TeachMeFinance.com - explain Check valve
Check valve The term 'Check valve' as it applies to the area of reclamation can be defined as ' Any device which will allow fluid or air to pass through it in only one direction. A special valve with a hinged disc or flap that opens in the direction of normal flow and is forced shut when flows attempt to go in the reverse or opposite direction of normal flow. A device preventing backflow in pipes. Water can flow readily in one direction but any reversal of the flow causes the check valve to close'.
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