哈威节流阀作用是通过有效的螺纹长度达到的。哈威Q，QR与QV型阀均有5种规格，并在蓄能器油路和控制油路中用作流量控制。哈威Q型节流阀采用全行程恒定节流面积的开口式阀芯结构，对微小污垢不敏感（无缝隙过滤作用）。哈威FG型微量节流阀也可用于换向阀换向时间的调节，并避免切换时流量冲击及阻尼振动。QR50T12专卖店HAWE哈威节流阀

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QR50T12专卖店HAWE哈威节流阀 哈威Q/QR/QV型节流阀，哈威精密节流阀，哈威HAWE节流阀的技术参数说明：

Throttles are a type of metering valve. The valve types Q, QR and QV are subdivided  into five sizes and are used to limit the flow in accumulator and circuits. They  are designed as slot-type throttles （complete stroke） and are therefore impervious to  micro-contaminants （no edge filter effect）.  The precision throttle valves type FG are preferentially used for adjusting the switching  time of directional valves, preventing pressure surges and damping oscillations. The  throttle effect is achieved via the effective thread length.  The settings can only be adjusted using tools.