Technical Specifications Electric signal input, proportional pneumatic pilot signal output. Instrument air supply pressure 1.4‑7 bar. Operating temperature ‑40 ℃ to +85 ℃. Weight approximately 0.21 kilogram.
Functional Features Converts electrical control signal into proportional pneumatic pilot pressure. Delivers stable pilot signal to downstream pneumatic amplifier. Compact structure fits limited internal space of positioner. Built‑in impurity filtering structure.
Application Scenarios Replacement spare‑part for ABB intelligent valve positioners. Applied in petrochemical, power and chemical industrial field control valve maintenance.
Performance Parameters High linearity between input electric signal and output pilot pressure. Fast signal conversion response. Resists minor particle pollution from instrument air.
Material Composition Aluminum alloy valve block body. Precision electromagnetic‑pneumatic conversion components, rubber sealing parts, filter assembly.
Structural Characteristics Integrated block‑shaped structure. Equipped with electric signal interface, air supply inlet and pneumatic pilot output port. Reserved fixing holes for internal mounting.
Working Principle Electric drive signal from positioner control board acts on internal electromagnetic‑pneumatic conversion component. Instrument air is adjusted to corresponding proportional pilot pressure. Pilot pressure is sent to subsequent pneumatic amplifier module for further flow amplification.
Installation Requirements Shut off instrument air supply and control signal power before replacement. Install VP01 module inside positioner housing and tighten fasteners. Confirm pneumatic ports and electric connectors are well connected. Restore air supply and signal power. Execute full automatic positioner calibration.
Usage Notes Keep instrument air clean and dry. Prevent mechanical collision to internal precision components. Complete auto‑calibration after each replacement. Inspect sealing condition in periodic overhaul.
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