基本細(xì)節(jié):G761-3002B 流量控制伺服閥 高動態(tài)響應(yīng)

G761-3002B 系列流量控制伺服閥是可用作三通和四通節(jié)流型流量控制閥，用于四通閥時控制性能更好。該系列閥為高性能的兩級電液伺服閥，在每一節(jié)流邊 35 bar（500 psi）閥壓降下的額定流量為 0.5 至 75 l/min（0.125 至 19.5 gpm）。該系列閥結(jié)構(gòu)簡單、堅固，工作可靠，使用壽命長。閥的先導(dǎo)級是一個對稱的噴嘴擋板力矩馬達(dá)。輸出級包含一個經(jīng)過精密研磨與閥套匹配的4邊滑閥芯，可實現(xiàn)最優(yōu)性能。閥芯
位置由一根硬質(zhì)合金反饋桿進(jìn)行機(jī)械反饋至力矩馬達(dá)。反饋桿終端的硬質(zhì)合金球可確保高度準(zhǔn)確性、可靠運(yùn)行以及較長的使用壽命。穆格所有伺服閥即便是在最嚴(yán)苛的工業(yè)應(yīng)用中也可保證高度準(zhǔn)確性并實現(xiàn)可靠運(yùn)行，因此享有盛譽(yù)。此類閥適用于具有較高動態(tài)響應(yīng)要求的電液位置、速度、壓力或力伺服控制系統(tǒng)。
優(yōu)點：
1.確保啟機(jī)平順簡單，減少停機(jī)時間，保證在關(guān)鍵工業(yè)應(yīng)用中使用壽命很長
2.能夠?qū)崿F(xiàn)高水平設(shè)備性能、更快的周期時間和更高的準(zhǔn)確性，最終為客戶帶來更高的生產(chǎn)效率高可靠性冗余設(shè)計
3.精確流量控制和可預(yù)測性
4.消除力矩馬達(dá)氣隙中可能導(dǎo)致機(jī)器設(shè)備故障停機(jī)的潛在污染問題
5.在惡劣環(huán)境中使用時具備壽命長、抗磨損的優(yōu)點:使用過程中滑動摩擦力較低
6.相比開槽閥芯和藍(lán)主石球設(shè)計，延長了同服閥使用壽命
7.大多數(shù)伺服閥經(jīng)過設(shè)置，在指令信號中斷或消失時可返回失效保護(hù)位置
8.能夠在現(xiàn)場進(jìn)行預(yù)防性維護(hù)，從而節(jié)約主貴的機(jī)器停機(jī)時間和維修成本
9.能夠讓技術(shù)人員手動進(jìn)行伺服閥零偏調(diào)節(jié)，以適應(yīng)機(jī)器設(shè)備的工況(見“李位流量調(diào)節(jié)”部分)。該特性有助于在不調(diào)節(jié)控制器的條件下對設(shè)備性能進(jìn)行簡單調(diào)節(jié)。

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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