The SFT50 Lever Float Steam Trap operates on the density difference between steam and liquid. It features a WCB cast steel body and cover with all-stainless steel internals for durability. The trap utilizes a double balanced valve seat for an exceptionally long service life and a water seal design to prevent raw steam leakage. It includes an integrated air vent to prevent air binding and a bottom drain plug to prevent freezing. Displacement curves can be selected based on pressure differential, and it supports a back pressure rate of up to 95%.