DBETBEX-1X/80G24k31A1M Rexroth German made proportional relief valve pilot operated

The DBETBEX-1X/80G24K31A1M is a proportional pressure relief valve with integrated electronics (OBE). Its main function is to remotely control and limit system pressure in hydraulic circuits. It allows for infinitely variable pressure setting through an electrical command signal (0-10 V), providing precise pressure regulation to protect system components and optimize performance.

Key specifications include:

• Maximum Operating Pressure: 315 bar at port P
• Pressure Setting: 80 bar (as indicated by "80G" in model code)
• Nominal Flow Rate: 1 L/min
• Power Supply: 24 V DC
• Control Signal: 0-10 V (A1 interface)
• Electrical Connection: M12 connector (K31 code)
• Mounting Interface: ISO 4401-03-02-0-05 (NG6 size)
• Operating Temperature: -20°C to +80°C
• Response Time: < 80 ms

The integrated electronics (OBE) provide several advantages:

• Reduced External Components: No need for a separate amplifier card, simplifying system design
• Improved Performance: Factory-calibrated command/pressure characteristics with low tolerances
• Ease of Installation: Direct connection to power and command signals
• Compact Design: Space-saving integration within the valve housing

The valve is designed for use with:

• Mineral-based hydraulic oils (ISO VG 15-68)
• Standard seal material is NBR (suitable for mineral oils)
• Viscosity Range: 20-380 mm²/s (preferably 30-46 mm²/s at operating temperature)
• Fluid Cleanliness: Maximum ISO 4406 class 20/18/15 recommended

For optimal performance:

• Mounting: Use subplate mounting according to ISO 4401 standard
• Installation Position: Can be mounted in any orientation
• System Cleanliness: Ensure hydraulic system meets recommended cleanliness levels
• Electrical Connection: Use proper M12 connector (K31 type) with correct pin assignment
• Maintenance: Regular monitoring of system pressure and fluid condition
• Response Time: < 80 ms for pressure adjustment