Get the Most From Your On-line Analyzer

An on-line analyzer is only as accurate as the product supply stream it analyzes. Proper sample stream conditioning is essential in avoiding erroneous results. Welker Probe Regulators are designed to provide your chromatograph, H2S analyzer, thermtitrator, moisture analyzer, gravitometer, calorimeter, or other on-line gas analyzer with a properly conditioned sample

Welker probe regulators collect product from the center 1/3 of the flowing stream where the most representative sample is found	The point of regulation is near the tip of the probe. Thermal fins around the probe counter the Joules Thomson effect and avoid freeze-up	The patented automatic insertion models allow installation and removal from high pressure lines without interruption of pipeline flow.

"Why use a Welker Probe Regulator over pipeline wall connection?" With a pipeline wall connection, the sample is drawn from along the wall of the pipe where a high percentage of the contaminates travel. Welker Probe Regulators draw product from near the center of the flowing stream where the most representative sample is located. "Would not a simple probe and a standard instrument regulator provide the same results?" Welker Probe Regulators are designed with the point of regulation near the tip of the probe. The natural temperature drop that occurs at the point of regulation (Joules-Thompson effect) is offset by the thermal fins on the probe. The design also inhibits liquid carry-over. The need for multi-stage regulation, filters, and drip pots is eliminated.

"I need to be able to install the probe under pressure and easily retract it for pigging operations.'' Welker Automatic insertion Probe Regulators are designed for insertion into and removal from pressurized lines without pipeline shutdown. When used with an isolation valve, the Automatic Insertion Probe Regulator may be completely installed and totally removed without interrupting pipeline flow