You will find PTI Technologies everywhere you look, from space to health care products, from maintaining hydraulic systems used in Aviation to final filtration of Photoresist Chemicals. PTI has demonstrated leadership in the design and development of products ranging from permanent filtration elements to light-weight titanium modules for flight applications. At PTI we confidently provide our customers with appropriate solutions for their needs… whether it be a high capacity SpinPakTM element for a Fluid Power application or the overhaul of a hydraulic module for a Boeing aircraft. Our ability to apply advanced technology in creating unique, environmentally responsible filtration solutions sets us apart from all others.

Founded in 1924 as Motor Improvements, Inc., PTI pioneered the practical application of filtration technology for a wide range of applications. In 1926, the company introduced the first disposable oil filter for use in automobiles. During W.W.II, as “Purolator”, we were the primary vehicle oil filter supplier to the U.S. Government. In the late 1950’s, we established ourselves as the leading hydraulic filtration supplier to the aerospace industry by developing innovative dedicated systems and components. In 1984 PTI was acquired by HR Textron making PTI the second largest aerospace filtration provider. Acquired in 1992, PTI is a subsidiary of ESCO Technologies Inc. (NYSE: ESE), headquartered in St. Louis, Missouri.

Today, our products are essential components of filtration processes in virtually every major industry including aerospace, chemical process, pharmaceutical, petrochemical, microelectronics, agriculture, and many more.


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