DREM 10-5X/315YG24K4M Rexroth Proportional Reducing Valve 315bar

Product Overview

The DREM 10-5X/315YG24K4M is a Bosch Rexroth pilot-operated proportional pressure reducing valve from the DRE/DREM series. It provides precise, continuous control of secondary pressure via a proportional solenoid, ideal for industrial hydraulic systems requiring accurate pressure regulation. The valve offers complete interchangeability with original Rexroth DRE, DREM, DREE, DREME, and related DBEME series components, allowing direct drop-in replacement without modifications to subplates or piping. Every unit is 100% tested under simulated operating conditions to ensure reliable performance at pressures up to 315 bar, making it the preferred choice for machine tools, injection molding machines, metallurgical equipment, and high-precision hydraulic circuits.

Technical Specifications 

• Model: DREM 10-5X/315YG24K4M (series includes DRE, DREM, DREE, DREME, DRE6X, DBEME)
• Type: Pilot-operated proportional pressure reducing valve (with optional maximum pressure limitation)
• Size: NG10
• Maximum operating pressure: 315 bar at ports A and B
• Pressure setting range: up to 315 bar (optional ratings 50/100/200/315 bar)
• Maximum flow: approx. 200 l/min (main valve, NG10)
• Actuation: Proportional solenoid (G24 = 24 V DC), external electronics or integrated electronics (OBE optional)
• Pilot oil return: External, depressurized to tank (port Y)
• Mounting: Subplate mounting according to ISO 5781
• Weight: approx. 4.7 kg (DREM NG10)
• Hydraulic fluid: Mineral oil-based (HL, HLP etc.), viscosity 15–380 mm²/s
• Temperature range: Fluid -20°C to +80°C; ambient -20°C to +70°C
• Cleanliness: ISO 4406 20/18/15

Key Technical Advantages

1. Precise pilot-operated proportional control: Proportional solenoid and pilot stage deliver a linear command value/pressure characteristic curve with low hysteresis and high repeatability for accurate pressure regulation.
2. High-pressure capability with safety features: Rated to 315 bar continuous operation; optional maximum pressure limitation (M version) protects the system against overpressure.
3. True interchangeability and modular compatibility: Exact match to original Rexroth mounting dimensions and port patterns, enabling direct replacement of DRE/DREM and related DBEME series valves.
4. Low leakage and fast response: Precision-machined spool and body with high-quality seals minimize internal leakage; step response typically 130–160 ms for improved system dynamics.
5. Flexible electronics options: Supports external amplifiers or integrated electronics (OBE); command signals 0–10 V or 4–20 mA for easy integration with PLC or closed-loop control systems.

Application Areas

• Machine tools and precision equipment: Accurate pressure control circuits
• Injection molding and die-casting machines: Clamping and injection pressure regulation
• Metallurgical and heavy industry: Rolling mills, presses, and related hydraulic systems
• Industrial hydraulics: Continuous proportional pressure reduction for actuators

Expert Maintenance Tips

1. Ensure subplate flatness and cleanliness meet ISO standards during installation; use hydraulic fluid of the recommended cleanliness class to protect the pilot stage.
2. Connect pilot return port Y separately and depressurized to tank (internal pipe Ø ≥ 5 mm, length < 2500 mm) to avoid back-pressure affecting set accuracy.
3. Match solenoid voltage correctly (24 V DC) and protect connectors against moisture; avoid over-current conditions.
4. Periodically monitor pressure setting accuracy and response time; inspect seals and spool for wear if hysteresis or leakage increases.
5. Perform low-load commissioning after installation to verify the command value/pressure curve linearity before full-load operation.