Specification of FISHER Pneumatic Valve Potisioner 3570
Manufacturer : Fisher
Control Valve
Product No. : 3570
Product type : Pneumatic Valve Positioners
3570 — Pneumatic valve positioner with two relays for use with Fisher 470 and 480 pneumatic piston actuators
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.
Input Signal Standard Ranges: 0.2 to 1.0 bar (3 to 15 psig) or 0.4 to 2.0 bar (6 to 30 psig)
Resolution : 0.2% of instrument pressure span
Repeatability : 0.3% of total stroke or instrument pressure span
Pressure Connections = Vent: 3/8 NPT, All others: 1/4 NPT