Steam trap for liquid-gas separation drying device

The utility model discloses a steam trap for a liquid-gas separation drying device, and relates to the field of steam traps. The valve comprises an inlet end and an outlet end; the first pipe fitting is communicated with the inlet end; two ends of the second pipe fitting are respectively communicated with the first pipe fitting and the liquid-gas separating and drying device; communicating a second pipe fitting; wherein the first pipe fitting and the second pipe fitting are detachably fixed, and the first pipe fitting and/or the second pipe fitting are/is provided with an inner diameter increasing section. The first pipe fitting and the second pipe fitting are arranged between the liquid-gas separating and drying device and the valve in a communicated mode, and the first pipe fitting and the second pipe fitting are detachably connected in a sealed mode, so that the problem that time and labor are wasted when the steam trap is dismantled and cleaned after solid matter blocks the steam trap is solved. In additi