4 Mark Road, Suite C, Kenilworth, NJ 07033 973.253.0100



Welker has come to be recognized as a world leader in quality and innovative equipment for the oil and natural gas industry. Welker has set the standard in the sampling industry for more than 60 years.


Gas Sampling, Liquid Sampling, Instrumentation, Control Valves, Custom Solutions, Sampling Systems.

Speak with a Dedicated PRO-QUIP Representative

PRO-QUIP has developed an extensive product offering through partnerships with industry leading valve and instrumentation manufacturers. With extensive experience in the industry, count on us to meet your needs while improving your facility’s operation and efficiency.