Woodward Current to Pressure Converter

CPC-II

Woodward's second generation current-to-pressure converters (CPC-II) 10 bar, Zone 2, redundant version with enhanced dynamics are electrohydraulic pressure regulating control valves used to position single-acting steam turbine valve servos/actuators.  The CPC-II solves one of the industries number one reliability issue of oil contamination affecting equipment uptime and performance.

 

The CPC-II accepts 4-20 mA pressure demand signals and accurately controls oil pressure to precisely position single-acting steam turbine governor-valves. Precise and stable steam valve control directly relates to improved steam turbine speed and load control and reduced system mechanical wear.

 

Features:

• Oil contamination resistant (ISO20/16)
• Precise fluid pressure control
• Stable & linear valve control
• Included valve linearization table (Full range <0.2%)
• Redundant inputs/sensors for critical applications
• Accepts signals from redundant controllers
• Redundant (dual) CPCs (Master/Slave) functionality
• Standard mounting and hydraulic connections
• Self-cleaning valve algorithm
• Status & health indication (Pressure transducer health, input demand signal health, internal unit health, Input power source quality)
• Control pressure readout
• Software service tool with trending
• Certified for North American Hazardous Locations
• Compliant with applicable CE Directives—ATEX, Machinery, PED, and EMC