ALS

Protect your Analyzer Before Liquids Become a Problem

The Welker ALS Analyzer Liquid Shutoff provides dependable natural gas analyzer protection by stopping liquid slugs before they reach your gas chromatograph or analytical device. Installed upstream of an analyzer as a standalone component or part of a sample conditioning system, the ALS allows gas to flow freely during normal online sampling and automatically shuts off flow when liquids are present. Its simple, corrosion-resistant design, transparent housing, backflush capability, and leak-tight ball check valve help reduce costly analyzer damage, downtime, and maintenance.