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Digital Valve Positioner Flowserve 520MD Industrial Pneumatic Control Valve

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US $1500.00 - 1700.00/ Set
Price
Digital Valve Positioner Flowserve 520MD Industrial Pneumatic Control Valve
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Features
Specifications
Product Name: Flowserve 520MD Digital Valve Positioner
Humidity: 0-100% Non-condensing
Voltage Supply (maximum): 30 VDC
Weight Of Valve Positioner: 3.5 Kg
Repeatability: < 0.25%
Minimum Required Operating Current: 3.6 MA
Input Signal Range: 4 - 20 MA HART
Input Pressure Range: 1.5 To 6.0 Bar
Highlight:

520MD Digital Valve Positioner

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Industrial Pneumatic Control Valve
Basic Infomation
Brand Name: Flowserve
Model Number: 520MD
Payment & Shipping Terms
Delivery Time: 60-90 working days
Payment Terms: T/T
Product Description
Digital Valve Positioner Flowserve 520MD Industrial Pneumatic Control Valve
Product Specifications
Attribute Value
Product Name Flowserve 520MD Digital Valve Positioner
Humidity 0-100% Non-condensing
Voltage supply (maximum) 30 VDC
Weight of valve positioner 3.5 kg
Repeatability < 0.25%
Minimum required operating current 3.6 mA
Input signal range 4 - 20 mA HART
Input pressure range 1.5 to 6.0 bar
Product Overview

The Flowserve 520MD Digital Valve Positioner, paired with the 47-W1D201-GM3-0000 pneumatic control module, delivers ultra-precise valve control for industrial automation. Engineered with SIL 3 certification and HART/Foundation Fieldbus communication, it ensures reliable performance in critical processes.

Key Features
  • High-Precision Accuracy: ±0.25% full-scale precision for tight process control.
  • Multi-Protocol Support: HART and Foundation Fieldbus compatibility.
  • Rugged Construction: Stainless steel 316 housing with IP67/NEMA 4X protection.
  • SIL 3 Certification: Meets stringent safety standards for hazardous environments.
  • Adjustable Output: 0.3-1.4 bar pressure range for flexible valve actuation.
Technical Parameters
Parameter Value
Model Flowserve 520MD Series
Control Type Digital Valve Positioner
Input Signal HART, Foundation Fieldbus
Output Pressure 0.3-1.4 bar (Adjustable)
Accuracy ±0.25% FS
Protection Class IP67/NEMA 4X
Material Stainless Steel 316
Temperature Range -50°C to +120°C
Power Supply 24V DC
Communication Digital Diagnostics
Certification SIL 3, ATEX, IECEx
Configuration 520MD+47-W1D201-GM3-0000
Industrial Applications
  • Oil and gas refining
  • Chemical plant automation
  • Power generation systems
  • Pharmaceutical manufacturing
  • Cryogenic processing
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

D
Daulet Nurgazin
Kazakhstan Mar 19.2026
Helpful (3)
I purchased the Flowserve 3821 and am very satisfied with the overall transaction. The item arrived in good condition, matched the specifications accurately, and performed as expected. The seller demonstrated strong professionalism, provided a reasonable price, and ensured the delivery schedule was met. A dependable supplier that I would confidently work with again.
L
leyla kh
United Arab Emirates Sep 12.2025
Helpful (10)
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
Helpful (6)
Happy to work with them, fast response, hope to do more business with them soon
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Contact Person : Mr. Edward Zhao
Tel : +8615000725058
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edward.zhao@gongboshi.com
+8615000725058
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