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MANUAL OF CHECK VALVE
Created on 2024.08.05
The straight-through lift check valve should be installed on the horizontal pipeline, and the vertical lift check valve and the foot valve are generally installed on the vertical pipeline, and the medium flows from bottom to top.
Swing check valves are usually installed in horizontal lines, but can also be installed in vertical lines or dump lines.
When installing the check valve, special attention should be paid to the flow direction of the medium, and the normal flow direction of the medium should be consistent with the direction of the arrow indicated on the valve body, otherwise the normal flow of the medium will be cut off. The foot valve should be installed at the bottom end of the suction line of the pump.
When the check valve is closed, it will generate water hammer pressure in the pipeline, which will cause damage to the valve, pipeline or equipment in serious cases, especially for large-mouth pipelines or high-pressure pipelines, so it should attract the attention of the selector of the check valve.
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