Gas Samplers

The Welker Composite Gas Sampler, with its patented Vanishing Chamber® collection head, is used to determine the quality of a flowing stream. Welker Composite Gas Samplers are the only samplers capable of purging themselves 100% prior to sample collection regardless of gas quality. Welker Sampling Systems set the industry standard for accurate and repeatable measurement. The sampler interfaces with any metering system, is as accurate as any on-line analyzer and costs only one-fourth as much.