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DBET-61/100YG24K4M Rexroth proportional relief valve direct acting made in Germany. This direct-operated proportional relief valve is designed for stepless precise pressure control in hydraulic systems.
Technical Specifiions
Parameter egory
Specifiion
Details / Notes
Basic Model Info
Type
Direct-operated proportional relief valve
Model Series
DBET
Specifiion Size
6
Hydraulic Performance
Max. Working Pressure
Up to 420 bar
Max. Flow Rate
Up to 2 l/min
Operational Medium
Oil
Electrical Characteristics
Power Supply
24 VDC
Control Signal
Proportional (e.g., 0-24V input signal to correspondingly adjust pressure)
Solenoid Type
Proportional solenoid with detachable coil
Design & Mounting
Connection Type
Internal thread
Mounting
Subplate mounting, hole pattern according to ISO 4401
Amplifier
Plug-in amplifier with modular design
Key Features
Adjustability
Independently adjustable upward and downward ramps; fine-tuning of pressure characteristic curve
Function
Limits system pressure remotely and proportionally
1. Q: What should I do if the system pressure cannot reach the set value?
A: First, check the electrical input signal and connections to ensure they are stable and within the specified range. Verify that the solenoid is receiving power and the control signal is correct. If the issue persists, inspect the valve spool for possible contamination or wear, and check for internal leakage due to damaged seals. Cleaning the valve or replacing worn components may be necessary.
2. Q: Why is there significant pressure fluctuation in the system?
A: Pressure fluctuations can be caused by several factors. Check for air in the hydraulic oil, which can cause cavitation. Ensure the oil is clean and the filters are not clogged. Also, verify that the flow rate does not exceed the valve's rated capacity. If the problem continues, inspect the damping orifices and the condition of the spring, as wear or fatigue can lead to instability.
3. Q: How can I reduce noise during operation?
A: Excessive noise is often due to cavitation (air in the oil) or flow exceeding the valve's capacity. Ensure the system is properly bled of air and that the flow rate is within specifiions. Check for loose connections or vibrations in the piping. If the noise persists, inspect the pilot valve and main spool for wear, as damaged components can cause irregular flow and noise.
4. Q: The valve fails to build any pressure. What could be the cause?
A: If no pressure is established, the main spool may be stuck in the open position, or the pilot damping orifice could be blocked. Check the electrical connections to the solenoid to ensure it is energized. Also, inspect the spring--if it is broken or missing, the valve cannot close properly. Cleaning the valve and verifying the solenoid function are essential first steps.
5. Q: The pressure response is slow or non-linear. How can I improve it?
A: Slow or non-linear response is typically related to contamination in the oil, which can cause the spool or solenoid to stick. Check the oil cleanliness and replace filters if necessary. Also, inspect the spool and valve body for wear or scoring. If the solenoid itself is degraded (increased hysteresis), it may need replacement. Ensure the control signal is stable and the amplifier settings are correct.
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...
