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LAS VEGAS, March 11, 2008 – Parker, the global leader in motion and control technologies, has revolutionized the drive technology of its high response Series DFplus Direct Operated Proportional DC Valves, which are more cost effective and reliable than servovalves in such applications as blow molding and material testing.

Driven by the new patented VCD® actuator, the manifold-mounted DFplus reaches the frequency response of servovalves, featuring extremely high dynamics combined with maximum flow. It is used for high accuracy positioning of a hydraulic axis and for controlling force and velocity.

In contrast to standard proportional solenoid drives, the patented VCD technology actuates the spool by using a movable coil. The spool rigidly connects to the coil, which moves over a permanent magnetic cylinder free of friction. When the coil is energized, the spool moves to the desired position. The spool position is fed back into the control electronics via a high-resolution feedback system. When the power supply is shut off, a spring drives the spool back to a defined position.

Compared with solenoid-driven valves, the DFplus, with on-board electronics, can also be used in applications with pressure drops up to 315 bar (4500 PSI) across the valve. The valve's maximum tank pressure is 315 Bar with an external drain Y-port.

With annual sales exceeding $10 billion, Parker Hannifin is the world's leading diversified manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of commercial, mobile, industrial and aerospace markets. The company employs more than 57,000 people in 43 countries around the world. Parker has increased its annual dividends paid to shareholders for 51 consecutive years, among the top five longest-running dividend-increase records in the S&P 500 index. For more information, visit the company's web site at http://www.parker.com, or its investor information site at http://www.phstock.com.