Swagelok Chicago (also known as Chicago Fluid System Technologies) is a company that produces fluid systems and operates as an authorized sales and service center. The company offers fittings, valves, tubing, regulators, leak detectors, gas filters, and other products. Swagelok Chicago also provides advisory, installation, and training services. It caters to the refining, chemicals, semiconductors, power, transportation, research, and pharmaceuticals sectors.