AIV Product Line

After 75 years of inventing and manufacturing devices to improve the oil and gas industry, Welker has become a manufacturing leader. Welker offers a wide range of products, including analyzer protection, filter dryers, and automatic turbine meter lubrication. Welker is ISO 9001:2015 certified and complies with other standards, including ANSI, ASTM, and others. AIV stocks the Welker F-8 Filter, designed to remove particulates from natural gas and protect downstream instrumentation. As gas flows through the filter, the particulates are separated by the filter media, thus cleaning the gas for use by downstream pneumatic controllers or other instruments.