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The Woodward 8701-758 5601-1126 Replacement Current to Pressure Converter is an electro-pneumatic (I/P) signal converter in the Woodward industrial control product line, which converts a 4–20 mA current signal into a proportional pneumatic control pressure for valve positioning in turbine / engine fuel or steam control systems.
Key Features
- Current-to-pressure (I/P) conversion for valve / servo positioning
- Converts a 4–20 mA control signal into a proportional pneumatic output pressure (3–15 psi class)
- Used in turbine, engine, and industrial fuel / steam valve control applications
- Supply from 24 V DC control loop
- Span adjustment available on unit
- Woodward legacy product line; USA origin
Technical Specifications
- Part Numbers: 8701-758 / 5601-1126
- Product Type: Current to Pressure Converter (I/P)
- Input Signal: 4–20 mA
- Output Pressure: 3–15 psi (standard pneumatic range)
- Accuracy: ±0.1% FS
- Response Time: <10 ms
- Power Supply: 24 V DC
- Operating Temperature: -40…+85 °C
- Adjustments: Span adjustment
- Origin: United States
Installation Notes
- Verify the unit’s actual function, input/output ranges, and wiring against the host system’s parts list before installation.
- De-energize the control loop before wiring; connect the 4–20 mA signal and supply per the nameplate.
- Connect the pneumatic output to the valve actuator per the system schematic; observe correct pressure ratings.
- After commissioning, verify the output pressure tracks the input current (span check) before returning the unit to service.
Common Questions
What does this converter do? Per the market description, it converts a 4–20 mA current signal into a proportional pneumatic pressure to position a valve or servo in a turbine/engine control system.
Is 5601-1126 the same part as 8701-758? They are listed together as a single assembly (8701-758 / 5601-1126) by multiple suppliers; some listings also present 5601-1126 alone. Confirm the exact configuration against your system’s parts list.
What pressure range does it output? Market data indicates the standard 3–15 psi pneumatic range — verify against the nameplate before use.
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