ControlAir introduces new valve positioner

ControlAir, a leading manufacturer of precision pneumatic and electro-pneumatic control products, expanded their product portfolio with the launch of a new line of valve positioners. The new Type-2000 Pneumatic and Electro-Pneumatic Valve Positioners are designed to provide stable and accurate control of rotary and linear valves. These force-balanced devices are operated with cam-characterised air-pressure-control utilising a low-friction spool valve to drive rotary and linear pneumatic actuators accurately.
ControlAir’s base pneumatic version of the Type-2000 operates on a 3-15 psig (0.2-1.0 bar) instrument signal supplied to the positioner to achieve a required valve output. Mechanical feedback via a cam is linked to a spool valve that loads the actuators for positioning, and self-corrects where necessary. A modular build concept allows the pneumatic unit to be field-converted quickly to a fully optioned electro-pneumatic unit.

The Type-2000 Electro-Pneumatic Positioner receives a 4–20mA input signal, and uses an integral I/P transducer to convert the input signal to a pneumatic output. Mounted internally to the positioner, housing the ControlAir Type-590X I/P Transducer module provides intrinsically safe operation. The positioner can also be ordered with the ControlAir Type-595XP Explosion-Proof I/P mounted to the housing. Either version is available with Factory Mutual (FM), Canadian Standards Association (CSA) or ATEX hazardous area approvals. The positioner is vibration-, position- and shock-insensitive.

The positioners are available for rotary or linear actuation: single- and double-acting. The unit accepts standard Namur mounting for rotary actuators. Multiple cam and spindle configurations are available.
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