If we compare modern industrial civilization to a vast and vibrant living organism, then fluid control is the “invisible nervous system and valve system” that enables this organism to breathe freely and circulate blood smoothly.

    Whether it’s the perfectly regulated flow of water when you turn on the faucet at home or the precise injection of thousands of metric tons of fuel as a rocket soars into the sky, both rely on the magic of fluid control. Let’s demystify fluid control in a way that’s easy to understand.

    I. A Fun Comparison

    Fluid control is like the human body’s “blood circulation.” If we compare the entire fluid system to the human body, the way it works is actually remarkably similar to how our bodies function:

    Heart = Pump: Responsible for providing a continuous supply of power to push liquids or gases to distant locations.
    Blood vessels = Pipelines: An extensive network of tubes responsible for transporting substances.
    Vascular muscles and valves = Valves: By opening, closing, and regulating, they determine where flow should be allowed, where it should be blocked, and how much should flow.
    The brain and nerves = Control system: They monitor in real time where pressure is too high or temperature is abnormal, and quickly direct the valves and pump to make adjustments.

    II. The Three Core Tasks of Fluid Control

    Fluid control is not simply a matter of “turning a faucet on or off”; it primarily faces the following three major technical challenges:Managing Pressure (Safety Barrier)When fluids flow through pipes, excessively high pressure can cause the pipes to burst, while excessively low pressure prevents the fluid from reaching its destination. Fluid control must act like a “safety guardian,” using pressure-reducing valves and safety valves to maintain pressure within a safe and efficient range.Precise Flow Control (On-Demand Distribution)Just as adding the right amount of salt to a stir-fry requires precision, the mixing ratios of industrial chemicals and the flow rates of HVAC refrigerants must be controlled “down to the millimeter” using high-precision control valves.Optimizing Flow Direction (Minimizing Resistance)Liquids or gases experience energy loss (flow resistance) when turning corners or passing through valves. An excellent fluid control design ensures that fluids “flow smoothly” with minimal energy consumption.

    III. Ubiquitous Application Scenarios

    Food, Clothing, Housing, and Transportation (Daily Life): How does your home’s gas water heater maintain a constant water temperature? It’s all thanks to the internal flow sensor and proportional valve, which instantly adjust the ratio of gas to water flow. The coolant circulation in a car’s engine and the flow of refrigerant in an air conditioner all rely on fluid control.
Green Energy and Water Resources: Automated water supply at municipal water treatment plants and aeration tank control at wastewater treatment plants ensure the safety of water resources for millions of households.
Cutting-Edge Technology (National Strategic Assets): In semiconductor chip manufacturing plants, the control precision for ultra-pure water and specialty gases must reach the micron level; in the aerospace sector, rocket engine valves must operate “fail-safe” under extreme conditions—whether in sub-zero temperatures, high heat, or ultra-high pressure.