The Welker IRD-4SS is designed to provide your chromatographs, H2S analyzer, thermtitrator, moisture analyzer, gravitometer, calorimeter, or other on-line gas analyzer with a properly conditioned sample stream.

The Welker IRD-4SS is designed with the point of regulation near the tip of the probe in the flowing stream. The thermal fin design mitigates the Joule-Thomson effect. IRD probe style regulators can only be installed with a depressurization of the pipeline.