流量调节阀称为流量控制阀或流量调节阀（也称为流通阀或节流阀）。这些阀用于调节所用介质的流量。节流阀用于液压和气动系统，以调节液压油或压缩空气的流量。
节流阀分为：
对于节流阀，压差越大，体积流量越大，因为体积流量取决于节流点处的压差。
相反，流量调节阀（体积控制阀）使用压力补偿进行工作。这样即使阀的压力水平发生变化，也能保证设定的体积流量保持不变。
Festo 为工业和过程自动化提供各种节流阀。了解我们的节流阀产品组合：节流阀、单向节流阀和延时阀。
With one-way flow control valves, the flow in one direction is restricted, and is free in the other. One-way flow control valves are used to adjust the speed of pneumatic cylinders, while flow control valves, on the other hand, are used to adjust the flow of air or a fluid.
Time delay valves switch over after a signal has been output and once a preset time has elapsed. They are used in simple pneumatic controllers, in addition to, among others, logic valves.
Recommended Festo flow control valves for production facilities for manufacturing lithium-ion batteries.
Metals with copper, zinc or nickel as the main constituent are excluded from use.Exceptions are nickel in steels, chemically nickel-plated surfaces, printed circuitboards, cables, electrical plug connectors and coils.
Flow control valves are used to adjust the speed of a cylinder or the rotational speed of a motor. Both variables depend on the volumetric flow rate, which must be adjusted.
A flow control valve works on the basis of pressure compensation. This means that the set volumetric flow rate remains unchanged even if the pressure level across the valve changes.
A one-way flow control valve ensures that the medium (gas or liquid) only flows in one direction and cannot flow back. One-way flow control valves open automatically as soon as the liquid or gas begins to flow. When the direction of the flow changes, the valve closes.