The lined fluorine globe valve DN50 has become the industry standard for these challenging applications, combining the structural strength of carbon steel or cast iron with the exceptional chemical inertness of fluoroplastic linings. This article provides a comprehensive 2026 price reference and outlines the critical selection parameters for this specialized valve.The main globe valve product names of China globe Valve Network include:Electric Flange Straight-through Globe Valve,External Thread Ammonia Globe Valve,Electric Cast Steel Self-sealing Tightly Globe Valve,Flange,Welding Water Sealing Globe Valve,Flange Straight-through Copper Globe Valve,Forged SteelStraight-through Globe Valve,Flange Straight-through Ammonia Globe Valve,Flange Fluorine-lined Globe Valve.

2026 Price Reference for Lined Fluorine Globe Valve DN50

As of 2026, the price of a lined fluorine globe valve DN50 varies significantly based on the lining material, actuation type, and brand. Based on current market data, the following reference ranges apply:

For a manual lined globe valve with F46 lining and a cast steel body, the price typically falls in the range of approximately $110 to $210 USD per unit . A specific model, the J44F46-16C-DN50 flanged angle-pattern lined globe valve with F46 lining, is listed at approximately ¥750 RMB (about $105 USD) .

Key Factors Influencing the Price of DN50 Lined Fluorine Globe Valves

Understanding what drives the cost of a lined fluorine globe valve is essential for making an informed procurement decision.

Actuation Type

Manual handwheel operation is the most economical option. Pneumatic actuators and electric actuators for remote automatic control add the cost of the actuator and accessories, substantially increasing the total price . Electric actuated models such as the J941F46 series command the highest prices .

Valve Body Material and Connection Standards

The valve body is typically made of cast steel (WCB) or cast iron , with carbon steel being the standard choice for most corrosive applications . Stainless steel bodies are available for more demanding services but increase the price. Flanged connections are standard, and compliance with ANSI/JIS flange standards or other customization requirements can also raise the cost .

Why Lined Fluorine Construction is Essential for Strongly Corrosive Media

The lined fluorine globe valve offers several distinct advantages that make it the preferred solution for handling aggressive chemicals.

Superior corrosion resistance is the defining characteristic. The fluoroplastic lining (PTFE, FEP, or PFA) provides exceptional chemical inertness, resisting attack from virtually all strong acids, alkalis, and organic solvents . The lining completely isolates the metal body from the process fluid, preventing corrosion and contamination.

Combined strength and chemical resistance is achieved through the lined design. The carbon steel or cast iron body provides the structural strength and pressure integrity, while the fluoroplastic lining provides the chemical barrier . This dual construction ensures the valve can withstand both mechanical stress and chemical attack.

Temperature versatility** is available through different lining materials. Standard F46 and PTFE linings are suitable for temperatures up to approximately 150°C, while PFA linings can handle temperatures up to 200°C . Different lining materials cover temperature ranges from ≤80°C to ≤150°C .

Proven reliability in severe chemical services has made lined globe valves the standard choice for handling media such as sulfuric acid, hydrochloric acid, hydrofluoric acid, nitric acid, wet chlorine, and strong alkalis . The valve disc and stem are designed as an integral unit, preventing the possibility of internal components being forced out by pressure fluctuations .

Pressure Rating and Connection Standard

DN50 lined globe valves are typically available in pressure ratings from **PN10 to PN16 (1.0 to 1.6 MPa) . Ensure the valve's pressure rating matches your system's maximum operating pressure. Flanged connections are standard, and the flange drilling must conform to your piping standard (e.g., GB/T, DIN, ANSI, or HG/T standards) .

Determine whether manual, pneumatic, or electric operation is required. Manual operation is most economical for simple on/off applications. Pneumatic actuators provide remote operation with explosion-proof characteristics. Electric actuators offer precise control and integration with automated systems .

Quality Documentation

Always request material test reports and spark test reports to verify the lining integrity . Provide the supplier with the exact medium composition (e.g., concentrated sulfuric acid, hydrochloric acid, hydrofluoric acid), working temperature, and pressure to avoid incorrect selection .

The lined fluorine globe valve DN50 is the proven solution for handling strongly corrosive media, offering the ideal combination of structural strength and exceptional chemical resistance. As of 2026, manual models are priced in the range of approximately $110 to $210 USD, while pneumatic actuated versions range from $300 to $520 USD, and electric actuated models range from $410 to $680 USD. Premium imported brands or PFA-lined versions exceed $680 USD per unit .

When selecting this valve for corrosive media, pay careful attention to the lining material (F46, PTFE, or PFA), temperature rating (150°C for F46, 200°C for PFA), pressure rating (PN10 to PN16), and actuation requirements. Always verify quality documentation and request spark test reports to ensure lining integrity. Investing in a correctly specified lined fluorine globe valve is not merely a purchase—it is an investment in operational safety, regulatory compliance, and the long-term reliability of your chemical processing operations.

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