Fisher® 3570 pneumatic valve positioners are used with control valve assemblies to provide an accurate valve stem position that is proportional to the input signal received from a control device. The input signal range can be 0.2 to 1.0 bar (3 to 15 psig), 0.4 to 2.0 bar (6 to 30 psig), or another pneumatic input signal range, as required. These positioners are normally used with pneumatic piston actuators. However, product types within the 3570 Series can be used with pneumatic, long-stroke, cylinder actuators or with pneumatic diaphragm actuators.


Features & Benefits
Rangeability - The 3570 Series positioner provide split range capabilities.
Control Valve Diagnostic Testing Capability - To support diagnostic testing of valve/actuator/positioner packages with the FlowScanner valve diagnostic system, connectors, piping, and other hardware can be installed between the 3570 Series positioner and the actuator.
Versatility - These positioners are normally used with pneumatic piston actuators. However, product types within the 3570 Series can be used with pneumatic, long-stroke, cylinder actuators or with pneumatic diaphragm actuators.

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  Fisher 480 Series Yokeless Piston Actuators
  345 KB
  美国