Isotherm, Inc. consists of highly qualified people with years of design and manufacturing experience. The technical know-how coupled with excellent customer service makes this company different than others. Our motto is "Customer First".

We are also the only company that manufactures both Shell and Tube and Plate and Frame Heat Exchangers. We hold ASME certification for "U" and "UM" stamps and the National Board Repair stamp "R". These are Universal Seals for Quality. We are proud to be part of a Quality Team serving Quality Customers.  We can also design and fabricate according to PED with CE marking and according to Det Norske Veritas (DNV) classification.  Isotherm also conforms to Canadian Registration (CRN), API 660, Australian Standard 1210 and New Zealand PECPRO.

Team Members

Zahid Ayub
President

Has years of experience in the field of Heat Transfer and Fluid Flow. Holds Ph.D. in mechanical engineering from Iowa State University (1986). Has designed and fabricated several thousand heat exchangers, pressure vessels and systems installed worldwide. He is recognized as one of the pioneers in the field of Ammonia Enhanced Heat Transfer. Author of over seventy International Journal and Conference papers. Holds six United States patents and several in process. He is a recipient of Michigan New Product Award, ASHRAE Distinguished Service Award and ASHRAE Research Service Award. He is Fellow of ASME and ASHRAE and a member of the Scientific Council of International Center for Heat and Mass Transfer representing United States. He is a registered Professional Engineer in the States of Michigan and Texas. He is an active member of ASME, ASHRAE, AICHE, IIAR, RETA, IIR, IoR (UK), Eurommon and Sigma Xi Honor Research Society. He served on ASHRAE Refrigeration Committee (Chair) and Research Committee. He is Adjunct Professor at University of Texas-Arlington, and volunteers his time lecturing at universities around the world. He is founder and Director of Natural Fluids Refrigeration Center at GIK Institute of Technology.  He served as Technology Editor for the International Journal of Enhanced Heat Transfer and is currently Executive Editor of International Journal of Heat Transfer Engineering and ASME Journal of Thermal Science and Engineering Applications. He is also a reviewer to several other heat transfer journals.

Al Faisal
Production Manager

Al has several years of on the job experience in fabrication and quality assurance fields. He is well versed in the area of structured surface tube production and CNC machining. Previously, he worked with several companies in the United States involved in the production of heat transfer equipment. He holds a Technical Associate degree in the field of Chemical Science and Instrument Controls.  He is pursing BS degree in Mechanical Engineering at the University of Texas-Arlington. 

Adnan Ayub
Engineering Manager

Adnan has several years of experience in the field of heat exchanger/pressure vessel design and fabrication with emphasis on ASME Code, TEMA and API 660 Standards, PED and DNV Classifications. Holds BSME from Rose-Hulman Institute, declared as the best Engineering School in USA according to US and World News Report, MEngME from Texas A & M and is currently completing DoctorEng in Mechanical Engineering from Texas A & M.  He is author of several archival journal papers and has applied for US patent for a novel heat exchanger. He is an active member of ASME and ASHRAE.