Check valves

Describe

Is a mechanical device which allows fluid to flow normally in one direction does not allow reversing once again with three slots and one to enter the liquid and other liquid to exit the third slot through which the maintenance Check valves it draws the types of household use
And is always install these valves on the pumps in order to maintain the amount of suitable means within the pump in the case of stoppage of work in order to work properly pump

 
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