This valve utilizes the difference in specific gravity between steam and condensate, using buoyancy to control the opening and closing of the valve. The valve contains an inverted stainless steel barrel (float), connected to the valve core via a lever system. A small hole in the top of the barrel allows air and carbon dioxide to escape, focusing them at the top of the trap. Steam released through the vent condenses due to the heat dissipated by the trap. This design ensures efficient operation of the trap, allowing for the timely removal of condensate from the system while preventing steam leakage.

Working process

1. When the steam system is started, condensate enters the steam trap and forms a water seal outside the inverted bucket. Due to the gravity of the bucket, the valve core opens and the condensate is discharged through the valve mouth on the top of the bucket.	2. As the steam enters the inverted barrel, it gathers at the top of the barrel to generate buoyancy. When the buoyancy is greater than the gravity of the inverted barrel, the barrel body slowly rises, driving the valve core to gradually move toward the valve seat. At the same time, the valve core is quickly closed by the pressure difference.	3. With the inflow of condensate and the condensation of steam in the barrel, the gravity of the floating barrel gradually increases and begins to produce a downward pulling force on the lever. The condensate level continues to rise, and the force generated continues to increase until it can overcome the pressure difference and open the valve seat.	4. The valve seat begins to open, reducing the differential pressure acting on the valve core. The barrel rapidly descends, fully opening the valve seat. Non-condensable gases accumulated at the top of the trap are discharged first, followed by condensate. As water exits the barrel, it carries waste with it out of the trap. As condensate is discharged, steam begins to enter the trap again, and a new cycle begins.