fluorine-butterfly gate valve is one of the most common switch valve. Wedge plunger used to seal or cut off the medium in pipeline. Wedge gate valves are not allowed a few openings as a conduit to avoid high speed of the throttle device. Flow of medium erosion and accelerate the sealing surface damage. 聚全氟乙丙烯( F46） PCTFE ( F3) Lining fluoride valve is suitable for various concentrations of aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid and various organic acid, strong acid and strong oxidizer, in - 50°~ 150°C诉。 FEP is also applicable to various concentrations of strong alkaline organic solvent and other corrosive gas and liquid medium pipeline. A, the characteristics of the gate 1. Body has two kinds of flat and round body shapes: national standard body adopts the round shape, ANSI class valves DN 300 lb or less flat body, DN 400 lb or USES the round body, valve body, valve cover lumen and gate, direct part contact medium, such as the outer surface of the valve stem, lined with fluoroplastic, such as FEP ( F46） ; 2. Sealing of FPF ( F46） /聚全氟乙丙烯( F46） Or other material combination, small friction coefficient, low opening and closing torque; 3, packing PTFE ( F4) Standard packing, sealed performance is good, maintenance easy to change; 4, using the elastic plunger, can compensate the plunger seal face and seat sealing surface between the wedge Angle of deviation, good tightness, sealing effect is ideal; 5. Medium can be from any direction on both sides of the through the gate, is suitable for the middle direction may change the pipeline on the operation of the actuator.

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