About Purple Mountain Technical Group

Elevating flow solutions to new heights

Can we help you?

YEARSIn Business


Analysis Tool


Home Country


Analysis Level


Project Locations
Our Mission: To be a premier fluid flow consultancy by focusing on technical excellence, superior customer service, strategic partnerships and a collaborative, enjoyable working environment for all employees.

A Wealth of Experience, a Reputation for Excellence

Affordable Cost

Efficient Projects

Detail Oriented

Quality Control

Timely Results

Because we use and work directly with AFT software, PMTG engineers are able to complete projects in a fraction of the time.

Wealth of Experience

Throughout our history, we have been honored to work alongside engineers and companies to successfully complete difficult projects. Let us put our knowledge to work for you.

Peace of Mind

Know that your project is in capable hands. Our engineers work at the highest ethical, engineering, and business standards.

Meet Our Team

Trey Walters, P.E.
Trey Walters, P.E.President, Principal Consultant, and ASME Fellow
In 1993, Mr. Walters founded Applied Flow Technology (AFT) after previously working with Babcock & Wilcox in Ohio and General Dynamics in California. At AFT, he was the lead developer for the software tools AFT Fathom, AFT Arrow and AFT Impulse and has been heavily involved in the development of all other AFT software tools brought to market. For Purple Mountain, Mr. Walters has utilized his fundamental understanding of fluid dynamics, performing and managing many consulting projects in the areas of fluid and thermal system modeling. Example projects include a cooling water system flow analysis, benchmarking at a pharmaceutical plant and a waterhammer analysis at a refined product tank farm. Mr. Walters has both M.S. and B.S. degrees in Mechanical Engineering from the University of California at Santa Barbara and is a Registered P.E. in the state of California.
Jeff Olsen
Jeff OlsenVice President and Principal Consultant
In 1996, Mr. Olsen began work with Applied Flow Technology after previously working with ESSCOR and General Dynamics in California, bringing with him a strong analytical and thermodynamic background. Mr. Olsen’s primary responsibilities at AFT are to continue development of existing fluid flow and thermodynamic software products and to initiate development of new products. For Purple Mountain, Mr. Olsen has worked on several consulting projects including waterhammer analysis of the water deluge system at Kennedy Space Center, developing a large scale model of a hospital chilled water system with 20 pumps, and optimizing a 145-km high-pressure sea water injection pipeline for an oil field that saved the customer millions of dollars. Mr. Olsen has both M.S. and B.S. degrees in Mechanical Engineering from Brigham Young University.