“Welker is an experienced manufacturer serving the Energy and other industries.  With 80+ patents, Welker offers products and solutions for applications in sampling, conditioning, filtering, regulation, injection, containers, and control.”


Natural Gas Sampling

Crude Oil Sampling Solutions

Instrument Grade Gas Conditioning

LNG Sampling Systems

Contact Us For a Quote:

Apex Instruments, Inc.

7200 E. Dry Creek Road C-102

Centennial, CO 80112

Office: (303) 804-0667

  • Facebook - Grey Circle
  • Twitter - Grey Circle
  • LinkedIn - Grey Circle
  • G+ - Grey Circle