REXROTH DBETBX-1X Proportional Relief Valves
Product Codes: 0811402013 DBETBX-1X/28G24-37Z4M | 0811402007 DBETBX-1X/80G24-37Z4M2
Product Overview
The DBETBX-1X series proportional relief valves are direct-operated pilot valves with integrated position feedback, designed for precise pressure control in industrial hydraulic systems. These valves offer accurate pressure regulation, fast response characteristics, and reliable system protection.
Model Comparison
| Parameter |
DBETBX-1X/28G24-37Z4M (0811402013) |
DBETBX-1X/80G24-37Z4M2 (0811402007) |
| Maximum Working Pressure (P Port) |
315 bar |
315 bar |
| Maximum Working Pressure (T Port) |
28 bar |
80 bar |
| Pressure Setting Range |
0-28 bar |
0-80 bar |
| Nominal Flow Rate (Qn) |
1.0 L/min |
1.0 L/min |
| Power Supply |
24 V DC (±10%) |
24 V DC (±10%) |
| Solenoid Configuration |
37Z4M |
37Z4M |
| Maximum Solenoid Current |
3.7 A |
3.7 A |
| Power Consumption |
40 W max |
40 W max |
| Control Signal |
0-10 V DC or 4-20 mA |
0-10 V DC or 4-20 mA |
| Position Feedback Signal |
0-10 V DC |
0-10 V DC |
| Response Time (0-100%) |
<30 ms |
<30 ms |
| Pressure Regulation Accuracy |
±1% of full scale |
±1% of full scale |
| Hysteresis |
<0.3% |
<0.3% |
| Repeatability |
<0.2% |
<0.2% |
Technical Specifications
Electrical Characteristics
| Parameter |
Specification |
| Supply Voltage |
24 V DC (±10%) |
| Control Signal Input |
0-10 V DC or 4-20 mA (configurable) |
| Position Feedback Output |
0-10 V DC (proportional to spool position) |
| Electrical Connection |
DIN 43650-AM2 standard plug |
| Protection Class |
IP65 (when properly installed) |
| Insulation Resistance |
>100 MΩ (500 V DC) |
| Dielectric Strength |
1500 V AC for 1 minute |
Hydraulic Performance
| Parameter |
Specification |
| Port Size |
NG6 (6 mm) |
| Port Configuration |
P (pressure), T (tank) |
| Mounting Interface |
ISO 4401-03-02-0-94 standard |
| Internal Leakage |
<0.1 L/min at rated pressure |
| Pressure Overshoot |
<5% of set pressure |
| Pressure Drop at Qn |
<2 bar |
| Cracking Pressure |
<5% of set pressure |
Mechanical & Environmental Specifications
| Parameter |
Specification |
| Dimensions (L × W × H) |
80 mm × 60 mm × 120 mm |
| Weight |
1.7 kg ±0.1 kg |
| Seal Material |
FKM (fluorocarbon rubber) standard |
| Operating Temperature |
-20°C to +70°C |
| Storage Temperature |
-40°C to +85°C |
| Fluid Temperature Range |
-20°C to +80°C |
| Fluid Compatibility |
Mineral oils (HL, HLP), biodegradable fluids (HETG, HEES) |
| Vibration Resistance |
5-500 Hz, 2G |
| Shock Resistance |
15G, 11 ms |
| Protection Class |
IP65 |
Model-Specific Information
DBETBX-1X/28G24-37Z4M (0811402013)
Key Features:
- Low pressure setting range (0-28 bar)
- High current solenoid (37Z4M) for fast response
- Ideal for precision low-pressure applications
- Pressure resolution: approximately 0.28 bar per volt (0-10V control)
- Recommended for systems requiring fine pressure control below 30 bar
Typical Applications:
- Laboratory test equipment
- Low-pressure injection systems
- Precision force control systems
- Research and development setups
DBETBX-1X/80G24-37Z4M2 (0811402007)
Key Features:
- Medium pressure setting range (0-80 bar)
- 37Z4M high-current solenoid configuration
- Suitable for general industrial applications
- Pressure resolution: approximately 0.8 bar per volt (0-10V control)
- Enhanced dynamic performance compared to standard current models
Typical Applications:
- Machine tool hydraulic systems
- Material handling equipment
- Small hydraulic presses
- Automation systems requiring medium pressure control
Related Product Series
DBETBX-1X/25G24-16Z4M-37
DBETBX-1X/28G24-37Z4M
DBETBX-1X/315G24-16Z4M
DBETBX-1X/315G24-25Z4M
DBETBX-1X/315G24-37Z4M
DBETBX-1X/315G24-37Z4M-38
DBETBX-1X/80G24-16Z4M-37
DBETBX-1X/80G24-37Z4M-38
DBETX-1X/315G24-8NZ4M
DBETX-1X/250G24-8NZ4M
DBETBX-10/180G24-16Z4M
DBETBX-10/180G24-16Z4M-41
DBETBX-10/180G24-37Z4M
DBETBX-10/180G24-37Z4MPU1
DBETBX-10/230G24-16Z4M-37
DBETBX-10/250G24-37Z4M-38
DBETBX-10/25G24-16Z4M-37
DBETBX-10/28G24-37Z4M
DBETBX-10/315G24-16Z4M
DBETBX-10/315G24-25Z4M
DBETBX-10/315G24-37Z4M-38
DBETBX-10/80G24-16Z4M-37
DBETBX-10/80G24-37Z4M-38
DBETX-10/315G24-8NZ4M
DBETX-10/250G24-8NZ4M
DBETBEX-1X/180G24K31A1M
DBETBEX-1X/180G24K31A1V
DBETBEX-1X/180G24K31F1M
DBETBEX-1X/180G24K31F1V
DBETBEX-1X/250G24K31A1M
DBETBEX-1X/250G24K31A1M-42
