Digital guide
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Woodward 8915-1023
- Product Name: Woodward 8915-1023
- Product Introduction: Specific public documentation for part number 8915-1023 was not directly retrieved in this search. Within the broader Woodward 8915 series, neighboring part numbers such as 8915-1025 correspond to advanced valve and actuator assemblies (e.g., 3103 series gas valve paired with EM-35 electric actuator).
Detailed content
- Technical Specifications: Exact parameters for 8915-1023 are not publicly verified. For reference, similar 8915-10xx series electric actuator and valve packages feature:
- Actuator Type: EM-35 electric actuator with brushless DC motor
- Position Feedback: High-precision resolver directly coupled to valve metering sleeve
- Torque Output: Continuous ±25 N·m, Peak ±45 N·m
- Power Supply: 28 Vdc nominal (18–32 Vdc operating range)
- Valve Flow Range: 50–40,000 lb/h (23–18,144 kg/h)
- Explosion-proof Certification: CSA Listed Class I, Division 1, Groups C & D
- Functional Features: As a member of the 8915-10xx series, it likely features electric servo actuation with high-precision control, fault-safe spring return, and self-cleaning valve geometry.
- Application Scenarios: Suited for industrial gas turbine fuel control, gas compressor drives, combined heat and power systems, distributed energy stations, dry low-emission (DLE) turbine fuel metering, marine and offshore gas-powered installations.
- Material Composition: Valve body and internal parts in stainless steel/hardened steel, actuator housing in anodized aluminum, seals in Viton A elastomer.
- Structural Characteristics: Rotary sleeve and flapper-type throttling structure with inlet flow deflector; integrated EM-35 electric actuator with brushless DC motor, planetary gear reduction, and clutch protection.
- Working Principle: Controller outputs current to torque motor, generating proportional hydraulic force that drives servo piston to rotate output shaft, positioning valve sleeve to change metering opening. Feedback spring creates force balance for proportional valve position control.
- Installation Requirements: Hydraulic system must maintain ISO 4406 20/18/15 or higher cleanliness; supply line filtration at 10 μm nominal; actuator can be mounted in any orientation; keep protective caps on hydraulic and media ports until connection.
- Usage Notes: Hydraulic oil cleanliness directly impacts actuator life and performance—regular testing required. Control signal benefits from dither overlay to reduce static friction. Calibration files must be correctly loaded; mechanical limit screws must be recorded and verified after adjustment. Relieve hydraulic pressure before maintenance.
