CENTORK QUARTER TURN AND LINEAR POSITIONER CHARACTERISTICS  
  CENTORK LINEAR POSITIONERS  
  CENTORK ROTARY POSITIONERS  
  CENTORK POSITIONER OPTIONS/ACCESORIES  
  CENTORK POSITIONER APPLICATIONS  
 
CENTORK ROTARY POSITIONERS
   CENTORK ROTARY POSITIONERS, PR-720 SERIES

The quarter turn positioners control the conventional pneumatic quarter turn actuator movement according to a proportional control signal.
The PR-700 Series positioner valves are incorporated on the top of the actuator and their adaptation is simple as it has standard measures according to the namur VDI/VDE 3845 Standard. There is a variety of positioner kits to be assembled onto the actuator which enable a quick adaptation onto it.







1720.PR720: Pneumatic Linear Positioner
1721.PR721: Electro-Pneumatic Linear Positioner (4-20 mA imput signal)
1725.PR725: Electro-Pneumatic Linear Positioner (0-10 V imput signal)
1723.PR723: Electro-Pneumatic Linear Positioner
intrinsicallly safe Eexia II CT6

COMMAN CHARACTERISTICS
Main air suply 3 - 10 bar
Linearity >99% full range
Hysteresis <0,5% full range
Repetitivity < 0, 3% full range

Full range = 90 ℃
Please check corresponding technical sheets.

 
   CENTORK POSITIONERS FOR CONTROL VALVES,PR-640 SERIES

The 640 Series positioners have been designed to control the process valves with a linear movement pneumatic actuator. The positioner valve assembly is carried out on to the valve. There is an assembly kit standarised according to the Namur Standard, which enables the positioner assembly and fixing. Lever assembly to follow up control valve head 15-80mm. linear stroke. Positioner adapted onto the valve according to the Namur Standard.















1702.PR640: Pneumatic Linear Positioner
1721.PR641: Electro-Electropneumatic Linear Positionear( imput signal 4-20 mA)

COMMAN CHARACTERISTICS FOR THE 2 MODELS
Main air suply 3 - 10 bar
Linearity >99% full range
Hysteresis <0,5% full range
Repetitivity < 0, 3% full range
Recorrido actuador 15-80mm
Tipo de montaje Lever

Full range = stroke

 
   PR-700 SERIES QUARTER TURN POSITIONERS