| General Info | Product Series | Parker D31FPE Series (High-Performance Proportional Directional Control Valve) |
| Full Part Number | D31FPE52CA1NS7050 | |
| Size & Mounting | Nominal Size | NG10 (ISO 4401-05 / CETOP 5 / NFPA D05) |
| Mounting Pattern | Subplate mounting (requires NG10 interface) | |
| Hydraulic Performance | Valve Type | Pilot-operated proportional directional valve |
| Spool Type | Type E (Specific spool design with optimized overlap characteristics) | |
| Rated Flow | Approx. 160 L/min (at valve pressure drop Δp = 10 bar) | |
| Max. Operating Pressure | Ports P, A, B: 350 bar; Port T: 250 bar | |
| Pilot Pressure | Minimum 12 bar (required for proper pilot operation) | |
| Electrical Characteristics | Control Type | Integrated Digital On-Board Electronics (OBE) |
| Supply Voltage | 24 VDC (typically ±15% tolerance) | |
| Command Signal | ±10V (Analog voltage input) | |
| Electrical Connector | Standard industrial plug (Check pinout on nameplate) | |
| Material & Environment | Seal Material | NBR (Nitrile Rubber) (Standard for mineral oils) |
| Operating Temperature | -20°C to +50°C (Standard NBR range) | |
| Fluid Viscosity Range | Recommended 10 ~ 380 mm²/s (cSt) | |
| Special Features | Pilot Stage | High-response pilot valve with LVDT position feedback |
| Main Stage | Main spool with LVDT position feedback for closed-loop control | |
| Spool Position Monitoring | Available (Center position monitoring option) | |
| Special Notes | Custom Code (7050) | Specific Modification Number. May involve special zero-point settings, ramp times, specific flow curves, or proprietary test reports. |
D31FPE52CA1NS70 Parker Proportional Valve
- About the Flow (Code 52): In the Parker D31FPE series, the number
52indicates a specific flow rating. Based on the NG10 size and pilot-operated design, this valve is capable of handling flows up to approximately 160 L/min (at Δp = 10 bar). This makes it suitable for medium-to-large industrial applications such as injection molding machines, presses, and machine tools. - About the Spool (Code E): The
Espool type typically features optimized overlap characteristics for precise null control. This is critical for applications requiring zero steady-state error in closed-loop position or force control. - About the Seals (Code N): This valve uses NBR (Nitrile) seals, which are suitable for standard mineral-based hydraulic oils. If your system uses fire-resistant fluids or operates at high temperatures, you may need a valve with FKM (Viton) seals.
- About the Custom Code (7050): The
7050suffix indicates a factory-specific modification. This could involve special tuning of the PID parameters, specific ramp times, or unique flow characteristics tailored to a particular machine or application.- Replacement Advice: Do not replace it with a standard D31FPE valve without the
7050suffix. The internal digital electronics and tuning parameters may not match your system, potentially causing instability, poor performance, or machine faults.
- Replacement Advice: Do not replace it with a standard D31FPE valve without the
For the absolute most accurate data, always refer to the metal nameplate on the valve body or contact Parker Hannifin support with the valve’s Serial Number to retrieve the original factory test sheet and configuration data.
Original price was: $4,457.00.$2,667.00Current price is: $2,667.00.
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