The Dual Plate Check Valve (also known as a Butterfly Check Valve) is the industry standard for efficient backflow prevention in high-pressure and high-volume piping systems. Engineered with a lightweight, compact wafer design, it utilizes two spring-loaded semi-circular plates that fold together under forward flow and snap shut instantly when flow ceases.
This valve is specifically designed to eliminate water hammer and minimize pressure loss, making it a superior alternative to traditional full-body swing check valves.
Key Features & Benefits:-
- Non-Slam Operation: The spring-assisted plates close faster than the liquid can reverse, preventing damaging pressure surges (water hammer) and protecting sensitive pumps and instrumentation.
- Space & Weight Efficiency: Its compact "wafer" face-to-face dimensions and lightweight body significantly reduce installation costs and the need for heavy pipe supports.
- Low Pressure Drop: The streamlined dual-plate design offers a larger flow area than single-plate alternatives, ensuring maximum hydraulic efficiency.
- Versatile Installation: Unlike gravity-dependent valves, the spring-loaded mechanism allows for installation in horizontal, vertical, or inclined pipelines.
- Exceptional Durability: Features independent springs to reduce friction and prolong the life of the hinge pins and plates.
Technical Specifications:-
| Feature |
Specifications |
| Size Range |
2" to 48" (DN50 – DN1200) |
| Pressure Ratings |
ASME Class 150, 300, 600, 900 |
| Body Materials |
WCB (Cast Steel), CF8M (316 SS), Ductile Iron, Al-Bronze |
| Seat Types |
EPDM, Viton (FKM), Nitrile (NBR), or Metal-to-Metal |
| Standard Compliance |
API 594, API 598, ASME B16.34 |
Industrial Applications:-
The Dual Plate Check Valve is highly versatile and used across critical infrastructure:
- Water & Wastewater: Ideal for pumping stations, desalination plants, and irrigation.
- Oil & Gas: Used in refineries, offshore platforms, and midstream transmission lines.
- Power Generation: Perfect for cooling water systems and steam condensate loops.
- Chemical Processing: Reliable for handling corrosive chemicals and aggressive media.
- HVAC Systems: Essential for preventing backflow in large-scale chilled water circuits.
Why Choose Our Dual Plate Check Valves?
Our valves are manufactured to strict API 594 standards, ensuring maximum reliability and long-term performance. Whether you are dealing with gas, liquid, or steam, the dual-plate design provides a bubble-tight seal and reduces maintenance downtime.
Looking for a custom quote? Contact us today for technical assistance in selecting the right material and pressure rating for your project.
