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Electro-Proportional Valve

Electro-Proportional Valve

An electro-proportional valve, also known as an electronically controlled hydraulic proportional valve or simply an EPV, is a type of hydraulic cartridge that uses electrical signals to control fluid flow rate or pressure. It operates based on the principle of proportional control, where the valve's position is adjusted proportionally to the input signal received.

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Electro-Proportional Valves For Sale

What Is Electro Proportional Valve?

What Is Electro Proportional Valve?

An electronically controlled hydraulic proportional valves, sometimes called an electro-proportional control valve, uses an electrical signal to control and regulate the flow rate or pressure of a fluid in a hydraulic or pneumatic system. The valve's position or opening is directly proportional to the electrical input signal received, and it operates on the proportionality principle. Electro proportional valves are designed to provide precise and accurate control over fluid flow or pressure, allowing for fine-tuning and dynamic adjustment in various applications. They are commonly used in industrial automation, robotics, machine tools, material handling equipment, and other systems where precise control and responsiveness are required. The electrical signal can be generated by a control system or a proportional control device, enabling proportional control of the valve's position or flow rate based on the desired setpoint or feedback signals.

Electronically Controlled Proportional Valves Advantages

Electronically Controlled Proportional Valves Advantages

INNO electronically controlled proportional valves offer numerous advantages. Designed with advanced technology, these valves combine precision control with efficient performance. Some key features of these electro proportional valves include high accuracy, fast response times, and compact size.


INNO electronically controlled proportional valves are known for their exceptional control capabilities. With precise control over flow rates and pressure, these electro proportional valves ensure optimal performance in a wide range of applications. Their fast response times allow for quick and precise adjustments, enabling operators to maintain consistent control over processes.


These electro proportional valves are designed to be compact, making them suitable for space-constrained environments. Despite their small size, they deliver high flow rates and excellent performance. This compact design also facilitates easy installation and integration into existing systems.


With INNO electronically controlled proportional valves, users can benefit from their reliability and durability. These valves are built to withstand harsh operating conditions, ensuring long-lasting performance and minimal maintenance requirements. Additionally, they are built with high-quality materials and undergo rigorous testing to ensure their reliability.


Overall, INNO electronically controlled proportional valves deliver precise control, compact design, and superior performance. Whether used in industrial automation, fluid management, or other applications, these valves offer exceptional reliability and efficiency. Choose Inno for reliable and efficient electronically controlled proportional valves.


How Does Proportional Valve Work?

Proportional valves work by utilizing an electrical signal to control the position or opening of the valve, which in turn regulates the flow rate or pressure of a fluid within a hydraulic or pneumatic system. Proportional valves provide accurate and dynamic control over fluid flow or pressure, allowing for precise regulation and responsiveness in a wide range of valve applications. The electrical signal input determines the valve's position or opening, resulting in proportional control of the fluid flow or pressure in real-time.

Electrical Input

An electrical signal is sent to the proportional valve, typically from a control system or a proportional control device. This signal represents the desired flow rate or pressure setpoint.

01
Valve Response

The electrical signal is received by the valve's internal electronics, which convert it into a corresponding mechanical output. This output is used to position or adjust the valve's opening.

02
Spool or Piston Movement

The mechanical output from the valve's electronics actuates a spool or piston mechanism within the valve. This movement adjusts the size of the flow passage or changes the valve's internal geometry, affecting the fluid flow rate or pressure.

03
Fluid Flow Control

As the spool or piston position changes, the fluid flow rate or pressure through the valve is modulated accordingly. The proportional relationship between the electrical input signal and the valve's position allows for precise and proportional control of the fluid flow rate or pressure.

04

Electronically Controlled Hydraulic Proportional Valves Applications

Electronically controlled hydraulic proportional valves are components used in hydraulic systems to regulate the flow rate or pressure of hydraulic fluid based on electronic signals. These valves are valuable in various industrial and commercial applications where precise control, efficiency, and automation are important. Here are some common applications of electronically controlled hydraulic proportional valves:

Electronically Controlled Hydraulic Proportional Valves Applications
Industrial Machinery and Automation

Electro proportional valves are widely used in industrial machinery such as injection molding machines, metal forming equipment, presses, and CNC machines. These valves allow precise control over movement and force, enabling the machines to achieve accurate and repeatable results.

Mobile Equipment

Construction machinery, agricultural equipment, and mining vehicles benefit from electro proportional valves to control the movements of various functions like booms, arms, buckets, and outriggers. Proportional valves ensure smooth and controlled motion, enhancing operator efficiency and equipment safety.

Aerospace and Aviation

Electro proportional valves are used in aircraft hydraulic systems to control various functions, such as landing gear deployment, wing flap movement, and actuation of control surfaces. Their ability to provide precise and rapid adjustments is crucial for flight safety and performance.

Material Handling

Electro proportional valves are used in automated material handling systems, such as conveyor belts, lifts, and robotic arms. These valves help in controlling the movement and positioning of materials with accuracy and efficiency.

Process Control

Industries like paper, pulp, and steel often use electro proportional valves in their manufacturing processes to control the flow of fluids, adjust pressures, and maintain consistent product quality.

Test and Simulation Equipment

Electro proportional valves are employed in testing and simulation setups to replicate real-world conditions and perform controlled experiments. They are used in automotive testing, environmental testing, and other research applications.

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About Hydraulic Valve Supplier INNO Home Hydraulic Cartridge Valve About Us Download Sanitation Vehicle Directional Check Valve Hydraulic Needle Valve Pilot Operated Relief Valves Poppet, 2-Way, N.C. Hydraulic Solenoid Valve Electro-Proportional Pressure Control Valve Working Principle of Hydraulic Cartridge Valves ICV12-20 Poppet Check Valve IPC12-30 Pilot-to-Open Check Valve (Dual-Pilot-Operated) ILS04-B30 Load Shuttle Ball Valve IPD10-40 Piloted 3-Way Spool Valve IMR10-47A Manual Directional Valve IEP08-35 Piloted Logic Element Valve INV08-20A Hydraulic Needle Valve IFD50-45 Flow Divider/Combiner IRV10-26 Pilot-Operated Spool Relief Valve IRV08-20 Relief Valve Direct-Acting Poppet IRSDC-LBN Sequence Valve ISV08-24 Spool 2-Way N.C. Solenoid Valve ISV08-30 Spool 3-Way 2-Position Solenoid Valve I1CPBD120F2P Counterbalance Valve Wuhu Inno Hydraulic Technology Co., Ltd. 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