Fluorine-lined butterfly valve
--principle of pneumatic fluorine-lined butterfly valve Pneumatic fluorine-lined butterfly valve adopts a PTFE-lined butterfly plate with spherical sealing surface, the valve is easy to operate, has tight sealing performance, and has a long service life; or to adjust the flow. Pneumatic valves are used where reliable sealing and good regulating characteristics are required. The valve body adopts a split type, and the seal at both ends of the valve shaft is controlled by the fluorine rubber on the rotating base surface between the disc and the valve seat; it ensures that the valve shaft does not come into contact with the fluid medium in the cavity. It is widely used in the transportation of liquid and gas in various types of industrial pipelines, and the use of severe corrosive media, such as sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine, strong alkali, aqua regia and other highly corrosive media. The main features of the pneumatic fluorine-lined butterfly valve are: 1. The design is novel and reasonable, the structure is unique, the weight is light, and the opening and closing is rapid. 2. Small operating torque, convenient operation, labor-saving and smart. 3. It can be installed in any position and easy to maintain. 4. The seals can be replaced, and the sealing performance is reliable and can achieve zero leakage of bidirectional sealing. 5. The sealing material has the characteristics of aging resistance, corrosion resistance and long service life. Pneumatic fluorine-lined butterfly valve executive standard: design standard: GB/T2238-1989 flange connection size: GB/T9113.1-2000; GB/T9115.1-2000; JB78 structure length: GB/T12221-1989 pressure test: GB/ T13927-1992; JB/T9092-1999 actuator: adopt the new series GT type pneumatic actuator, there are double-acting and single-acting (spring return), gear transmission, safe and reliable; large-diameter valve adopts series AW type pneumatic actuator Fork type transmission, reasonable structure, large output torque, double-acting and single-acting. 1. Gear type double piston, large output torque and small volume. 2. The cylinder is made of aluminum-gold material, which is light in weight and beautiful in appearance. 3. Manual operating mechanisms can be installed on the top and bottom. 4. The rack-type connection can adjust the opening angle and rated flow. 5. The actuator can be equipped with electric signal feedback indication and various accessories to realize automatic operation. 6. IS05211 standard connection provides convenience for product installation and replacement. 7. Adjustable screws at both ends enable standard products to have an adjustable range of ±4° at 0° and 90°. Ensure synchronization accuracy with the valve.
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