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1. Types and Parameters of Automatic Control Valves

Control valves regulate the flow, pressure, and temperature of fluids such as water, oil, and chemicals. Choosing the right type depends on specific process parameters:

Key Types: Pressure reducing valves, proportional control valves, temperature control valves, and electromagnetic systems.

Critical Parameters:

Temperature: Thermal limits of the fluid.

Pressure: Delta P (pressure drop) across the valve.

Flow Rate: Required CV/KV values for the process.

2. Electric vs. Pneumatic Valves: Why Electric is Winning

As industry 4.0 matures, the demand for electric motor-driven valves has surged. Here is how they compare to traditional pneumatic systems:

Lower Total Cost of Ownership (TCO)

Pneumatic Valves: Require expensive infrastructure including air compressors, specialized piping, and solenoid valves. Maintenance of air lines adds to the cost.

Electric Valves: Simply connect to the factory’s existing electrical grid. They eliminate the need for pneumatic accessories, significantly reducing installation and capital expenditure.

Superior Operational Stability

Electric valves use motor-driven actuators that provide a smooth opening and closing process. Unlike pneumatic valves, which can suffer from "instantaneous impulse" or water hammer effects, electric versions reduce mechanical wear and system failure rates.

Simplified Maintenance

While the initial purchase price of an electric valve may be higher, the lack of peripheral air equipment means fewer failure points and lower long-term maintenance labor.

 Do you still need to know or purchase the following control valve products:

• Self-reliance electric temperature regulator
• Self-reliance flow regulator
• self-reliance micro-pressure regulator
• Self-reliance pressure differential regulator
• Self-reliance pressure regulator

2026-01-08

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