High valve-core driving force; Steady zero; High sensibility; High resolution; Low hysteresis; Long reliability in service

PerformanceSupply oil pressure(MPa):1.5~21Rated supply oil pressure(MPa):16Rated flow(L/min):200,250

Rated current(mA):15,30,40Hysteresis(%):≤4Threshold(%):≤1Non linearity(%):≤±10Asymmetry(%):≤±10Pressure gain(%Ps/1%In):>25Internal leakage(L/min):≤3.2Null bias(%):≤±3Null shift of supply oil pressure(80-110%Ps)(%):≤±3Null shift of return oil pressure(0-20%Ps)(%):≤±2Null shift in temperature(-30~+150C)(%):≤±4Amplitude ratio with(-3dB)(Hz): >20Phase lag with(-90°)(Hz): >25Work temperature(C):-40~+100Net weight(kg):6.5

JIUJIANG ZHONGCHUAN INSTRUMENT CO.,LTD

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TEST EQUIPMENTS OF SERVO VALVE

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Two-stage Electro Hydraulic Servo Valve(QDY11B)