Globe valve, also known as cut-off, is the most widely used type of valve, the reason why the globe valve is popular because of the friction between the sealing surface during opening and closing small, more durable, open height is not easy to manufacture, Easy maintenance, not only for low pressure, but also for high pressure. Closing valve closing principle is to rely on valve stem pressure, so that valve disc sealing surface and seat sealing surface close fit, to prevent the circulation of media. Globe only one-way media flow, the installation of a directional. Shut-off valve structure is greater than the gate valve length, while fluid resistance, long-term operation, the sealing reliability is not strong.
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