95 Chancellor Dr., Roselle, IL 60172



Multi-Gas and Liquid Flow Meter Calibration, On-Site Testing Services, Meter Sales, and Manufacturing

High-Quality Flow Calibration and Nuclear Field-Testing Services

Graftel assists commercial and industrial clients by providing flow meter measurement/certification services. Our capabilities include full-service in-house flow calibration; heat exchanger thermal performance; and reactor containment leak rate testing in nuclear facilities both domestically and internationally. We cater our services to each client’s unique calibration and testing needs.
Our experienced technicians provide assistance to the commercial, pharmaceutical, process, power generation, aerospace, and nuclear industries. As part of the ATS family of companies, we can offer additional inspection and consulting engineering capabilities when clients need a broader scope of services.

Achieve a Higher Standard of Operation

Graftel offers a personalized and professional team for your flow meter calibration needs. We have an accredited ISO-17025 in-house 700 GPM liquid and 18,000 LPM gas flow meter calibration lab. We also Offer a complete line of flow and testing equipment. Our highly trained technicians can perform accredited ISO-17025 on-site calibrations at your facility. Reducing down time, and ensuring equipment is back in operation is always a priority of ours.

Featured Products


Graftel Aircraft Leakage Testing System (ALTS)

Graftel offers a variety of modern high precision in-line and non-invasive clamp on flow meters, which can be catered to the customer needs in the commercial and nuclear industry.


Graftel Leak Rate Monitors

Graftel is offering a new generation of leak rate monitoring systems. These have become the industry standard in nuclear applications for leak detection.