Overview
The Flowserve Accord 51147-A is a Model 5100 I/P (current-to-pressure) transducer designed for industrial process control and valve positioning applications. This transducer receives a 4-20mA electronic signal from a DCS, PLC, or controller and converts it to a proportional pneumatic output pressure in the 30-120psi range. With a 30VDC rated power supply and 25mA current draw, it provides reliable signal conversion in chemical processing, oil & gas, pulp & paper, and energy production facilities.
Key Features
- Current-to-pressure (I/P) conversion: 4-20mA input to 30-120psi output
- 30VDC/25mA power supply specification
- Integral diaphragm-nozzle design for smooth, responsive signal conversion
- Temperature-compensated pressure regulation for consistent performance across operating conditions
- Compact, modular design compatible with Accord APEX positioner systems
- Proven reliability in high-performance industrial automation environments
Technical Specifications
The Model 5100 transducer employs a precision flapper-nozzle mechanism with an electromagnet and bias spring assembly. The output pressure is controlled by a temperature-compensated piezoresistive pressure sensor integrated into the unit, creating a closed-loop feedback system that ensures accurate setpoint tracking.
- Input Signal: 4-20mA DC (standard industrial range)
- Output Pressure Range: 30-120 psi (fully adjustable within range)
- Supply Voltage: 30VDC
- Current Draw: 25mA typical
- Operating Principle: Electromagnetic flapper-nozzle with proportional solenoid coil
- Feedback Sensor: Temperature-compensated piezoresistive pressure transducer
- Pressure Filter: Integral filter-regulator assembly
Typical Applications
- Valve positioner control loops where fast, proportional response is required
- Pneumatic actuator positioning in process control systems
- Pressure-to-position command conversion in split-range control schemes
- Chemical and petrochemical processing plant automation
- Oil & gas production and refining facilities
- Pulp & paper mill valve control
- Pharmaceutical manufacturing and utilities automation
Compatibility & Replacements
Compatible With
- Flowserve Accord APEX positioner systems (A4000, A5000, A6000, A8000, A9000)
- Accord Aviator and UltraSwitch switchbox products
- DCS, PLC, and industrial controller 4-20mA outputs
- Standard pneumatic valve and damper actuators requiring 3-15 or 30-120psi command
- Process control systems using proportional air supply
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or Flowserve technical support before ordering replacement units. Consult the original equipment documentation or contact Flowserve to confirm direct replacement capability for your specific application.
Works With
- 4-20mA analog control signals from DCS and PLC systems
- Pneumatic instrumentation and process automation standards
- Accord Controls software and commissioning tools (SoftTools)
- Standard industrial valve control loops and feedback circuits
