Positioner Exporter
AFL Group is a leading positioner exporter located in Shanghai area of China. The ALP series valve positioner is designed and manufactured by AFL Group based on the design ideas of block structure, multi-port function and the advanced technology of explosion proof. The ALP series mechanical positioners including P-P (pneumatic to pneumatic) one and E-P (electric to pneumatic) one are all suitable both for linear and rotary control valve. The E-P positioner controls valve stroke accurately, through pressure air, according to input signal of 4-20mA. The P-P positioner controls valve stroke accurately, through pressure air, according to input signal of 3-15psi. As for E-P positioner, the internal limit switches or internal valve position transmitter is available for choice. The ALP series valve positioners are provided with following advanced features:
-There is no resonance to the operation of positioner in the range of 5~200Hz.
-Performing 1/2 Split Control without any other substitutes.
-Easy to adjust zero and span.
-Easy to convert from Reverse Action to Direct Action or vice versa.
-Easy to convert from Spring Return to Double Action actuator or vice versa.
-Easy Feedback Connection and meeting the standard of ISO5211 or Namur.
-Fast and accurate response.
-Low air consumption.
-Easy to protect from hunting effect by using output orifice.
