsh conditions.
Brands Like:
Dual Plate Check Valve Flat Face are widely used in industries that require backflow prevention in harsh and corrosive environments sourced from Brands below:
Key Benefits:
- Exceptional Corrosion Resistance: Special materials offer outstanding protection in highly corrosive environments such as seawater, chemicals, and extreme temperatures.
- Durability and Strength: Designed for high-pressure and high-temperature conditions, ensuring reliable performance and long service life.
- Versatility: Available in various high-performance alloys, providing flexibility for different industrial requirements.
Our Dual Plate Check Valve provide dependable backflow prevention and corrosion resistance for a variety of critical applications. With customizable materials and flexible sourcing options, we offer tailored solutions to meet your specific operational needs.
For more information about our products and services, or to discuss your specific valve requirements, feel free to contact us.
| Feature / Parameter | Specification Details |
|---|---|
| Available Sizes | DN50 to DN600 (2″ through 24″) |
| Pressure Rating Class | Class 125 / Class 150 / PN10 / PN16 |
| Thermal Range | -20°C to +180°C (-4°F to +356°F) |
| Body Materials | Cast Iron (ASTM A126 Cl. B), Ductile Iron (ASTM A536), Cast Steel (ASTM A216 WCB), Bronze (ASTM B62) |
| Flange Facing Type | Flat Face (FF) — Ideal for mating against cast iron flanges and full-face gaskets |
| Disc & Trim Options | Stainless Steel (ASTM A351 CF8M / CF8), Aluminum Bronze (C95800), Inconel X-750 Torsion Springs |
| Seat & Sealing | Vulcanized EPDM, NBR (Nitrile), Viton (FKM), or Metal-to-Metal Hardfaced Seats |
| Compliance & Standards | Designed to API 594 & API 6D, Flange Dimensions to ASME B16.1 / ASME B16.5 / EN 1092-2, Testing to API 598 |









