Fluorine plastic lining pneumatic valve overview

with the rapid development of modern petrochemical industry, used in the special working condition of some of the medium with strong corrosion resistance, even if it is stainless steel liner of pneumatic valve and rubber, enamel pneumatic valves also cannot meet the need. If use hartz alloy, monel alloy or as a pneumatic valve material such as alloy, because it contains a lot of Ni, Cr, Ti, Mo, Nb and rare metals such as Pt, its resources are limited, the price expensive.
based on the results of modern science and technology and molecular structure of fluorine plastic of fluorine carbon bonds and its shielding effect, it has excellent corrosion resistance, resistance to high ( Low temperature resistance, adhesion and electrical insulation, can resist almost all chemical medium ( Including corrosion of hydrofluoric acid, sulfuric acid and aqua regia.
using the plasticity of fluorine plastic processing principle, the fluorine plastic lined in ordinary steel casing body, to cut steel metal direct contact with the corrosive medium, not only solved the low fluorine plastic strength and can't bear high pressure problem, and solved the problem of the steel material is not resistant to corrosion.
fluorine-butterfly pneumatic valve is also called the fluorine plastic lining corrosion, pneumatic valve is ptfe resin ( Or profiles processed) Using the mold ( Or Mosaic) Method in steel or iron pneumatic valve pressure on a wall ( The same method is applicable to all kinds of pressure vessel and pipeline fittings lining) Or the outer surface of the pneumatic valve internal parts, the use of its unique properties in the strong resistance to corrosion medium made into all kinds of pneumatic valves and pressure containers.
fluorine-butterfly pneumatic valve is for pneumatic valve body medium can reach place all adopt the lining process, generally adopts the FEP lining materials ( F) And PCTFE ( F) Such as fluorine plastic, can be applied to various concentration of sulfuric acid, hydrochloric acid, hydrofluoric acid, aqua regia and all kinds of organic acid, strong acid, strong oxidizer and other corrosive medium pipeline, but lining fluorine pneumatic valve by the limitation of temperature is larger, Applies only to degrees Celsius - The medium between the ℃ ~ ℃) , can make fluorine plastic lined with pneumatic valves are: control of pneumatic valve, pneumatic ball valve, globe pneumatic valve, pneumatic diaphragm valve, pneumatic valve, cock pneumatic brake valve, check valve pneumatic valve, regulating valve, tank bottom feeding pneumatic valve, etc.
fluorine plastic lining pneumatic valve has excellent heat resistance and cold resistance, good electrical insulation and excellent chemical stability, resistant to strong acid, strong alkali and strong oxidizing corrosion, low frictional and self lubrication is very good.
fluorine plastic lining pneumatic valve, in accordance with the applicable temperature choose different materials ( The temperature of the metal materials and nonmetal materials can withstand the comprehensive evaluation. Such as steel lining fluorine plastic ( WCB + F material, the use of temperature for - ~ ℃. Limit the highest do not exceed ℃. Applicable medium to low viscosity acid and alkali corrosive medium, such as refers to acid, alkali, strong corrosive medium such as inorganic and organic solvent. Low viscosity is relatively higher levels of granular media, fluorine plastic lining pneumatic valve should try to avoid using solid granules medium. （ According to city longwan pneumatic valve pipe fittings)