Dynamic Filter Efficiency (DFE) Testing by Scientific Services Inc.

SSI rests on the foundation of over 60 years of experience in the Fluid Power Industry. Our goal is to help client companies to develop effective contamination control solutions, and the products needed to successfully implement those solutions.

Charlie Juhasz, a recognized leader in the industry, has been a leader in developing Glass Fiber filter media, Metal Fiber filter media, and the manufacturing processes to turn these materials into high performance filtration products.

To advance the science and technology of contamination control we found existing industry practices, testing methods, and standards inadequate in today's dynamic environment.  The fluid power industry needs a realistic, accurate, and repeatable method to determine the performance of a filter, and its effect on fluid cleanliness. We developed the test methods and equipment to provide a powerful tool for the industry for evaluating filter performance for effective contamination control. We call it Dynamic Filter Efficiency.

•Filter testing

•Pump testing

•Servo valve and other hydraulic component testing

SSI provides testing services for various MIL-F and SAE specifications such as MIL-F-8815, SAE J2321, and PMA amongst others.

• Dynamic Filter Efficiency

• Media Migration

• Flow Fatigue

• Cold Start

• Bubble Point

We provide testing for all types of filter elements utilizing the CCTS and real time monitoring and particle counting.

• Steady state, and dynamic (variable) flow

• Flow rates from 1 to 100GPM

• Pressures from 1 to 3000PSI

• Contaminant tolerance test

• Wear test

• Break in test

• Endurance test

• Impending failure determination

SSI has developed both hot and cold chambers including cold start capabilities with realtime pressure and temperature monitoring.

• Temps from -65F to >200F

SSI and Charles Juhasz have been participating in the SAE Contamination panels (aircraft and ship) for over 40 years. We have been helping to drive the specifications leading to cleaner, safer systems.

PO Box 1464

Apex, NC 27502