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Welker's patented constant pressure Premium Purge Sample Cylinder operates as an integral part of the total sampling system. It provides sample collections, storage and transport of liquid or gas samples at pipeline conditions and can be equipped with mixing capability. The cylinders include a product valve, precharge valve and burst discs. Purge valves are built into the end caps-giving you the advantage of purge without increasing the cylinder's overall length. All 2-inch sample cylinders are DOT and DNV approved.

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