Description

Metso PDP403‑C Digital Positioner

Technical Specifications

• Product Model: PDP403‑C
• Brand: Metso
• Warranty: One Year
• Input Voltage: 24 V DC, 18‑30 V DC operating range
• Operating Temperature: ‑40 °C ~ +85 °C
• Storage Temperature: ‑55 °C ~ +100 °C
• Response Time: Valve positioning response <0.8 s
• Protection Class: IP66 field‑mount aluminum housing
• Accuracy Class: ±0.5 % FS valve‑positioning grade
• Output Frequency: Not applicable
• Rated Current: Max 120 mA @24 V DC
• Input Signal: 4‑20 mA control signal; HART communication supported
• Valve Actuator Compatibility: Pneumatic linear / rotary valve actuators
• Feedback: Integrated valve‑position sensor, local LCD display
• Diagnostics: Valve‑stroke deviation, supply‑air fault, electronic‑unit self‑diagnostics
• Mounting: Direct‑mount on valve actuator according to IEC 60534‑6‑1
• Certifications: CE, ATEX, IECEx, FM hazardous‑area approvals
• Humidity: 5‑95 % RH, non‑condensing
• Weight: 1.45 kg
• Dimensions: 148 × 132 × 102 mm
• 

Product Overview

PDP403‑C is a smart digital valve positioner manufactured by Metso, designed for pneumatic control valves in process industries. It receives 4‑20 mA set‑point signal from DCS/PLC and precisely regulates pneumatic output pressure to drive valve actuator for accurate valve‑stroke positioning. Built‑in HART protocol supports remote parameter configuration, calibration and valve‑health diagnostics. Rugged IP66 aluminum housing adapts to harsh outdoor and hazardous‑area plant environments. Available as refurbished and new‑old‑stock spare parts for petrochemical‑plant, refinery control‑valve maintenance projects.

Application Notes

‑ Match mounting bracket to target valve actuator model during installation. ‑ Perform auto‑calibration after mechanical installation to acquire full‑stroke parameters. ‑ Follow hazardous‑area installation specifications for explosive‑zone applications. ‑ Typical deployment: refineries, chemical‑plants, pulp‑and‑paper mills control‑valve spare‑part stocking.