638 Series Servo Proportional Valve

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-The 638 Series Servo Proportional Valve is designed for precision control of flow rates and boasts a leakage rate that is significantly lower than other servo valves. Its direct drive technology and lack of pilot stages and throttling restrictions ensure low hydraulic power consumption and high resistance to contaminants. This valve also features an LVD T valve position sensor for closed-loop control, resulting in minimal hysteresis, high resolution, and excellent repeatability. With a variety of power-off safety options, including an external zero-position adjustment on the control box, this product is suitable for a wide range of heavy-duty industrial applications.

Product Features • No pilot stage, leakage, low leakage
• No pilot stage, throttle small hole, anti-fouling, strong energy
• Hysteresis, loop size, high resolution, good repeatability
Power failure puts the negative load in the safe state
• Outside, zero function
• Minimal effect of reduced system oil pressure on valve dynamics
• High structural strength

产品特点• ⽆ 先 导 级 泄 漏 ， 泄 漏 低
• ⽆ 先 导 级 节 流 ⼩ 孔 ， 抗 污 染 能 ⼒ 强
• 滞 环 ⼩ ， 分 辨 率 ⾼ ， 重 复 精 度 好
• 断 电 失 效 对 中 ， 使 负 载 处 于 安 全 状 态
• 外 调 零 功 能
• 系 统 供 油 压 ⼒ 降 低 对 阀 动 态 影 响 ⼩
• 结 构 强 度 ⾼