Q:How a Dual Plate Check Valve Works
A Dual Plate Check Valve operates automatically, using the flow pressure of the medium to control the opening and closing of its two spring-loaded plates.
When fluid flows in the forward direction, pressure pushes the two semi-circular plates outward, allowing smooth flow through the valve with minimal resistance.
As the flow decreases or reverses, the torsion springs quickly close the plates, preventing backflow and protecting pumps, compressors, and other critical equipment from potential damage.
The valve’s design features a central hinge pin, spring-assisted closing mechanism, and short wafer-type body, making it lighter, more compact, and more efficient than traditional swing check valves.
Its ability to reduce water hammer, combined with low maintenance requirements and high reliability, makes the dual plate check valve ideal for cooling water systems, fire protection, seawater desalination, petrochemical applications, and marine pipelines—a dependable choice for modern fluid control systems.