Electro-Proportional Valve

An electro-hydraulic flow control valve electronic, also known as an electro-
proportional control valve or simply an EPV, is a type of valve 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.

What Is electronically controlled hydraulic proportional valves?

An proportional relief valve hydraulic, also known as an electro proportional
valve, is a type of valve that utilizes an electrical signal to control and
regulate the flow rate or pressure of a fluid within a hydraulic or pneumatic
system. It operates based on the principle of proportionality, where the
valve's position or opening is directly proportional to the electrical input
signal received. Electro proportional hydraulic solenoid valve 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.

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 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.


There are many cartridge valve manufacturers, but we are one of the best
choices for you.

Minimum Order: 100 pieces

Click to Enlarge