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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 Specifiions
Electrical Characteristics
Parameter
Specifiion
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
Specifiion
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 Specifiions
Parameter
Specifiion
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 appliions
Pressure resolution: approximately 0.28 bar per volt (0-10V control)
Recommended for systems requiring fine pressure control below 30 bar
Typical Appliions:
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 appliions
Pressure resolution: approximately 0.8 bar per volt (0-10V control)
Enhanced dynamic performance compared to standard current models
Typical Appliions:
Machine tool hydraulic systems
Material handling equipment
Small hydraulic presses
Automation systems requiring medium pressure control
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 appliions, while the DBETBX-1X/80G24-37Z4M2 offers 0-80 bar for medium-pressure industrial appliions. 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 indies a specific manufacturing variant, coil configuration, or regional specifiion that differs from the standard "M" designation. This could relate to minor differences in coil winding, connector type, or certifiion requirements. Both configurations maintain the same 37Z4M electrical characteristics (3.7A max current) and are functionally equivalent for most appliions. 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 appliions 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 appliions, 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 appliions, 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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Total Annual:
1 million-10 millon
Employee Number:
>50
Ecer Certification：
Verified Supplier
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...
