Liquid carry over from the pipeline into the sample conditioning system should be prevented when sampling natural gas as it can directly impact the accuracy of the compositional analysis and also damage the analyser.
Industry standards state that equipment used to remove liquid from the sample must be operated at flowing temperature and pressure conditions.
Genie® Probes™ provide a means to insert Genie® Membrane Technology™ directly into a pipeline for the purpose of separating unwanted liquid and particulate from the gas sample at flowing temperature and pressure conditions, in compliance with industry standards.
The Genie GP2™ Membrane Probe consists of a housing and a membrane tip probe. The housing is installed in a depressurised pipeline through a vertically mounted thread-o-let or flange, and contains a “foot valve” in its lower end. Inserting the probe into the housing opens the “foot valve”, allowing pipeline gas to flow freely through the membrane.
Retracting the probe from the housing closes the foot valve, making it possible to perform probe maintenance without depressurising the pipeline. This insertion/retraction method is considerably less expensive and complex than pneumatic or hydraulic methods. An optional flow restrictor is available to prevent liquids from being forced through the membrane, and should be selected when the probe is being used in spot and composite sampling applications.
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