The PNEUCON PNEUMATIC VALVE POSITIONER is an instrument working on force balance principle to position the Control Valve stem in accordance to a pneumatic signal received from a controller or manual loading station, regardless of packing box friction, actuator hysteresis or unbalanced forces on the valve plug. Thus, the positioner ensures a reliable and accurate operation of Control Valve. NON-STANDARD CONTROLLER OUTPUT :The positioner is used to operate a valve with 3-15 psi spring range when controller signal is other than 3 15 psi.NON-STANDARD ACTUATOR SPRING RANGE :The positioner is used to operate valves Having non standard actuator spring ranges by controllers having the standard 3-15 psi Signal pressure.REMOTE VALVE LOCATION :When air operated control valves are located far from control Instrument, positioners will reduce lag, thereby speeding up valve operation.SPLIT RANGE :Some processes require the dual or sequential operation of two to three Control valves by a single controller with a 3-15 psi output signal range.