A DN850 Check Valve is a large-sized, one-way valve designed for high-volume fluid systems. With a nominal diameter of DN850, or about 34 inches, it is engineered to handle substantial fluid flow rates while maintaining the integrity of the pipeline. This valve operates passively, opening to allow fluid to flow in the intended direction and closing automatically to prevent any backflow. Its primary function is to safeguard the entire fluid system, including pumps, other valves, and the pipeline itself, from damage that could be caused by reverse flow.
 

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