Digital guide
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Detailed content
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- Input Signal: 4‑20 mA analog signal / Fieldbus digital signal
- Pneumatic Output: 0.02‑0.1 MPa standard pneumatic signal
- Supply Air Pressure: 0.4‑0.6 MPa
- Operating Temperature: ‑20 °C to +80 °C
- Functional Features: Intelligent valve position regulation, position feedback, fault self‑diagnosis, fieldbus remote configuration, partial stroke test function
- Performance Parameters: Positioning accuracy ±0.5% FS, hysteresis ≤0.3% FS
- Material Composition: Die‑cast aluminum alloy housing, stainless steel internal components, anti‑corrosion coating
- Structural Characteristics: Compact integrated structure, direct mounting on control valve actuator, modular internal components
- Working Principle: Receives control signals from DCS system, converts to pneumatic output to adjust valve opening, feeds back actual position via position sensor
- Advantages Highlights: High‑precision positioning, intelligent fault diagnosis, remote parameter adjustment, explosion‑proof safety design
- Applicable Industries: Petrochemical, oil and gas transmission, chemical industry, power plant pipeline control
- Installation Requirements: Direct mounting on valve actuator, connect clean dry instrument air, comply with explosion‑proof installation standards
- Usage Precautions: Use filtered instrument air; regularly check air supply pipeline leakage; conduct periodic valve stroke calibration
