Stainless steel traps are equipment that uses and utilizes steam that only requires steam. Condensed water must be produced in this kind of equipment, and the condensed water becomes a harmful fluid. At the same time, it also mixes with air and other non-condensable gases, which becomes the cause of equipment failure and performance degradation. The function of the trap has the following three aspects: (1) It can quickly remove the condensed water produced. (2) Prevent steam leakage.