Wholesale Proportional Valve Company

Product Overview

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Product Features

**Product Overview**

Product Value

ChangJia proportional valves are precision hydraulic components designed for accurate pressure regulation through proportional solenoid actuation. Manufactured by CHONGQING CHANGJIA INTERNATIONAL TRADING CO., LTD, these valves integrate valve and electronic control from a single source, featuring an electrical closed-loop position control system to ensure precise operation.

Product Advantages

**Product Features**

Application Scenarios

- Low hysteresis and high repeatability for consistent performance.

- Electrical closed-loop position control with spring pre-tensioning to minimize friction effects.

- Proportional solenoid actuation paired with an inductive position transducer for pressure balance.

- Valve construction includes housing, solenoid, valve seat, and poppet for reliable pressure regulation.

- Supports a wide range of pressures (2.5 to 31.5 MPa) and can handle various flow rates.

**Product Value**

The valves provide precise, reliable hydraulic pressure control with minimal deviation, improving system stability and efficiency. Their integration of valve and electronics enhances ease of installation and maintenance. This product’s robustness and accuracy add value by reducing downtime and increasing operational consistency across industries.

**Product Advantages**

- Low hysteresis (

- Electrical closed-loop system eliminates solenoid friction effects, enhancing accuracy.

- Versatile pressure stages and flow rate options meet diverse application needs.

- Durable and compatible with common hydraulic fluids (mineral oil, phosphate ester) across broad temperature ranges (-20°C to +70°C).

- IP65 protection rating ensures reliable operation in demanding environments.

**Application Scenarios**

Ideal for industries requiring precise hydraulic pressure control such as manufacturing automation, mobile machinery, industrial hydraulics, aerospace systems, and heavy equipment. The valve’s accuracy and versatility make it suitable for pressure regulation tasks where fine control and system reliability are critical.

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