Factory Original Flowserve Logix 520MD+37-W1r300-000 Digital Valve Positioner

• Customization: Available
• Product Name: Logix 520MD+37-W1r300-000 Digital Valve Positioner
• Model Number: 520MD+37-W1r300-000 (Varies by Configuration)
• Model NO.: Flowserve Logix 520MD Valve Positioner
• Primary Function: Digital Valve Positioner for Pneumatic Actuators
• Measurement Range: 0–100% Valve Travel (Linear or Rotary Valves
• Output Signal: 4–20 Ma + Hart® 7 Protocol
• Pneumatic Output: 20–100 Kpa (3–15 Psi) or 40–200
• Accuracy: ±0.5% of Span
• Actuator Compatibility: Linear or Rotary Pneumatic Actuators
• Material: Aluminum Alloy, Stainless Steel, Brass
• Process Connections: Flanged (ANSI, DIN, JIS), Threaded (NPT, Bsp)
• Certifications: ATEX, Iecex, FM, CSA, Sil 2, RoHS, CE
• Environmental Rating: IP66/NEMA 4X (Dust/Water Resistant)
• Temperature Range: -40°c to +85°c (-40°f to +185°f)
• Power Supply: 10.5–40 VDC (Loop-Powered or External)
• Mounting Standard: IEC 60534-6 (Vdi/VDE 3845) Direct-Mount Interface
• Transport Package: Support Air/Land/Sea Transportation
• Specification: 40cm*30cm*30cm*
• Trademark: Flowserve Logix
• Origin: China
• HS Code: 7318190000
• Production Capacity: 1000
• Package Size: 35.00cm * 35.00cm * 30.00cm
• Package Gross Weight: 2.000kg

Product Description

Products Picture

Specification

Flowserve Logix 520MD+37-W1R300-000 Digital Valve Positioner
Parameter	Specification
Product Name	Logix 520MD+37-W1R300-000 Digital Valve Positioner
Model Number	520MD+37-W1R300-000 (varies by configuration)
Primary Function	Digital valve positioner for pneumatic actuators with HART protocol
Measurement Range	0–100% valve travel (linear or rotary valves)
Output Signal	4–20 mA + HART® 7 Protocol
Pneumatic Output	20–100 kPa (3–15 psi) or 40–200 kPa (6–29 psi)
Accuracy	±0.5% of span (±0.1% optional high-accuracy variant)
Actuator Compatibility	Linear or rotary pneumatic actuators (spring/diaphragm or piston types)
Material	Housing: Aluminum AlloyWetted Parts: Stainless Steel, Brass, EPDM O-rings
Environmental Rating	IP66/NEMA 4X (Dust/Water Resistant)
Temperature Range	Ambient: -40°C to +85°C (-40°F to 185°F)Storage: -55°C to +100°C
Certifications	ATEX, IECEx, FM, CSA, SIL 2, RoHS, CE
Power Supply	10.5–40 VDC (loop-powered or external)
Overpressure Limit	2× full-scale pressure (e.g., 200 kPa for 100 kPa range)
Mounting Standard	IEC 60534-6 (VDI/VDE 3845) direct-mount interface
Applications	Oil & gas, chemical processing, power generation, HVAC, and water/wastewater
Applications	Turbines, compressors, pumps, generators, and other rotating equipment

Product Description

Flowserve Logix 520MD+37-W1R300-000 Digital Valve Positioner

The Flowserve Logix 520MD+37-W1R300-000 Digital Valve Positioner represents the pinnacle of advanced valve automation technology, designed to deliver exceptional accuracy, reliability, and adaptability in critical industrial environments. Engineered by Flowserve, a global leader in flow control solutions, this high-performance positioner combines cutting-edge digital intelligence with robust mechanical design to optimize valve performance across diverse applications in oil and gas, chemical processing, power generation, and other demanding sectors.

At its core, the Logix 520MD+37-W1R300-000 is a microprocessor-based smart positioner that ensures precise control of linear or rotary valves by translating input signals into exact valve stem or shaft positioning. Utilizing advanced closed-loop feedback mechanisms, the device continuously adjusts actuator movement to maintain tight tolerances, minimizing deviation and ensuring process stability. This precision is critical for applications requiring granular flow regulation, such as refining, steam control, or hazardous fluid management.

