The Woodward 9907-165 is part of the 505E series of digital governors, designed for precise control of industrial steam turbines with controlled extraction and/or admission pressure regulation. Built on a 32‑bit microprocessor platform, it delivers high‑performance digital control, advanced diagnostics, and flexible configuration for demanding turbine applications.
Key Features
Manufacturer: Woodward
Model: 9907-165
Series: 505E Digital Governor
Certifications: CE, UL, cUL
Dimensions: 14 in (L) × 11 in (H) × 4 in (D)
Enclosure Type: NEMA 4 (industrial protection)
Input Voltage: 18–32 VDC
Keypad/Display: 30 analog keys, 2 rows × 12 characters resolution
Operating Temperature: –13 °C to +65 °C (–13 °F to +149 °F)
Outputs:
2 actuator outputs
8 relay outputs
6 programmable current outputs
Features: Program upload/download capability for easy configuration
Standards: Shock protection meets US MIL‑STD‑810C, Method 516.2‑1, Procedure 1B
Weight: < 10 lbs before shipping
Functional Role
Provides digital control of steam turbines with extraction/admission pressure regulation
Drives inlet steam valves via dual actuators
Offers programmable outputs for integration with plant systems
Ensures fault‑tolerant operation with rugged industrial design
Application Scenarios
Industrial steam turbines in power generation and utilities
Small turbogenerators requiring precise valve control
Turboexpander models in petrochemical and energy industries
Q: What type of turbines is the 9907-165 designed for? A: It is built for industrial steam turbines, turbogenerators, and turboexpanders with extraction/admission control.
Q: How does it control turbine operation? A: By using two actuator outputs to drive inlet steam valves, while monitoring pressure and system parameters.
Q: Is the unit rugged enough for harsh environments? A: Yes, it features a NEMA 4 enclosure and meets MIL‑STD‑810C shock protection standards.
