Rexroth Hydraulic Valve DBETE/R/DBEM/E Proportional Relief Valve Series Hydraulic Directional Pilot Operated Electromagnetic

Rexroth DBETE/R/DBEM/E Series Proportional Relief Valves: Hydraulic Directional Pilot-Operated Electromagnetic Valves

The Rexroth DBETE/R/DBEM/E Series represents a line of high-precision proportional relief valves designed for advanced hydraulic systems requiring accurate pressure control through electrical signals. These valves combine pilot-operated and electromagnetic technologies to deliver seamless, proportional pressure adjustment, making them ideal for industrial automation, mobile machinery, and precision engineering applications.

1. Proportional Electromagnetic Control: Utilizes proportional solenoids to translate electrical input signals (e.g., 0–10 V or 4–20 mA) into precise hydraulic pressure adjustments, enabling infinite variability in pressure settings.

2. Pilot-Operated Design: Features a pilot stage for sensitive pressure control and a main stage for high-flow handling, ensuring stable performance even under demanding conditions (e.g., pressures up to 420 bar for DBETE models).

3. Integrated Electronics (OBE): Select models (e.g., DBETE, DBEME) include onboard electronics (OBE) for simplified wiring, reduced external control dependencies, and low manufacturing tolerances in pressure-value characteristics.

4. High Flow Efficiency: DBEM pilot-operated valves support higher flow rates (e.g., 30 L/min), while direct-operated DBET/DBETE valves excel in precision low-flow applications (e.g., 2 L/min).

5. Robust Construction: Manufactured with hardened materials and options for FKM or NBR seals, ensuring compatibility with hydraulic oils and resilience in temperatures from -40°C to 120°C.

6. Flexible Installation: Available in subplate mounting (ISO 4401 compliant) or cartridge configurations, catering to diverse system integration needs.

• Industrial Machinery: Plastic injection molding, metal stamping presses, and CNC systems.

• Mobile Equipment: Excavators, loaders, and agricultural machinery.

• Energy and Automation: Test benches, hydraulic power units, and precision control systems.

• Pressure Range: Up to 420 bar (DBETE direct-operated) or 350 bar (DBEM pilot-operated).

• Voltage Supply: 24 VDC (standard for integrated OBE models).

• Port Sizes: Range from G1/8 to G1/2 (BSPP or SAE threads).

• Control Signals: Analog (0–10 V, 4–20 mA) or digital via external amplifiers.

These valves exemplify Rexroth’s engineering excellence, offering energy efficiency, minimal pressure overshoot, and long service life. Their modular design allows customization for specific applications, backed by global technical support and compliance with international standards (e.g., DIN 24340, ISO 4401).