MOOG D634-501A比例阀
1.产 品 资 料 介 绍：
- 直动式 DDV 控制架构：MOOG D634-501A 采用直动式（DDV）设计，由永磁式线性力马达直接驱动阀芯，取消传统先导级结构，无需外部先导油源即可实现双向位移控制。相比 D661-4651 的两级架构，减少 40% 以上传动环节，阀体体积缩小 30%，更适配中小型设备的狭小安装空间，如注塑机、吹塑设备的液压控制单元。
- 集成化电控模块设计：内置 24V 供电的 SMD 技术集成电路板，集成脉宽调制（PWM）驱动电路与阀芯位置闭环控制功能，将信号处理、功率放大与反馈调节融为一体。无需额外配置伺服放大器，直接接收控制指令即可运行，大幅简化系统集成流程，降低设备部署成本。
- 标准化安装与适配结构：采用 ISO 4401 标准 03/05 尺寸安装底面，支持三通、四通及 2*2 通等多种油路配置，可直接替换传统比例阀或伺服阀，无需改造液压系统阀块。这种兼容性设计使其在压铸机、木材处理设备等老旧设备升级中具备显著优势。
- 高压适配与流量特性：最大工作压力可达 35MPa，在 7MPa 阀压降条件下，额定流量覆盖 10-60L/min（根据阀芯规格细分），能为中小型液压执行机构提供稳定动力。相比 D661-4651 的大流量特性，其流量输出更适配精密机床、测试台等中小型设备的控制需求，且低压差工况下线性度更优。
- 高频响动态响应：依托线性力马达的直接驱动特性，频率响应达 50-70Hz（±100% 输入信号），100% 阶跃响应时间≤12ms，显著快于 D661-4651 的 25ms。动态性能不受系统压力波动影响，可快速跟随指令调整流量，有效抑制液压系统滞后，保障高速冲床、自动化机械臂的运动精度。
- 高精度闭环控制指标：通过阀芯位置传感器（LVDT）实现电闭环控制，滞环误差低于 0.3%，分辨率优于 0.1%，较 D661-4651 的控制精度提升 60% 以上。最小可控流量偏差≤0.2%，可满足半导体设备微进给、精密压力调节等精细化场景需求。
MOOG D634-501A比例阀 英文资料：
1、 Infrastructure and Design Characteristics
Direct acting DDV control architecture: MOOG D634-501A adopts a direct acting (DDV) design, which is directly driven by a permanent magnet linear force motor to drive the valve core, eliminating the traditional pilot stage structure and achieving bidirectional displacement control without the need for an external pilot oil source. Compared to the two-stage architecture of D661-4651, it reduces transmission links by more than 40% and valve body volume by 30%, making it more suitable for the narrow installation space of small and medium-sized equipment, such as hydraulic control units for injection molding machines and blow molding equipment.
Integrated electronic control module design: Built in 24V power supply SMD technology integrated circuit board, integrated pulse width modulation (PWM) drive circuit and valve core position closed-loop control function, integrating signal processing, power amplification, and feedback regulation. Without the need for additional servo amplifiers, it can run directly by receiving control instructions, greatly simplifying the system integration process and reducing equipment deployment costs.
Standardized installation and adaptation structure: Adopting ISO 4401 standard 03/05 size installation bottom, supporting various oil circuit configurations such as three-way, four-way, and 2 * 2-way, it can directly ｒｅｐｌａｃｅ traditional proportional valves or servo valves without the need to modify hydraulic system valve blocks. This compatibility design gives it significant advantages in upgrading old equipment such as die-casting machines and wood processing equipment.
2、 Core performance and control accuracy
High pressure adaptation and flow characteristics: The maximum working pressure can reach 35MPa, and under 7MPa valve pressure ｄｒｏｐ conditions, the rated flow covers 10-60L/min (subdivided according to valve core specifications), providing stable power for small and medium-sized hydraulic actuators. Compared to the high flow characteristics of D661-4651, its flow output is more suitable for the control requirements of small and medium-sized equipment such as precision machine tools and test benches, and its linearity is better under low pressure ｄｒｏｐ conditions.
High frequency dynamic response: relying on the direct driving characteristics of linear force motors, the frequency response reaches 50-70Hz (± 100% input signal), and the 100% step response time is ≤ 12ms, significantly faster than the 25ms of D661-4651. The dynamic performance is not affected by system pressure fluctuations, and can quickly adjust the flow rate according to instructions, effectively suppressing hydraulic system lag and ensuring the motion accuracy of high-speed punching machines and automated robotic arms.
High precision closed-loop control indicators: Electric closed-loop control is achieved through valve core position sensors (LVDT), with hysteresis error less than 0.3% and resolution better than 0.1%, improving control accuracy by more than 60% compared to D661-4651. The minimum controllable flow deviation is ≤ 0.2%, which can meet the requirements of refined scenarios such as semiconductor equipment micro feed and precision pressure regulation.
MOOG D634-501A比例阀 产品展示
产品视频
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The content is from Ruichang Mingsheng Automation Equipment Co., LTD
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