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Woodward 9907-1200 CPC‑II Current‑to‑Pressure Converter--KIMI
- Warehouse: Spot
- Warranty： 365 days
- Quality: Original module
- Condition： New
- Shipping method: Courier delivery
- Contact person: LI MING
- Contact number: +86 18059884790
- WeChat：18059884790
- E-mail: plc66@qq.com
Product Description
Woodward 9907-1200 CPC‑II Current‑to‑Pressure Converter
Electro‑Hydraulic Pressure Control for Steam/Gas Turbine Valve Actuation
1. Product Overview
The Woodward 9907-1200 is a CPC‑II Current‑to‑Pressure Converter, an electro‑hydraulic control device designed for precise valve actuation in steam and gas turbines. It converts 4-20 mA current signals into proportional hydraulic pressure to position single‑acting turbine control valves, integrating an internal pressure sensor and PID controller for closed‑loop regulation. With redundant input capability, failsafe spring return, and robust construction, it ensures reliable operation in power generation, oil & gas, and industrial process industries, delivering accurate pressure control and safe valve closure during system failures.
2. Key Technical Specifications
• Product Type: Current‑to‑Pressure Converter (CPC‑II)
• Brand & Model: Woodward 9907-1200 (CPC‑II Series)
• Input Signal: 4-20 mA DC (Current Demand Signal, 2-Wire)
• Output Pressure Range: 0.3-1.0 MPa (43.5-145 psi, Adjustable)
• Supply Voltage: 24 VDC (Nominal, ±10% Tolerance)
• Supply Air Pressure: 1.4 MPa (203 psi, Max.)
• Current Consumption: 200 mA Max. (24 VDC)
• Response Time: ≤ 0.5 s (90% Step Response)
• Operating Temperature: -40°C to +70°C (-40°F to +158°F)
• Storage Temperature: -40°C to +85°C (-40°F to +185°F)
• Accuracy: ±0.5% of Full Scale Output Pressure
• Dimensions (L×W×H): 163 × 38 × 58 mm (6.42 × 1.50 × 2.28 in)
• Weight: 30 kg (66.14 lbs)
• Protection Class: IP54 (NEMA 4)
• Certifications: CE, UL, ISO 9001
3. Core Features
• Current‑to‑Pressure Conversion: 4-20 mA Signal to 0.3-1.0 MPa Pressure for Valve Positioning.
• Closed‑Loop Regulation: Internal Pressure Sensor & PID Controller Ensure ±0.5% Accuracy.
• Redundant Input: Configurable for Dual 4-20 mA Inputs (Controller Redundancy).
• Failsafe Mechanism: Internal Spring Return to Failsafe Position on Power/Air Loss.
• Robust Design: IP54 Protection for Dust & Water Resistance in Industrial Environments.
• Easy Calibration: Zero & Span Adjustment via Front‑Panel Screws.
• Status Monitoring: LED Indicators for Power, Signal, and Fault Alarms.
• Mounting: Bracket Mount (Torque: 8 Nm for Mounting Bolts)
4. Typical Applications
• Steam Turbines: Control of Single‑Acting Governor Valves (Speed & Load Regulation).
• Gas Turbines: Fuel Control Valve Positioning (Combustion System Optimization).
• Power Generation: Boiler Feedwater Valve Control (Pressure & Flow Regulation).
• Oil & Gas: Compressor Anti‑Surge Valve Control (Process Stability).
• Petrochemical: Refinery Process Valve Actuation (Temperature & Pressure Control).
• Marine: Ship Propulsion Turbine Valve Control (Vessel Speed Management).
5. Installation & Maintenance
• Mounting: Bracket Mount with 8 Nm Torque; Ensure Vertical Orientation for Air Drainage.
• Wiring: Connect 24 VDC Power, 4-20 mA Signal, and Shielded Cable (2.5 mm² Max.).
• Pneumatic Connections: Use 1/4" NPT Fittings for Supply Air & Output Pressure.
• Calibration: Adjust Zero/Span Screws to Match 4-20 mA Input with 0.3-1.0 MPa Output.
• Maintenance: Replace Air Filter Every 6 Months; Check O‑Rings for Leaks Annually.
• Troubleshooting: Use Multimeter to Verify 4-20 mA Signal & 24 VDC Power; Check Air Supply Pressure.
• Safety Guidelines: Isolate Power & Air Supply Before Servicing; Use PPE for High‑Pressure Lines.
Technical Document | Woodward 9907-1200 | CPC‑II Current‑to‑Pressure Converter | Turbine Valve Control Systems
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