Product Overview
The FAIRCHILD 80551 is a precision electro-pneumatic transducer engineered to convert a variable electrical input signal into a proportional pneumatic output pressure. Manufactured by Fairchild Industrial Products, a recognized authority in precision pneumatic control, this model serves as a critical signal interface within process control loops, enabling electronic controllers, PLCs, and DCS systems to directly command pneumatic actuators, positioners, and final control elements. The 80551 utilizes a force-balance, closed-loop feedback mechanism in which an electromagnetic coil reacts against a calibrated range spring to modulate a pneumatic relay, delivering stable, repeatable output pressure proportional to the input signal. Its compact, field-serviceable design makes it a preferred solution for demanding industrial environments requiring accurate electrical-to-pneumatic signal conversion.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electro-Pneumatic Transducer (Process & Pneumatic Valve Accessory) |
| Model Designation | FAIRCHILD 80551 |
| Operating Pressure | Standard Industrial Grade (pneumatic supply up to rated bar, output proportional to input signal) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (pipe or panel mount with threaded pneumatic ports and electrical conduit entry) |
Engineering Features & Advantages
- Precision Signal Conversion: Force-balance feedback architecture delivers highly accurate, repeatable electrical-to-pneumatic conversion with minimal hysteresis and deadband, ensuring tight process control.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with rugged housing and stable performance across fluctuating supply pressures and ambient temperatures.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Fairchild 80551 standards, allowing drop-in replacement without modification to existing pneumatic loops.
Typical Industrial Applications
The FAIRCHILD 80551 electro-pneumatic transducer is widely deployed in process industries where electronic control signals must drive pneumatic final elements. Typical applications include valve positioner and actuator control in chemical and petrochemical processing, pneumatic damper and louver actuation in power generation and HVAC systems, proportional pressure control in food and pharmaceutical processing lines, and signal interfacing for pneumatic control loops in pulp, paper, and water treatment facilities.
PRODUCT IMAGES
FAIRCHILD 80551 Electro-Pneumatic Transducer
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine FAIRCHILD 80551 Electro-Pneumatic Transducer. This USA-made high-precision component features a reliable I/P conversion mechanism, delivering leak-free, accurate pressure control for heavy-duty industrial systems.