281.491.2331 13839 West Bellfort Street Sugar Land, TX
281.491.2331 13839 West Bellfort Street Sugar Land, TX
ISO 9001:2015
U.S. Patents
80 + U.S. Patents
Since 1954
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Refined Product Sampling

The Closer

Collect repeatable representative samples of jet fuel, aviation fuels, and gasolines with Welker’s Refined Products Sampling System. Designed to meet or exceed leading industry sampling standards, you can be assured of the system’s accuracy and safety. This system is ideal for flow rates starting at 4000 bbl/d.

inLoop™ RFP

The Welker inLoop™ RFP is a double-acting bypass sample pump designed to take quality samples of refined products, such as diesel, gasolines, and jet fuel. Incorporate the inLoop™ RFP into your blend header or refined product sampling system to ensure repeatable representative samples.


Integrate Welker’s LS-14 Constant Pressure Sample Container into your composite sampling system to collect and retain representative samples of light liquid products for accurate laboratory analysis and billing.