G761-3002B 流量控制伺服阀 高动态响应

基本细节:G761-3002B 流量控制伺服阀 高动态响应

G761-3002B 系列流量控制伺服阀是可用作三通和四通节流型流量控制阀，用于四通阀时控制性能更好。该系列阀为高性能的两级电液伺服阀，在每一节流边 35 bar（500 psi）阀压降下的额定流量为 0.5 至 75 l/min（0.125 至 19.5 gpm）。该系列阀结构简单、坚固，工作可靠，使用寿命长。阀的先导级是一个对称的喷嘴挡板力矩马达。输出级包含一个经过精密研磨与阀套匹配的4边滑阀芯，可实现最优性能。阀芯
位置由一根硬质合金反馈杆进行机械反馈至力矩马达。反馈杆终端的硬质合金球可确保高度准确性、可靠运行以及较长的使用寿命。穆格所有伺服阀即便是在最严苛的工业应用中也可保证高度准确性并实现可靠运行，因此享有盛誉。此类阀适用于具有较高动态响应要求的电液位置、速度、压力或力伺服控制系统。
优点：
1.确保启机平顺简单，减少停机时间，保证在关键工业应用中使用寿命很长
2.能够实现高水平设备性能、更快的周期时间和更高的准确性，最终为客户带来更高的生产效率高可靠性冗余设计
3.精确流量控制和可预测性
4.消除力矩马达气隙中可能导致机器设备故障停机的潜在污染问题
5.在恶劣环境中使用时具备寿命长、抗磨损的优点:使用过程中滑动摩擦力较低
6.相比开槽阀芯和蓝主石球设计，延长了同服阀使用寿命
7.大多数伺服阀经过设置，在指令信号中断或消失时可返回失效保护位置
8.能够在现场进行预防性维护，从而节约主贵的机器停机时间和维修成本
9.能够让技术人员手动进行伺服阀零偏调节，以适应机器设备的工况(见“李位流量调节”部分)。该特性有助于在不调节控制器的条件下对设备性能进行简单调节。

G761-3002B

G761-3002B series flow control servo valves can be used as three-way and four-way throttling flow control valves for better control performance when used in four-way valves. The valves are high-performance, two-stage electro-hydraulic servo-valves with a rated flow rate of 0.5 to 75 l/min (0.125 to 19.5 gpm) at 35 bar (500 psi) valve pressure drop per throttling edge. The valve series has simple structure, strong, reliable operation and long service life. The pilot stage of the valve is a symmetrical nozzle flapper torque motor. The output stage contains a 4-sided spool that is finely ground to match the valve sleeve for optimal performance. Valve core
The position is mechanically fed back to the torque motor by a cemented carbide feedback rod. The carbide ball at the end of the feedback lever ensures high accuracy, reliable operation and a long service life. All MOOG servo valves have a reputation for high accuracy and reliable operation even in the most demanding industrial applications. These valves are suitable for electro-hydraulic position, speed, pressure or force servo control systems with high dynamic response requirements.
Advantages:
1. Ensure smooth and simple starting, reduce downtime, and ensure a long service life in key industrial applications
2. Can achieve a high level of equipment performance, faster cycle time and higher accuracy, and ultimately bring higher production efficiency, high reliability and redundancy design to customers
3. Precise flow control and predictability
4. Eliminate potential pollution problems in the torque motor air gap that may lead to machine equipment failure and shutdown
5. It has the advantages of long life and anti-wear when used in harsh environments: low sliding friction during use
6. Compared with the slotted spool and the blue main stone ball design, the service life of the same service valve is extended
7. Most servo valves are configured to return to the fail-safe position when the command signal is interrupted or disappeared
8. Can perform preventive maintenance on site, thus saving expensive machine downtime and repair costs
9. It can allow technicians to manually adjust the servo valve to zero deviation to adapt to the working conditions of the machine and equipment (see “Li position flow adjustment” section). This feature facilitates simple adjustment of device performance without adjusting the controller.

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