Manufacturers directly supply rubber flap check valve

The rubber flap check valve is characterized by large load change, small opening and closing frequency, a closed or open state, the common cycle is very long, and does not require the movement of moving parts. But once the "switch" requirement, it must be flexible, which is more demanding than the common mechanical movement. Because the rubber flap check valve in most practical use, qualitatively determined for rapid closure, and in the rubber flap check valve is closed at the moment, the medium is moving in the direction, followed by the closure of the valve flap, the medium from the maximum backflow speed rapidly decreases to zero, and the pressure is rapidly increased, that is, the "water hammer" phenomenon may be destructive to the pipeline system. For the high pressure piping system with multiple pumps in parallel, the water hammer of the rubber flap check valve is more prominent.