D41FHE01E1NB00 Parker Proportional Directional Valve NG16

Product Overview

The Parker D41FH series proportional directional control valve (typical models D41FHE01E1NB00 and D41FHE01E1NE00) is a high-performance pilot-operated proportional directional valve with main spool position feedback and onboard electronics (OBE). Size NG16 (CETOP 07), maximum operating pressure 350 bar, offering high dynamic response and very low hysteresis. The pilot stage precisely controls the main spool position for accurate flow and direction regulation. Fully compliant with ISO 4401 mounting patterns and highly interchangeable with original Parker D*1FH valves. Every unit undergoes rigorous simulated duty-cycle testing for reliable performance in demanding industrial and mobile hydraulic systems.

Technical Specifications 

• Model: D41FHE01E1NB00 / D41FHE01E1NE00 (D41FH series)
• Size: NG16 (CETOP 07 / ISO 4401)
• Type: Pilot-operated proportional directional control valve with spool position feedback and integrated electronics
• Maximum Operating Pressure: Ports P, A, B 350 bar (approx. 345–350 bar)
• Rated Flow (at Δp = 10 bar): Up to approx. 240 L/min (spool option dependent)
• Maximum Flow: Up to approx. 420 L/min
• Hysteresis: <0.5%
• Repeatability: <0.5%
• Step Response (to 90% of 100% command): Approx. 45 ms
• Supply Voltage: 18–30 V DC
• Command Signal: ±10 V or ±20 mA (ordering code dependent)
• Weight: Approx. 11.6 kg
• Continuous Pilot Flow: <1.2 L/min

Key Technical Advantages

1. Closed-loop spool position feedback: Main spool equipped with position sensor and OBE electronics for high-precision closed-loop control, with hysteresis and repeatability both below 0.5%.
2. High dynamic response: Pilot-operated design with optimized pilot circuit delivers step response of approximately 45 ms, ideal for fast positioning and precise speed control.
3. 100% drop-in interchangeability: Standard ISO 4401-07 subplate mounting interface is fully compatible with original Parker D41FH valves — no plumbing or electrical modifications required.
4. Robust high-pressure construction: Rated to 350 bar, precision-machined spool and body combined with quality seals and 100% duty-cycle testing ensure long-term reliability.

Application Areas:

• Injection molding and die-casting machines requiring precise directional and flow control
• Machine tools, presses and industrial automation hydraulic systems
• Mobile equipment and construction machinery high-performance proportional circuits
• Test stands and specialty systems demanding high dynamic response and accurate positioning

Expert Maintenance Tips

Verify subplate flatness and O-ring condition before installation; maintain fluid cleanliness at ISO 4406 18/16/13 or better. Keep pilot pressure within 20–350 bar for optimal dynamics. Use the matching 7-pin connector with proper shielding and select command signal (voltage or current) according to the ordering code. Periodically check spool position feedback signal and leakage; avoid excessive pressure at ports T or Y. Prefer identical spool code and electronics interface for replacement to preserve control characteristics. Perform system bleeding and functional testing after service.