Lined Fluorine Butterfly Valve for Chemical Media – Factory Direct Supply
The lined fluorine butterfly valve (also known as the PTFE-lined butterfly valve or lined fluoroplastic butterfly valve) is the preferred solution for these aggressive environments. This valve's body and disc are fully lined with a corrosion-resistant fluoropolymer such as PTFE (polytetrafluoroethylene) or F46 (FEP), completely isolating the metal structure from the corrosive process fluid . This article provides a 2026 price reference for factory-direct lined fluorine butterfly valves and outlines the essential selection parameters for chemical media applications.The main Butterfly Valve product names of China Butterfly Valve Network include:Manual Ventilation Butterfly Valve,ManualDesulfurization Wafer Butterfly Valve,Oversized Electric Soft-sealed Flange Butterfly Valve,Pneumatic Metal Hard-sealed Wafer Butterfly Valve,Pneumatic Hard-sealed Flange Butterfly alve,Pneumatic Soft-sealed Wafer Butterfly Valve,Pneumatic Single Eccentric Wafer Butterfly Valve,Pneumatic Soft-sealed Flange Butterfly Valve,Pneumatic Ventilation Butterfly Valve,Pneumatic High Vacuum Butterfly Valve.
2026 Price Reference for Factory-Direct Lined Fluorine Butterfly Valves
As of 2026, the price of a lined fluorine butterfly valve varies significantly based on size, body material, lining material, and actuation type. Factory-direct pricing offers a significant advantage, typically saving buyers 15% to 30% compared to distributor channels. The following reference ranges are based on manufacturer-direct and recent procurement data:
- DN50–DN100 manual models – Prices generally start from approximately RMB 450 to RMB 700 for a standard configuration with a WCB cast steel body, PTFE lining, and manual lever operation. For example, a procurement record shows a DN100 D371CF-10 fully-lined butterfly valve priced at approximately RMB 542 per unit . Another manufacturer quotes a DN50 pneumatic model at RMB 550 .
- DN125–DN200 manual models – Prices typically range from RMB 800 to RMB 1,600. A procurement record shows a DN150 D341F46-10C model at approximately RMB 1,109 per unit .
- DN250–DN500 manual models – Prices increase significantly with size. A DN500 D341CF-16 model is recorded at approximately RMB 6,876 per unit, reflecting the higher material and manufacturing costs for large-diameter valves .
- Electric and pneumatic actuated models – Adding an electric actuator or pneumatic actuator substantially increases the total cost. An electric lined fluorine butterfly valve (D941F46 series) generally falls in the RMB 680 to RMB 2,500+ range depending on size and actuator specifications, with the actuator typically accounting for 50% to 70% of the total package price .
Why Lined Fluorine Construction is Essential for Chemical Media
Standard metal valves are rapidly degraded by strong acids, alkalis, and aggressive solvents. The lined fluorine butterfly valve provides a robust solution by combining structural strength with exceptional chemical inertness.
Superior corrosion resistance is the defining characteristic. The fluoroplastic lining (PTFE, F46, PFA, or F3) provides exceptional chemical inertness, resisting attack from virtually all strong acids, alkalis, and organic solvents . PTFE-lined butterfly valves are specifically engineered for operation with highly aggressive substances such as chlorine, hydrogen fluoride, and concentrated sulfuric acid .
The lined fluorine butterfly valve is the premier flow control solution for chemical and corrosive media applications, offering exceptional corrosion resistance, reliable zero-leakage sealing, and long service life in aggressive environments. Factory-direct sourcing provides significant cost savings compared to distributor channels, with prices for manual DN50–DN100 models starting from approximately RMB 450 to RMB 700, DN125–DN200 models from RMB 800 to RMB 1,600, and electric actuated models generally in the RMB 680 to RMB 2,500+ range .
When specifying this valve, pay careful attention to the lining material (PTFE, F46, or PFA), body material (WCB or stainless steel), pressure rating, temperature range, and actuation requirements. For the most competitive and accurate pricing, contact specialized factory-direct manufacturers with your complete technical specifications and request material certifications, test reports, and compliance documentation to guarantee product quality. Investing in a correctly specified lined fluorine butterfly valve is not merely a purchase—it is an investment in the safety, reliability, and regulatory compliance of your chemical processing operations.
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