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Pneumatic automatic drainer working principle

2018-06-13 16:02:22

When there is no pressure inside the cup, the float falls due to its own weight, the valve closes the hole in the cavity, the piston is pressed down by the spring, and the condensate drains.
When there is pressure inside the cup, when the pressure is at 1kgf/cm2, the piston overcomes the upward pressure of the spring, so the drain is closed and the interior of the cup is cut off from the outside.
When there is condensed water in the cup, when the condensate collects to a certain degree, the float rises due to the float, opens the hole in the inner cavity, the pressure enters the inner cavity, the piston is pressed by the pressure and the spring, and the condensed water is drained through the drainage pipe.

 

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