Our Story…

With over 25 years of experience in flow meter calibration and nuclear industry services. Graftel offers a personalized and professional team for your equipment calibration needs. We have a fully accredited ISO-17025 in-house 900 GPM liquid and 18,000 LPM gas flow calibration lab. Our highly trained technicians can perform on-site calibrations at your facility. Reducing down time, and ensuring equipment is back in operation is always a priority of ours.

Graftel offers for sale, a complete line of modern flow meter instrumentation. This includes magnetic flow meters, non-invasive clamp on sonar based flow meters, high accuracy balanced flow meter systems, heat exchange monitoring systems, leak rate monitors, and hydrostatic testing systems. These are available in various configurations, ensuring that there is a solution to virtually any installation and application to accommodate the customers needs

Our field testing services include, flow meter calibration, heat exchanger performance testing, containment leak testing, and duct flow balancing. In addition to these services, the instrumentation systems needed to perform this testing are custom designed and offered for sale.

Graftel maintains a complete calibration lab for gas flow, liquid flow, air velocity, RH/dew point and temperature. Calibration work is accredited to ISO/IEC 17025:2017, ANSI/NCSL Z540-1:1994 (R2002), and ANSI/NCSL Z540.3:2006 sub clause 5.3. Laboratory equipment is maintained in accordance with MIL-STD-45662A. Nuclear power applications meet 10 CFR 50 Appendix B and Part 21 requirements. Our QA program has been audited by many nuclear utilities and industrial customers.

Our capabilities include but are not limited to the following types of equipment:

-Gas Flow (we specialize in using the specific gas type for your needs and can go up to 18,000 lpm)

-Liquid Flow (we can flow up to 900 gpm of water)

-General Electrical

-Temperature & Humidity



-Wind Tunnel (air velocity for anemometers and weather stations)

-Ability to calibrate Primary, Secondary and Working Standards in each category

-Ability to repair any instrument component level and certify to industry specifications                                                                                                              

Why choose Graftel calibrate your instrumentation?              

-Accredited to the highest standards

-Fast 5 business day turnaround time (expedite services available)

-Free pick-up and delivery with shipments of seven (7) items or more (regionally)

-Mobile Calibration Facility

-Leading State-of-the-art equipment

-Environmentally controlled multi-laboratory facility

-In house and onsite calibration services available

-Proprietary calibration software and smart phone app gives customers 24/7 access to certificates                                          

-Each calibration / repair comes with certificate traceable to N.I.S.T, and ISI 17025 accreditation    

-Ability to repair any instrument we calibrate to the component level and certify to Industrial specs

-Our network of labs ensures that you’ll only need to deal with one vendor

-Highly and experienced trained technicians

-Ability to see real-time order statuses, and be able to view/download calibration certificates

-Global shipping   

-Calibrate Standards