EFBG Series Pressure Flow Proportional Valve EFBG-03-160-C EDG-01V-H-PNT13-61T+EFBG-03-160-H-21T233-L
| Model Number | EFBG-03-160-C |
|---|
Product Description
EFBG Series Pressure Flow Proportional Valve EFBG-03-160-C EDG-01V-H-PNT13-61T+EFBG-03-160-H-21T233-L Hydraulic Valve
Model description
EFBG: Represents the series number of electro-hydraulic proportional overflow flow control valve.
03: Indicates the nominal size (10 diameter).
125: It indicates that the maximum adjustable flow rate is 125L/min.
Main parameters
Maximum operating pressure: 25MPa (i.e. 250kgf/cm²).
Maximum flow rate: 125L/min.
Flow adjustment range: 1 to 125L/min.
Flow control
Rated current: 680mA.
Coil resistance: 43.5Ω.
Pressure difference: 0.6MPa.
Hysteresis: less than 7%.
Repeatability accuracy: 1%.
Pressure control
Pressure regulation range: 1.4 to 14MPa for Type C, 1.4 to 21MPa for Type H.
Rated current: 710mA for Type C, 770mA for Type H.
Coil resistance: 10Ω.
Hysteresis: less than 3%.
Repeatability accuracy: 1%.
Usage method
Installation environment
Ensure that the installation environment meets the product requirements and avoid using it in damp, corrosive gas or high-temperature environments.
Installation steps
Before installation, check whether the valves and accessories are in good condition to ensure there is no damage or missing parts.
Install according to the installation steps in the product manual, paying attention to the flow direction and installation position of the valve.
First use:
When used for the first time, it is necessary to vent on the pressure coil and flow coil to ensure normal operation.
03: Indicates the nominal size (10 diameter).
125: It indicates that the maximum adjustable flow rate is 125L/min.
Main parameters
Maximum operating pressure: 25MPa (i.e. 250kgf/cm²).
Maximum flow rate: 125L/min.
Flow adjustment range: 1 to 125L/min.
Flow control
Rated current: 680mA.
Coil resistance: 43.5Ω.
Pressure difference: 0.6MPa.
Hysteresis: less than 7%.
Repeatability accuracy: 1%.
Pressure control
Pressure regulation range: 1.4 to 14MPa for Type C, 1.4 to 21MPa for Type H.
Rated current: 710mA for Type C, 770mA for Type H.
Coil resistance: 10Ω.
Hysteresis: less than 3%.
Repeatability accuracy: 1%.
Usage method
Installation environment
Ensure that the installation environment meets the product requirements and avoid using it in damp, corrosive gas or high-temperature environments.
Installation steps
Before installation, check whether the valves and accessories are in good condition to ensure there is no damage or missing parts.
Install according to the installation steps in the product manual, paying attention to the flow direction and installation position of the valve.
First use:
When used for the first time, it is necessary to vent on the pressure coil and flow coil to ensure normal operation.
The common core features of the EFBG series valves include:
The common core features of the EFBG series valves include:
Pilot-operated structure: It allows for easy and smooth pressure regulation under high pressure and has remote control capability.
Pressure stability: The balanced design of the main valve core minimizes the impact of system pressure fluctuations.
Diverse functions: It can be used as a safety valve or relief valve, and remote pressure regulation and system unloading can be achieved through a remote control port.
Durable and sturdy: Complies with Rexroth’s strict industrial standards.
Pilot-operated structure: It allows for easy and smooth pressure regulation under high pressure and has remote control capability.
Pressure stability: The balanced design of the main valve core minimizes the impact of system pressure fluctuations.
Diverse functions: It can be used as a safety valve or relief valve, and remote pressure regulation and system unloading can be achieved through a remote control port.
Durable and sturdy: Complies with Rexroth’s strict industrial standards.
EFBG-03-160-C can be disassembled as:
EFB: This is the series code for the valve, representing pilot-operated relief valve.
G: Indicates tubular connection.
03: Represents the diameter specification, corresponding to the 3/4″ (approximately DN19) interface.
160: It represents the maximum set pressure, which is 160 Bar (approximately 16 MPa) here.
C: Represents the type and function of the valve core. Here, it usually refers to a conical valve core with a hard seal, featuring low internal leakage and fast response.
EFBG-03-160-C has the following notable features:
Pilot-operated structure, high pressure and large flow rate
High-pressure capacity:
Pilot-operated structure, high pressure and large flow rate
High-pressure capacity:
The maximum set pressure can reach up to 160 Bar, making it suitable for medium and high-pressure hydraulic systems.
Large flow diameter: The 03 diameter enables it to handle relatively large flow rates, meeting the safety overflow requirements of the main oil circuit system.
Pilot control:
Large flow diameter: The 03 diameter enables it to handle relatively large flow rates, meeting the safety overflow requirements of the main oil circuit system.
Pilot control:
The pilot stage is used to control the opening of the main valve core, which makes the required operating force small when regulating pressure under high pressure, and the pressure regulation is light and stable.
2. Excellent pressure stability
Due to the pilot-operated structure, the main valve core adopts a pressure-balanced design, so the impact of system pressure fluctuations on the set pressure is relatively small. Even when the flow rate changes, it can maintain a relatively stable pressure and the system operates smoothly.
