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Flowserve Logix 520MD Digital HART Fieldbus Diagnostics Valve Controller Smart Valve Positioner Supplier

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Flowserve Logix 520MD Digital HART Fieldbus Diagnostics Valve Controller Smart Valve Positioner Supplier

Brand Name : Flowserve

Model Number : 520MD

MOQ : 1

Price : US $1550.00 - 1800.00/ Set

Payment Terms : T/T

Supply Ability : 2000 sets per year

Delivery Time : 6-8 weeks

Packaging Details : Cardboard box/Wooden crate

Operating Temp. Range : -40°C to +85°C

Communication Protocol : HART (optional)

Repeatability : ≤0.5%

Enclosure Protection : IP66 / NEMA 4X

Air Consumption : Low consumption design

Stroke Range : Linear: 3 - 100 mm / Rotary: 30° - 100°

Supply Pressure : 1.4 - 7 bar (20 - 100 psi)

Input Signal : 4-20 mA

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Flowserve Logix 520MD Digital HART Valve Positioner
Product Overview

The Flowserve Logix 520MD digital positioner provides reliable control for pneumatic actuators using HART protocol and piezo technology. It is designed for easy local configuration and offers solid repeatability with low steady-state air consumption. Many users appreciate its balance of features and simplicity for everyday valve positioning in process plants.

Technical Specifications
Parameter Specification
Input Signal 4–20 mA DC
Communication HART
Supply Air Pressure 1.5–6.0 bar
Air Consumption 0.08–0.12 Nm³/h (steady state)
Output Capacity Up to 7.0 Nm³/h @ 6 bar
Linearity < ±1.0% FS
Repeatability < 0.2% FS
Operating Temperature –40 °C to +80 °C
Enclosure IP66 / NEMA 4X
Housing Aluminum
Application Industry
  • Chemical processing
  • Power plant utilities
  • Oil & gas facilities
  • General manufacturing
  • Petrochemical auxiliary systems
Common Problems & Solutions
  • Problem: High air usage in steady state → Solution: Low consumption piezo design
  • Problem: Tuning for different valve sizes → Solution: Auto-tune and local gain adjustment
  • Problem: Exposure to harsh conditions → Solution: Robust enclosure and proven reliability
Replacement Models
  • Legacy Flowserve positioners
  • Logix 3200MD when intrinsic safety is not required
Why Buy From Us
  • Authentic Flowserve product
  • Good value and warranty coverage
  • Support for installation and basic diagnostics
  • Reliable spare parts supply
Stock & Delivery Time
  • Common models: 6–8 weeks
  • Configured versions: 8–10 weeks
RFQ Form

Please provide:

  • Valve and actuator details (type and travel)
  • Available air supply pressure
  • Area classification requirements
  • Any special options needed
  • Quantity and delivery schedule

Product Tags:

Flowserve Logix 520MD valve controller

      

HART Fieldbus smart positioner

      

pneumatic control valve diagnostics

      
Quality Flowserve Logix 520MD Digital HART Fieldbus Diagnostics Valve Controller Smart Valve Positioner Supplier for sale

Flowserve Logix 520MD Digital HART Fieldbus Diagnostics Valve Controller Smart Valve Positioner Supplier Images

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