Sprayed Fluorine Lined Reactor

Electrostatic fluororesin spraying is one of the world's most advanced anti-corrosion technologies. The surface is degreased and derusted at high temperature, then sandblasted to form rough texture. A special primer is applied first. Fluorine powder gains electrostatic charge and evenly adheres to the surface under electric field, then melted via high-temperature baking into a compact protective coating. A 1mm coating requires 5 to 6 repeated spraying and baking cycles, with maximum thickness up to 2mm. Available materials include PTFE, PFA, FEP, ETFE, ECTFE and PVDF. Such equipment is widely used in chemical, papermaking, food and semiconductor industries.

Working Principle

Before spraying, remove burrs and impurities, eliminate oil contamination and conduct sand blasting to Sa2 grade. Coat the surface with special primer. Charged fluorine powder evenly attaches to the workpiece and fuses into firm protective layer after heating. Multiple cycles ensure the coating reaches specified thickness.

Features & Advantages

Applicable media: Acids, alkalis, organic solvents and corrosive substances, pH 1-14

Working pressure: -0.098MPa ~ +2.5MPa

Working temperature: -100℃ ~ +200℃

Manufacturing Standards：GB150-2011, 

HG/T20678-2000, 

ASMEHG/T 4112-2009, 

HG/T 4088-2009

Tank types: Vertical tank, horizontal tank

Performance merits: High purity with low precipitation, compliant with photovoltaic industry standards.

Strong adhesion, resistant to extreme negative pressure and vacuum condition.

High heat conductivity, suitable for heat preservation application.

Ultra-smooth surface with low friction coefficient.

Structural merits: Applicable to regular and irregular complex structures.

Service life: Over 10 years under normal operation, no obvious lining aging.

Lining Materials

Shell: Carbon steel, 304/316L stainless steel, titanium alloy, 2205 duplex stainless steel

Lining material: ECTFE(F30), ETFE(F40), FEP, PFA

Sealing gasket: PTFE, PTFE encapsulated rubber

Fastener: Galvanized bolt, stainless steel bolt, fluorine-lined bolt

Tank Accessories

Pressure balance parts: Nitrogen sealing device, breather valve, flame arrester

Material access parts: Fluorine-lined ball valve, electric/pneumatic fluorine-lined ball valve, diaphragm pump

Metering equipment: PP metering pump, PVDF metering pump

Observation equipment: Fluorine-lined sight glass, fluorine-lined liquid level gauge