Patent ID: 8221530

Claim:
A water trap comprising: an inlet for receiving a gas flow; two semipermeable membranes having a water penetration pressure greater than 750 hPA and being comprised of PTFE laminates; a tank; two filter elements arranged downstream of corresponding ones of said semipermeable membranes; a sensor; a first one of said semipermeable membranes and a first one of said filter elements defining a first path communicating with said inlet and forming a gas analysis path to said sensor; a second one of said semipermeable membranes and a second one of said filter elements defining a second path communicating with said inlet and a flush/purge path parallel to said first path and said sensor; and, said semipermeable membranes and said filter elements being configured to direct said gas flow via said first and second paths at a ratio lying in a range of 90/10 to 75/25.