Liquid trap device for gas

摘要

A liquid trap device for gas includes a trap housing 5 and a liquid filter 6 disposed in the trap housing 5. The liquid filter 6 includes an upper end wall 17 having an opening 17a communicating with a gas inlet 14, a lower end wall 18 and a cylindrical filter element 20 providing a connection between the upper end wall 17 and the lower end wall 18. An inflow guide tube 7 is disposed in the filter element 20, the inflow guide tube 7 having a uniform path area and extending from the opening 17a to the lower end wall 18 so as to guide gas flowing into the gas inlet 14 into the filter element 20. A distance C1 between a lower end of the inflow guide tube 7 and the lower end wall 18 is set at 20 mm or less. Thus, the liquid trap device for gas has a high performance for trapping liquid.