Lined fluorine globe valve has the following advantages: simple structure, manufacturing and maintenance more convenient. Small work schedule, opening and closing time is short. Good sealing, sealing surface friction, long life. Lining fluorine valve shortcomings are as follows: Fluid resistance, the required force to open and close larger. Not suitable for particles with a larger viscosity, easy to caking medium. Poor regulation performance. High pressure cut-off valve type according to the position of the stem thread male Screw type, female type. By media flow points, there are straight-through, DC and angle. Globe valve by sealing form points, there are packing seal globe valve and bellows seal valve. Fluorine-lined globe valve installation and maintenance should note the following: Handwheel, handle-operated globe valve can be installed in any position on the pipeline. Hand wheel, handle and Wei moving mechanism, do not allow lifting. The flow direction of the medium should be the same as the direction of the arrow shown on the valve body. Cut-off valve, also called cut-off valve, is the most widely used type of valve, it is popular because of the friction between the sealing surfaces during opening and closing, is relatively durable, opens a small height, is easy to manufacture, Convenient, not only for low pressure, but also for high pressure. Its closure principle is to rely on the valve stem pressure, so that the sealing surface of valve flap and seat sealing surface closely fit, to prevent the flow of media. Globe only one-way media flow, the installation of a directional. Its structure is longer than the gate valve, while fluid resistance, long-term operation, the sealing reliability is not strong. Globe valve is divided into three categories: Straight-through, right angle and DC oblique stop valve.
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