Liquid trap device for gas

摘要

A liquid trap device for gas includes a trap housing and a liquid filter disposed in the trap housing. The liquid filter includes an upper end wall having an opening communicating with a gas inlet, a lower end wall and a cylindrical filter element providing a connection between the upper end wall and the lower end wall. An inflow guide tube is disposed in the filter element, the inflow guide tube having a uniform path area and extending from the opening to the lower end wall so as to guide gas flowing into the gas inlet into the filter element. A distance between a lower end of the inflow guide tube and the lower end wall is set at 20 mm or less. Thus, the liquid trap device for gas has a high performance for trapping liquid.