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687478
Hydraulic Controls - Europe

D31FP Pilot Operated Servo Proportional DC Valve

The series of pilot operated servo proportional directional control valves D31FP transfers the advantages of the Parker patented Voice Coil Drive (VCD®) to larger frame sizes and thus high flow rates.

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The series of pilot operated servo proportional directional control valves D31FP transfers the advantages of the Parker patented Voice Coil Drive (VCD®) to larger frame sizes and thus high flow rates.

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Description

The series of pilot operated servo proportional valves D31FP transfers the advantages of the Parker patented Voice Coil Drive (VCD®) to larger frame sizes and thus high flow rates. The high dynamics / high precision drive of the pilot valve allows the optimum control of the main spool and results in servo class performance of the complete valves.
The D*1FP series is available in 5 sizes:
D31FP NG10 (CETOP 05)
D41FP NG16 (CETOP 07)
D81FP NG25 (CETOP 08) for port diam. up to 26 mm
D91FP NG25 (CETOP 08) for port diam. up to 32 mm
D111FP NG32 (CETOP 10)

The safety concept works with a safe 4th position at the D1FP pilot valve. This ensures that the main stage is hydraulically balanced at power down and allows to have the main spool spring centered (for overlapped spools) or approximately 10 % spring offset to spool position A or B (for zerolap spools). The innovative integrated regenerative function into the A-line (optional) allows new energy saving circuits for differential cylinders. The hybrid version can be switched between regenerative mode and standard mode at any time.

Features:
- High dynamics
- High flow
- Defined spool positioning at power-down - optional P-A/B-T or P-B/A-T or center position (for overlapped spools)
- Onboard electronics
- Energy saving A-regeneration
- Switchable hybrid version

Description

Performance Characteristics
Nominal Size NG10
Size (CETOP Norm) CETOP 05
Operation Style Pilot
Electronics Onboard electronics
Maximum Flow Rate (lpm) 250
Pressure Differential [bar] 5
Mounting Styles Subplate mounting
Actuation VCD®-actuator
Weight (kg) 11.3
Series Type Proportional DC valve

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Contact Us


PARKER HANNIFIN GMBH


HYDRAULIC CONTROLS DIVISION EU

GUTENBERGSTRASSE 38

KAARST

GERMANY

41564


Ph:+49 (0) 2131 513 0


Fax:+49 (0) 2131 513 230