What is a proportional valve?

What is a proportional valve?

 

A plastic proportional valve is an electro-pneumatic or hydraulic control component that precisely regulates flow, pressure, or direction in proportion to an input electrical signal. Made from engineered plastics, it is corrosion-resistant and commonly used in medical equipment, plastic processing machinery to mix virgin/regrind materials, and automated industrial systems.

 

This proportional valve is designed to enhance the efficiency and accuracy of material mixing in plastic processing. With a unique design and stable performance, it ensures smooth operation and precise control.

 

Key Features and Applications:

 

Proportional Control: Unlike traditional on/off valves, these adjust output continuously between fully open and closed based on signal strength.

 

Material Mixing: In plastic machinery, they ensure accurate mixing ratios of virgin and recycled (regrind) plastic materials.

 

Corrosion Resistance: Often used in medical devices and chemical processes because they withstand harsh, corrosive media (e.g., saline, disinfectants).

 

Components: Typically consist of a plastic body, a solenoid actuator, and a spool or plunger that shifts to control media flow.

 

Benefits: These valves offer a compact design, low-noise performance, high accuracy, and efficient material transport.

 

 

These valves are crucial in medical, chemical processing, and plastic manufacturing environments that require precise, reliable, and corrosion-resistant fluid handling.

 

 

 

Our Proportional Valves

As a proportional valve supplier, we offer a wide range of high-quality proportional valves for various applications. Our RPV Proportional Valve For Rhong Machinery is designed for use in mixing machinery, providing precise control of fluid flow and pressure. Our Two Material Ratio Valve 38MM is ideal for applications where accurate ratio control of two materials is required.

 

 

References

• "Industrial Valve Handbook" by Peter A. Schweitzer
• "Fluid Power Technology" by Donald C. Greenwood
• "Control Valve Handbook" by Milton Beychok