The SFT30AF Lever Float Steam Trap operates based on the density difference between steam and liquid. The body and cover are constructed from cast steel, while all internal components are made of stainless steel with wear allowances considered to extend service life. It features a special flow channel design to eliminate water hammer and utilizes a patented flexible closing system combined with micron-level precision to ensure zero steam leakage. An integrated air vent prevents air binding, and an independent filter ensures operation in clean environments. The trap includes a drain plug at the bottom to remove internal water after shutdown, preventing the float from freezing.