Advanced Features for Enhanced Performance One of the standout features of the Logix 520MD+37-W1R300-000 is its compatibility with industry-standard communication protocols, including HART® and FOUNDATION™ Fieldbus. This enables seamless integration into distributed control systems (DCS) and programmable logic controllers (PLC), allowing real-time monitoring, configuration, and diagnostics via digital networks. The positioner's intuitive setup is further enhanced by an onboard user interface with a color display, offering straightforward navigation through menus and quick access to key parameters such as calibration, travel adjustment, and alarm thresholds.

The device's adaptive tuning capabilities ensure optimal performance across varying operating conditions. Its self-diagnostic algorithms automatically detect and compensate for changes in valve friction, wear, or process variability, maintaining consistent control without manual intervention. Additionally, the positioner supports partial stroke testing (PST) and valve signature analysis, empowering predictive maintenance strategies by identifying potential issues before they escalate into failures.

Rugged Design for Harsh Environments Built to withstand extreme industrial environments, the Logix 520MD+37-W1R300-000 features a durable aluminum alloy housing rated IP66/NEMA 4X for protection against dust, moisture, and corrosion. Its wide operating temperature range (-40°C to +85°C) ensures reliability in both frigid and high-heat settings, while vibration-resistant components maintain accuracy in dynamic environments such as offshore platforms or heavy machinery. The positioner's intrinsically safe design meets global safety standards, including ATEX, IECEx, and FM approvals, making it suitable for use in explosive atmospheres.

Operational Efficiency and Safety Safety and efficiency are paramount in industrial operations, and this positioner excels in both areas. Its fail-safe functionality allows users to predefine valve positions in the event of signal loss or power failure, preventing process upsets or hazardous leaks. The device also supports split-range operation, enabling coordinated control of multiple valves with a single input signal—a valuable feature for complex systems like boiler feedwater regulation or reactor temperature management.

Energy efficiency is another hallmark of the Logix 520MD+37-W1R300-000. By optimizing actuator air consumption and reducing unnecessary movement through intelligent control algorithms, the positioner lowers operational costs and extends equipment lifespan. Its low-power design also aligns with sustainability goals, minimizing compressed air waste and energy consumption.

Comprehensive Diagnostic Capabilities The positioner's embedded diagnostics provide actionable insights into valve health and performance. Users can track metrics such as operating hours, cycle counts, and travel deviation, while alerts notify operators of anomalies like excessive friction, hysteresis, or supply pressure drops. These diagnostics reduce unplanned downtime by enabling proactive maintenance and simplifying troubleshooting.

Company Profile

Company Profile

KeRul (WeiFang) Automation Equipment Co., Ltd. is speciallzed in industrialautomation instrument development, production and sales, technical servicesand supporting equipment supply of specialized companies, The mainproducts are fow meters, level meters, temperature meters, pressuremeters, electrical meters, thermal meters, programmable controller(PLC), Dcs distributed control system, eight series of more than 1,000specifcations. its products and technologies are widely used in electrlcpower, metallurgy, petrochemical, environ. mental protection, plastics,food,l printing, tobacco, textile, dyeing and other fields.

Our Service

OEM / ODM services
To meet the user diversified requirement, Holykell have established a set of customer service and technical support system with OEM / ODM order as the center, and responded and Handle the customer's requirements in a timely manner to ensure accurate delivery time and product quality.
Order services
Fastest reply:Professional sales engineers 7/24 online services
Payment terms:T/T ,Western union, Paypal, Credit Card, L/C others
Fast delivery: within 24 hours release the cargo (normal spec.), Customized 7-12 days after payment .
 
MAINTENANCE & AFTER-SALES SERVICES
Customer Feedback:  Sales engineers and technical engineers will be one-on-one service for you to exclude all obstacles when use our sensors.
Warranty period: 12 months
Product life-long maintenance: Holykell can provide you with the maintenance of the whole life of the sensors

Packaging & Shipping

FAQ

Q: How long will you give me the reply? 
A: We will reply to you as soon as we see the information 
Q: What is the delivery time? 
A:The products in stock will be shipped after receiving the payment, and the products that need to be ordered are subject to the factory time. 
Q: How about your package? 
A: Do not worry about the package, we have rich experience in packing.
Q: How about the payment terms? 
A:You can choose T/T.