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Flowserve Logix 520MD Digital HART Pneumatic Actuator Oil Gas Petrochemical Valve Positioner Price

1
MOQ
US $1000.00 - 1200.00/ Set
Price
Flowserve Logix 520MD Digital HART Pneumatic Actuator Oil Gas Petrochemical Valve Positioner Price
Features Gallery Product Description Ratings & Review Request A Quote
Features
Specifications
Input Signal: 4-20 MA
Supply Pressure: 1.4 - 7 Bar (20 - 100 Psi)
Operating Temperature: -40°C To +85°C
Enclosure Protection: IP66 / NEMA 4X
Repeatability: ≤0.5%
Communication Protocol: HART (optional)
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Flowserve Logix 520MD pneumatic actuator

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HART digital valve positioner

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oil gas petrochemical control valve

Basic Infomation
Brand Name: Flowserve
Model Number: 520MD
Payment & Shipping Terms
Packaging Details: Cardboard box/Wooden crate
Delivery Time: 6-8 weeks
Payment Terms: T/T
Supply Ability: 1800 sets per year
Product Description
Flowserve Logix 520MD Digital HART Valve Positioner
Product Overview

The Flowserve Logix 520MD is a digital HART positioner that uses piezo technology for accurate control of pneumatic actuators on linear and rotary valves. It accepts a standard 4–20 mA input signal and provides reliable positioning with local calibration via buttons. Many plants choose it for its low steady-state air consumption, straightforward setup, and solid performance in general process applications.

Technical Specifications
Parameter Specification
Input Signal 4–20 mA DC (two-wire)
Communication HART (5, 6, 7)
Supply Air Pressure 1.5–6.0 bar (22–87 psig)
Air Consumption (steady state) 0.08 Nm³/h @ 1.5 bar to 0.12 Nm³/h @ 6.0 bar
Output Capacity Up to 7.0 Nm³/h @ 6.0 bar
Linearity < ±1.0% FS typical
Repeatability < 0.2% FS
Deadband < 0.2% FS
Operating Temperature –40 °C to +80 °C
Enclosure Rating IP66 / NEMA 4X
Housing Material Aluminum (standard)
Application Industry
  • Chemical and petrochemical processing
  • Power generation utilities
  • Oil & gas facilities
  • General industrial valve control
  • Refineries and auxiliary systems
Common Problems & Solutions
  • Problem: Contaminated or wet air affecting performance → Solution: Use clean, dry instrument air per ISA-7.0.01
  • Problem: Initial setup and tuning → Solution: Simple local buttons for QUICK-CAL and auto-tune
  • Problem: High vibration environments → Solution: Robust design with proven reliability
Replacement Models
  • Older Flowserve Logix 3000 series
  • Logix 3200MD when intrinsic safety is not required
Why Buy From Us
  • Genuine Flowserve Logix product with warranty
  • Competitive pricing for standard applications
  • Practical support for installation and calibration
  • Access to common spare parts
Stock & Delivery Time
  • Standard configurations: 6–8 weeks typical
  • Special certifications or options: 6–10 weeks
RFQ Form Please provide:
  • Actuator type (linear or rotary) and travel range
  • Available supply air pressure
  • Hazardous area classification (if needed)
  • Housing material preference
  • Quantity & target delivery date
Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

A
Alex
Switzerland Dec 1.2025
great price and fast delivery
L
leyla kh
United Arab Emirates Sep 12.2025
We purchased 20 units of valve positioners for a refinery project in UAE. Delivery was fast and technical support was very professional.
Z
zahir mustafa
United States Feb 26.2025
Happy to work with them, fast response, hope to do more business with them soon
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Get in touch with us
Contact Person : Mr. Edward Zhao
Tel : +8615000725058
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