Model T5700 Electro-Pneumatic Transducer from Rotork Fairchild

Model T5700 Electro-Pneumatic Transducer from Rotork FairchildModel T5700 is an electro-pneumatic transducer that converts a current signal to a linear pneumatic output, using a force balance system with a flapper and the nozzle to control the pressure in the intermediate housing. Its low droop under flow conditions, allows improved control of downstream pressure.

Operating Principles

The Model T5700 is an electro-pneumatic device that converts a current signal to a linear pneumatic output. This device uses a force balance system in which a built-in supply regulator also functions as a pneumatic amplifier. Together, the flapper and the nozzle work to control the pressure in the intermediate housing. This pressure acts on a diaphragm assembly, which in turn controls the output pressure.

Features

Model T5700 Electro-Pneumatic Transducer Features

  • Low droop under flow conditions - allows for improved control of downstream pressure
  • Immune to supply pressure change - permits use of normal plant air
  • Minimal air use in dead-end service (.05 SCFM) - reduces air consumption and cost
  • High forward and exhaust capacity - permits increased process speed
  • Output may be directly or inversely proportional to the input - meets a variety of application needs
  • Split range operation - permits two or more functions to be controlled from a common signal source
  • Built-in supply pressure regulator eliminates the need for a separate regulator
  • Wall or panel mounting allows for convenient installation

Specifications

Model T5700 Electro-Pneumatic Transducer Specifications

  • Output Range: 3-15 psig, [0.2-1.0 BAR], (20-100 kPa)
  • Supply Pressure: 18-150 psig, [1.2-10.0 BAR], (120-1000 kPa)
  • Flow Capacity (SCFM):
    • 17 (28.9 m3/HR) for 20 psig, [1.4 BAR], (140 kPa)
    • 47 (79.9 m3/HR) for 120 psig, [8.0 BAR], (800 kPa)
  • Exhaust Capacity (SCFM): over 9 (15.3 m3/HR) for downstream pressure 5 psig, [.035 BAR], (.35 kPa) above setpoint
  • Maximum Air Consumption: 0.05 (.08 m3/HR) with 20-120 psig, [1.5-8.0 BAR], (150-800 kPa) supply
  • Temperature Range: -40°F to +150°F, (-40°C to +65°C)
  • Materials of Construction
    • Housing: Aluminum
    • Orifice: Sapphire
    • Diaphragm: Buna N Dacron Fabric

Dimensions

Model T5700 Electro-Pneumatic Transducer Dimensions

Rotork Fairchild Model T5700 Electro-Pneumatic Transducer Dimensions

Q & A

Q&A Section with Expand/Collapse Icons

Model T5700 Electro-Pneumatic Transducer Q & A

+ What is the Rotork T5700 transducer used for?
The T5700 is a high-flow electro-pneumatic (I/P or E/P) transducer that converts electrical signals into precise pneumatic output. It is ideal for industrial control systems, driving pneumatic actuators or valves, and ensuring stable and accurate pressure control in complex automation applications.
 
+ What are the key specifications of the T5700?
The T5700 supports configurable output pressure ranges and high flow capacity, with minimal air consumption in low-flow or dead-end service. It converts electrical control signals to pneumatic output with either direct or inverse proportionality and can be mounted on walls or panels, offering flexibility for various industrial setups.
+ Can the T5700 handle variable air supply conditions?
Yes. The T5700 includes a built-in supply pressure regulator, allowing it to maintain consistent pneumatic output even when plant air pressure fluctuates. This makes it reliable for industrial environments with inconsistent air supply.
 
+ How efficient is the T5700 in operation?
The T5700 is designed for efficiency and performance. It consumes very little air in low-flow conditions while providing fast response and stable output under changing process demands. Its high forward and exhaust capacity ensures minimal pressure droop, making it ideal for both continuous and intermittent applications. 
 
 
+ How do I know if the T5700 is compatible with my system?
To ensure compatibility, consider mounting space, output pressure, and flow requirements, and your control system’s signal type. The T5700 supports direct or inverse output signals and wall or panel mounting. Check air quality and environmental conditions for your installation, and consult the manufacturer if extreme conditions are present.
 


 

Downloads

Download Rotork Fairchild Model T5700 High Flow E/P, I/P Pressure Transducer Datasheet

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