WOODWARD 25000415-105-901 Hydraulic-Electric Converter Detailed Explanation
I. Product Positioning
This item is a classic Woodward speed control system hydraulic-electric converter (hydraulic-electric servo valve), belonging to the core executive component of the turbine, gas turbine, and large diesel generator set speed control circuits. Its function is to precisely convert the standard electrical control signal output by the controller into hydraulic driving force, driving the oil actuator to adjust the opening degree of the intake / intake oil valves, achieving closed-loop regulation of the unit’s speed and load. The model section code 25000415 represents the basic series number of the product, and 105-901 represents the customized electrical parameters, interfaces, and range version.
Core Functions and Key Characteristics
Signal Conversion Logic
Receiving the 4-20mA analog electrical control signal sent by the speed regulator, it linearly converts the hydraulic output pressure / flow, driving the hydraulic actuator to change the valve stroke, with fast response speed and high control linearity, suitable for scenarios of stable speed and load variation of the unit.
Structure and Durability Design
Integrated overall structure, suitable for industrial hydraulic oil conditions; equipped with built-in fault self-check, capable of identifying coil breakage, signal over-range abnormalities, suitable for harsh environments in power plants and refineries with multiple dust and temperature fluctuations; the protection level is suitable for embedded installation in the cabinet.
Companion Compatibility
Can be used in combination with Woodward 505/505E, EASYGEN series speed control controllers, various hydraulic oil actuators, widely used in thermal power turbine, centrifugal compressors, industrial generator sets for renovation and maintenance.
Typical Parameters and Operating Conditions
Input Signal: Industrial standard 4~20mA current control signal
Supplying Medium: Special anti-wear hydraulic oil, the cleanliness of the oil needs to be strictly controlled (the servo valve is sensitive to impurities, oil contamination is prone to cause valve core jamming)
Operating Environment: Normal industrial site temperature 0~60℃, avoid strong corrosion, high condensation environment
Installation Form: Oil circuit board installation, wiring uses shielded cables to reduce on-site electromagnetic interference
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