ZDLM type electric regulating sleeve is composed of 3810L series electric actuators and sleeve valve, electric actuator in the servo system, without the servo amplifier, electronic control unit is designed to be a box form, and the amount of resin casting driven feedback detection using high performance conductive plastic potentiometer, high reliability the product has 1/250 resolution, the connection is very simple, only need to control operation with DC4~20mA or DC1~5V input signal of AC single-phase power line, adjusting mechanism adopts balanced valve plug valve structure, has good stability, easy vibration, low noise, low sensitivity to temperature, allowing the use of larger pressure difference characteristics. Used in large flow, leakage requirements are not strict occasions.