By combining the strength of a carbon steel or stainless steel body with a fluoroplastic lining, these valves provide robust structural integrity and exceptional chemical resistance where unlined valves would rapidly fail . This article provides essential pricing information and key selection parameters for DN100 lined gate valves for corrosive service.The main gate valve product names of China gate valve Network include:API Pneumatic Lug&wafer Knife-shaped Gate Valve,API Cryogenic Gate Valve,API Flange Gate Valve,Bevel Gear Slurry Valve,Electric Rising Stem Double Disc Parallel Gate Valve,Electric Non-rising Stem Single Disc Wedge Gate Valve,Electric Rising Stem Single Disc Wedge Gate Valve.

Price Reference for DN100 Lined Gate Valve

Prices for DN100 lined gate valves vary based on body material, lining type, and actuation:

Manual handwheel models (Z41F46-16C): Available from approximately $260 to $500 USD for WCB carbon steel body with FEP lining, depending on manufacturer and specification .

Electric actuated models (Z941F46-16C): Priced from approximately $430 to $555 USD, with electric actuation adding approximately $200 to the base manual valve cost .

Stainless steel body models (Z41F46-16P): Available from approximately $320 USD for manual configurations, offering enhanced corrosion resistance in the event of lining damage .

Domestic Chinese market reference prices: Manual Z41F46-16C DN100 valves range from approximately 500 to 1,270 CNY ($70 to $180 USD), with premium electric models ranging from 890 to 1,000+ CNY ($125 to $140+ USD) .

Bulk orders typically qualify for 10-15% volume discounts. PFA lining (for higher temperature service) and specialized certification packages command premium pricing .

Fluoroplastic Lining Material Options

FEP (F46) lining is the most common choice for lined gate valves, providing exceptional chemical resistance to a wide range of aggressive media . FEP-lined valves are suitable for operating temperatures from -50°C to 150°C and handle media including various concentrations of aqua regia, sulfuric acid, hydrochloric acid, organic acids, strong oxidizers, strong alkalis, and organic solvents . Alternative lining materials include PFA for higher temperature applications and PTFE for specific chemical compatibility requirements .

Technical Specifications for Corrosive Service

DN100 lined gate valves feature a wedge gate design with all wetted surfaces fully encapsulated in FEP or other fluoroplastic material . The valve body is typically ASTM A216 WCB carbon steel, with CF8/CF8M stainless steel available for enhanced safety where lining damage could occur . The sealing pair is FEP/FEP or FEP/PTFE combinations with low friction coefficients for reduced operating torque .

Key design features include a flexible gate that compensates for wedge angle variations, ensuring reliable sealing performance; PTFE standard packing for reliable stem sealing; and bidirectional flow capability .

Selection Considerations

When specifying a lined gate valve for corrosive service, verify the lining material is compatible with your specific media and operating temperature. FEP handles most aggressive chemicals to 150°C; for higher temperatures, consider PFA lining . Note that lined gate valves are not suitable for throttling applications, as partial opening causes high-velocity flow erosion of the lining . Select manual or electric actuation based on operational requirements, with electric actuation adding approximately $200 to the valve cost .

Summary

DN100 lined gate valves provide reliable isolation for highly corrosive media service with prices starting from approximately $260 USD for manual WCB body models and $430 USD for electric actuated configurations. FEP fluoroplastic lining protects the valve from strong acids, alkalis, and aggressive chemicals at temperatures up to 150°C. Selection requires careful evaluation of lining material compatibility, temperature rating, and actuation type based on specific application requirements.

Do you still need to know or purchase the following gate valve products: