FVF Flange Lined Fluorine Butterfly Valve

FVF Flange lined fluorine butterfly valve

FVF Worm drive fluorine-lined butterfly valve is suitable for the transportation of liquid and gas (including steam) in various types of industrial pipelines, especially in the use of severely corrosive media, such as: sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine, strong alkali, Strong corrosive medium such as aqua regia.

Flange lined fluorine butterfly valve features:

1. The centerline butterfly valve of the fluorine-lined butterfly valve is that the entire butterfly plate and the valve seat are concentric (centerline) in a 360-degree circle, with a two-way sealing function, and the pressure and flow can be adjusted freely

2. The eccentric butterfly valve of the fluorine-lined butterfly valve is eccentric in two-dimensional direction, and the cam effect produced by the eccentricity of the two-dimensional direction will cause the sealing pair to generate sufficient sealing specific pressure, and with the increase of the working pressure, the sealing effect is more ideal

3. The four-stage loading elastic seal of the fluorine-lined butterfly valve absolutely guarantees zero leakage inside and outside the valve; the special transition curve outside the peripheral connection of the shaft head and the disc and the reasonable interference of the valve seat; the end face of the shaft head adopts elastic O A combination of rigid washers and elastic rubber pads at the ring and the shaft shoulder. The radial direction of the shaft adopts the combination of O-ring and metal gasket; the valve seat is embedded in the valve body groove with elastic strip;

4. The fluorine-lined butterfly valve adopts adjustable elastic pin for positioning, accurate positioning and brief structure. (O-rings are used as a safety measure to prevent accidental leakage)

5. The flanged double eccentric butterfly valve with fluorine-lined butterfly valve is suitable for high pressure occasions.