HD – DBE/DBEM – Proportional pressure relief valve
Bring dynamic, high-precision pressure management to your automated hydraulic systems with the HD DBE/DBEM Series. Available through Thm Hydraulics, these proportional pressure relief valves allow you to infinitely adjust system pressure limits in direct relation to an electrical command signal. Whether you require standard proportional relief (DBE) or the added safety of a manual maximum pressure adjustment (DBEM), this series is engineered to handle massive industrial loads. Capable of managing operating pressures up to 315 bar and high-volume flow rates up to 600 L/min, the DBE/DBEM series bridges the gap between raw fluid power and sophisticated electronic control.
Core Technical Specifications:-
- Component Architecture: Pilot Operated Proportional Pressure Relief Valve
- Model Type: HD-DBE (Proportional) / HD-DBEM (With Manual Max Pressure Protection)
- Maximum Operating Pressure: Up to 315 bar
- Maximum Flow Capacity: Up to 600 L/min
- Repeatability Precision: < ±2%
- Recommended Electronic Control: VT-2000S 40 (Amplifier)
- Mounting Styles: Sub-plate mounting and Manifold mounting
Key Features & Engineering Advantages:-
- Infinitely Variable Control: Unlike standard relief valves with a fixed mechanical setting, the DBE series allows your PLC or control system to change the relief pressure on-the-fly via electrical command values. This is essential for machines that process different materials or require varying force stages.
- DBEM Integrated Safety: The DBEM model includes a manual "maximum pressure" screw. This acts as a secondary mechanical failsafe, ensuring that even if an electronic signal error occurs, the system pressure can never exceed a safe, manually set limit.
- High-Precision Repeatability: With a repeatability precision of less than ±2%, you can count on consistent hydraulic performance cycle after cycle, shift after shift.
- Optimized Response (Buffeting Control): Features calibrated delay components (1.5 with buffeting / 4.5 without buffeting) to ensure smooth pressure transitions, preventing the "chatter" and hydraulic shock that can plague high-flow systems.
- Unified Control Solutions: For seamless commissioning and optimal performance, both the proportional valve and the matched electronic amplifier (VT-2000S) are sourced from a single supplier, ensuring perfect signal-to-pressure calibration.
- Massive Flow Venting: Engineered to safely and smoothly bypass up to 600 liters of fluid per minute, making it the ideal master relief valve for high-power industrial installations.
Ideal Industry Applications:-
The programmable pressure control and 600 L/min capacity make the HD DBE/DBEM Series the premier choice for:
- Advanced Industrial Presses: Modulating the pressing force in real-time based on material thickness or sensor feedback during metal forming and stamping.
- Injection Molding & Plastics: Precisely controlling the "holding pressure" phase of the molding cycle to ensure consistent part quality and density.
- Steel & Paper Mills: Managing the variable tension requirements on heavy-duty rollers and winding equipment.
- Hydraulic Test Benches: Enabling engineers to program complex pressure ramp-up and ramp-down test profiles for component durability verification.
Why Choose the HD DBE/DBEM Series?
- Digital Command over Fluid Power: Stop making manual adjustments every time your production needs change. This valve puts the hydraulic pressure controls directly into your software.
- Protect Your Investment: The DBEM model provides the ultimate "belt and braces" safety approach—electronic flexibility combined with a hard mechanical pressure limit.
- Eliminate System Shock: The advanced damping components ensure that even when shifting between high and low pressures at 600 L/min, your system remains quiet, stable, and vibration-free.
