Fluorine lined ball valve-corrosion resistant ball valve

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Publication Date : 2020-08-10

Fluorine-lined ball valves are corrosion-resistant and corrosion-resistant valves specially used in various pipelines containing corrosive media. Different lining materials can be selected according to different working conditions, such as F46, F4, PFA and other corrosion-resistant and aging-resistant materials. This type of fluorine-lined ball valve has high chemical stability and reliable corrosion resistance and sealing performance. It can be used for any weak or strong corrosive chemical media, such as various acids, alkalis, salts and other corrosive media for switching or regulation.


Fluorine-lined ball valves have corrosion resistance. The inner cavity and ball of the valve body are lined with 2.5-3mm thick F46, FA or PFA, which can resist acid, alkali, strong corrosion, etc., and have small flow resistance, strong flow capacity, good flow characteristics, and soft sealing valve seat with good sealing performance. According to different control requirements, you can choose to assemble manual operation, handwheel operation, electric control, or air source control. Different drives can achieve switching or regulation functions!


Nominal diameter: DN15~DN300 (mm)


Nominal pressure: PN1.0, 1.6MPa


Connection form: flange


Structural form: O-type ball valve core


Valve body material: carbon steel WCB, stainless steel 304, 316, 316L


Applicable medium: any corrosive chemical medium


Valve body form: two-stage valve body (floating ball)


Sealing packing: polytetrafluoroethylene packing


Lining material: full lining F46, F4, PFA


Leakage Q: Soft seal: no leakage


Applicable temperature: -29~+180℃


Drive form: manual, electric, pneumatic


Control mode: ordinary switch type (two-position switch mode), intelligent adjustment (4~20mA analog signal control)


Applicable instructions for fluorine-lined ball valves


★ The medium temperature used cannot exceed 150℃ (The medium temperature can reach 150℃ for a short time, and the long-term use temperature should be around 120℃). Otherwise, the F46 lining of each component of the valve is easy to soften and deform, causing the valve to not close tightly and large leakage.


★ If the medium temperature used by the user is below 180℃ for a short time and below 150℃ for a long time, another fluoroplastic, PFA, can be selected, but the price of PFA fluoroplastic is more expensive, so you should ask for a price in advance when matching.


★ Do not have negative pressure. The electric fluoroplastic lined ball valve should avoid negative pressure in the pipeline. If there is negative pressure, it is easy to cause the fluoroplastic lining layer in the inner cavity of the valve to be sucked out (bulged) and peeled off, resulting in failure of the valve to open or close.


★ Pressure and pressure difference should be controlled within the allowable range.


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