Pressure Systems International has announced the hiring of Jonathan Gravell as sales and marketing specialist. Gravell recently concluded an eighteen-week apprentice program learning all aspects of P.S.I.'s heavy-duty business including sales, marketing, production engineering, facilities, R&D, product development and technical services. 

He will report directly to Frank Sonzala, executive vice president, and will spend considerable time in the field visiting fleets to understand their needs and the benefits they expect from an automatic tire inflation system. 

Gravell graduated from Texas A&M University with a degree in Construction Science. Prior to joining P.S.I. he owned a residential home construction business.