Efficient coalescence coalescence separator built-in filter is the unique design in our company, which adopts the special micro fiber materials combined with the internal ingenious structure to break the emulsion in the fine emulsified oil particle and gather to form large oil drops, and then floating to set the oil chamber, discharging out of the exist automatically, the oil content in the treated water≤ 5mg / L. During working process of the system, the oil content and flow rate of the coming fluid has little influence on the effect of the coalescence of small oil concentration in a stable outlet. Efficient coalescence separator 304 made of stainless steel shell as a whole with mirror-polished surface, elegant appearance and its structure shown in figure above.