D*1FP servo valves enhance large hydraulic systems

Parker Hannifin has brought out the D*1FP range of pilot-operated servo proportional valves.

These are based on the company's direct-operated DFplus hydraulics control valve, which features Parker's Voice Coil Drive (VCD) technology.

The control behaviour of the Parker Hannifin D*1FP series valves ensures high stability in operation and easy, time-saving installation and set-up.

The VCD is based on the same principle used to vibrate loudspeaker diaphragms.
Parker is using it to control the high forces within hydraulic valves.
By producing dynamics on a par with modern servo valves, the VCD technology results in a much simpler valve structure.
The new pilot-operated D*1FP series has transferred the advantages of the VCD to larger frame sizes and higher flow-rate valves.
The high dynamics and precision of each new pilot valve deliver optimum control of the main spool, resulting in servo-class performance from the complete valve.
The control behaviour of the valves ensures high stability in operation and easy, time-saving installation and set-up.
Whether in the direct or pilot-operated valves, the VCD technology offers the same benefits of robust design and long life.
A new safety concept with the pilot valve can also reduce the need for additional shut-off valves in hydraulics systems.
It ensures the main stage is hydraulically balanced at power down and the main spool is in a safe position.
The D*1FP range is available in four sizes: NG10 (CETOP05), NG16 (CETOP07), NG25 (CETOP08) and NG32 (CETOP10).
With flow rates of up to 3000 litres a minute, the valves bring the advantages of VCD technology to almost any size of hydraulics system and are supported around the world by Parker's global network of manufacturing, sales and customer-support centres.
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