DBETBEX-1X/250G24K31A1V
DBETBEX-1X/250G24K31F1M
DBETBEX-1X/30G24K31A1M
DBETBEX-1X/315G24K0B5M
DBETBEX-1X/315G24K31A1M
DBETBEX-1X/315G24K31F1M
DBETBEX-1X/315G24K31F1V
DBETBEX-1X/80G24K31A1M
DBETBEX-1X/80G24K31F1M
DBETBEX-1X/80G24K31F1V
DBE6X-1X/315G24-8NZ4M
DBET-6X/100G24-8K4V
DBET-6X/100G24K4M
DBET-6X/100G24K4V
DBET-6X/100YG24-8K4V
DBET-6X/100YG24-8K4V-7
DBET-6X/100YG24K4M
DBET-6X/100YG24K4V
DBET-6X/200G24-8K4V
DBET-6X/200G24K4M
DBET-6X/200G24K4V
DBET-6X/200G24K4V=LB
DBET-6X/200YG24-8K4V
DBET-6X/200YG24-8K4V-7
DBET-6X/200YG24K4M
DBET-6X/200YG24K4V
DBET-6X/250G24K4M
DBET-6X/250YG24K4M
DBET-6X/315G24-8K4M
DBET-6X/315G24-8K4V
DBET-6X/315G24K4M
DBET-6X/315G24K4V
DBET-6X/315G24K4V=DE
DBET-6X/315G24K4V=LB
DBET-6X/315YG24-8K4M
DBET-6X/315YG24-8K4V
DBET-6X/315YG24-8K4V-7
DBET-6X/315YG24K4M
DBET-6X/315YG24K4V
DBET-6X/350G24K4VRD29162
DBET-6X/350G24-8K4M
DBET-6X/350G24-8K4V
DBET-6X/350G24K4M
DBET-6X/350G24K4V
DBET-6X/350YG24-8K4M
DBET-6X/350YG24-8K4V
DBET-6X/350YG24-8K4V-7
DBET-6X/350YG24K4M
DBET-6X/350YG24K4V
DBET-6X/420G24-8K4V
DBET-6X/420G24K4V
DBET-6X/420YG24K4V
DBET-6X/50G24-8K4M-6
DBET-6X/50G24-8K4V
DBET-6X/50G24K4V
DBET-6X/50YG24-8K4M
DBET-6X/50YG24-8K4V-7
DBET-6X/50YG24K4V
DBET-6X=350G24K4V
Frequently Asked Questions
Q1: What is the main difference between the 28G24 and 80G24 models?
A: The primary difference is the pressure setting range. The DBETBX-1X/28G24-37Z4M has a 0-28 bar range, making it suitable for low-pressure precision applications, while the DBETBX-1X/80G24-37Z4M2 offers 0-80 bar for medium-pressure industrial applications. Both models share identical mechanical dimensions, electrical interfaces, and 37Z4M solenoid configuration, but are calibrated for different pressure ranges to match specific system requirements.
Q2: Why does the 80G24 model have "M2" suffix while the 28G24 has "M"?
A: The "M2" suffix typically indicates a specific manufacturing variant, coil configuration, or regional specification that differs from the standard "M" designation. This could relate to minor differences in coil winding, connector type, or certification requirements. Both configurations maintain the same 37Z4M electrical characteristics (3.7A max current) and are functionally equivalent for most applications. For exact differences, please consult the manufacturer's technical documentation.
Q3: What is the advantage of the 37Z4M high-current solenoid configuration?
A: The 37Z4M configuration (3.7A max current) provides significantly higher electromagnetic force compared to standard 8NZ4M (0.8A) or 25NZ4M (2.5A) solenoids. This results in faster response times (<30 ms), better dynamic performance in high-viscosity fluids, and improved resistance to contamination. The trade-off is higher power consumption (40W max) and the need for compatible control electronics.
Q4: Do these valves require external electronics for operation?
A: Yes, both models require an external proportional amplifier or controller. The valve contains the solenoid and position feedback sensor but does not include internal control electronics. The external amplifier provides the 24V DC power supply, processes the control signal (0-10V or 4-20mA), and handles the position feedback signal for closed-loop control if required. The amplifier must be capable of delivering up to 3.7A current.
Q5: Can I use the 80G24 model for applications that only require 40 bar?
A: Yes, but it is not recommended for optimal performance. While technically possible, operating at significantly lower than the maximum pressure setting reduces pressure resolution and control accuracy. The 80G24 model has a resolution of approximately 0.8 bar per volt, while using a model closer to your operating pressure would provide better precision. For 40 bar applications, consider a model with a 50-60 bar range if available.
Q6: What is the purpose of the position feedback signal?
A: The integrated position sensor provides a 0-10V DC signal proportional to the valve spool position. This feedback enables closed-loop control applications, allowing the control system to verify that the valve is responding correctly to the command signal. It can be used for system monitoring, fault detection (such as spool sticking or solenoid failure), and diagnostic purposes, improving system reliability and maintenance efficiency.
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