HD – DBEE and HD-(Z)DBEE – Proportional Directional Valve, Pilot Operated with Electrical position feedback

Achieve high-fidelity pressure regulation and automated safety with the HD DBEE and HD-(Z)DBEE Series. Available through THM Hydraulics, these pilot-operated proportional pressure relief valves are designed for systems that require precise, electrically controlled pressure limiting. Whether you need a standard sub-plate mounting (DBEE) or a space-saving vertical stacking sandwich design (ZDBEE), this series features integrated On-Board Electronics (OBE) for a simplified, "plug-and-play" experience. Capable of managing operating pressures up to 350 bar and flow rates up to 30 L/min, these valves offer the linear accuracy and repeatability essential for modern industrial automation.

Core Technical Specifications:-

Component Architecture: Pilot Operated Proportional Pressure Relief Valve
Model Types: HD-DBEE (Sub-plate) / HD-(Z)DBEE (Sandwich Plate)
Control Intelligence: Integrated Electronics (OBE - On-Board Electronics)
Maximum Operating Pressure: Up to 350 bar
Maximum Flow Capacity: Up to 30 L/min
Precision: Low example spread of the command value pressure characteristic curve
Feedback: Integrated electrical position feedback for enhanced stability

Key Features & Engineering Advantages:-

Integrated OBE Intelligence: The control electronics are mounted directly on the valve body. This eliminates the need for external amplifier cards, reduces wiring complexity, and ensures superior protection against electromagnetic interference.
Dual Mounting Flexibility: Choose the DBEE for traditional sub-plate manifold mounting or the ZDBEE sandwich plate design to stack the valve vertically within a Size 6 or Size 10 valve assembly, drastically reducing your system's footprint.
Programmable Pressure Ramps: Features independently adjustable "up" and "down" ramps. This allows you to electronically control how fast the pressure builds or bleeds off, preventing hydraulic shock and protecting sensitive system components.
High Characteristic Curve Accuracy: Engineered for a low spread in the command-to-pressure characteristic curve, ensuring that your software's pressure commands result in consistent, predictable hydraulic forces every time.
Unified Control Source: Both the high-performance valve and the integrated proportional electronics are sourced from a single supplier, guaranteeing perfect factory calibration and simplified troubleshooting.
Dynamic Position Feedback: The integrated position transducer monitors the pilot stage in real-time, correcting for flow disturbances and maintaining a rock-solid pressure limit even as system temperatures fluctuate.

Ideal Industry Applications:-

The integrated electronics and 350 bar endurance make the HD DBEE Series the premier choice for:

Precision Machine Tooling: Governing the variable clamping forces required for CNC machining where different materials demand specific, repeatable holding pressures.
Injection Molding & Plastics: Precisely controlling the pilot pressure for larger valves or managing the holding pressure phases in compact molding machines.
Automated Test Benches: Enabling engineers to program complex, high-accuracy pressure profiles for durability testing and sensor calibration.
Compact Power Units (HPUs): Utilizing the sandwich (Z) design to fit high-performance proportional control into tight spaces on mobile equipment or small industrial skids.

Why Choose the HD DBEE / (Z)DBEE Series?

"Plug-and-Play" Command: Skip the complex cabinet wiring. With integrated electronics, you can connect your PLC signal directly to the valve and begin operation immediately with factory-calibrated accuracy.
Eliminate System Vibration: The adjustable ramps and pilot-operated design ensure that pressure transitions are smooth and silent, extending the life of your pumps, seals, and fittings.
Save Manifold Space: The (Z)DBEE sandwich version allows you to add proportional pressure control to your existing valve stacks without needing to redesign the entire manifold block.