How to correctly install pneumatic valve fluorine-butterfly

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.
ptfe, commonly known as 'plastics king' is DUPONTCO by the United States. , LTD in year, first developed for industrialized production, from the perspective of industrial application has established history, and truly to be widely used in pneumatic valve industry is not a long time.
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 ℃ ~ ℃) To make lining fluorine plastic pneumatic valves are: fluorine-butterfly butterfly pneumatic valve, pneumatic valve fluorine-butterfly ball, lining fluoride by pneumatic valve, fluorine-butterfly pneumatic diaphragm valve, brake lining fluorine pneumatic valve, pneumatic valve fluorine-butterfly cock, etc.
how to correctly install pneumatic valve fluorine-butterfly:
and when installation, attention should be paid to proofread the pneumatic valve ( Such as pneumatic valve type, nominal size, pressure rating, material, etc. ) Is consistent with the requirement, the flow of logo on the shell is consistent with the pipe flow.
and when installation, try to be installed horizontally, the pneumatic valve lever up. Prevent skewed pneumatic valve pneumatic valve installed under the natural state, prevent pneumatic valves for piping and support the installation of large stress, lifting installation may not use the pneumatic lifting valve handwheel.
, installation, and pneumatic fluorine plastic lined on both ends of the valve sealing surface of the connection pipe flange sealing surface if it is metal, must add fluorine plastic sealing gasket. With the connection of the flange sealing surface should be according to the figure of A structure, not using the structure of the figure B, otherwise it will lead to premature pneumatic valve sealing surface damage or leakage.
, if the pipeline has enough strength to bear the weight of the pneumatic valve and operating torque, the pneumatic valve can not support, otherwise, should transform fluorine pneumatic valve set special bearing point.
, after installation, during the pressure testing system or pipe, pneumatic valve must be in the fully open position.
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