“Valve Automation Company”
Manufacturer of Valve Automation Products for Controlling Actuators, Pneumatic Cylinders and Pneumatic Control Valves. Valve Automation Solutions Provider for Critical Industrial Processes. Technical Manuals on I/P Transducers, Electro Pneumatic Positioners, Valve Positioners and Limit Switches. Contact for Valve Automation Company, USA.
Series 300FC Limit Switches for Rotary Quarter Turn Actuators.
  Limit Switches
Series 300 / 301
(small) FC
Limit Switches
Series 400 FC
Limit Switches
Series 300 / 400 FC
I/P Transducers
Series 500FC
I/P Transducers
Series 600FC
  Electro-Pneumatic Positioners
Series 700FC
Valve Positioners
Series 800FC
  Smart Positioner 900FC
Download I/P Transducers Series 600 FC
  I/P Transducers Series 600 FC



The Flucon FC600 Explosionproof I/P (current to pressure) transducer converts a 4–20mA electrical current signal to a proportionally linear pneumatic output. The unique conversion technology utilizing open loop control provides a high level of accuracy and repeatability for the operation of actuated valves. A low mass control circuit provides consistent output in high vibration applications. This compact unit is housed in an explosion proof enclosure that is designed for pipe, bracket or direct manifold mounting. This explosion-proof and intrinsically safe field device is available with an integral volume booster or as a low-flow signal converter that directly mounts to a pneumatic valve positioner.

Series 300 FC Limit Switch.
    Principle of Operation

The input current flows through the coil thereby magnetizing the soft-iron yoke. The flux lines of this system being exposed at the gap apply a force proportional to the input signal on the permanent magnet which is made from a highly coercive metal .

The small magnet together with the flapper forms the moving parts, controlling the air pressure at the nozzle, which is proportional to the magnetic force. The air flowing from the nozzle forms a restoring force balanced by the force applied to the magnet.

The nozzle is supplied with air through a throttle. And back pressure through power amplifier gives proportional output. The described units are properly matched, Hance, a linear correspondence of electric input and pneumatic output signals is achieved.

The direction of action of the converter is determined by the coil polarization.

Zero adjustment is made by twisting the tensioning band, on which the flapper is mounted.

Range adjustment is performed using the potentiometer connected with a resistor in parallel to the coil.

The Flucon 600 FC series transducers can be pipe, panel or bracket mounted in any position. Position other than vertical will require recalibration of the zero


 Integrated Characteristic

Compact Design.
Low Air Consumption.

Low Power Consumption.

Integral Volume Booster.

Flexible Adjustments of Zero & Span.

Standard Process Inputs.

Vibration and Position Insensitive.
Unit can be mounted in any plane and is stable in high vibration environment.
Safety Approvals : Factory Mutual (FM), Canadian Standard Association(CSA) and ATEX.
<< I/P Transducers Series 500FC Electro-Pneumatic Positioners
Series 700FC >>
  Download I/P Transducers Series 600 FC