




Product Description
Woodward 9907-1197 CPC-II Current-to-Pressure Converter
- Manufacturer: Woodward
- Model/Part Number: 9907-1197
- Description: CPC-II 25 bar, Zone 1, Simplex, Enhanced Dynamics Version, Current-to-Pressure Converter (Generation II), for Positioning Single-Acting Steam Turbine Valve Servos
Overview
- The Woodward 9907-1197 is a second-generation Current-to-Pressure Converter (CPC-II) designed for precise positioning of single-acting steam turbine valve servos/actuators. It is optimized for steam turbine valve control, offering enhanced dynamics, high accuracy, and resolution for improved turbine speed and load control. Certified for Zone 1 hazardous locations, it addresses oil contamination issues, enhancing reliability and performance in industrial applications like power generation and turbomachinery.
Technical Specifications
Specification | Details |
---|---|
Model | 9907-1197 |
Series | CPC-II (Generation II) |
Type | Electrohydraulic Current-to-Pressure Converter |
Operating Pressure | 25 bar (362.5 psi) |
Hazardous Location Rating | Zone 1 (ATEX/IECEx certified) |
Configuration | Simplex |
Input Signal | 4–20 mA |
Hydraulic Supply Pressure | 40–160 bar (580–2320 psi, depending on configuration) |
Hydraulic Fluid | Standard turbine oils, cleanliness ISO 4406 code 18/16/13 or better |
Flow Rate | Not specified (application-dependent, consult manual) |
Accuracy | ±0.5% of full scale (estimated, based on CPC-II standards) |
Resolution | High resolution for precise valve positioning |
Communication | CAN (optional for diagnostics, configuration) |
Power Supply | 18–32 VDC (estimated, based on CPC-II standards) |
Operating Temperature | -40°C to +85°C (-40°F to +185°F) (estimated) |
Storage Temperature | -40°C to +105°C (-40°F to +221°F) (estimated) |
Relative Humidity | 5% to 95%, non-condensing |
Vibration | 4 G, 5–500 Hz |
Shock | 20 G peak |
Protection Rating | IP66 (estimated, for harsh environments) |
Dimensions | Not specified (compact for turbine integration) |
Weight | Approximately 5–7 kg (11–15 lbs, estimated) |
Mounting | Direct actuator or manifold mounting |
Certifications | ATEX, IECEx, CE, UL/cUL (for Zone 1 hazardous locations) |
System Compatibility | Single-acting steam turbine valve servos, Woodward control systems |