Operating efficiency assessments of high-pressure natural gas filters are significant for the protection of pipelines and equipment. The conventional particulate measurement method setting a new isoaxial sampling nozzle in high-pressure natural gas pipelines will bring a safety challenge due to pipeline stress change. The work presents a study on the performance of powder sampling using pressure port for differential pressure gauges in an effort to provide a safe and convenient solution for the efficiency assessment of high-pressure natural gas filter.

The performance of powder sampling efficiency of the pressure port at various gas velocities and sampling velocities was characterized in...