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PTFE Lined WCB Ball Valve - Flange Type, DN50-DN300, Corrosion Resistant - China Suppliers & Factory
| Valve Type: | Flange ball valve | Structure: | 2PCS type |
| Standard: | BS5351 | Workmanship: | Investment casting |
| Sealing Direction: | Single-directional | Sealing Grade: | Zero leakage |
| Temperature: | -20°C < T < 120°C | Operation: | Handle |
Characteristics
The PTFE, FEP, PFA and other fluoroplastics lining the inner cavity of the valve body have extremely strong chemical stability and can withstand almost all strong corrosive media such as hydrochloric acid, sulfuric acid, nitric acid, hydrofluoric acid, strong alkali, organic solvents, strong oxidants, etc., and are not affected by medium concentration and temperature (within the applicable range of fluoroplastics).
Compared to stainless steel ball valves, its corrosion resistance range covers strong oxidizing and acidic media (such as concentrated nitric acid and hydrofluoric acid) that stainless steel cannot cope with.
Advantages
1
Super Strong Corrosion Resistance, Suitable for Extreme Media
Fluoroplastic lining layer has extremely high chemical stability and can withstand almost all strong corrosive media such as hydrochloric acid, sulfuric acid, nitric acid, hydrofluoric acid, strong alkali, organic solvents, etc. It is not affected by medium concentration and temperature, far exceeding the corrosion resistance of stainless steel ball valves.
2
Smooth Flow Channel, Low Resistance and Anti-Scaling
The surface smoothness of the fluoroplastic lining layer is high, the friction coefficient is extremely low, the water head loss is small when the medium flows through, and it is not easy to adhere to impurities in the medium, which can effectively prevent pipeline scaling, especially suitable for viscous and corrosive media containing particles (such as chemical slurries).
3
Compact Structure, Easy Installation and Maintenance
The flange connection method does not require welding and is easy to disassemble and assemble. The lining layer is wear-resistant, anti-aging, and has a long service life. Routine maintenance only requires regular inspection of seals and valve stem packing, without frequent replacement of valve body.
Packing
Standard export wooden case packaging
Application Scenarios
The PTFE lined ball valves, with the superior corrosion resistance of fluoroplastic lining and the fluid control advantages of ball valves, are specialized valves for working in highly corrosive media such as chemical, metallurgical, and environmental protection.
Frequently Asked Questions
What types of corrosive media can the PTFE lined flange ball valve handle?
The PTFE lined flange ball valve can handle almost all strong corrosive media, including hydrochloric acid, sulfuric acid, nitric acid, hydrofluoric acid, strong alkali, organic solvents, and strong oxidants. Its fluoroplastic lining provides superior resistance unaffected by medium concentration or temperature within the applicable range.
What is the operating temperature range of this ball valve?
This flange ball valve is designed to operate within a temperature range of -20°C to 120°C, making it suitable for a wide variety of industrial processes involving both cold and moderately high-temperature media.
How does a PTFE lined ball valve compare to a stainless steel ball valve in terms of corrosion resistance?
PTFE lined ball valves outperform stainless steel ball valves in corrosion resistance, particularly for strong oxidizing and acidic media such as concentrated nitric acid and hydrofluoric acid — media that stainless steel cannot adequately resist. The fluoroplastic lining ensures zero degradation in highly aggressive chemical environments.
What standard does this flange ball valve comply with, and what is its sealing performance?
This valve complies with the BS5351 standard. It features single-directional sealing with a zero-leakage sealing grade, ensuring reliable fluid control and preventing any medium from bypassing the valve seat under normal operating conditions.
Is this valve easy to install and maintain?
Yes. The flange connection design eliminates the need for welding, making installation and removal straightforward. The fluoroplastic lining is wear-resistant and anti-aging, resulting in a long service life. Routine maintenance involves only periodic inspection of the seals and valve stem packing — no frequent replacement of the valve body is needed.
What industries and application scenarios is this PTFE lined ball valve suitable for?
This valve is widely used in industries that involve highly corrosive media, including chemical processing, metallurgy, and environmental protection. It is especially well-suited for viscous or particle-containing corrosive fluids such as chemical slurries, where its smooth lining prevents scaling and buildup.