3. Rapid dynamic response
It adopts a conical valve core structure (indicated by the suffix “C” of the model), and when closed, it is a line seal with small inertia. When the system pressure surges instantaneously, the valve can quickly open to overflow and relieve the pressure. When the pressure drops, it can be quickly shut down, reducing pressure overshoot and instability. This is very important for systems that require rapid pressure relief or are sensitive to pressure shocks.
4. Low leakage and small internal leakage
The sealing performance of the cone valve core in the closed state is very good, and the internal leakage is extremely low. This helps to improve system efficiency and reduce energy loss (oil heating).
5. Durable and highly reliable
As an industrial product of Rexroth, its design and manufacturing standards are very high. The valve body and internal parts are made of high-quality materials, featuring strong anti-pollution capabilities and a long service life, making it suitable for operation in harsh industrial environments.
6. Standard tubular connection
G-type pipe connection is a very common connection method in hydraulic systems, which is convenient to install and has strong versatility.
Main functions
As a relief valve, it has three core functions:
Safety valve (overload protection) : Normally closed in the system. When the system pressure exceeds the set value of the valve, the valve opens to drain the excess oil back to the oil tank, preventing the hydraulic components from being damaged due to excessive system pressure. This is its most fundamental and important function.
Relief valve (constant pressure and pressure stabilizing) : In a quantitative pump system, it is used in conjunction with components such as throttle valves to normally overflow and maintain a constant pressure at the pump outlet.
Remote pressure regulation/unloading: Generally, this pilot-operated relief valve is equipped with a remote control port (at the top of the valve). Through this external oil port, the following can be achieved:
Remote pressure regulation: By connecting a low-power remote pressure regulating valve, pressure regulation can be carried out from a position far away from the main valve.
System unloading: By connecting the remote control port to the oil tank through a reversing valve, the main valve core can be fully opened, allowing the pump to operate under nearly zero pressure, achieving system unloading and saving energy consumption.
Application field
EFBG-03-160-C is widely used in various industrial hydraulic equipment that require pressure control and overload protection, such as:
Injection molding machines, hydraulic presses, construction machinery (such as excavators and cranes), machine tools, die-casting machines
2. Excellent pressure stability
Due to the pilot-operated structure, the main valve core adopts a pressure-balanced design, so the impact of system pressure fluctuations on the set pressure is relatively small. Even when the flow rate changes, it can maintain a relatively stable pressure and the system operates smoothly.
3. Rapid dynamic response
It adopts a conical valve core structure (indicated by the suffix “C” of the model), and when closed, it is a line seal with small inertia. When the system pressure surges instantaneously, the valve can quickly open to overflow and relieve the pressure. When the pressure drops, it can be quickly shut down, reducing pressure overshoot and instability. This is very important for systems that require rapid pressure relief or are sensitive to pressure shocks.
4. Low leakage and small internal leakage
The sealing performance of the cone valve core in the closed state is very good, and the internal leakage is extremely low. This helps to improve system efficiency and reduce energy loss (oil heating).
5. Durable and highly reliable
As an industrial product of Rexroth, its design and manufacturing standards are very high. The valve body and internal parts are made of high-quality materials, featuring strong anti-pollution capabilities and a long service life, making it suitable for operation in harsh industrial environments.
6. Standard tubular connection
G-type pipe connection is a very common connection method in hydraulic systems, which is convenient to install and has strong versatility.
Main functions
As a relief valve, it has three core functions:
Safety valve (overload protection) : Normally closed in the system. When the system pressure exceeds the set value of the valve, the valve opens to drain the excess oil back to the oil tank, preventing the hydraulic components from being damaged due to excessive system pressure. This is its most fundamental and important function.
Relief valve (constant pressure and pressure stabilizing) : In a quantitative pump system, it is used in conjunction with components such as throttle valves to normally overflow and maintain a constant pressure at the pump outlet.
Remote pressure regulation/unloading: Generally, this pilot-operated relief valve is equipped with a remote control port (at the top of the valve). Through this external oil port, the following can be achieved:
Remote pressure regulation: By connecting a low-power remote pressure regulating valve, pressure regulation can be carried out from a position far away from the main valve.
System unloading: By connecting the remote control port to the oil tank through a reversing valve, the main valve core can be fully opened, allowing the pump to operate under nearly zero pressure, achieving system unloading and saving energy consumption.
Application field
EFBG-03-160-C is widely used in various industrial hydraulic equipment that require pressure control and overload protection, such as:
Injection molding machines, hydraulic presses, construction machinery (such as excavators and cranes), machine tools, die-casting machines
Summary
EFBG-03-160-C is a pilot-operated relief valve with reliable performance, high pressure rating, rapid response and good sealing. Its maximum pressure of 160 Bar and bore diameter of 0.3 make it an ideal choice for the main safety valve of many medium and high-pressure hydraulic systems. Its conical valve core design offers the advantages of rapid dynamic response and low leakage, while the pilot structure ensures the stability of pressure control and the possibility of remote control.
EFBG-03-160-C is a pilot-operated relief valve with reliable performance, high pressure rating, rapid response and good sealing. Its maximum pressure of 160 Bar and bore diameter of 0.3 make it an ideal choice for the main safety valve of many medium and high-pressure hydraulic systems. Its conical valve core design offers the advantages of rapid dynamic response and low leakage, while the pilot structure ensures the stability of pressure control and the possibility of remote control.
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