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The gate closes automatically due to buoyancy and opens with gravity, ensuring reliable operation.
Functions in emergencies without power or operators, increasing water tightness with rising external water levels.
Adjusts opening and closing speeds based on water level changes for effective backflow prevention.
Made of durable, corrosion-resistant stainless steel, requiring no extra power or operators.
Normally open, serving as an ecological passageway and preventing pollution and odor through quick drainage.
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