Inverted bucket trap can exhaust air, not afraid of water hammer, good anti pollution performance. Small subcooling, steam leakage rate less than 3%, * large back pressure rate of 75%, more connectors, less sensitivity than free floating ball trap. Because the inverted bucket drain valve is closed by the upward buoyancy of steam, it is not suitable to use when the working pressure difference is less than 0.1MPa.

Working principle of inverted bucket drain valve

Inside the inverted bucket drain valve is an inverted bucket, which is a liquid level sensitive part. The bucket opening is downward, and the inverted bucket connecting lever drives the valve core to open and close the valve.

When the device is just started, the air and low-temperature condensate in the pipeline enter into the steam trap, the inverted bucket falls by its own weight, and the connecting lever of the inverted bucket drives the valve core to open the valve, and the air and low-temperature condensate are discharged quickly. When the steam enters the inverted bucket, the steam of the inverted bucket generates upward buoyancy, and the inverted bucket rises to connect the lever to drive the valve core to close the valve.

There is a small hole on the inverted bucket. When part of the steam is discharged from the small hole, the other part of the steam generates condensate. The inverted bucket loses its buoyancy and sinks by its own weight. The connecting lever of the inverted bucket drives the valve core to open the valve, cycle and discharge water intermittently.