fluorine lining gate valve

Fluorine-lined diaphragm valve is a special form of valve with shut-off function

by:Lianke Valve     2022-07-02
Fluorine-lined diaphragm valve is a special form of valve with cut-off function. The principle of fluorine-lined diaphragm valve is to use compressed air as the power to drive the drive screw to move the valve core up and down, and pull the diaphragm to move up and down to close and open. Features: compact, simple, small size, beautiful appearance; the switch is guided and moves smoothly; the closing torque is small, the service life is long, ≥300,000 times; the diaphragm compression can be automatically adjusted, the pressure is uniform, and the sealing is reliable; diaphragm mounted The spool is push-in, which is easy to replace. Design features of fluorine-lined diaphragm valve: 1. The biggest difference between fluorine-lined diaphragm valve and other valves is that it adopts a structure without stuffing box; the diaphragm of fluorine-lined diaphragm valve can completely isolate the corrosive medium in the flow channel from all driving parts. state, thus eliminating the disadvantages such as running, running, dripping and leaking of the usual valve. 2. Because the flow channel of the diaphragm valve is smooth and the flow resistance is small, a large flow rate can be obtained. 3. The valve body cavity of the fluorine-lined diaphragm valve is lined with perfluorinated F46. Therefore, it has excellent corrosion resistance characteristics. 4. Since the seal is an elastic tetrafluoro diaphragm. Therefore, it also has better sealing and minimum closing force. 5. The valve consists of valve body, valve cover, valve disc, valve stem, diaphragm and other driving parts. 6. The opening and closing of the valve of the fluorine-lined diaphragm valve is achieved by rotating the handwheel. The upper end of the valve cover is marked with a display color indicating the opening or closing position of the valve to indicate the opening and closing stroke of the valve. When the handwheel is placed clockwise, the handwheel will move down, and the valve flap will drive the diaphragm down to cut off the passage; otherwise, the valve will be opened, and the color will be revealed. The fluorine-lined diaphragm valve is a special form of valve with cut-off function. Its opening and closing parts are composed of a steel valve disc and a diaphragm made of soft materials (rubber and fluoroplastic composite), and the valve body cavity is connected with the valve cover. The lumen is separated to achieve the purpose of cutting off the medium in the tube.
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