This check valve with rubber coated rolling ball as valve disc.Under the action of the medium, the valve can be opened or closed by rolling up and down on the integral slide in the valve body.Silent closure, no water hammer, good sealing performance.The valve body adopts the full flow channel, the flow is large,the resistance is small, the head loss is 50% less than the swing type.
Closed state: The ball falls down along the track by itself. Under the backflow pressure, the passage is blocked.
Open state: The ball is pushed to the side chamber of the valve body along the track by the water flow, forming a full passage.
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