Patent ID: 6854346

Claim:
A purging system used in conjunction with a sampling system along a gas pipeline, the sampling system including a sample bottle for storing samples of gas from the pipeline, the purging system comprising: a purge block defining a flow path for fluid communication between the pipeline, the sample bottle, and atmosphere, the purge block being a unitarian homogeneous material block; a supply valve supported on the purge block and positioned along the flow path for controlling flow between the gas pipeline, the sample bottle and a bleed valve; a bottle valve for controlling flow between the purge block and the sample bottle; the bleed valve supported on the purge block and positioned along the flow path for venting to atmosphere; the bleed valve and a bleed portion of the flow path are positioned below the supply valve, such that fluid condensation about the supply valve flows through the bleed portion toward the bleed valve; and; the sample bottle containing a selected inert gas for purging air from the purge block and subsequently receiving the samples of gas from the pipeline.