Welker Composite Gas Sampler       Over two decades of research has led Welker to develop new techniques and equipment for increased gas sampling accuracy. Welker Composite Gas Samplers are the only samplers capable of purging themselves 100% prior to sample collection regardless of gas quality. More>>

Vanishing Chamber Sampler       The heart of the Welker Gas Sampling System is the GSS-4 Vanishing Chamber Pump. With its unique collection head design, the GSS-4 is the best sampler pump available. More>>

GSS-4PM Probe Mounted Gas Sampler   - Completely purges the system prior to collection of the sample. - No inlet check valve to restrict the flow of gas to the sampler. - Only 2 dynamic o-rings. - Samples at full pipeline pressure. More>>

Welker Micro Purge Sampler       - Featuring Welker's original fresh purge sample - Simple and compact - Low cost - Reduction of maintenance cost More>>

LSSM-1 Isokinetic Sampler   The Welker LSSM-1 is an isokinetic sampler designed to extract a representative sample of the flowing product out of a bypass stream and pump it into either a constant pressure or standard cylinder More>>

Sampling Accessories       FS-2 Differential Flow Switch LE-2 Liquid Eliminator F-1 Stainless Steel Filter ALS Analyzer Liquid Shut-Off DP-15 Drip Pot More>>

Arbitrator Sampling Enclosure   - Completely purges the system prior to collection of the sample. - No inlet check valve to restrict the flow of gas to   the sampler. - Only 2 dynamic o-rings. - Samples at full pipeline pressure. More>>