Fluorine lined gate valve is a kind of opening and closing valve with see, using both sides of the face sealing wedge-shaped gate to connect or cut off the pipeline medium, wedge gate valve is not allowed to micro-open in the pipeline for throttling device, so as not to accelerate the damage of the sealing surface due to the high-speed flow of the media erosion.FEP (F46), PCTFE (F3) fluorine lined valves for use in the concentration of hydrofluoric acid at -50 ℃ ~ 150 ℃, and acid, strong acid, strong oxidizing agent, FEP is also suitable for the concentration of strong alkali solvents and other corrosive gases, liquid media pipeline use. Oxidizer, FEP is also suitable for the concentration of strong alkali solvents and other corrosive gases, liquids and media pipeline use.

Fluorine lined gate valve body two shapes, GB valves with round body, ANSI pound valves DN ≤ 300Lb with flat body, DN ≥ 400Lb with round body, the valve body, the inner cavity of the bonnet and the outer surface of the gate, stem and other parts in direct contact with the media, are lined with fluorine plastics, such as FEP (F46), vice versa, for the combination of FPF (F46) / FEP (F46) or other materials, the coefficient of friction Small, low opening and closing torque;

Fluorine lined gate valve adopts PTFE (F4) standard packing, good sealing performance, easy maintenance and replacement, elastic gate, can compensate for the wedge angle deviation between the sealing surface of the gate and the sealing surface of the valve seat, good coincidence, good sealing, can be passed through the gate valve from any direction on both sides, suitable for pipeline where the direction of the medium may be changed to act as a device for opening and closing.