G771K203A 是穆格（MOOG）公司生产的伺服控制阀，属于 G77X/-77X 系列流量控制伺服阀。以下是该伺服阀的一些关键信息：

该阀的输出阶段是一个闭中心、四通滑阀。先导级是一个对称的双喷嘴和挡板，由双气隙、干扭矩电机驱动。滑阀位置的机械反馈由悬臂弹簧提供，阀设计简单而坚固，确保可靠、长寿命运行 。

这些阀门适用于电液位置、速度、压力或力控制系统，具有高动态响应要求。G77X/-77X 系列非常适合于需要卓越动态性能的应用 。

该系列阀门有本质安全型版本，可用于潜在危险环境中的应用，特定型号已获得 FM、ATEX、CSA、TllS 和 IECEx 标准的认证 。

G77X/-77X 系列是经过验证的技术，在需要高性能、稳定性和准确性的机器中可靠运行。穆格的机械反馈阀旨在提供高可靠性和长使用寿命 。

额定流量范围从 1.9 至 57 升/分钟（0.5 至 15 加仑/分钟），标准配置有 4, 10, 19, 38, 57 升/分钟（1, 2.5, 5, 10, 15 加仑/分钟）的选项 。

最大工作压力为 210 或 350 巴（3,000 或 5,000 psi）。

100%阶跃响应时间为 4 至 17 毫秒，频率响应为 115 至 215 赫兹 。

额定信号为 8 至 200 毫安，标准配置有 8, 15, 20, 40, 200 毫安的选项 。

阀体尺寸小，重量为 0.86 公斤（1.9 磅）

G771K203A is a servo control valve produced by MOOG Company, belonging to the G77X/-77X series of flow control servo valves. Here are some key information about the servo valve:

The output stage of the valve is a closed center, four-way slide valve. The pilot stage is a symmetrical dual nozzles and baffles driven by a dual air gap, dry torque motor. Mechanical feedback to the slide valve position is provided by the cantilever spring, and the valve design is simple yet robust, ensuring reliable, long-life operation.

These valves are suitable for electro-hydraulic position, speed, pressure or force control systems with high dynamic response requirements. The G77X/-77X series is ideal for applications that require exceptional dynamic performance.

The valves are available in intrinsically safe versions for applications in potentially hazardous environments, with specific models certified to FM, ATEX, CSA, TllS and IECEx standards.

The G77X/-77X series is a proven technology for reliable operation in machines that require high performance, stability and accuracy. Moog's mechanical feedback valves are designed to provide high reliability and long service life.

Flow ratings range from 1.9 to 57 L/min (0.5 to 15 gal/min), with options of 4, 10, 19, 38, 57 L/min (1, 2.5, 5, 10, 15 gal/min) available as standard.

Maximum working pressure is 210 or 350 bar (3,000 or 5,000 psi).

The 100% step response time is 4 to 17 milliseconds and the frequency response is 115 to 215 Hz.

Signals are rated from 8 to 200 mA, with 8, 15, 20, 40, 200 mA options available as standard.

Small body size, 0.86 kg (1.9 lb)

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