Emerson

The Emerson Ovation 1C31194G01 is a VALVE POSITIONER module used in Emerson’s Ovation distributed control system (DCS), primarily in power generation and process industries.

Key Specifications

Feature	Details
Input Signal	4-20 mA (analog control signal from Ovation DCS)
Output Signal	Pneumatic (3-15 psi or 20-100 kPa) to valve actuator
Supply Air	20-100 psi (1.4-6.9 bar) clean, dry air
Accuracy	±0.5% of span
Enclosure	NEMA 4X (weatherproof & corrosion-resistant)
Mounting	Directly mounted on linear or rotary valves

• Manufacturer: Emerson (formerly Westinghouse)
• Model: 1C31194G01
• System Compatibility: Ovation DCS (for turbine & boiler control in power plants)
• Type: Electro-pneumatic valve positioner
• Primary Use: Controls valve actuators (e.g., steam turbine governor valves, feedwater control valves)

Functionality

• Converts electrical signals (4-20 mA) from the Ovation DCS into pneumatic pressure to move valves.
• Provides closed-loop feedback to ensure precise valve positioning.
• Supports fail-safe modes.

Applications

• Power Plants:
  • Steam turbine control valves
  • Boiler feedwater regulation
  • Bypass valve positioning
• Oil & Gas:
  • Pipeline flow control
  • Pressure regulation valves

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